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# frozen_string_literal: true
RSpec.shared_examples_for 'object cache helper' do
it { is_expected.to be_a(Gitlab::Json::PrecompiledJson) }
it "uses the presenter" do
expect(presenter).to receive(:represent).with(presentable, project: project)
subject
end
it "is valid JSON" do
parsed = Gitlab::Json.parse(subject.to_s)
expect(parsed).to be_a(Hash)
expect(parsed["id"]).to eq(presentable.id)
end
it "fetches from the cache" do
expect(instance.cache).to receive(:fetch).with("#{presenter.class.name}:#{presentable.cache_key}:#{user.cache_key}", expires_in: described_class::DEFAULT_EXPIRY).once
subject
end
context "when a cache context is supplied" do
before do
kwargs[:cache_context] = -> (item) { item.project.cache_key }
end
it "uses the context to augment the cache key" do
expect(instance.cache).to receive(:fetch).with("#{presenter.class.name}:#{presentable.cache_key}:#{project.cache_key}", expires_in: described_class::DEFAULT_EXPIRY).once
subject
end
end
context "when expires_in is supplied" do
it "sets the expiry when accessing the cache" do
kwargs[:expires_in] = 7.days
expect(instance.cache).to receive(:fetch).with("#{presenter.class.name}:#{presentable.cache_key}:#{user.cache_key}", expires_in: 7.days).once
subject
end
end
end
RSpec.shared_examples_for 'collection cache helper' do
it { is_expected.to be_an(Gitlab::Json::PrecompiledJson) }
it "uses the presenter" do
presentable.each do |item|
expect(presenter).to receive(:represent).with(item, project: project)
end
subject
end
it "is valid JSON" do
parsed = Gitlab::Json.parse(subject.to_s)
expect(parsed).to be_an(Array)
presentable.each_with_index do |item, i|
expect(parsed[i]["id"]).to eq(item.id)
end
end
it "fetches from the cache" do
keys = presentable.map { |item| "#{presenter.class.name}:#{item.cache_key}:#{user.cache_key}" }
expect(instance.cache).to receive(:fetch_multi).with(*keys, expires_in: described_class::DEFAULT_EXPIRY).once.and_call_original
subject
end
context "when a cache context is supplied" do
before do
kwargs[:cache_context] = -> (item) { item.project.cache_key }
end
it "uses the context to augment the cache key" do
keys = presentable.map { |item| "#{presenter.class.name}:#{item.cache_key}:#{project.cache_key}" }
expect(instance.cache).to receive(:fetch_multi).with(*keys, expires_in: described_class::DEFAULT_EXPIRY).once.and_call_original
subject
end
end
context "expires_in is supplied" do
it "sets the expiry when accessing the cache" do
keys = presentable.map { |item| "#{presenter.class.name}:#{item.cache_key}:#{user.cache_key}" }
kwargs[:expires_in] = 7.days
expect(instance.cache).to receive(:fetch_multi).with(*keys, expires_in: 7.days).once.and_call_original
subject
end
end
end
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