github-changelog-generator/spec/unit/generator/entry_spec.rb
Eric Putnam 587557e1ac
Refactor generation code and allow custom sections
There's a lot in this PR.
- Added a Section class to more easily make the other changes and
  hopefully add flexibility for the future
- Added an option called `configure_sections` that allows you create
  your own custom sections. It blows away all other sections and uses
only the ones you give it.
- Added an option called `add_sections` that allows you to add_sections
  to the default section set
- Added an option called `include_merged` that can be used when
  configure_sections is defined. Configure sections blows away any and
all default sections so to get this one back, you have to set this
option.
- Added tests for this stuff

@HAIL9000 was a co-author. Because of a little git snafu, I accidentally
squashed all of our work into one so it looks like it was just me.

---

Refactor details:

Before this change, the code in generator.rb and generator_generation.rb was conflated and
method call flow went back and forth between the two files seemingly
randomly. They also both defined the exact same class, which is
un-ruby-ish. I tried to separate methods used for the whole changelog
generation from methods used for specific parts of the changelog and
move them into specific classes.

I reasoned that a changelog is a series of "entries" of all tagged
releases plus an extra entry for the unreleased entry. Each entry is
comprised of a header and a series of "sections" for that entry. Each
section is comprized of a list of issues and/or pull requests for that
entry. So the log contains entries, entries contain sections, and
sections contain issues & prs. I have structured the classes around this idea.

- lib/github_changelog_generator/generator/generator.rb is for code
related to generating the entire changelog.
- lib/github_changelog_generator/generator/entry.rb is for code related
to generating entries.
- lib/github_changelog_generator/generator/section.rb is for code
relating to geneating entry sections.

Issues and PRs are already special objects, so it doesn't make sense to
break those out into their own class.
2017-12-14 16:13:41 -08:00

