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require 'vcr/cassette/persisters'
module VCR
class Cassette
describe Persisters do
describe "#[]=" do
context 'when there is already a persister registered for the given name' do
before(:each) do
subject[:foo] = :old_persister
allow(subject).to receive :warn
end
it 'overrides the existing persister' do
subject[:foo] = :new_persister
expect(subject[:foo]).to be(:new_persister)
end
it 'warns that there is a name collision' do
expect(subject).to receive(:warn).with(
/WARNING: There is already a VCR cassette persister registered for :foo\. Overriding it/
)
subject[:foo] = :new_persister
end
end
end
describe "#[]" do
it 'raises an error when given an unrecognized persister name' do
expect { subject[:foo] }.to raise_error(ArgumentError)
end
it 'returns the named persister' do
expect(subject[:file_system]).to be(VCR::Cassette::Persisters::FileSystem)
end
end
end
end
end
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