Options: add error class, refactor
- improve readability of specs - extract methods
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@ -2,6 +2,8 @@
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require 'delegate'
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module GitHubChangelogGenerator
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class Options < SimpleDelegator
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UnsupportedOptionError = Class.new(ArgumentError)
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KNOWN_OPTIONS = [
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:add_issues_wo_labels,
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:add_pr_wo_labels,
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@ -56,9 +58,12 @@ module GitHubChangelogGenerator
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def initialize(values)
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super(values)
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if unsupported_options.any?
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raise ArgumentError, "Unsupported options #{unsupported_options}"
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unsupported_options.any? && raise(UnsupportedOptionError, unsupported_options.inspect)
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end
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def []=(key, val)
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supported_option?(key) || raise(UnsupportedOptionError, key.inspect)
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values[key] = val
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end
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def to_hash
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@ -72,7 +77,15 @@ module GitHubChangelogGenerator
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end
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def unsupported_options
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values.keys - (KNOWN_OPTIONS + THESE_ARE_DIFFERENT)
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values.keys - supported_options
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end
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def supported_option?(key)
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supported_options.include?(key)
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end
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def supported_options
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KNOWN_OPTIONS + THESE_ARE_DIFFERENT
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end
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end
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end
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@ -1,16 +1,42 @@
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# frozen_string_literal: true
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describe GitHubChangelogGenerator::Options do
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it 'can be instantiated with defaults' do
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expect(described_class.new(user: 'olle')[:user]).to eq('olle')
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RSpec.describe GitHubChangelogGenerator::Options do
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describe "#initialize" do
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context "with known options" do
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it "instantiates successfully" do
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expect(described_class.new(user: "olle")[:user]).to eq("olle")
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end
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end
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it 'disallows unknown option names' do
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context "with unknown options" do
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it "raises an error" do
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expect {
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described_class.new(
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git_remote: 'origin',
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strength: 'super-strength',
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wisdom: 'deep'
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git_remote: "origin",
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strength: "super-strength",
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wisdom: "deep"
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)
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}.to raise_error(ArgumentError, "Unsupported options [:strength, :wisdom]")
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}.to raise_error("[:strength, :wisdom]")
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end
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end
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end
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describe "#[]=(key, value)" do
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let(:options) { described_class.new(git_remote: "origin") }
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context "with known options" do
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it "sets the option value" do
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expect {
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options[:git_remote] = "in the cloud"
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}.to change { options[:git_remote] }.to "in the cloud"
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end
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end
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context "with unknown options" do
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it "raises an error" do
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expect {
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options[:charisma] = 8
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}.to raise_error(":charisma")
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end
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end
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end
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end
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