diff --git a/Gemfile b/Gemfile
index 92c4aea..7149f8b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,6 +16,7 @@ end
 
 group :test do
   gem "vcr"
+  gem "multi_json"
   gem "webmock"
   gem "coveralls", "~>0.8", require: false
   gem "simplecov", "~>0.10", require: false
diff --git a/lib/github_changelog_generator.rb b/lib/github_changelog_generator.rb
index c6a47a8..7b4637e 100755
--- a/lib/github_changelog_generator.rb
+++ b/lib/github_changelog_generator.rb
@@ -1,7 +1,6 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
 
-require "github_api"
 require "octokit"
 require 'faraday-http-cache'
 require "logger"
diff --git a/lib/github_changelog_generator/array.rb b/lib/github_changelog_generator/array.rb
index 83fcfcd..752e2df 100644
--- a/lib/github_changelog_generator/array.rb
+++ b/lib/github_changelog_generator/array.rb
@@ -1,13 +1,13 @@
 class Array
   def stringify_keys_deep!
     new_ar = []
-    self.each do |value|
+    each do |value|
       new_value = value
-      if value.is_a? Hash or value.is_a? Array
+      if value.is_a?(Hash) || value.is_a?(Array)
         new_value = value.stringify_keys_deep!
       end
       new_ar << new_value
     end
     new_ar
   end
-end
\ No newline at end of file
+end
diff --git a/lib/github_changelog_generator/fetcher.rb b/lib/github_changelog_generator/fetcher.rb
deleted file mode 100644
index 1f425dc..0000000
--- a/lib/github_changelog_generator/fetcher.rb
+++ /dev/null
@@ -1,226 +0,0 @@
-# frozen_string_literal: true
-module GitHubChangelogGenerator
-  # A Fetcher responsible for all requests to GitHub and all basic manipulation with related data
-  # (such as filtering, validating, e.t.c)
-  #
-  # Example:
-  # fetcher = GitHubChangelogGenerator::Fetcher.new options
-
-  class Fetcher
-    PER_PAGE_NUMBER = 30
-    MAX_SIMULTANEOUS_REQUESTS = 25
-    CHANGELOG_GITHUB_TOKEN = "CHANGELOG_GITHUB_TOKEN"
-    GH_RATE_LIMIT_EXCEEDED_MSG = "Warning: Can't finish operation: GitHub API rate limit exceeded, change log may be " \
-    "missing some issues. You can limit the number of issues fetched using the `--max-issues NUM` argument."
-    NO_TOKEN_PROVIDED = "Warning: No token provided (-t option) and variable $CHANGELOG_GITHUB_TOKEN was not found. " \
-    "This script can make only 50 requests to GitHub API per hour without token!"
-
-    def initialize(options = {})
-      @options = options || {}
-      @user = @options[:user]
-      @project = @options[:project]
-      @github_token = fetch_github_token
-      @github_options = { per_page: PER_PAGE_NUMBER }
-      @github_options[:oauth_token] = @github_token unless @github_token.nil?
-      @github_options[:endpoint] = @options[:github_endpoint] unless @options[:github_endpoint].nil?
-      @github_options[:site] = @options[:github_endpoint] unless @options[:github_site].nil?
-
-      @github = check_github_response { Github.new @github_options }
-    end
-
-    # Returns GitHub token. First try to use variable, provided by --token option,
-    # otherwise try to fetch it from CHANGELOG_GITHUB_TOKEN env variable.
-    #
-    # @return [String]
-    def fetch_github_token
-      env_var = @options[:token] ? @options[:token] : (ENV.fetch CHANGELOG_GITHUB_TOKEN, nil)
-
-      Helper.log.warn NO_TOKEN_PROVIDED unless env_var
-
-      env_var
-    end
-
-    # Fetch all tags from repo
-    # @return [Array] array of tags
-    def get_all_tags
-      print "Fetching tags...\r" if @options[:verbose]
-
-      check_github_response { github_fetch_tags }
-    end
-
-    # This is wrapper with rescue block
-    # @return [Object] returns exactly the same, what you put in the block, but wrap it with begin-rescue block
-    def check_github_response
-      begin
-        value = yield
-      rescue Github::Error::Unauthorized => e
-        Helper.log.error e.response_message
-        abort "Error: wrong GitHub token"
-      rescue Github::Error::Forbidden => e
-        Helper.log.warn e.response_message
-        Helper.log.warn GH_RATE_LIMIT_EXCEEDED_MSG
-      end
-      value
-    end
-
-    # Fill input array with tags
-    # @return [Array] array of tags in repo
-    def github_fetch_tags
-      tags = []
-      response = @github.repos.tags @options[:user], @options[:project]
-      page_i = 0
-      count_pages = response.count_pages
-      response.each_page do |page|
-        page_i += PER_PAGE_NUMBER
-        print_in_same_line("Fetching tags... #{page_i}/#{count_pages * PER_PAGE_NUMBER}")
-        tags.concat(page) unless page.nil?
-      end
-      print_empty_line
-
-      if tags.empty?
-        Helper.log.warn "Warning: Can't find any tags in repo.\
-Make sure, that you push tags to remote repo via 'git push --tags'"
-      else
-        Helper.log.info "Found #{tags.count} tags"
-      end
-      tags
-    end
-
-    # This method fetch all closed issues and separate them to pull requests and pure issues
-    # (pull request is kind of issue in term of GitHub)
-    # @return [Tuple] with (issues, pull-requests)
-    def fetch_closed_issues_and_pr
-      print "Fetching closed issues...\r" if @options[:verbose]
-      issues = []
-
-      begin
-        response = @github.issues.list user: @options[:user],
-                                       repo: @options[:project],
-                                       state: "closed",
-                                       filter: "all",
-                                       labels: nil
-        page_i = 0
-        count_pages = response.count_pages
-        response.each_page do |page|
-          page_i += PER_PAGE_NUMBER
-          print_in_same_line("Fetching issues... #{page_i}/#{count_pages * PER_PAGE_NUMBER}")
-          issues.concat(page)
-          break if @options[:max_issues] && issues.length >= @options[:max_issues]
-        end
-        print_empty_line
-        Helper.log.info "Received issues: #{issues.count}"
-
-      rescue Github::Error::Forbidden => e
-        Helper.log.warn e.error_messages.map { |m| m[:message] }.join(", ")
-        Helper.log.warn GH_RATE_LIMIT_EXCEEDED_MSG
-      end
-
-      # separate arrays of issues and pull requests:
-      issues.partition do |x|
-        x[:pull_request].nil?
-      end
-    end
-
-    # Fetch all pull requests. We need them to detect :merged_at parameter
-    # @return [Array] all pull requests
-    def fetch_closed_pull_requests
-      pull_requests = []
-      begin
-        response = if @options[:release_branch].nil?
-                     @github.pull_requests.list @options[:user],
-                                                @options[:project],
-                                                state: "closed"
-                   else
-                     @github.pull_requests.list @options[:user],
-                                                @options[:project],
-                                                state: "closed",
-                                                base: @options[:release_branch]
-                   end
-        page_i = 0
-        count_pages = response.count_pages
-        response.each_page do |page|
-          page_i += PER_PAGE_NUMBER
-          log_string = "Fetching merged dates... #{page_i}/#{count_pages * PER_PAGE_NUMBER}"
-          print_in_same_line(log_string)
-          pull_requests.concat(page)
-        end
-        print_empty_line
-      rescue Github::Error::Forbidden => e
-        Helper.log.warn e.error_messages.map { |m| m[:message] }.join(", ")
-        Helper.log.warn GH_RATE_LIMIT_EXCEEDED_MSG
-      end
-
-      Helper.log.info "Fetching merged dates: #{pull_requests.count}"
-      pull_requests
-    end
-
-    # Print specified line on the same string
-    # @param [String] log_string
-    def print_in_same_line(log_string)
-      print log_string + "\r"
-    end
-
-    # Print long line with spaces on same line to clear prev message
-    def print_empty_line
-      print_in_same_line("                                                                       ")
-    end
-
-    # Fetch event for all issues and add them to events
-    # @param [Array] issues
-    # @return [Void]
-    def fetch_events_async(issues)
-      i = 0
-      threads = []
-      issues.each_slice(MAX_SIMULTANEOUS_REQUESTS) do |issues_slice|
-        issues_slice.each do |issue|
-          threads << Thread.new do
-            begin
-              response = @github.issues.events.list user: @options[:user],
-                                                    repo: @options[:project],
-                                                    issue_number: issue["number"]
-              issue['events'] = []
-              response.each_page do |page|
-                issue['events'].concat(page)
-              end
-            rescue Github::Error::Forbidden => e
-              Helper.log.warn e.error_messages.map { |m| m[:message] }.join(", ")
-              Helper.log.warn GH_RATE_LIMIT_EXCEEDED_MSG
-            end
-            print_in_same_line("Fetching events for issues and PR: #{i + 1}/#{issues.count}")
-            i += 1
-          end
-        end
-        threads.each(&:join)
-        threads = []
-      end
-
-      # to clear line from prev print
-      print_empty_line
-
-      Helper.log.info "Fetching events for issues and PR: #{i}"
-    end
-
-    # Fetch tag time from repo
-    #
-    # @param [Hash] tag
-    # @return [Time] time of specified tag
-    def fetch_date_of_tag(tag)
-      begin
-        commit_data = @github.git_data.commits.get @options[:user],
-                                                   @options[:project],
-                                                   tag["commit"]["sha"]
-      rescue Github::Error::Forbidden => e
-        Helper.log.warn e.error_messages.map { |m| m[:message] }.join(", ")
-        Helper.log.warn GH_RATE_LIMIT_EXCEEDED_MSG
-      end
-      time_string = commit_data["committer"]["date"]
-      Time.parse(time_string)
-    end
-
-    # Fetch commit for specified event
-    # @return [Hash]
-    def fetch_commit(event)
-      @github.git_data.commits.get @options[:user], @options[:project], event['commit_id']
-    end
-  end
-end
diff --git a/lib/github_changelog_generator/generator/generator.rb b/lib/github_changelog_generator/generator/generator.rb
index 49a3a5b..8f25617 100644
--- a/lib/github_changelog_generator/generator/generator.rb
+++ b/lib/github_changelog_generator/generator/generator.rb
@@ -1,5 +1,4 @@
 # frozen_string_literal: true
-require_relative "../fetcher"
 require_relative "../octo_fetcher"
 require_relative "generator_generation"
 require_relative "generator_fetcher"
@@ -107,13 +106,13 @@ module GitHubChangelogGenerator
 
