debian-mirror-gitlab/spec/lib/feature_spec.rb

288 lines
8.8 KiB
Ruby
Raw Normal View History

2019-10-12 21:52:04 +05:30
# frozen_string_literal: true
2017-09-10 17:25:29 +05:30
require 'spec_helper'
describe Feature do
2018-11-20 20:47:30 +05:30
before do
# We mock all calls to .enabled? to return true in order to force all
# specs to run the feature flag gated behavior, but here we need a clean
# behavior from the class
allow(described_class).to receive(:enabled?).and_call_original
end
2017-09-10 17:25:29 +05:30
describe '.get' do
let(:feature) { double(:feature) }
let(:key) { 'my_feature' }
it 'returns the Flipper feature' do
expect_any_instance_of(Flipper::DSL).to receive(:feature).with(key)
.and_return(feature)
expect(described_class.get(key)).to be(feature)
end
end
2018-03-17 18:26:18 +05:30
describe '.persisted_names' do
it 'returns the names of the persisted features' do
Feature::FlipperFeature.create!(key: 'foo')
expect(described_class.persisted_names).to eq(%w[foo])
end
it 'returns an empty Array when no features are presisted' do
expect(described_class.persisted_names).to be_empty
end
2019-09-30 21:07:59 +05:30
it 'caches the feature names when request store is active',
:request_store, :use_clean_rails_memory_store_caching do
2018-03-17 18:26:18 +05:30
Feature::FlipperFeature.create!(key: 'foo')
expect(Feature::FlipperFeature)
.to receive(:feature_names)
.once
.and_call_original
2019-09-30 21:07:59 +05:30
expect(Gitlab::ThreadMemoryCache.cache_backend)
.to receive(:fetch)
.once
.with('flipper:persisted_names', expires_in: 1.minute)
.and_call_original
2018-03-17 18:26:18 +05:30
2.times do
expect(described_class.persisted_names).to eq(%w[foo])
end
end
end
describe '.persisted?' do
2018-11-18 11:00:15 +05:30
context 'when the feature is persisted' do
it 'returns true when feature name is a string' do
Feature::FlipperFeature.create!(key: 'foo')
feature = double(:feature, name: 'foo')
expect(described_class.persisted?(feature)).to eq(true)
end
it 'returns true when feature name is a symbol' do
Feature::FlipperFeature.create!(key: 'foo')
2018-03-17 18:26:18 +05:30
2018-11-18 11:00:15 +05:30
feature = double(:feature, name: :foo)
2018-03-17 18:26:18 +05:30
2018-11-18 11:00:15 +05:30
expect(described_class.persisted?(feature)).to eq(true)
end
2018-03-17 18:26:18 +05:30
end
2018-11-18 11:00:15 +05:30
context 'when the feature is not persisted' do
it 'returns false when feature name is a string' do
feature = double(:feature, name: 'foo')
expect(described_class.persisted?(feature)).to eq(false)
end
2018-03-17 18:26:18 +05:30
2018-11-18 11:00:15 +05:30
it 'returns false when feature name is a symbol' do
feature = double(:feature, name: :bar)
expect(described_class.persisted?(feature)).to eq(false)
end
2018-03-17 18:26:18 +05:30
end
end
2017-09-10 17:25:29 +05:30
describe '.all' do
let(:features) { Set.new }
it 'returns the Flipper features as an array' do
expect_any_instance_of(Flipper::DSL).to receive(:features)
.and_return(features)
expect(described_class.all).to eq(features.to_a)
end
end
2018-11-08 19:23:39 +05:30
describe '.flipper' do
2018-12-05 23:21:45 +05:30
before do
described_class.instance_variable_set(:@flipper, nil)
end
context 'when request store is inactive' do
2018-11-08 19:23:39 +05:30
it 'memoizes the Flipper instance' do
expect(Flipper).to receive(:new).once.and_call_original
2.times do
described_class.flipper
end
end
end
2018-12-05 23:21:45 +05:30
context 'when request store is active', :request_store do
it 'memoizes the Flipper instance' do
expect(Flipper).to receive(:new).once.and_call_original
described_class.flipper
2018-11-08 19:23:39 +05:30
described_class.instance_variable_set(:@flipper, nil)
2018-12-05 23:21:45 +05:30
described_class.flipper
2018-11-08 19:23:39 +05:30
end
end
end
2018-11-20 20:47:30 +05:30
describe '.enabled?' do
it 'returns false for undefined feature' do
expect(described_class.enabled?(:some_random_feature_flag)).to be_falsey
end
it 'returns true for undefined feature with default_enabled' do
expect(described_class.enabled?(:some_random_feature_flag, default_enabled: true)).to be_truthy
end
it 'returns false for existing disabled feature in the database' do
described_class.disable(:disabled_feature_flag)
expect(described_class.enabled?(:disabled_feature_flag)).to be_falsey
end
it 'returns true for existing enabled feature in the database' do
described_class.enable(:enabled_feature_flag)
