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require 'spec_helper'
describe Gitlab::RepositoryCacheAdapter do
let(:project) { create(:project, :repository) }
let(:repository) { project.repository }
let(:cache) { repository.send(:cache) }
describe '#cache_method_output', :use_clean_rails_memory_store_caching do
let(:fallback) { 10 }
context 'with a non-existing repository' do
let(:project) { create(:project) } # No repository
subject do
repository.cache_method_output(:cats, fallback: fallback) do
repository.cats_call_stub
end
end
it 'returns the fallback value' do
expect(subject).to eq(fallback)
end
it 'avoids calling the original method' do
expect(repository).not_to receive(:cats_call_stub)
subject
end
end
context 'with a method throwing a non-existing-repository error' do
subject do
repository.cache_method_output(:cats, fallback: fallback) do
raise Gitlab::Git::Repository::NoRepository
end
end
it 'returns the fallback value' do
expect(subject).to eq(fallback)
end
it 'does not cache the data' do
subject
expect(repository.instance_variable_defined?(:@cats)).to eq(false)
expect(cache.exist?(:cats)).to eq(false)
end
end
context 'with an existing repository' do
it 'caches the output' do
object = double
expect(object).to receive(:number).once.and_return(10)
2.times do
val = repository.cache_method_output(:cats) { object.number }
expect(val).to eq(10)
end
expect(repository.send(:cache).exist?(:cats)).to eq(true)
expect(repository.instance_variable_get(:@cats)).to eq(10)
end
end
end
describe '#expire_method_caches' do
it 'expires the caches of the given methods' do
expect(cache).to receive(:expire).with(:rendered_readme)
expect(cache).to receive(:expire).with(:gitignore)
repository.expire_method_caches(%i(rendered_readme gitignore))
end
it 'does not expire caches for non-existent methods' do
expect(cache).not_to receive(:expire).with(:nonexistent)
expect(Rails.logger).to(
receive(:error).with("Requested to expire non-existent method 'nonexistent' for Repository"))
repository.expire_method_caches(%i(nonexistent))
end
end
end
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