       issues.each do |dict|
         added = false
-        dict['labels'].each do |label|
-          if @options[:bug_labels].include? label['name']
+        dict["labels"].each do |label|
+          if @options[:bug_labels].include? label["name"]
             bugs_a.push dict
             added = true
             next
           end
-          if @options[:enhancement_labels].include? label['name']
+          if @options[:enhancement_labels].include? label["name"]
             enhancement_a.push dict
             added = true
             next
@@ -124,13 +123,13 @@ module GitHubChangelogGenerator
 
       added_pull_requests = []
       pull_requests.each do |pr|
-        pr['labels'].each do |label|
-          if @options[:bug_labels].include? label['name']
+        pr["labels"].each do |label|
+          if @options[:bug_labels].include? label["name"]
             bugs_a.push pr
             added_pull_requests.push pr
             next
           end
-          if @options[:enhancement_labels].include? label['name']
+          if @options[:enhancement_labels].include? label["name"]
             enhancement_a.push pr
             added_pull_requests.push pr
             next
diff --git a/lib/github_changelog_generator/generator/generator_fetcher.rb b/lib/github_changelog_generator/generator/generator_fetcher.rb
index bf3dc3a..51d6859 100644
--- a/lib/github_changelog_generator/generator/generator_fetcher.rb
+++ b/lib/github_changelog_generator/generator/generator_fetcher.rb
@@ -50,12 +50,12 @@ module GitHubChangelogGenerator
     # Fill :actual_date parameter of specified issue by closed date of the commit, if it was closed by commit.
     # @param [Hash] issue
     def find_closed_date_by_commit(issue)
-      unless issue['events'].nil?
+      unless issue["events"].nil?
         # if it's PR -> then find "merged event", in case of usual issue -> fond closed date
-        compare_string = issue['merged_at'].nil? ? "closed" : "merged"
+        compare_string = issue["merged_at"].nil? ? "closed" : "merged"
         # reverse! - to find latest closed event. (event goes in date order)
-        issue['events'].reverse!.each do |event|
-          if event['event'].eql? compare_string
+        issue["events"].reverse!.each do |event|
+          if event["event"].eql? compare_string
             set_date_from_event(event, issue)
             break
           end
@@ -69,16 +69,17 @@ module GitHubChangelogGenerator
     # @param [Hash] event
     # @param [Hash] issue
     def set_date_from_event(event, issue)
-      if event['commit_id'].nil?
-        issue['actual_date'] = issue['closed_at']
+      if event["commit_id"].nil?
+        issue["actual_date"] = issue["closed_at"]
       else
         begin
           commit = @fetcher.fetch_commit(event)
-          issue['actual_date'] = commit['commit']['author']['date']
+          issue["actual_date"] = commit["commit"]["author"]["date"]
+          
           # issue['actual_date'] = commit['author']['date']
         rescue
           puts "Warning: Can't fetch commit #{event['commit_id']}. It is probably referenced from another repo."
-          issue['actual_date'] = issue['closed_at']
+          issue["actual_date"] = issue["closed_at"]
         end
       end
     end
diff --git a/lib/github_changelog_generator/generator/generator_generation.rb b/lib/github_changelog_generator/generator/generator_generation.rb
index a139a55..5e78e45 100644
--- a/lib/github_changelog_generator/generator/generator_generation.rb
+++ b/lib/github_changelog_generator/generator/generator_generation.rb
@@ -119,9 +119,8 @@ module GitHubChangelogGenerator
     #
     # @return [Array] filtered issues and pull requests
     def filter_issues_for_tags(newer_tag, older_tag)
-
-      filtered_pull_requests = delete_by_time(@pull_requests, 'actual_date', older_tag, newer_tag)
-      filtered_issues        = delete_by_time(@issues, 'actual_date', older_tag, newer_tag)
+      filtered_pull_requests = delete_by_time(@pull_requests, "actual_date", older_tag, newer_tag)
+      filtered_issues        = delete_by_time(@issues, "actual_date", older_tag, newer_tag)
 
       newer_tag_name = newer_tag.nil? ? nil : newer_tag["name"]
 
@@ -167,7 +166,7 @@ module GitHubChangelogGenerator
     # @param [Hash] issue Fetched issue from GitHub
     # @return [String] Markdown-formatted single issue
     def get_string_for_issue(issue)
-      encapsulated_title = encapsulate_string issue['title']
+      encapsulated_title = encapsulate_string issue["title"]
 
       title_with_number = "#{encapsulated_title} [\\##{issue['number']}](#{issue['html_url']})"
       issue_line_with_user(title_with_number, issue)
@@ -178,13 +177,13 @@ module GitHubChangelogGenerator
     def issue_line_with_user(line, issue)
       return line if !@options[:author] || issue.pull_request.nil?
 
-      user = issue['user']
+      user = issue["user"]
       return "#{line} ({Null user})" unless user
 
       if @options[:usernames_as_github_logins]
-        "#{line} (@#{user['login']})"
+        "#{line} (@#{user["login"]})"
       else
-        "#{line} ([#{user['login']}](#{user['html_url']}))"
+        "#{line} ([#{user["login"]}](#{user["html_url"]}))"
       end
     end
   end
diff --git a/lib/github_changelog_generator/generator/generator_processor.rb b/lib/github_changelog_generator/generator/generator_processor.rb
index 61c4a4f..e863f82 100644
--- a/lib/github_changelog_generator/generator/generator_processor.rb
+++ b/lib/github_changelog_generator/generator/generator_processor.rb
@@ -8,7 +8,7 @@ module GitHubChangelogGenerator
       return issues if !@options[:exclude_labels] || @options[:exclude_labels].empty?
 
       issues.reject do |issue|
-        labels = issue['labels'].map{|l| l['name'] }
+        labels = issue["labels"].map { |l| l["name"] }
         (labels & @options[:exclude_labels]).any?
       end
     end
@@ -32,18 +32,18 @@ module GitHubChangelogGenerator
     # @return [Array] issues with milestone #tag_name
     def find_issues_to_add(all_issues, tag_name)
       all_issues.select do |issue|
-        if issue['milestone'].nil?
+        if issue["milestone"].nil?
           false
         else
           # check, that this milestone in tag list:
           milestone_is_tag = @filtered_tags.find do |tag|
-            tag['name'] == issue['milestone']['title']
+            tag["name"] == issue["milestone"]["title"]
           end
 
           if milestone_is_tag.nil?
             false
           else
-            issue['milestone']['title'] == tag_name
+            issue["milestone"]["title"] == tag_name
           end
         end
       end
@@ -53,11 +53,11 @@ module GitHubChangelogGenerator
     def remove_issues_in_milestones(filtered_issues)
       filtered_issues.select! do |issue|
         # leave issues without milestones
-        if issue['milestone'].nil?
+        if issue["milestone"].nil?
           true
         else
           # check, that this milestone in tag list:
-          @filtered_tags.find { |tag| tag['name'] == issue['milestone']['title'] }.nil?
+          @filtered_tags.find { |tag| tag["name"] == issue["milestone"]["title"] }.nil?
         end
       end
     end
@@ -68,7 +68,7 @@ module GitHubChangelogGenerator
     # @param [String] older_tag all issues before this tag date will be excluded. May be nil, if it's first tag
     # @param [String] newer_tag all issue after this tag will be excluded. May be nil for unreleased section
     # @return [Array] filtered issues
-    def delete_by_time(issues, hash_key = 'actual_date', older_tag = nil, newer_tag = nil)
+    def delete_by_time(issues, hash_key = "actual_date", older_tag = nil, newer_tag = nil)
       # in case if not tags specified - return unchanged array
       return issues if older_tag.nil? && newer_tag.nil?
 
@@ -123,7 +123,7 @@ module GitHubChangelogGenerator
     def filter_wo_labels(issues)
       if @options[:add_issues_wo_labels]
         issues_wo_labels = issues.select do |issue|
-          !issue['labels'].map{|l| l['name'] }.any?
+          !issue["labels"].map { |l| l["name"] }.any?
         end
         return issues_wo_labels
       end
@@ -135,7 +135,7 @@ module GitHubChangelogGenerator
         issues
       else
         issues.select do |issue|
-          labels = issue['labels'].map { |l| l['name'] } & @options[:include_labels]
+          labels = issue["labels"].map { |l| l["name"] } & @options[:include_labels]
           labels.any?
         end
       end
@@ -179,16 +179,16 @@ module GitHubChangelogGenerator
 
       pull_requests.each do |pr|
         fetched_pr = closed_pull_requests.find do |fpr|
-          fpr['number'] == pr['number']
+          fpr["number"] == pr["number"]
         end
         if fetched_pr
-          pr['merged_at'] = fetched_pr['merged_at']
+          pr["merged_at"] = fetched_pr["merged_at"]
           closed_pull_requests.delete(fetched_pr)
         end
       end
 
       pull_requests.select! do |pr|
-        !pr['merged_at'].nil?
+        !pr["merged_at"].nil?
       end
 
