gitlab-org--gitlab-foss/spec/lib/gitlab/repository_set_cache_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::RepositorySetCache, :clean_gitlab_redis_cache do
let_it_be(:project) { create(:project) }
let(:repository) { project.repository }
let(:namespace) { "#{repository.full_path}:#{project.id}" }
let(:cache) { described_class.new(repository) }
describe '#cache_key' do
subject { cache.cache_key(:foo) }
shared_examples 'cache_key examples' do
it 'includes the namespace' do
is_expected.to eq("foo:#{namespace}:set")
end
context 'with a given namespace' do
let(:extra_namespace) { 'my:data' }
let(:cache) { described_class.new(repository, extra_namespace: extra_namespace) }
it 'includes the full namespace' do
is_expected.to eq("foo:#{namespace}:#{extra_namespace}:set")
end
end
end
describe 'project repository' do
it_behaves_like 'cache_key examples' do
let(:repository) { project.repository }
end
end
describe 'personal snippet repository' do
let_it_be(:personal_snippet) { create(:personal_snippet) }
let(:namespace) { repository.full_path }
it_behaves_like 'cache_key examples' do
let(:repository) { personal_snippet.repository }
end
end
describe 'project snippet repository' do
let_it_be(:project_snippet) { create(:project_snippet, project: project) }
it_behaves_like 'cache_key examples' do
let(:repository) { project_snippet.repository }
end
end
end
describe '#expire' do
subject { cache.expire(*keys) }
before do
cache.write(:foo, ['value'])
cache.write(:bar, ['value2'])
end
it 'actually wrote the values' do
expect(cache.read(:foo)).to contain_exactly('value')
expect(cache.read(:bar)).to contain_exactly('value2')
end
context 'single key' do
let(:keys) { %w(foo) }
it { is_expected.to eq(1) }
it 'deletes the given key from the cache' do
subject
expect(cache.read(:foo)).to be_empty
end
end
context 'multiple keys' do
let(:keys) { %w(foo bar) }
it { is_expected.to eq(2) }
it 'deletes the given keys from the cache' do
subject
expect(cache.read(:foo)).to be_empty
expect(cache.read(:bar)).to be_empty
end
end
context 'no keys' do
let(:keys) { [] }
it { is_expected.to eq(0) }
end
context "unlink isn't supported" do
before do
allow_any_instance_of(Redis).to receive(:unlink) { raise ::Redis::CommandError }
end
it 'still deletes the given key' do
expect(cache.expire(:foo)).to eq(1)
expect(cache.read(:foo)).to be_empty
end
it 'logs the failure' do
expect(Gitlab::ErrorTracking).to receive(:log_exception)
cache.expire(:foo)
end
end
end
describe '#exist?' do
it 'checks whether the key exists' do
expect(cache.exist?(:foo)).to be(false)
cache.write(:foo, ['value'])
expect(cache.exist?(:foo)).to be(true)
end
end
describe '#fetch' do
let(:blk) { -> { ['block value'] } }
subject { cache.fetch(:foo, &blk) }
it 'fetches the key from the cache when filled' do
cache.write(:foo, ['value'])
is_expected.to contain_exactly('value')
end
it 'writes the value of the provided block when empty' do
cache.expire(:foo)
is_expected.to contain_exactly('block value')
expect(cache.read(:foo)).to contain_exactly('block value')
end
end
describe '#include?' do
it 'checks inclusion in the Redis set' do
cache.write(:foo, ['value'])
expect(cache.include?(:foo, 'value')).to be(true)
expect(cache.include?(:foo, 'bar')).to be(false)
end
end
end