364 lines
13 KiB
Ruby

# frozen_string_literal: true
# rubocop:disable Metrics/ModuleLength
module GitHubChangelogGenerator
RSpec.describe Entry do
def label(name)
{ "name" => name }
end
def issue(title, labels, number = "1", user = { "login" => "user" })
{
"title" => "issue #{title}",
"labels" => labels.map { |l| label(l) },
"number" => number,
"html_url" => "https://github.com/owner/repo/issue/#{number}",
"user" => user
}
end
def pr(title, labels, number = "1", user = { "login" => "user" })
{
"pull_request" => true,
"title" => "pr #{title}",
"labels" => labels.map { |l| label(l) },
"number" => number,
"html_url" => "https://github.com/owner/repo/pull/#{number}",
"user" => user.merge("html_url" => "https://github.com/#{user['login']}")
}
end
def titles_for(issues)
issues.map { |issue| issue["title"] }
end
def default_sections
%w[enhancements bugs breaking issues]
end
describe "#create_entry_for_tag" do
let(:options) do
Parser.default_options.merge(
user: "owner",
project: "repo",
bug_labels: ["bug"],
enhancement_labels: ["enhancement"],
breaking_labels: ["breaking"]
)
end
let(:issues) do
[
issue("no labels", [], "5", "login" => "user1"),
issue("enhancement", ["enhancement"], "6", "login" => "user2"),
issue("bug", ["bug"], "7", "login" => "user1"),
issue("breaking", ["breaking"], "8", "login" => "user5"),
issue("all the labels", %w[enhancement bug breaking], "9", "login" => "user9")
]
end
let(:pull_requests) do
[
pr("no labels", [], "10", "login" => "user1"),
pr("enhancement", ["enhancement"], "11", "login" => "user5"),
pr("bug", ["bug"], "12", "login" => "user5"),
pr("breaking", ["breaking"], "13", "login" => "user5"),
pr("all the labels", %w[enhancement bug breaking], "14", "login" => "user5")
]
end
subject { described_class.new(options) }
it "generates a header and body" do
expect(subject.create_entry_for_tag(pull_requests, issues, "1.0.1", "1.0.1", Time.new(2017, 12, 4), "1.0.0")).to eq(<<-CHANGELOG.gsub(/^ {8}/, "")
## [1.0.1](https://github.com/owner/repo/tree/1.0.1) (2017-12-04)
[Full Changelog](https://github.com/owner/repo/compare/1.0.0...1.0.1)
**Breaking changes:**
- issue breaking [\\#8](https://github.com/owner/repo/issue/8)
- pr breaking [\\#13](https://github.com/owner/repo/pull/13) ([user5](https://github.com/user5))
**Implemented enhancements:**
- issue enhancement [\\#6](https://github.com/owner/repo/issue/6)
- issue all the labels [\\#9](https://github.com/owner/repo/issue/9)
- pr enhancement [\\#11](https://github.com/owner/repo/pull/11) ([user5](https://github.com/user5))
- pr all the labels [\\#14](https://github.com/owner/repo/pull/14) ([user5](https://github.com/user5))
**Fixed bugs:**
- issue bug [\\#7](https://github.com/owner/repo/issue/7)
- pr bug [\\#12](https://github.com/owner/repo/pull/12) ([user5](https://github.com/user5))
**Closed issues:**
- issue no labels [\\#5](https://github.com/owner/repo/issue/5)
**Merged pull requests:**
- pr no labels [\\#10](https://github.com/owner/repo/pull/10) ([user1](https://github.com/user1))
CHANGELOG
)
end
end
describe "#parse_sections" do
before do
subject { described_class.new }
end
context "valid json" do
let(:sections_string) { "{ \"foo\": { \"prefix\": \"foofix\", \"labels\": [\"test1\", \"test2\"]}, \"bar\": { \"prefix\": \"barfix\", \"labels\": [\"test3\", \"test4\"]}}" }
let(:sections_array) do
[
Section.new(name: "foo", prefix: "foofix", labels: %w[test1 test2]),
Section.new(name: "bar", prefix: "barfix", labels: %w[test3 test4])
]
end
it "returns an array with 2 objects" do
arr = subject.send(:parse_sections, sections_string)
expect(arr.size).to eq 2
arr.each { |section| expect(section).to be_an_instance_of Section }
end
it "returns correctly constructed sections" do
require "json"
sections_json = JSON.parse(sections_string)
sections_array.each_index do |i|
aggregate_failures "checks each component" do
expect(sections_array[i].name).to eq sections_json.first[0]
expect(sections_array[i].prefix).to eq sections_json.first[1]["prefix"]
expect(sections_array[i].labels).to eq sections_json.first[1]["labels"]
expect(sections_array[i].issues).to eq []
end
sections_json.shift
end
end
end
context "hash" do
let(:sections_hash) do
{
enhancements: {
prefix: "**Enhancements**",
labels: %w[feature enhancement]
},
breaking: {
prefix: "**Breaking**",
labels: ["breaking"]
},
bugs: {
prefix: "**Bugs**",
labels: ["bug"]
}
}
end
let(:sections_array) do
[
Section.new(name: "enhancements", prefix: "**Enhancements**", labels: %w[feature enhancement]),
Section.new(name: "breaking", prefix: "**Breaking**", labels: ["breaking"]),
Section.new(name: "bugs", prefix: "**Bugs**", labels: ["bug"])
]
end
it "returns an array with 3 objects" do
arr = subject.send(:parse_sections, sections_hash)
expect(arr.size).to eq 3
arr.each { |section| expect(section).to be_an_instance_of Section }
end
it "returns correctly constructed sections" do
sections_array.each_index do |i|
aggregate_failures "checks each component" do
expect(sections_array[i].name).to eq sections_hash.first[0].to_s
expect(sections_array[i].prefix).to eq sections_hash.first[1][:prefix]