       pull_requests
diff --git a/lib/github_changelog_generator/generator/generator_tags.rb b/lib/github_changelog_generator/generator/generator_tags.rb
index c8dfc1c..5b5d963 100644
--- a/lib/github_changelog_generator/generator/generator_tags.rb
+++ b/lib/github_changelog_generator/generator/generator_tags.rb
@@ -80,8 +80,8 @@ module GitHubChangelogGenerator
       filtered_tags = all_tags
       tag = detect_since_tag
       if tag
-        if all_tags.map(&:name).include? tag
-          idx = all_tags.index { |t| t.name == tag }
+        if all_tags.map { |t| t["name"] }.include? tag
+          idx = all_tags.index { |t| t["name"] == tag }
           filtered_tags = if idx > 0
                             all_tags[0..idx - 1]
                           else
@@ -100,8 +100,8 @@ module GitHubChangelogGenerator
       filtered_tags = all_tags
       tag = @options[:due_tag]
       if tag
-        if all_tags.any? && all_tags.map(&:name).include?(tag)
-          idx = all_tags.index { |t| t.name == tag }
+        if all_tags.any? && all_tags.map { |t| t["name"] }.include?(tag)
+          idx = all_tags.index { |t| t["name"] == tag }
           last_index = all_tags.count - 1
           filtered_tags = if idx > 0 && idx < last_index
                             all_tags[idx + 1..last_index]
@@ -121,11 +121,11 @@ module GitHubChangelogGenerator
       filtered_tags = all_tags
       if @options[:between_tags]
         @options[:between_tags].each do |tag|
-          unless all_tags.map(&:name).include? tag
+          unless all_tags.map { |t| t["name"] }.include? tag
             Helper.log.warn "Warning: can't find tag #{tag}, specified with --between-tags option."
           end
         end
-        filtered_tags = all_tags.select { |tag| @options[:between_tags].include? tag.name }
+        filtered_tags = all_tags.select { |tag| @options[:between_tags].include? tag["name"] }
       end
       filtered_tags
     end
@@ -158,18 +158,18 @@ module GitHubChangelogGenerator
 
     def filter_tags_with_regex(all_tags, regex)
       warn_if_nonmatching_regex(all_tags)
-      all_tags.reject { |tag| regex =~ tag.name }
+      all_tags.reject { |tag| regex =~ tag["name"] }
     end
 
     def filter_exact_tags(all_tags)
       @options[:exclude_tags].each do |tag|
         warn_if_tag_not_found(all_tags, tag)
       end
-      all_tags.reject { |tag| @options[:exclude_tags].include? tag.name }
+      all_tags.reject { |tag| @options[:exclude_tags].include? tag["name"] }
     end
 
     def warn_if_nonmatching_regex(all_tags)
-      unless all_tags.map(&:name).any? { |t| @options[:exclude_tags] =~ t }
+      unless all_tags.map { |t| t["name"] }.any? { |t| @options[:exclude_tags] =~ t }
         Helper.log.warn "Warning: unable to reject any tag, using regex "\
                         "#{@options[:exclude_tags].inspect} in --exclude-tags "\
                         "option."
@@ -177,7 +177,7 @@ module GitHubChangelogGenerator
     end
 
     def warn_if_tag_not_found(all_tags, tag)
-      unless all_tags.map(&:name).include? tag
+      unless all_tags.map { |t| t["name"] }.include? tag
         Helper.log.warn "Warning: can't find tag #{tag}, specified with --exclude-tags option."
       end
     end
diff --git a/lib/github_changelog_generator/hash.rb b/lib/github_changelog_generator/hash.rb
index e66e7ad..3a7349e 100644
--- a/lib/github_changelog_generator/hash.rb
+++ b/lib/github_changelog_generator/hash.rb
@@ -2,14 +2,14 @@ class Hash
   def stringify_keys_deep!
     new_hash = {}
     keys.each do |k|
-      ks    = k.respond_to?(:to_s) ? k.to_s : k
-      if values_at(k).first.kind_of? Hash or values_at(k).first.kind_of? Array
-        new_hash[ks] = values_at(k).first.send(:stringify_keys_deep!)
-      else
-        new_hash[ks] = values_at(k).first
-      end
+      ks = k.respond_to?(:to_s) ? k.to_s : k
+      new_hash[ks] = if values_at(k).first.is_a?(Hash) || values_at(k).first.is_a?(Array)
+                       values_at(k).first.send(:stringify_keys_deep!)
+                     else
+                       values_at(k).first
+                     end
     end
 
     new_hash
   end
-end
\ No newline at end of file
+end
diff --git a/lib/github_changelog_generator/octo_fetcher.rb b/lib/github_changelog_generator/octo_fetcher.rb
index 4549c59..37f848c 100644
--- a/lib/github_changelog_generator/octo_fetcher.rb
+++ b/lib/github_changelog_generator/octo_fetcher.rb
@@ -28,7 +28,7 @@ module GitHubChangelogGenerator
 
       @github_token = fetch_github_token
 
-      @request_options               = { :per_page => PER_PAGE_NUMBER }
+      @request_options               = { per_page: PER_PAGE_NUMBER }
       @github_options                = {}
       @github_options[:access_token] = @github_token unless @github_token.nil?
       @github_options[:api_endpoint] = @options[:github_endpoint] unless @options[:github_endpoint].nil?
@@ -63,7 +63,6 @@ module GitHubChangelogGenerator
       check_github_response { github_fetch_tags }
     end
 
-
     # Returns the number of pages for a API call
     #
     # @return [Integer] number of pages for this API call in total
@@ -75,23 +74,22 @@ module GitHubChangelogGenerator
 
       last_response = client.last_response
 
-      if last_pg = last_response.rels[:last]
-        parse_url_for_vars(last_pg.href)['page'].to_i
+      if (last_pg = last_response.rels[:last])
+        parse_url_for_vars(last_pg.href)["page"].to_i
       else
         1
       end
     end
 
-
     # Fill input array with tags
     #
     # @return [Array <Hash>] array of tags in repo
     def github_fetch_tags
       tags        = []
       page_i      = 0
-      count_pages = calculate_pages(@client, 'tags', {})
+      count_pages = calculate_pages(@client, "tags", {})
 
-      iterate_pages(@client, 'tags', {}) do |new_tags|
+      iterate_pages(@client, "tags", {}) do |new_tags|
         page_i += PER_PAGE_NUMBER
         print_in_same_line("Fetching tags... #{page_i}/#{count_pages * PER_PAGE_NUMBER}")
         tags.concat(new_tags)
@@ -105,7 +103,7 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
         Helper.log.info "Found #{tags.count} tags"
       end
       # tags are a Sawyer::Resource. Convert to hash
-      tags = tags.map{|h| h.to_hash.stringify_keys_deep! }
+      tags = tags.map { |h| h.to_hash.stringify_keys_deep! }
       tags
     end
 
@@ -117,16 +115,16 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
       print "Fetching closed issues...\r" if @options[:verbose]
       issues = []
       options = {
-        :state  => "closed",
-        :filter => "all",
-        :labels => nil,
+        state: "closed",
+        filter: "all",
+        labels: nil
       }
       options[:since] = @since unless @since.nil?
 
       page_i      = 0
-      count_pages = calculate_pages(@client, 'issues', options)
+      count_pages = calculate_pages(@client, "issues", options)
 
-      iterate_pages(@client, 'issues', options) do |new_issues|
+      iterate_pages(@client, "issues", options) do |new_issues|
         page_i += PER_PAGE_NUMBER
         print_in_same_line("Fetching issues... #{page_i}/#{count_pages * PER_PAGE_NUMBER}")
         issues.concat(new_issues)
@@ -135,11 +133,11 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
       print_empty_line
       Helper.log.info "Received issues: #{issues.count}"
 
-      issues = issues.map{|h| h.to_hash.stringify_keys_deep! }
+      issues = issues.map { |h| h.to_hash.stringify_keys_deep! }
 
       # separate arrays of issues and pull requests:
       issues.partition do |x|
-        x['pull_request'].nil?
+        x["pull_request"].nil?
       end
     end
 
@@ -148,17 +146,17 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
     # @return [Array <Hash>] all pull requests
     def fetch_closed_pull_requests
       pull_requests = []
-      options = { :state => 'closed' }
+      options = { state: "closed" }
 
-      if !@options[:release_branch].nil?
+      unless @options[:release_branch].nil?
         options[:base] = @options[:release_branch]
       end
 
       page_i      = 0
-      count_pages = calculate_pages(@client, 'pull_requests', options)
+      count_pages = calculate_pages(@client, "pull_requests", options)
 
-      iterate_pages(@client, 'pull_requests', options) do |new_pr|
-        page_i     += PER_PAGE_NUMBER
+      iterate_pages(@client, "pull_requests", options) do |new_pr|
+        page_i += PER_PAGE_NUMBER
         log_string = "Fetching merged dates... #{page_i}/#{count_pages * PER_PAGE_NUMBER}"
         print_in_same_line(log_string)
         pull_requests.concat(new_pr)
@@ -166,7 +164,7 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
       print_empty_line
 
       Helper.log.info "Pull Request count: #{pull_requests.count}"
-      pull_requests = pull_requests.map{|h| h.to_hash.stringify_keys_deep! }
+      pull_requests = pull_requests.map { |h| h.to_hash.stringify_keys_deep! }
       pull_requests
     end
 
@@ -181,11 +179,11 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
       issues.each_slice(MAX_THREAD_NUMBER) do |issues_slice|
         issues_slice.each do |issue|
           threads << Thread.new do
-            issue['events'] = []
-            iterate_pages(@client, 'issue_events', issue['number'], {}) do |new_event|
-              issue['events'].concat(new_event)
+            issue["events"] = []
+            iterate_pages(@client, "issue_events", issue["number"], {}) do |new_event|
+              issue["events"].concat(new_event)
             end
-            issue['events'] = issue['events'].map{|h| h.to_hash.stringify_keys_deep! }
+            issue["events"] = issue["events"].map { |h| h.to_hash.stringify_keys_deep! }
             print_in_same_line("Fetching events for issues and PR: #{i + 1}/#{issues.count}")
             i += 1
           end
@@ -205,10 +203,10 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
     # @param [Hash] tag
     # @return [Time] time of specified tag
     def fetch_date_of_tag(tag)
-      commit_data = check_github_response { @client.commit(user_project, tag['commit']['sha']) }
+      commit_data = check_github_response { @client.commit(user_project, tag["commit"]["sha"]) }
       commit_data = commit_data.to_hash.stringify_keys_deep!
 
