require 'spec_helper'
#require 'flirt/flirt_test_classes'

describe Flirt::Listener do
    before(:each) do
        Flirt.enable
    end

    describe "when included in an instance" do

        let(:event)               { :grabbed_coin }

        let(:callback_name)       { :increase_score }

        let(:event_data)          { { value: 100 } }

        let(:test_class)          { Class.new }

        let(:test_instance)       { test_class.new }


        before(:each) do
            test_class.class_eval do
                include Flirt::Listener
            end

        end


        it "subscribes to an event with #subscribe_to" do
            block_event = event
            block_callback_name = callback_name
            expect(Flirt).to receive(:subscribe).with(test_instance, event, { with: callback_name })
            test_instance.instance_eval do
                subscribe_to block_event, with: block_callback_name
            end

        end


        it "unsubscribes from an event with #unsubscribe_from" do
            block_event = event
            block_callback_name = callback_name
            expect(Flirt).to receive(:unsubscribe).with(test_instance, event, { with: callback_name })
            test_instance.instance_eval do
                unsubscribe_from block_event, with: block_callback_name
            end

        end

    end


    describe "when included in a class" do

        let(:event)               { :event_name }

        let(:callback_name)       { :callback_name }

        let(:event_data)          { { value: 100 } }

        let(:test_class)          { Class.new }


        it "subscribes to an event with #subscribe_to" do
            block_event = event
            block_callback_name = callback_name
            expect(Flirt).to receive(:subscribe).with(test_class, event, { with: callback_name })
            test_class.class_eval do
                extend Flirt::Listener
                subscribe_to block_event, with: block_callback_name
            end

        end


        it "unsubscribes from an event with #unsubscribe_from" do
            block_event = event
            block_callback_name = callback_name
            expect(Flirt).to receive(:unsubscribe).with(test_class, event, { with: callback_name })
            test_class.class_eval do
                extend Flirt::Listener
                unsubscribe_from block_event, with: block_callback_name
            end

        end

    end

end