require 'test_helper'

class IterationsControllerTest < ActionController::TestCase

  context "The IterationsController" do

    setup do
      @user = User.make
    end

    context "when there are no iterations yet" do

      should "get index" do
        login_as(@user)
        get :index
        assert_response :success
        assert_not_nil assigns(:iterations)
      end

    end

    context "when at least one iteration exists" do

      setup do
        login_as(@user)
        @iteration = Iteration.make
      end

      should "get index" do
        get :index
        assert_response :success
        assert_not_nil assigns(:iterations)
      end

      should "get edit" do
        get :edit, :id => @iteration.to_param
        assert_response :success
        assert assigns(:releases)
      end

      should "get new" do
        get :new
        assert_response :success
        assert assigns(:releases)
      end

      should "show iteration" do
        get :show, :id => @iteration.to_param
        assert_response :success
      end

      should "destroy iteration" do
        assert_difference('Iteration.count', -1) do
          delete :destroy, :id => @iteration.to_param
        end

        assert_redirected_to iterations_path
      end

      context "creating an iteration" do

        context "with valid params" do
          setup do
            login_as(@user)
            assert_difference("Iteration.count") do
              post :create, :iteration => Iteration.plan
            end
          end

          should "not be assigned to a release" do
            assert assigns(:iteration).release.nil?
          end

          should "redirect to show" do
            assert_redirected_to iterations_path
          end

          context "including a release_id" do
            setup do
              assert_difference("Iteration.count") do
                post :create, :iteration => Iteration.plan.merge(:release_id => Release.make.to_param)
              end
            end

            should "be assigned to a release" do
              assert assigns(:iteration).release
            end
          end

        end

        context "with invalid params" do
          setup do
            login_as(@user)
            assert_no_difference("Iteration.count") do
              post :create, :iteration => {}
            end
          end

          should "redisplay" do
            assert_template 'new'
          end

          should "retrieve all releases" do
            assert assigns(:releases)
          end

        end
      end

      context "updating an iteration" do
        context "with valid parameters" do
          setup do
            login_as(@user)
            assert_no_difference("Iteration.count") do
              put :update,{ :id => @iteration.to_param,  :iteration => {:name => "bar"}}
            end
          end

          should "redirect to show" do
            assert_redirected_to iterations_path
          end

          context "including a release_id" do
            setup do
              put :update, :id => @iteration.to_param, :iteration => {:release_id => Release.make.to_param}
            end

            should "be assigned to a release" do
              assert assigns(:iteration).release
            end
          end

        end

        context "with invalid parameters" do
          setup do
            put :update, :id => @iteration.id, :iteration => {:name => ""}
          end

          should "redisplay the edit template" do
            assert_template "edit"
          end

          should "retrieve all releases" do
            assert assigns(:releases)
          end
        end
      end
    end

  end

end