-      commit_data['commit']['committer']['date']
+      commit_data["commit"]["committer"]["date"]
     end
 
     # Fetch commit for specified event
@@ -216,8 +214,9 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
     # @return [Hash]
     def fetch_commit(event)
       check_github_response do
-        commit = @client.commit(user_project, event['commit_id'])
+        commit = @client.commit(user_project, event["commit_id"])
         commit = commit.to_hash.stringify_keys_deep!
+        commit
       end
     end
 
@@ -229,7 +228,7 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
     # @param [Octokit::Client] client
     # @param [String] method (eg. 'tags')
     # @return [Integer] total number of pages
-    def iterate_pages(client, method, *args, &block)
+    def iterate_pages(client, method, *args)
       if args.size == 1 && args.first.is_a?(Hash)
         request_options = args.delete_at(0)
       elsif args.size > 1 && args.last.is_a?(Hash)
@@ -247,8 +246,8 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
 
       yield last_response.data
 
-      while !(next_one = last_response.rels[:next]).nil?
-        pages +=1
+      until (next_one = last_response.rels[:next]).nil?
+        pages += 1
 
         last_response = check_github_response { next_one.get }
         yield last_response.data
@@ -307,12 +306,11 @@ Make sure, that you push tags to remote repo via 'git push --tags'".yellow
     # @param [String] uri eg. https://api.github.com/repositories/43914960/tags?page=37&foo=1
     # @return [Hash] of all GET variables. eg. { 'page' => 37, 'foo' => 1 }
     def parse_url_for_vars(uri)
-      URI(uri).query.split("&").inject({}) do |params, get_var|
-        k,v = get_var.split("=")
+      URI(uri).query.split("&").each_with_object({}) do |params, get_var|
+        k, v = get_var.split("=")
         params[k] = v
         params
       end
     end
-
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 004b65c..a0cacdd 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -38,16 +38,15 @@ end
 require "github_changelog_generator"
 require "github_changelog_generator/task"
 
-
 VCR.configure do |c|
   c.allow_http_connections_when_no_cassette = true
-  c.cassette_library_dir = 'spec/vcr'
+  c.cassette_library_dir = "spec/vcr"
   c.ignore_localhost = true
   c.default_cassette_options = {
-    :record => :new_episodes,
-    :serialize_with             => :json,
-    :preserve_exact_body_bytes  => true,
-    :decode_compressed_response => true,
+    record: :new_episodes,
+    serialize_with: :json,
+    preserve_exact_body_bytes: true,
+    decode_compressed_response: true
   }
 
   c.hook_into :webmock, :faraday
@@ -74,6 +73,4 @@ RSpec.configure do |config|
   Kernel.srand config.seed
 
   config.extend VCR::RSpec::Macros
-
 end
-
diff --git a/spec/unit/fetcher_spec.rb b/spec/unit/fetcher_spec.rb
deleted file mode 100644
index 5c5e970..0000000
--- a/spec/unit/fetcher_spec.rb
+++ /dev/null
@@ -1,231 +0,0 @@
-# frozen_string_literal: true
-VALID_TOKEN = "0123456789abcdef"
-INVALID_TOKEN = "0000000000000000"
-
-describe GitHubChangelogGenerator::Fetcher do
-  let(:options) do
-    {
-      :user    => "skywinder",
-      :project => "changelog_test",
-    }
-  end
-
-  let(:fetcher) { GitHubChangelogGenerator::Fetcher.new(options) }
-
-
-  describe "#fetch_github_token" do
-    token = GitHubChangelogGenerator::Fetcher::CHANGELOG_GITHUB_TOKEN
-    context "when token in ENV exist" do
-      before { stub_const("ENV", ENV.to_hash.merge(token => VALID_TOKEN)) }
-      subject { fetcher.fetch_github_token }
-      it { is_expected.to eq(VALID_TOKEN) }
-    end
-
-    context "when token in ENV is nil" do
-      before { stub_const("ENV", ENV.to_hash.merge(token => nil)) }
-      subject { fetcher.fetch_github_token }
-      it { is_expected.to be_nil }
-    end
-
-    context "when token in options and ENV is nil" do
-      let(:options) { { :token => VALID_TOKEN } }
-
-      before do
-        stub_const("ENV", ENV.to_hash.merge(token => nil))
-      end
-
-      subject { fetcher.fetch_github_token }
-      it { is_expected.to eq(VALID_TOKEN) }
-    end
-
-    context "when token in options and ENV specified" do
-      let(:options) { { :token => VALID_TOKEN } }
-
-      before do
-        stub_const("ENV", ENV.to_hash.merge(token => "no_matter_what"))
-      end
-
-      subject { fetcher.fetch_github_token }
-      it { is_expected.to eq(VALID_TOKEN) }
-    end
-  end
-
-  describe "#get_all_tags" do
-    context "when github_fetch_tags returns tags" do
-      it "returns tags" do
-        mock_tags = ['tag']
-        allow(fetcher).to receive(:github_fetch_tags).and_return(mock_tags)
-        expect(fetcher.get_all_tags).to eq(mock_tags)
-      end
-    end
-  end
-
-  describe "#github_fetch_tags" do
-    context "when wrong token provided" do
-      use_vcr_cassette
-
-      let(:options) do
-        {
-          :user    => "skywinder",
-          :project => "changelog_test",
-          :token   => INVALID_TOKEN
-        }
-      end
-
-      it "should raise Unauthorized error" do
-        expect { fetcher.github_fetch_tags }.to raise_error Github::Error::Unauthorized
-      end
-    end
-
-    context "when API call is valid" do
-      use_vcr_cassette
-
-      it "should return tags" do
-        expected_tags = [{"name"=>"v0.0.3", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3", "commit"=>{"sha"=>"a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90"}}, {"name"=>"v0.0.2", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.2", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.2", "commit"=>{"sha"=>"9b35bb13dcd15b68e7bcbf10cde5eb937a54f710", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/9b35bb13dcd15b68e7bcbf10cde5eb937a54f710"}}, {"name"=>"v0.0.1", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.1", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.1", "commit"=>{"sha"=>"4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d"}}, {"name"=>"0.0.4", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/0.0.4", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/0.0.4", "commit"=>{"sha"=>"ece0c3ab7142b21064b885061c55ede00ef6ce94", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/ece0c3ab7142b21064b885061c55ede00ef6ce94"}}]
-
-        expect(fetcher.github_fetch_tags).to eq(expected_tags)
-      end
-    end
-  end
-
-
-  describe "#fetch_closed_issues_and_pr" do
-    context "when API call is valid" do
-      use_vcr_cassette
-
-
-      it "returns issues" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expect(issues.size).to eq(7)
-        expect(pull_requests.size).to eq(14)
-      end
-
-      it "returns issue with proper key/values" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected_issue = {"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/events", "html_url"=>"https://github.com/skywinder/changelog_test/issues/14", "id"=>95419412, "number"=>14, "title"=>"Issue closed from commit from PR", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2015-07-16T12:06:08Z", "updated_at"=>"2015-07-16T12:21:42Z", "closed_at"=>"2015-07-16T12:21:42Z", "body"=>""}
-        expect(issues.first).to eq(expected_issue)
-      end
-
-      it "returns pull request with proper key/values" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected_pr = {"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/events", "html_url"=>"https://github.com/skywinder/changelog_test/pull/21", "id"=>124925759, "number"=>21, "title"=>"Merged br (should appear in change log with  #20)", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2016-01-05T09:24:08Z", "updated_at"=>"2016-01-05T09:26:53Z", "closed_at"=>"2016-01-05T09:24:27Z", "pull_request"=>{"url"=>"https://api.github.com/repos/skywinder/changelog_test/pulls/21", "html_url"=>"https://github.com/skywinder/changelog_test/pull/21", "diff_url"=>"https://github.com/skywinder/changelog_test/pull/21.diff", "patch_url"=>"https://github.com/skywinder/changelog_test/pull/21.patch"}, "body"=>"to test https://github.com/skywinder/github-changelog-generator/pull/305\r\nshould appear in change log with #20"}
-        expect(pull_requests.first).to eq(expected_pr)
-      end
-
-
-      it "returns issues with labels" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected = [[], [], ["Bug"], [], ["enhancement"], ["some label"], []]
-        expect(issues.map{|i| i.labels.map(&:name) }).to eq(expected)
-      end
-
-      it "returns pull_requests with labels" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected = [[], [], [], [], [], ["enhancement"], [], [], ["invalid"], [], [], [], [], ["invalid"]]
-        expect(pull_requests.map{|i| i.labels.map(&:name) }).to eq(expected)
-      end
-    end
-  end
-
-  describe "#fetch_closed_pull_requests" do
-    context "when API call is valid" do
-      use_vcr_cassette
-
-      it "returns pull requests" do
-        pull_requests = fetcher.fetch_closed_pull_requests
-        expect(pull_requests.size).to eq(14)
-      end
-
-      it "returns correct pull request keys" do
-        pull_requests = fetcher.fetch_closed_pull_requests
-
-        pr = pull_requests.first
-        expect(pr.keys).to eq(["url", "id", "html_url", "diff_url", "patch_url", "issue_url", "number", "state", "locked", "title", "user", "body", "created_at", "updated_at", "closed_at", "merged_at", "merge_commit_sha", "assignee", "milestone", "commits_url", "review_comments_url", "review_comment_url", "comments_url", "statuses_url", "head", "base", "_links"])
-      end
-    end
-  end
-
-
-  describe "#fetch_events_async" do
-    context "when API call is valid" do
-      use_vcr_cassette
-
-      it "populates issues" do
-        issues = [{"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/events", "html_url"=>"https://github.com/skywinder/changelog_test/issues/14", "id"=>95419412, "number"=>14, "title"=>"Issue closed from commit from PR", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2015-07-16T12:06:08Z", "updated_at"=>"2015-07-16T12:21:42Z", "closed_at"=>"2015-07-16T12:21:42Z", "body"=>""}]
-
-        # Check that they are blank to begin with
-        expect(issues.first['events']).to be_nil
-
-        fetcher.fetch_events_async(issues)
-        issue_events = issues.first['events']
-
-        expected_events = [{"id"=>357462189, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"referenced", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:16Z"}, {"id"=>357462542, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462542", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"closed", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:42Z"}]
-        expect(issue_events).to eq(expected_events)
-      end
-
-    end
-  end
-
-
-  describe "#fetch_date_of_tag" do
-    context "when API call is valid" do
-      use_vcr_cassette
-
-      it "returns date" do
-        tag = {"name"=>"v0.0.3", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3", "commit"=>{"sha"=>"a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90"}}
-        dt = fetcher.fetch_date_of_tag(tag)
-        expect(dt).to eq(Time.parse("2015-03-04 19:01:48 UTC"))
-      end
-
-    end
-  end
-
-
-  describe "#fetch_commit" do
-    context "when API call is valid" do
-      use_vcr_cassette
-
-      it "returns commit" do
-        event = {"id"=>357462189, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"referenced", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:16Z"}
-        commit = fetcher.fetch_commit(event)
-
-        expectations = [
-          ["sha", "decfe840d1a1b86e0c28700de5362d3365a29555"],
-          ["url",
-           "https://api.github.com/repos/skywinder/changelog_test/git/commits/decfe840d1a1b86e0c28700de5362d3365a29555"],
-          ["html_url",
-           "https://github.com/skywinder/changelog_test/commit/decfe840d1a1b86e0c28700de5362d3365a29555"],
-          ["author",
-           {"name"=>"Petr Korolev",
-            "email"=>"sky4winder@gmail.com",
-            "date"=>"2015-07-16T12:11:01Z"}],
-          ["committer",
-           {"name"=>"Petr Korolev",
-            "email"=>"sky4winder@gmail.com",
-            "date"=>"2015-07-16T12:11:01Z"}],
-          ["tree",
-           {"sha"=>"0699c15258a7c2b2e157051fe19851d4f705cac8",
-            "url"=>
-              "https://api.github.com/repos/skywinder/changelog_test/git/trees/0699c15258a7c2b2e157051fe19851d4f705cac8"}],
-          ["message", "fix #14"],
-          ["parents",
-           [{"sha"=>"7ec095e5e3caceacedabf44d0b9b10da17c92e51",
-             "url"=>
-               "https://api.github.com/repos/skywinder/changelog_test/git/commits/7ec095e5e3caceacedabf44d0b9b10da17c92e51",
-             "html_url"=>
-               "https://github.com/skywinder/changelog_test/commit/7ec095e5e3caceacedabf44d0b9b10da17c92e51"}]
-          ]
-        ]
-
-        expectations.each do |property, val|
-          expect(commit.send(property)).to eq(val)
-        end
-
-      end
-
-    end
-  end
-
-
-
-end
diff --git a/spec/unit/generator/generator_processor_spec.rb b/spec/unit/generator/generator_processor_spec.rb
index f814569..b6f26ab 100644
--- a/spec/unit/generator/generator_processor_spec.rb
+++ b/spec/unit/generator/generator_processor_spec.rb
@@ -2,10 +2,10 @@
 module GitHubChangelogGenerator
   describe Generator do
     context "#exclude_issues_by_labels" do
-      let(:label) { { 'name' => "BAD" } }
-      let(:issue) { { 'labels' => [label] } }
-      let(:good_label) { { 'name' => "GOOD" } }
-      let(:good_issue) { { 'labels' => [good_label] } }
+      let(:label) { { "name" => "BAD" } }
+      let(:issue) { { "labels" => [label] } }
+      let(:good_label) { { "name" => "GOOD" } }
+      let(:good_issue) { { "labels" => [good_label] } }
       let(:issues) { [issue, good_issue] }
       subject(:generator) { described_class.new(exclude_labels: %w(BAD BOO)) }
 
