debian-mirror-gitlab/spec/scripts/changed-feature-flags_spec.rb

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# frozen_string_literal: true
require 'fast_spec_helper'
load File.expand_path('../../scripts/changed-feature-flags', __dir__)
RSpec.describe 'scripts/changed-feature-flags' do
describe GetFeatureFlagsFromFiles do
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let!(:feature_flag_definition1) do
file = File.open(File.join(ff_dir, "#{file_name1}.yml"), 'w+')
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file.write(<<~YAML)
---
name: foo_flag
default_enabled: true
YAML
file.rewind
file
end
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let!(:feature_flag_definition2) do
file = File.open(File.join(ff_dir, "#{file_name2}.yml"), 'w+')
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file.write(<<~YAML)
---
name: bar_flag
default_enabled: false
YAML
file.rewind
file
end
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let!(:feature_flag_diff1) do
FileUtils.mkdir_p(File.join(diffs_dir, ff_sub_dir))
file = File.open(File.join(diffs_dir, ff_sub_dir, "#{file_name1}.yml.diff"), 'w+')
file.write(<<~YAML)
@@ -5,4 +5,4 @@
name: foo_flag
-default_enabled: false
+default_enabled: true
YAML
file.rewind
file
end
let!(:feature_flag_diff2) do
FileUtils.mkdir_p(File.join(diffs_dir, ff_sub_dir))
file = File.open(File.join(diffs_dir, ff_sub_dir, "#{file_name2}.yml.diff"), 'w+')
file.write(<<~YAML)
@@ -0,0 +0,0 @@
name: bar_flag
-default_enabled: true
+default_enabled: false
YAML
file.rewind
file
end
let!(:deleted_feature_flag_diff) do
FileUtils.mkdir_p(File.join(diffs_dir, ff_sub_dir))
file = File.open(File.join(diffs_dir, ff_sub_dir, "foobar_ff_#{SecureRandom.hex(8)}.yml.deleted.diff"), 'w+')
file.write(<<~YAML)
@@ -0,0 +0,0 @@
-name: foobar_flag
-default_enabled: true
YAML
file.rewind
file
end
before do
allow(Dir).to receive(:pwd).and_return(Dir.tmpdir)
end
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after do
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feature_flag_definition1.close
feature_flag_definition2.close
feature_flag_diff1.close
feature_flag_diff2.close
deleted_feature_flag_diff.close
FileUtils.rm_r(ff_dir)
FileUtils.rm_r(diffs_dir)
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end
describe '.extracted_flags' do
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let(:file_name1) { "foo_ff_#{SecureRandom.hex(8)}"}
let(:file_name2) { "bar_ff_#{SecureRandom.hex(8)}"}
let(:ff_dir) { FileUtils.mkdir_p(File.join(Dir.tmpdir, ff_sub_dir)) }
let(:diffs_dir) { FileUtils.mkdir_p(File.join(Dir.tmpdir, 'diffs')).first }
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shared_examples 'extract feature flags' do
it 'returns feature flags on their own' do
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subject = described_class.new({ files: diffs_dir })
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expect(subject.extracted_flags.split(',')).to include('foo_flag', 'bar_flag')
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end
it 'returns feature flags and their state as enabled' do
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subject = described_class.new({ files: diffs_dir, state: 'enabled' })
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expect(subject.extracted_flags.split(',')).to include('foo_flag=enabled', 'bar_flag=enabled')
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end
it 'returns feature flags and their state as disabled' do
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subject = described_class.new({ files: diffs_dir, state: 'disabled' })
expect(subject.extracted_flags.split(',')).to include('foo_flag=disabled', 'bar_flag=disabled')
end
it 'does not return feature flags when there are mixed deleted and non-deleted definition files' do
subject = described_class.new({ files: diffs_dir, state: 'deleted' })
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expect(subject.extracted_flags).to eq('')
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end
end
context 'with definition files in the development directory' do
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let(:ff_sub_dir) { %w[feature_flags development] }
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it_behaves_like 'extract feature flags'
end
context 'with definition files in the ops directory' do
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let(:ff_sub_dir) { %w[feature_flags ops] }
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it_behaves_like 'extract feature flags'
end
context 'with definition files in the experiment directory' do
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let(:ff_sub_dir) { %w[feature_flags experiment] }
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it 'ignores the files' do
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subject = described_class.new({ files: diffs_dir })
expect(subject.extracted_flags).to eq('')
end
end
context 'with only deleted definition files' do
let(:ff_sub_dir) { %w[feature_flags development] }
before do
feature_flag_diff1.close
feature_flag_diff2.close
FileUtils.rm_r(feature_flag_diff1)
FileUtils.rm_r(feature_flag_diff2)
end
it 'returns feature flags and their state as deleted' do
subject = described_class.new({ files: diffs_dir, state: 'deleted' })
expect(subject.extracted_flags).to eq('foobar_flag=deleted')
end
it 'does not return feature flags when the desired state is enabled' do
subject = described_class.new({ files: diffs_dir, state: 'enabled' })
expect(subject.extracted_flags).to eq('')
end
it 'does not return feature flags when the desired state is disabled' do
subject = described_class.new({ files: diffs_dir, state: 'disabled' })
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expect(subject.extracted_flags).to eq('')
end
end
end
end
end