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require_relative '../../lib/repository_cache'
describe RepositoryCache, lib: true do
let(:backend) { double('backend').as_null_object }
let(:cache) { RepositoryCache.new('example', backend) }
describe '#cache_key' do
it 'includes the namespace' do
expect(cache.cache_key(:foo)).to eq 'foo:example'
end
end
describe '#expire' do
it 'expires the given key from the cache' do
cache.expire(:foo)
expect(backend).to have_received(:delete).with('foo:example')
end
end
describe '#fetch' do
it 'fetches the given key from the cache' do
cache.fetch(:bar)
expect(backend).to have_received(:fetch).with('bar:example')
end
it 'accepts a block' do
p = -> {}
cache.fetch(:baz, &p)
expect(backend).to have_received(:fetch).with('baz:example', &p)
end
end
end
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