diff --git a/spec/unit/generator/generator_tags_spec.rb b/spec/unit/generator/generator_tags_spec.rb
index 86cdf70..0a1a083 100644
--- a/spec/unit/generator/generator_tags_spec.rb
+++ b/spec/unit/generator/generator_tags_spec.rb
@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 describe GitHubChangelogGenerator::Generator do
-  def tag_mash_with_name(tag)
-    Hashie::Mash.new.tap { |mash_tag| mash_tag.name = tag }
+  def tag_with_name(tag)
+    {}.tap { |mash_tag| mash_tag["name"] = tag }
   end
 
-  def tags_mash_from_strings(tags_strings)
+  def tags_from_strings(tags_strings)
     tags_strings.map do |tag|
-      tag_mash_with_name(tag)
+      tag_with_name(tag)
     end
   end
 
@@ -17,20 +17,20 @@ describe GitHubChangelogGenerator::Generator do
       end
 
       subject do
-        @generator.get_filtered_tags(tags_mash_from_strings(%w(1 2 3)))
+        @generator.get_filtered_tags(tags_from_strings(%w(1 2 3)))
       end
       it { is_expected.to be_a(Array) }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
     end
     context "when between_tags same as input array" do
       before do
         @generator = GitHubChangelogGenerator::Generator.new(between_tags: %w(1 2 3))
       end
       subject do
-        @generator.get_filtered_tags(tags_mash_from_strings(%w(1 2 3)))
+        @generator.get_filtered_tags(tags_from_strings(%w(1 2 3)))
       end
       it { is_expected.to be_a(Array) }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
     end
 
     context "when between_tags filled with correct values" do
@@ -38,10 +38,10 @@ describe GitHubChangelogGenerator::Generator do
         @generator = GitHubChangelogGenerator::Generator.new(between_tags: %w(1 2))
       end
       subject do
-        @generator.get_filtered_tags(tags_mash_from_strings(%w(1 2 3)))
+        @generator.get_filtered_tags(tags_from_strings(%w(1 2 3)))
       end
       it { is_expected.to be_a(Array) }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2))) }
     end
 
     context "when between_tags filled with invalid values" do
@@ -50,133 +50,133 @@ describe GitHubChangelogGenerator::Generator do
       end
 
       subject do
-        @generator.get_filtered_tags(tags_mash_from_strings(%w(1 2 3)))
+        @generator.get_filtered_tags(tags_from_strings(%w(1 2 3)))
       end
       it { is_expected.to be_a(Array) }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1))) }
     end
   end
 
   describe "#get_filtered_tags" do
     subject do
-      generator.get_filtered_tags(tags_mash_from_strings(%w(1 2 3 4 5)))
+      generator.get_filtered_tags(tags_from_strings(%w(1 2 3 4 5)))
     end
 
     context "with excluded and between tags" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(between_tags: %w(1 2 3), exclude_tags: %w(2)) }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 3))) }
     end
   end
 
   describe "#filter_excluded_tags" do
-    subject { generator.filter_excluded_tags(tags_mash_from_strings(%w(1 2 3))) }
+    subject { generator.filter_excluded_tags(tags_from_strings(%w(1 2 3))) }
 
     context "with matching string" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags: %w(3)) }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2))) }
     end
 
     context "with non-matching string" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags: %w(invalid tags)) }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
     end
 
     context "with matching regex" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags: /[23]/) }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1))) }
     end
 
     context "with non-matching regex" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags: /[abc]/) }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
     end
   end
 
   describe "#filter_excluded_tags_regex" do
-    subject { generator.filter_excluded_tags(tags_mash_from_strings(%w(1 2 3))) }
+    subject { generator.filter_excluded_tags(tags_from_strings(%w(1 2 3))) }
 
     context "with matching regex" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags_regex: "[23]") }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1))) }
     end
 
     context "with non-matching regex" do
       let(:generator) { GitHubChangelogGenerator::Generator.new(exclude_tags_regex: "[45]") }
       it { is_expected.to be_a Array }
-      it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+      it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
     end
   end
 
   describe "#filter_since_tag" do
     context "with filled array" do
-      subject { generator.filter_since_tag(tags_mash_from_strings(%w(1 2 3))) }
+      subject { generator.filter_since_tag(tags_from_strings(%w(1 2 3))) }
 
       context "with valid since tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "2") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w(1))) }
+        it { is_expected.to match_array(tags_from_strings(%w(1))) }
       end
 
       context "with invalid since tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "Invalid tag") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+        it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
       end
     end
 
     context "with empty array" do
-      subject { generator.filter_since_tag(tags_mash_from_strings(%w())) }
+      subject { generator.filter_since_tag(tags_from_strings(%w())) }
 
       context "with valid since tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "2") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+        it { is_expected.to match_array(tags_from_strings(%w())) }
       end
 
       context "with invalid since tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(since_tag: "Invalid tag") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+        it { is_expected.to match_array(tags_from_strings(%w())) }
       end
     end
   end
 
   describe "#filter_due_tag" do
     context "with filled array" do
-      subject { generator.filter_due_tag(tags_mash_from_strings(%w(1 2 3))) }
+      subject { generator.filter_due_tag(tags_from_strings(%w(1 2 3))) }
 
       context "with valid due tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "2") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w(3))) }
+        it { is_expected.to match_array(tags_from_strings(%w(3))) }
       end
 
