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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::ReactiveCacheSetCache, :clean_gitlab_redis_cache do
let_it_be(:project) { create(:project) }
let(:cache_prefix) { 'cache_prefix' }
let(:expires_in) { 10.minutes }
let(:cache) { described_class.new(expires_in: expires_in) }
describe '#cache_key' do
subject { cache.cache_key(cache_prefix) }
it 'includes the suffix' do
expect(subject).to eq "#{Gitlab::Redis::Cache::CACHE_NAMESPACE}:#{cache_prefix}:set"
end
end
describe '#read' do
subject { cache.read(cache_prefix) }
it { is_expected.to be_empty }
context 'after item added' do
before do
cache.write(cache_prefix, 'test_item')
end
it { is_expected.to contain_exactly('test_item') }
end
end
describe '#write' do
it 'writes the value to the cache' do
cache.write(cache_prefix, 'test_item')
expect(cache.read(cache_prefix)).to contain_exactly('test_item')
end
it 'sets the expiry of the set' do
cache.write(cache_prefix, 'test_item')
expect(cache.ttl(cache_prefix)).to be_within(1).of(expires_in.seconds)
end
end
describe '#clear_cache!', :use_clean_rails_redis_caching do
it 'deletes the cached items' do
# Cached key and value
Rails.cache.write('test_item', 'test_value')
# Add key to set
cache.write(cache_prefix, 'test_item')
expect(cache.read(cache_prefix)).to contain_exactly('test_item')
cache.clear_cache!(cache_prefix)
expect(cache.read(cache_prefix)).to be_empty
end
context 'when key size is large' do
before do
1001.times { |i| cache.write(cache_prefix, i) }
end
it 'sends multiple pipelines of 1000 unlinks' do
Gitlab::Redis::Cache.with do |redis|
if Gitlab::Redis::ClusterUtil.cluster?(redis)
expect(redis).to receive(:pipelined).at_least(2).and_call_original
else
expect(redis).to receive(:pipelined).once.and_call_original
end
end
cache.clear_cache!(cache_prefix)
end
end
end
describe '#include?' do
subject { cache.include?(cache_prefix, 'test_item') }
it { is_expected.to be(false) }
context 'item added' do
before do
cache.write(cache_prefix, 'test_item')
end
it { is_expected.to be(true) }
end
end
describe 'count' do
subject { cache.count(cache_prefix) }
it { is_expected.to be(0) }
context 'item added' do
before do
cache.write(cache_prefix, 'test_item')
end
it { is_expected.to be(1) }
end
end
end
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