expect(sections_array[i].labels).to eq sections_hash.first[1][:labels]
expect(sections_array[i].issues).to eq []
end
sections_hash.shift
end
end
end
end
describe "#parse_by_sections" do
context "default sections" do
let(:options) do
{
bug_labels: ["bug"],
enhancement_labels: ["enhancement"],
breaking_labels: ["breaking"]
}
end
let(:issues) do
[
issue("no labels", []),
issue("enhancement", ["enhancement"]),
issue("bug", ["bug"]),
issue("breaking", ["breaking"]),
issue("all the labels", %w[enhancement bug breaking])
]
end
let(:pull_requests) do
[
pr("no labels", []),
pr("enhancement", ["enhancement"]),
pr("bug", ["bug"]),
pr("breaking", ["breaking"]),
pr("all the labels", %w[enhancement bug breaking])
]
end
subject { described_class.new(options) }
before do
subject.send(:set_sections_and_maps)
@arr = subject.send(:parse_by_sections, pull_requests, issues)
end
it "returns 4 sections" do
expect(@arr.size).to eq 4
end
it "returns default sections" do
default_sections.each { |default_section| expect(@arr.select { |section| section.name == default_section }.size).to eq 1 }
end
it "assigns issues to the correct sections" do
breaking_section = @arr.select { |section| section.name == "breaking" }[0]
enhancement_section = @arr.select { |section| section.name == "enhancements" }[0]
issue_section = @arr.select { |section| section.name == "issues" }[0]
bug_section = @arr.select { |section| section.name == "bugs" }[0]
expect(titles_for(breaking_section.issues)).to eq(["issue breaking", "pr breaking"])
expect(titles_for(enhancement_section.issues)).to eq(["issue enhancement", "issue all the labels", "pr enhancement", "pr all the labels"])
expect(titles_for(issue_section.issues)).to eq(["issue no labels"])
expect(titles_for(bug_section.issues)).to eq(["issue bug", "pr bug"])
expect(titles_for(pull_requests)).to eq(["pr no labels"])
end
end
context "configure sections" do
let(:options) do
{
configure_sections: "{ \"foo\": { \"prefix\": \"foofix\", \"labels\": [\"test1\", \"test2\"]}, \"bar\": { \"prefix\": \"barfix\", \"labels\": [\"test3\", \"test4\"]}}"
}
end
let(:issues) do
[
issue("no labels", []),
issue("test1", ["test1"]),
issue("test3", ["test3"]),
issue("test4", ["test4"]),
issue("all the labels", %w[test1 test2 test3 test4])
]
end
let(:pull_requests) do
[
pr("no labels", []),
pr("test1", ["test1"]),
pr("test3", ["test3"]),
pr("test4", ["test4"]),
pr("all the labels", %w[test1 test2 test3 test4])
]
end
subject { described_class.new(options) }
before do
subject.send(:set_sections_and_maps)
@arr = subject.send(:parse_by_sections, pull_requests, issues)
end
it "returns 2 sections" do
expect(@arr.size).to eq 2
end
it "returns only configured sections" do
expect(@arr.select { |section| section.name == "foo" }.size).to eq 1
expect(@arr.select { |section| section.name == "bar" }.size).to eq 1
end
it "assigns issues to the correct sections" do
foo_section = @arr.select { |section| section.name == "foo" }[0]
bar_section = @arr.select { |section| section.name == "bar" }[0]
aggregate_failures "checks all sections" do
expect(titles_for(foo_section.issues)).to eq(["issue test1", "issue all the labels", "pr test1", "pr all the labels"])
expect(titles_for(bar_section.issues)).to eq(["issue test3", "issue test4", "pr test3", "pr test4"])
expect(titles_for(pull_requests)).to eq(["pr no labels"])
end
end
end
context "add sections" do
let(:options) do
{
bug_labels: ["bug"],
enhancement_labels: ["enhancement"],
breaking_labels: ["breaking"],
add_sections: "{ \"foo\": { \"prefix\": \"foofix\", \"labels\": [\"test1\", \"test2\"]}}"
}
end
let(:issues) do
[
issue("no labels", []),
issue("test1", ["test1"]),
issue("bugaboo", ["bug"]),
issue("all the labels", %w[test1 test2 enhancement bug])
]
end
let(:pull_requests) do
[
pr("no labels", []),
pr("test1", ["test1"]),
pr("enhance", ["enhancement"]),
pr("all the labels", %w[test1 test2 enhancement bug])
]
end
subject { described_class.new(options) }
before do
subject.send(:set_sections_and_maps)
@arr = subject.send(:parse_by_sections, pull_requests, issues)
end
it "returns 5 sections" do
expect(@arr.size).to eq 5
end
it "returns default sections" do
default_sections.each { |default_section| expect(@arr.select { |section| section.name == default_section }.size).to eq 1 }
end
it "returns added section" do
expect(@arr.select { |section| section.name == "foo" }.size).to eq 1
end
it "assigns issues to the correct sections" do
foo_section = @arr.select { |section| section.name == "foo" }[0]
enhancement_section = @arr.select { |section| section.name == "enhancements" }[0]
bug_section = @arr.select { |section| section.name == "bugs" }[0]
aggregate_failures "checks all sections" do
expect(titles_for(foo_section.issues)).to eq(["issue test1", "issue all the labels", "pr test1", "pr all the labels"])
expect(titles_for(enhancement_section.issues)).to eq(["pr enhance"])
expect(titles_for(bug_section.issues)).to eq(["issue bugaboo"])
expect(titles_for(pull_requests)).to eq(["pr no labels"])
end
end
end
end
end
end
# rubocop:enable Metrics/ModuleLength