       context "with invalid due tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "Invalid tag") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w(1 2 3))) }
+        it { is_expected.to match_array(tags_from_strings(%w(1 2 3))) }
       end
     end
 
     context "with empty array" do
-      subject { generator.filter_due_tag(tags_mash_from_strings(%w())) }
+      subject { generator.filter_due_tag(tags_from_strings(%w())) }
 
       context "with valid due tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "2") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+        it { is_expected.to match_array(tags_from_strings(%w())) }
       end
 
       context "with invalid due tag" do
         let(:generator) { GitHubChangelogGenerator::Generator.new(due_tag: "Invalid tag") }
         it { is_expected.to be_a Array }
-        it { is_expected.to match_array(tags_mash_from_strings(%w())) }
+        it { is_expected.to match_array(tags_from_strings(%w())) }
       end
     end
   end
@@ -191,7 +191,7 @@ describe GitHubChangelogGenerator::Generator do
     end
     context "fetch already filled tag" do
       before { @generator.instance_variable_set :@tag_times_hash, "valid_tag" => current_time }
-      subject { @generator.get_time_of_tag tag_mash_with_name("valid_tag") }
+      subject { @generator.get_time_of_tag tag_with_name("valid_tag") }
       it { is_expected.to be_a_kind_of(Time) }
       it { is_expected.to eq(current_time) }
     end
@@ -202,7 +202,7 @@ describe GitHubChangelogGenerator::Generator do
         @generator.instance_variable_set :@fetcher, mock
       end
       subject do
-        of_tag = @generator.get_time_of_tag(tag_mash_with_name("valid_tag"))
+        of_tag = @generator.get_time_of_tag(tag_with_name("valid_tag"))
         of_tag
       end
       it { is_expected.to be_a_kind_of(Time) }
@@ -229,13 +229,13 @@ describe GitHubChangelogGenerator::Generator do
       @generator.sort_tags_by_date(tags)
     end
     context "sort unsorted tags" do
-      let(:tags) { tags_mash_from_strings %w(valid_tag1 valid_tag2 valid_tag3) }
+      let(:tags) { tags_from_strings %w(valid_tag1 valid_tag2 valid_tag3) }
 
       it { is_expected.to be_a_kind_of(Array) }
       it { is_expected.to match_array(tags.reverse!) }
     end
     context "sort sorted tags" do
-      let(:tags) { tags_mash_from_strings %w(valid_tag3 valid_tag2 valid_tag1) }
+      let(:tags) { tags_from_strings %w(valid_tag3 valid_tag2 valid_tag1) }
 
       it { is_expected.to be_a_kind_of(Array) }
       it { is_expected.to match_array(tags) }
diff --git a/spec/unit/octo_fetcher_spec.rb b/spec/unit/octo_fetcher_spec.rb
index 0460e95..7bbfea7 100644
--- a/spec/unit/octo_fetcher_spec.rb
+++ b/spec/unit/octo_fetcher_spec.rb
@@ -4,14 +4,13 @@ INVALID_TOKEN = "0000000000000000"
 describe GitHubChangelogGenerator::OctoFetcher do
   let(:options) do
     {
-      :user    => "skywinder",
-      :project => "changelog_test",
+      user: "skywinder",
+      project: "changelog_test"
     }
   end
 
   let(:fetcher) { GitHubChangelogGenerator::OctoFetcher.new(options) }
 
-
   describe "#fetch_github_token" do
     token = GitHubChangelogGenerator::OctoFetcher::CHANGELOG_GITHUB_TOKEN
     context "when token in ENV exist" do
@@ -27,7 +26,7 @@ describe GitHubChangelogGenerator::OctoFetcher do
     end
 
     context "when token in options and ENV is nil" do
-      let(:options) { { :token => VALID_TOKEN } }
+      let(:options) { { token: VALID_TOKEN } }
 
       before do
         stub_const("ENV", ENV.to_hash.merge(token => nil))
@@ -38,7 +37,7 @@ describe GitHubChangelogGenerator::OctoFetcher do
     end
 
     context "when token in options and ENV specified" do
-      let(:options) { { :token => VALID_TOKEN } }
+      let(:options) { { token: VALID_TOKEN } }
 
       before do
         stub_const("ENV", ENV.to_hash.merge(token => "no_matter_what"))
@@ -52,7 +51,7 @@ describe GitHubChangelogGenerator::OctoFetcher do
   describe "#get_all_tags" do
     context "when github_fetch_tags returns tags" do
       it "returns tags" do
-        mock_tags = ['tag']
+        mock_tags = ["tag"]
         allow(fetcher).to receive(:github_fetch_tags).and_return(mock_tags)
         expect(fetcher.get_all_tags).to eq(mock_tags)
       end
@@ -65,9 +64,9 @@ describe GitHubChangelogGenerator::OctoFetcher do
 
       let(:options) do
         {
-          :user    => "skywinder",
-          :project => "changelog_test",
-          :token   => INVALID_TOKEN
+          user: "skywinder",
+          project: "changelog_test",
+          token: INVALID_TOKEN
         }
       end
 
@@ -80,7 +79,42 @@ describe GitHubChangelogGenerator::OctoFetcher do
       use_vcr_cassette
 
       it "should return tags" do
-        expected_tags = [{"name"=>"v0.0.3", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3", "commit"=>{"sha"=>"a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90"}}, {"name"=>"v0.0.2", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.2", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.2", "commit"=>{"sha"=>"9b35bb13dcd15b68e7bcbf10cde5eb937a54f710", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/9b35bb13dcd15b68e7bcbf10cde5eb937a54f710"}}, {"name"=>"v0.0.1", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.1", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.1", "commit"=>{"sha"=>"4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d"}}, {"name"=>"0.0.4", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/0.0.4", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/0.0.4", "commit"=>{"sha"=>"ece0c3ab7142b21064b885061c55ede00ef6ce94", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/ece0c3ab7142b21064b885061c55ede00ef6ce94"}}]
+        expected_tags = [{ "name"        => "v0.0.3",
+                           "zipball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3",
+                           "tarball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3",
+                           "commit"      =>
+                             { "sha" => "a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90",
+                               "url" =>
+                                 "https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90" } },
+                         { "name"        => "v0.0.2",
+                           "zipball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.2",
+                           "tarball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.2",
+                           "commit"      =>
+                             { "sha" => "9b35bb13dcd15b68e7bcbf10cde5eb937a54f710",
+                               "url" =>
+                                 "https://api.github.com/repos/skywinder/changelog_test/commits/9b35bb13dcd15b68e7bcbf10cde5eb937a54f710" } },
+                         { "name"        => "v0.0.1",
+                           "zipball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.1",
+                           "tarball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.1",
+                           "commit"      =>
+                             { "sha" => "4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d",
+                               "url" =>
+                                 "https://api.github.com/repos/skywinder/changelog_test/commits/4c2d6d1ed58bdb24b870dcb5d9f2ceed0283d69d" } },
+                         { "name"        => "0.0.4",
+                           "zipball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/zipball/0.0.4",
+                           "tarball_url" =>
+                             "https://api.github.com/repos/skywinder/changelog_test/tarball/0.0.4",
+                           "commit"      =>
+                             { "sha" => "ece0c3ab7142b21064b885061c55ede00ef6ce94",
+                               "url" =>
+                                 "https://api.github.com/repos/skywinder/changelog_test/commits/ece0c3ab7142b21064b885061c55ede00ef6ce94" } }]
 
         expect(fetcher.github_fetch_tags).to eq(expected_tags)
       end
@@ -92,12 +126,10 @@ describe GitHubChangelogGenerator::OctoFetcher do
     end
   end
 
-
   describe "#fetch_closed_issues_and_pr" do
     context "when API call is valid" do
       use_vcr_cassette
 
-
       it "returns issues" do
         issues, pull_requests = fetcher.fetch_closed_issues_and_pr
         expect(issues.size).to eq(7)
@@ -105,42 +137,127 @@ describe GitHubChangelogGenerator::OctoFetcher do
       end
 
       it "returns issue with proper key/values" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected_issue = {"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/events", "html_url"=>"https://github.com/skywinder/changelog_test/issues/14", "id"=>95419412, "number"=>14, "title"=>"Issue closed from commit from PR", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2015-07-16T12:06:08Z", "updated_at"=>"2015-07-16T12:21:42Z", "closed_at"=>"2015-07-16T12:21:42Z", "body"=>""}
+        issues, _pull_requests = fetcher.fetch_closed_issues_and_pr
+        expected_issue = { "url"            => "https://api.github.com/repos/skywinder/changelog_test/issues/14",
+                           "repository_url" => "https://api.github.com/repos/skywinder/changelog_test",
+                           "labels_url"     =>
+                             "https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}",
+                           "comments_url"   =>
+                             "https://api.github.com/repos/skywinder/changelog_test/issues/14/comments",
+                           "events_url"     =>
+                             "https://api.github.com/repos/skywinder/changelog_test/issues/14/events",
+                           "html_url"       => "https://github.com/skywinder/changelog_test/issues/14",
+                           "id"             => 95_419_412,
+                           "number"         => 14,
+                           "title"          => "Issue closed from commit from PR",
+                           "user"           =>
+                             { "login"               => "skywinder",
+                               "id"                  => 3_356_474,
+                               "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                               "gravatar_id"         => "",
+                               "url"                 => "https://api.github.com/users/skywinder",
+                               "html_url"            => "https://github.com/skywinder",
+                               "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                               "following_url"       =>
+                                 "https://api.github.com/users/skywinder/following{/other_user}",
+                               "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                               "starred_url"         =>
+                                 "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                               "subscriptions_url"   => "https://api.github.com/users/skywinder/subscriptions",
+                               "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                               "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                               "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                               "received_events_url" =>
+                                 "https://api.github.com/users/skywinder/received_events",
+                               "type"                => "User",
+                               "site_admin"          => false },
+                           "labels"         => [],
+                           "state"          => "closed",
+                           "locked"         => false,
+                           "assignee"       => nil,
+                           "milestone"      => nil,
+                           "comments"       => 0,
+                           "created_at"     => "2015-07-16T12:06:08Z",
+                           "updated_at"     => "2015-07-16T12:21:42Z",
+                           "closed_at"      => "2015-07-16T12:21:42Z",
+                           "body"           => "" }
         # Convert times to Time
-        expected_issue.each_pair do |k,v|
-          if v =~ /^2015-/
-            expected_issue[k] = Time.parse(v)
-          end
+        expected_issue.each_pair do |k, v|
+          expected_issue[k] = Time.parse(v) if v =~ /^2015-/
         end
 
