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lifecycle_spec.rb
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lifecycle_spec.rb
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require 'spec_helper'
describe Delayed::Lifecycle do
let(:lifecycle) { Delayed::Lifecycle.new }
let(:callback) { lambda {|*args|} }
let(:arguments) { [1] }
let(:behavior) { mock(Object, :before! => nil, :after! => nil, :inside! => nil) }
let(:wrapped_block) { Proc.new { behavior.inside! } }
describe "before callbacks" do
before(:each) do
lifecycle.before(:execute, &callback)
end
it 'should execute before wrapped block' do
callback.should_receive(:call).with(*arguments).ordered
behavior.should_receive(:inside!).ordered
lifecycle.run_callbacks :execute, *arguments, &wrapped_block
end
end
describe "after callbacks" do
before(:each) do
lifecycle.after(:execute, &callback)
end
it 'should execute after wrapped block' do
behavior.should_receive(:inside!).ordered
callback.should_receive(:call).with(*arguments).ordered
lifecycle.run_callbacks :execute, *arguments, &wrapped_block
end
end
describe "around callbacks" do
before(:each) do
lifecycle.around(:execute) do |*args, &block|
behavior.before!
block.call(*args)
behavior.after!
end
end
it 'should before and after wrapped block' do
behavior.should_receive(:before!).ordered
behavior.should_receive(:inside!).ordered
behavior.should_receive(:after!).ordered
lifecycle.run_callbacks :execute, *arguments, &wrapped_block
end
it "should execute multiple callbacks in order" do
behavior.should_receive(:one).ordered
behavior.should_receive(:two).ordered
behavior.should_receive(:three).ordered
lifecycle.around(:execute) { |*args, &block| behavior.one; block.call(*args) }
lifecycle.around(:execute) { |*args, &block| behavior.two; block.call(*args) }
lifecycle.around(:execute) { |*args, &block| behavior.three; block.call(*args) }
lifecycle.run_callbacks(:execute, *arguments, &wrapped_block)
end
end
it "should raise if callback is executed with wrong number of parameters" do
lifecycle.before(:execute, &callback)
expect { lifecycle.run_callbacks(:execute, 1,2,3) {} }.to raise_error(ArgumentError, /1 parameter/)
end
end