require 'spec_helper'
require 'pact/verification_task'

module Pact
	describe VerificationTask do
		before :all do
			@support_file = '/custom/path/support_file.rb'
			@pact_uri = 'http://example.org/pact.json'
			@task_name = 'pact:verify:pact_rake_spec'
			@task_name_with_explict_support_file = 'pact:verify:pact_rake_spec_with_explict_support_file'
			@consumer = 'some-consumer'

			VerificationTask.new(:pact_rake_spec_with_explict_support_file) do | pact |
				pact.uri @pact_uri, support_file: @support_file
			end

			VerificationTask.new(:pact_rake_spec) do | pact |
				pact.uri @pact_uri
			end
		end

		before do
			VerificationTask.any_instance.stub(:publish_report)
			Provider::PactSpecRunner.stub(:new).with(consumer_contract).and_return(pact_spec_runner)
		end

		let(:pact_spec_runner) { double('PactSpecRunner', :run => exit_code, :output => nil)}
		let(:exit_code) {0}
		let(:consumer_contract) { [ uri: @pact_uri, support_file: nil ] }


		describe '.initialize' do
			context 'with an explict support_file' do
				it 'creates the tasks' do
					Rake::Task.tasks.should include_task @task_name
				end
			end
			context 'with no explict support_file' do
				it 'creates the tasks' do
					Rake::Task.tasks.should include_task @task_name_with_explict_support_file
				end
			end
		end

		describe 'execute' do


			context "with no explict support file " do
				it 'verifies the pacts using PactSpecRunner' do
					Rake::Task[@task_name].execute
				end
			end

			context "with an explict support_file" do
				let(:consumer_contract) { [ uri: @pact_uri, support_file: @support_file] }
				it 'verifies the pacts using PactSpecRunner' do
					Rake::Task[@task_name_with_explict_support_file].execute
				end
			end

			context 'when all specs pass' do

				it 'does not raise an exception' do
					Rake::Task[@task_name].execute
				end
			end

			context 'when one or more specs fail' do

				let(:exit_code) {1}

				it 'raises an exception' do
					$stderr.should_receive(:puts) #Confusing if this shows on the screen!
					expect { Rake::Task[@task_name].execute }.to raise_error RuntimeError
				end

			end
		end
	end
end

RSpec::Matchers.define :include_task do |expected|
	match do |actual|
	  actual.any? { |task| task.name == expected }
	end
end