         expect(issues.first).to eq(expected_issue)
       end
 
       it "returns pull request with proper key/values" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
-        expected_pr = {"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/21/events", "html_url"=>"https://github.com/skywinder/changelog_test/pull/21", "id"=>124925759, "number"=>21, "title"=>"Merged br (should appear in change log with  #20)", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2016-01-05T09:24:08Z", "updated_at"=>"2016-01-05T09:26:53Z", "closed_at"=>"2016-01-05T09:24:27Z", "pull_request"=>{"url"=>"https://api.github.com/repos/skywinder/changelog_test/pulls/21", "html_url"=>"https://github.com/skywinder/changelog_test/pull/21", "diff_url"=>"https://github.com/skywinder/changelog_test/pull/21.diff", "patch_url"=>"https://github.com/skywinder/changelog_test/pull/21.patch"}, "body"=>"to test https://github.com/skywinder/github-changelog-generator/pull/305\r\nshould appear in change log with #20"}
+        _issues, pull_requests = fetcher.fetch_closed_issues_and_pr
+        expected_pr = { "url"            => "https://api.github.com/repos/skywinder/changelog_test/issues/21",
+                        "repository_url" => "https://api.github.com/repos/skywinder/changelog_test",
+                        "labels_url"     =>
+                          "https://api.github.com/repos/skywinder/changelog_test/issues/21/labels{/name}",
+                        "comments_url"   =>
+                          "https://api.github.com/repos/skywinder/changelog_test/issues/21/comments",
+                        "events_url"     =>
+                          "https://api.github.com/repos/skywinder/changelog_test/issues/21/events",
+                        "html_url"       => "https://github.com/skywinder/changelog_test/pull/21",
+                        "id"             => 124_925_759,
+                        "number"         => 21,
+                        "title"          => "Merged br (should appear in change log with  #20)",
+                        "user"           =>
+                          { "login"               => "skywinder",
+                            "id"                  => 3_356_474,
+                            "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                            "gravatar_id"         => "",
+                            "url"                 => "https://api.github.com/users/skywinder",
+                            "html_url"            => "https://github.com/skywinder",
+                            "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                            "following_url"       =>
+                              "https://api.github.com/users/skywinder/following{/other_user}",
+                            "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                            "starred_url"         =>
+                              "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                            "subscriptions_url"   => "https://api.github.com/users/skywinder/subscriptions",
+                            "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                            "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                            "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                            "received_events_url" =>
+                              "https://api.github.com/users/skywinder/received_events",
+                            "type"                => "User",
+                            "site_admin"          => false },
+                        "labels"         => [],
+                        "state"          => "closed",
+                        "locked"         => false,
+                        "assignee"       => nil,
+                        "milestone"      => nil,
+                        "comments"       => 0,
+                        "created_at"     => "2016-01-05T09:24:08Z",
+                        "updated_at"     => "2016-01-05T09:26:53Z",
+                        "closed_at"      => "2016-01-05T09:24:27Z",
+                        "pull_request"   =>
+                          { "url"       => "https://api.github.com/repos/skywinder/changelog_test/pulls/21",
+                            "html_url"  => "https://github.com/skywinder/changelog_test/pull/21",
+                            "diff_url"  => "https://github.com/skywinder/changelog_test/pull/21.diff",
+                            "patch_url" => "https://github.com/skywinder/changelog_test/pull/21.patch" },
+                        "body"           =>
+                          "to test https://github.com/skywinder/github-changelog-generator/pull/305\r\nshould appear in change log with #20" }
         # Convert times to Time
-        expected_pr.each_pair do |k,v|
-          if v =~ /^2016-01/
-            expected_pr[k] = Time.parse(v)
-          end
+        expected_pr.each_pair do |k, v|
+          expected_pr[k] = Time.parse(v) if v =~ /^2016-01/
         end
 
         expect(pull_requests.first).to eq(expected_pr)
       end
 
-
       it "returns issues with labels" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
+        issues, _pull_requests = fetcher.fetch_closed_issues_and_pr
         expected = [[], [], ["Bug"], [], ["enhancement"], ["some label"], []]
-        expect(issues.map{|i| i['labels'].map{|l| l['name']} }).to eq(expected)
+        expect(issues.map { |i| i["labels"].map { |l| l["name"] } }).to eq(expected)
       end
 
       it "returns pull_requests with labels" do
-        issues, pull_requests = fetcher.fetch_closed_issues_and_pr
+        _issues, pull_requests = fetcher.fetch_closed_issues_and_pr
         expected = [[], [], [], [], [], ["enhancement"], [], [], ["invalid"], [], [], [], [], ["invalid"]]
-        expect(pull_requests.map{|i| i['labels'].map{|l| l['name']} }).to eq(expected)
+        expect(pull_requests.map { |i| i["labels"].map { |l| l["name"] } }).to eq(expected)
       end
     end
   end
@@ -158,93 +275,222 @@ describe GitHubChangelogGenerator::OctoFetcher do
         pull_requests = fetcher.fetch_closed_pull_requests
 
         pr = pull_requests.first
-        expect(pr.keys).to eq(["url", "id", "html_url", "diff_url", "patch_url", "issue_url", "number", "state", "locked", "title", "user", "body", "created_at", "updated_at", "closed_at", "merged_at", "merge_commit_sha", "assignee", "milestone", "commits_url", "review_comments_url", "review_comment_url", "comments_url", "statuses_url", "head", "base", "_links"])
+        expect(pr.keys).to eq(%w(url id html_url diff_url patch_url issue_url number state locked title user body created_at updated_at closed_at merged_at merge_commit_sha assignee milestone commits_url review_comments_url review_comment_url comments_url statuses_url head base _links))
       end
     end
   end
 
-
   describe "#fetch_events_async" do
     context "when API call is valid" do
       use_vcr_cassette
 
       it "populates issues" do
-        issues = [{"url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14", "repository_url"=>"https://api.github.com/repos/skywinder/changelog_test", "labels_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}", "comments_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/comments", "events_url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/14/events", "html_url"=>"https://github.com/skywinder/changelog_test/issues/14", "id"=>95419412, "number"=>14, "title"=>"Issue closed from commit from PR", "user"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "labels"=>[], "state"=>"closed", "locked"=>false, "assignee"=>nil, "milestone"=>nil, "comments"=>0, "created_at"=>"2015-07-16T12:06:08Z", "updated_at"=>"2015-07-16T12:21:42Z", "closed_at"=>"2015-07-16T12:21:42Z", "body"=>""}]
+        issues = [{ "url"            => "https://api.github.com/repos/skywinder/changelog_test/issues/14",
+                    "repository_url" => "https://api.github.com/repos/skywinder/changelog_test",
+                    "labels_url"     =>
+                      "https://api.github.com/repos/skywinder/changelog_test/issues/14/labels{/name}",
+                    "comments_url"   =>
+                      "https://api.github.com/repos/skywinder/changelog_test/issues/14/comments",
+                    "events_url"     =>
+                      "https://api.github.com/repos/skywinder/changelog_test/issues/14/events",
+                    "html_url"       => "https://github.com/skywinder/changelog_test/issues/14",
+                    "id"             => 95_419_412,
+                    "number"         => 14,
+                    "title"          => "Issue closed from commit from PR",
+                    "user"           =>
+                      { "login"               => "skywinder",
+                        "id"                  => 3_356_474,
+                        "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                        "gravatar_id"         => "",
+                        "url"                 => "https://api.github.com/users/skywinder",
+                        "html_url"            => "https://github.com/skywinder",
+                        "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                        "following_url"       =>
+                          "https://api.github.com/users/skywinder/following{/other_user}",
+                        "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                        "starred_url"         =>
+                          "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                        "subscriptions_url"   =>
+                          "https://api.github.com/users/skywinder/subscriptions",
+                        "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                        "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                        "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                        "received_events_url" =>
+                          "https://api.github.com/users/skywinder/received_events",
+                        "type"                => "User",
+                        "site_admin"          => false },
+                    "labels"         => [],
+                    "state"          => "closed",
+                    "locked"         => false,
+                    "assignee"       => nil,
+                    "milestone"      => nil,
+                    "comments"       => 0,
+                    "created_at"     => "2015-07-16T12:06:08Z",
+                    "updated_at"     => "2015-07-16T12:21:42Z",
+                    "closed_at"      => "2015-07-16T12:21:42Z",
+                    "body"           => "" }]
 
         # Check that they are blank to begin with
-        expect(issues.first['events']).to be_nil
+        expect(issues.first["events"]).to be_nil
 
         fetcher.fetch_events_async(issues)
-        issue_events = issues.first['events']
+        issue_events = issues.first["events"]
 
