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listeners_helper.rb
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listeners_helper.rb
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shared_examples_for 'a listener to changes on a file-system' do
describe '#start' do
before do
subject.stub(:initialize_adapter) { adapter }
end
it 'starts the adapter' do
adapter.should_receive(:start)
subject.start
end
context 'with the blocking param set to false' do
it 'passes the blocking param to the adapter' do
adapter.should_receive(:start).with(false)
subject.start(false)
end
end
end
context 'with a started listener' do
before do
subject.start
end
describe '#stop' do
it "stops adapter" do
adapter.should_receive(:stop)
subject.stop
end
end
describe '#pause' do
it 'sets adapter.paused to true' do
adapter.should_receive(:paused=).with(true)
subject.pause
end
it 'returns the same listener to allow chaining' do
subject.pause.should equal subject
end
end
describe '#unpause' do
it 'sets adapter.paused to false' do
adapter.should_receive(:paused=).with(false)
subject.unpause
end
it 'returns the same listener to allow chaining' do
subject.unpause.should equal subject
end
end
describe '#paused?' do
it 'returns false when there is no adapter' do
subject.instance_variable_set(:@adapter, nil)
subject.should_not be_paused
end
it 'returns true when adapter is paused' do
adapter.should_receive(:paused) { true }
subject.should be_paused
end
it 'returns false when adapter is not paused' do
adapter.should_receive(:paused) { false }
subject.should_not be_paused
end
end
end
describe '#change' do
it 'sets the callback block' do
callback = lambda { |modified, added, removed| }
subject.change(&callback)
subject.instance_variable_get(:@block).should eq callback
end
it 'returns the same listener to allow chaining' do
subject.change(&Proc.new{}).should equal subject
end
end
describe '#ignore' do
it 'returns the same listener to allow chaining' do
subject.ignore('some_directory').should equal subject
end
end
describe '#ignore!' do
it 'returns the same listener to allow chaining' do
subject.ignore!('some_directory').should equal subject
end
end
describe '#filter' do
it 'returns the same listener to allow chaining' do
subject.filter(/\.txt$/).should equal subject
end
end
describe '#filter!' do
it 'returns the same listener to allow chaining' do
subject.filter!(/\.txt$/).should equal subject
end
end
describe '#latency' do
it 'sets the latency to @adapter_options' do
subject.latency(0.7)
subject.instance_variable_get(:@adapter_options).should eq(:latency => 0.7)
end
it 'returns the same listener to allow chaining' do
subject.latency(0.7).should equal subject
end
end
describe '#force_polling' do
it 'sets force_polling to @adapter_options' do
subject.force_polling(false)
subject.instance_variable_get(:@adapter_options).should eq(:force_polling => false)
end
it 'returns the same listener to allow chaining' do
subject.force_polling(true).should equal subject
end
end
describe '#relative_paths' do
it 'sets the relative paths option for paths in the callback' do
subject.relative_paths(true)
subject.instance_variable_get(:@use_relative_paths).should be_true
end
it 'returns the same listener to allow chaining' do
subject.relative_paths(true).should equal subject
end
end
describe '#polling_fallback_message' do
it 'sets custom polling fallback message to @adapter_options' do
subject.polling_fallback_message('custom message')
subject.instance_variable_get(:@adapter_options).should eq(:polling_fallback_message => 'custom message')
end
it 'sets polling fallback message to false in @adapter_options' do
subject.polling_fallback_message(false)
subject.instance_variable_get(:@adapter_options).should eq(:polling_fallback_message => false)
end
it 'returns the same listener to allow chaining' do
subject.polling_fallback_message('custom message').should equal subject
end
end
end