expect(described_class.enabled?(:enabled_feature_flag)).to be_truthy
end
2019-09-30 21:07:59 +05:30
it { expect(described_class.l1_cache_backend).to eq(Gitlab::ThreadMemoryCache.cache_backend) }
it { expect(described_class.l2_cache_backend).to eq(Rails.cache) }
it 'caches the status in L1 and L2 caches',
:request_store, :use_clean_rails_memory_store_caching do
described_class.enable(:enabled_feature_flag)
flipper_key = "flipper/v1/feature/enabled_feature_flag"
expect(described_class.l2_cache_backend)
.to receive(:fetch)
.once
.with(flipper_key, expires_in: 1.hour)
.and_call_original
expect(described_class.l1_cache_backend)
.to receive(:fetch)
.once
.with(flipper_key, expires_in: 1.minute)
.and_call_original
2.times do
expect(described_class.enabled?(:enabled_feature_flag)).to be_truthy
end
end
context 'cached feature flag', :request_store do
let(:flag) { :some_feature_flag }
before do
described_class.flipper.memoize = false
described_class.enabled?(flag)
end
it 'caches the status in L1 cache for the first minute' do
expect do
expect(described_class.l1_cache_backend).to receive(:fetch).once.and_call_original
expect(described_class.l2_cache_backend).not_to receive(:fetch)
expect(described_class.enabled?(flag)).to be_truthy
end.not_to exceed_query_limit(0)
end
it 'caches the status in L2 cache after 2 minutes' do
Timecop.travel 2.minutes do
expect do
expect(described_class.l1_cache_backend).to receive(:fetch).once.and_call_original
expect(described_class.l2_cache_backend).to receive(:fetch).once.and_call_original
expect(described_class.enabled?(flag)).to be_truthy
end.not_to exceed_query_limit(0)
end
end
it 'fetches the status after an hour' do
Timecop.travel 61.minutes do
expect do
expect(described_class.l1_cache_backend).to receive(:fetch).once.and_call_original
expect(described_class.l2_cache_backend).to receive(:fetch).once.and_call_original
expect(described_class.enabled?(flag)).to be_truthy
end.not_to exceed_query_limit(1)
end
end
end
2018-11-20 20:47:30 +05:30
context 'with an individual actor' do
CustomActor = Struct.new(:flipper_id)
let(:actor) { CustomActor.new(flipper_id: 'CustomActor:5') }
let(:another_actor) { CustomActor.new(flipper_id: 'CustomActor:10') }
before do
described_class.enable(:enabled_feature_flag, actor)
end
it 'returns true when same actor is informed' do
expect(described_class.enabled?(:enabled_feature_flag, actor)).to be_truthy
end
it 'returns false when different actor is informed' do
expect(described_class.enabled?(:enabled_feature_flag, another_actor)).to be_falsey
end
it 'returns false when no actor is informed' do
expect(described_class.enabled?(:enabled_feature_flag)).to be_falsey
end
end
end
describe '.disable?' do
it 'returns true for undefined feature' do
expect(described_class.disabled?(:some_random_feature_flag)).to be_truthy
end
it 'returns false for undefined feature with default_enabled' do
expect(described_class.disabled?(:some_random_feature_flag, default_enabled: true)).to be_falsey
end
it 'returns true for existing disabled feature in the database' do
described_class.disable(:disabled_feature_flag)
expect(described_class.disabled?(:disabled_feature_flag)).to be_truthy
end
it 'returns false for existing enabled feature in the database' do
described_class.enable(:enabled_feature_flag)
expect(described_class.disabled?(:enabled_feature_flag)).to be_falsey
end
end
2019-03-02 22:35:43 +05:30
2019-10-12 21:52:04 +05:30
describe '.remove' do
context 'for a non-persisted feature' do
it 'returns nil' do
expect(described_class.remove(:non_persisted_feature_flag)).to be_nil
end
end
context 'for a persisted feature' do
it 'returns true' do
described_class.enable(:persisted_feature_flag)
expect(described_class.remove(:persisted_feature_flag)).to be_truthy
end
end
end
2019-03-02 22:35:43 +05:30
describe Feature::Target do
describe '#targets' do
let(:project) { create(:project) }
2019-07-07 11:18:12 +05:30
let(:group) { create(:group) }
2019-03-02 22:35:43 +05:30
let(:user_name) { project.owner.username }
2019-07-07 11:18:12 +05:30
subject { described_class.new(user: user_name, project: project.full_path, group: group.full_path) }
2019-03-02 22:35:43 +05:30
it 'returns all found targets' do
expect(subject.targets).to be_an(Array)
2019-07-07 11:18:12 +05:30
expect(subject.targets).to eq([project.owner, project, group])
2019-03-02 22:35:43 +05:30
end
end
end
2017-09-10 17:25:29 +05:30
end