-        expected_events = [{"id"=>357462189, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"referenced", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:16Z"}, {"id"=>357462542, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462542", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"closed", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:42Z"}]
+        expected_events = [{ "id"         => 357_462_189,
+                             "url"        =>
+                               "https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189",
+                             "actor"      =>
+                               { "login"               => "skywinder",
+                                 "id"                  => 3_356_474,
+                                 "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                                 "gravatar_id"         => "",
+                                 "url"                 => "https://api.github.com/users/skywinder",
+                                 "html_url"            => "https://github.com/skywinder",
+                                 "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                                 "following_url"       =>
+                                   "https://api.github.com/users/skywinder/following{/other_user}",
+                                 "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                                 "starred_url"         =>
+                                   "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                                 "subscriptions_url"   =>
+                                   "https://api.github.com/users/skywinder/subscriptions",
+                                 "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                                 "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                                 "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                                 "received_events_url" =>
+                                   "https://api.github.com/users/skywinder/received_events",
+                                 "type"                => "User",
+                                 "site_admin"          => false },
+                             "event"      => "referenced",
+                             "commit_id"  => "decfe840d1a1b86e0c28700de5362d3365a29555",
+                             "commit_url" =>
+                               "https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555",
+                             "created_at" => "2015-07-16T12:21:16Z" },
+                           { "id"         => 357_462_542,
+                             "url"        =>
+                               "https://api.github.com/repos/skywinder/changelog_test/issues/events/357462542",
+                             "actor"      =>
+                               { "login"               => "skywinder",
+                                 "id"                  => 3_356_474,
+                                 "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                                 "gravatar_id"         => "",
+                                 "url"                 => "https://api.github.com/users/skywinder",
+                                 "html_url"            => "https://github.com/skywinder",
+                                 "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                                 "following_url"       =>
+                                   "https://api.github.com/users/skywinder/following{/other_user}",
+                                 "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                                 "starred_url"         =>
+                                   "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                                 "subscriptions_url"   =>
+                                   "https://api.github.com/users/skywinder/subscriptions",
+                                 "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                                 "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                                 "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                                 "received_events_url" =>
+                                   "https://api.github.com/users/skywinder/received_events",
+                                 "type"                => "User",
+                                 "site_admin"          => false },
+                             "event"      => "closed",
+                             "commit_id"  => "decfe840d1a1b86e0c28700de5362d3365a29555",
+                             "commit_url" =>
+                               "https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555",
+                             "created_at" => "2015-07-16T12:21:42Z" }]
 
         # Convert times to Time
         expected_events.map! do |event|
           event.each_pair do |k, v|
-            if v =~ /^201[56]-/
-              event[k] = Time.parse(v)
-            end
+            event[k] = Time.parse(v) if v =~ /^201[56]-/
           end
         end
 
         expect(issue_events).to eq(expected_events)
       end
-
     end
   end
 
-
   describe "#fetch_date_of_tag" do
     context "when API call is valid" do
       use_vcr_cassette
 
       it "returns date" do
-        tag = {"name"=>"v0.0.3", "zipball_url"=>"https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3", "tarball_url"=>"https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3", "commit"=>{"sha"=>"a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90", "url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90"}}
+        tag = { "name"        => "v0.0.3",
+                "zipball_url" =>
+                  "https://api.github.com/repos/skywinder/changelog_test/zipball/v0.0.3",
+                "tarball_url" =>
+                  "https://api.github.com/repos/skywinder/changelog_test/tarball/v0.0.3",
+                "commit"      =>
+                  { "sha" => "a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90",
+                    "url" =>
+                      "https://api.github.com/repos/skywinder/changelog_test/commits/a0cba2b1a1ea9011ab07ee1ac140ba5a5eb8bd90" } }
+
         dt = fetcher.fetch_date_of_tag(tag)
         expect(dt).to eq(Time.parse("2015-03-04 19:01:48 UTC"))
       end
-
     end
   end
 
-
   describe "#fetch_commit" do
     context "when API call is valid" do
       use_vcr_cassette
 
       it "returns commit" do
-        event = {"id"=>357462189, "url"=>"https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189", "actor"=>{"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}, "event"=>"referenced", "commit_id"=>"decfe840d1a1b86e0c28700de5362d3365a29555", "commit_url"=>"https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555", "created_at"=>"2015-07-16T12:21:16Z"}
+        event = { "id"         => 357_462_189,
+                  "url"        =>
+                    "https://api.github.com/repos/skywinder/changelog_test/issues/events/357462189",
+                  "actor"      =>
+                    { "login"               => "skywinder",
+                      "id"                  => 3_356_474,
+                      "avatar_url"          => "https://avatars.githubusercontent.com/u/3356474?v=3",
+                      "gravatar_id"         => "",
+                      "url"                 => "https://api.github.com/users/skywinder",
+                      "html_url"            => "https://github.com/skywinder",
+                      "followers_url"       => "https://api.github.com/users/skywinder/followers",
+                      "following_url"       =>
+                        "https://api.github.com/users/skywinder/following{/other_user}",
+                      "gists_url"           => "https://api.github.com/users/skywinder/gists{/gist_id}",
+                      "starred_url"         =>
+                        "https://api.github.com/users/skywinder/starred{/owner}{/repo}",
+                      "subscriptions_url"   => "https://api.github.com/users/skywinder/subscriptions",
+                      "organizations_url"   => "https://api.github.com/users/skywinder/orgs",
+                      "repos_url"           => "https://api.github.com/users/skywinder/repos",
+                      "events_url"          => "https://api.github.com/users/skywinder/events{/privacy}",
+                      "received_events_url" =>
+                        "https://api.github.com/users/skywinder/received_events",
+                      "type"                => "User",
+                      "site_admin"          => false },
+                  "event"      => "referenced",
+                  "commit_id"  => "decfe840d1a1b86e0c28700de5362d3365a29555",
+                  "commit_url" =>
+                    "https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555",
+                  "created_at" => "2015-07-16T12:21:16Z" }
         commit = fetcher.fetch_commit(event)
 
         expectations = [
-          ["sha", "decfe840d1a1b86e0c28700de5362d3365a29555"],
+          %w(sha decfe840d1a1b86e0c28700de5362d3365a29555),
           ["url",
            "https://api.github.com/repos/skywinder/changelog_test/commits/decfe840d1a1b86e0c28700de5362d3365a29555"],
           # OLD API: "https://api.github.com/repos/skywinder/changelog_test/git/commits/decfe840d1a1b86e0c28700de5362d3365a29555"],
           ["html_url",
            "https://github.com/skywinder/changelog_test/commit/decfe840d1a1b86e0c28700de5362d3365a29555"],
           ["author",
-           {"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}],
+           { "login" => "skywinder", "id" => 3_356_474, "avatar_url" => "https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id" => "", "url" => "https://api.github.com/users/skywinder", "html_url" => "https://github.com/skywinder", "followers_url" => "https://api.github.com/users/skywinder/followers", "following_url" => "https://api.github.com/users/skywinder/following{/other_user}", "gists_url" => "https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url" => "https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url" => "https://api.github.com/users/skywinder/subscriptions", "organizations_url" => "https://api.github.com/users/skywinder/orgs", "repos_url" => "https://api.github.com/users/skywinder/repos", "events_url" => "https://api.github.com/users/skywinder/events{/privacy}", "received_events_url" => "https://api.github.com/users/skywinder/received_events", "type" => "User", "site_admin" => false }],
           ["committer",
-           {"login"=>"skywinder", "id"=>3356474, "avatar_url"=>"https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id"=>"", "url"=>"https://api.github.com/users/skywinder", "html_url"=>"https://github.com/skywinder", "followers_url"=>"https://api.github.com/users/skywinder/followers", "following_url"=>"https://api.github.com/users/skywinder/following{/other_user}", "gists_url"=>"https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url"=>"https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url"=>"https://api.github.com/users/skywinder/subscriptions", "organizations_url"=>"https://api.github.com/users/skywinder/orgs", "repos_url"=>"https://api.github.com/users/skywinder/repos", "events_url"=>"https://api.github.com/users/skywinder/events{/privacy}", "received_events_url"=>"https://api.github.com/users/skywinder/received_events", "type"=>"User", "site_admin"=>false}],
+           { "login" => "skywinder", "id" => 3_356_474, "avatar_url" => "https://avatars.githubusercontent.com/u/3356474?v=3", "gravatar_id" => "", "url" => "https://api.github.com/users/skywinder", "html_url" => "https://github.com/skywinder", "followers_url" => "https://api.github.com/users/skywinder/followers", "following_url" => "https://api.github.com/users/skywinder/following{/other_user}", "gists_url" => "https://api.github.com/users/skywinder/gists{/gist_id}", "starred_url" => "https://api.github.com/users/skywinder/starred{/owner}{/repo}", "subscriptions_url" => "https://api.github.com/users/skywinder/subscriptions", "organizations_url" => "https://api.github.com/users/skywinder/orgs", "repos_url" => "https://api.github.com/users/skywinder/repos", "events_url" => "https://api.github.com/users/skywinder/events{/privacy}", "received_events_url" => "https://api.github.com/users/skywinder/received_events", "type" => "User", "site_admin" => false }],
           ["parents",
-           [{"sha"=>"7ec095e5e3caceacedabf44d0b9b10da17c92e51",
-             "url"=>
+           [{ "sha" => "7ec095e5e3caceacedabf44d0b9b10da17c92e51",
+              "url" =>
                "https://api.github.com/repos/skywinder/changelog_test/commits/7ec095e5e3caceacedabf44d0b9b10da17c92e51",
-             # OLD API: "https://api.github.com/repos/skywinder/changelog_test/git/commits/7ec095e5e3caceacedabf44d0b9b10da17c92e51",
-             "html_url"=>
-               "https://github.com/skywinder/changelog_test/commit/7ec095e5e3caceacedabf44d0b9b10da17c92e51"}]
+              # OLD API: "https://api.github.com/repos/skywinder/changelog_test/git/commits/7ec095e5e3caceacedabf44d0b9b10da17c92e51",
+              "html_url" =>
+               "https://github.com/skywinder/changelog_test/commit/7ec095e5e3caceacedabf44d0b9b10da17c92e51" }]
           ]
         ]
 
         expectations.each do |property, val|
           expect(commit[property]).to eq(val)
         end
-
       end
-
     end
   end
-
 end