require 'abstract_unit'

module RenderBody
  class MinimalController < ActionController::Metal
    include AbstractController::Rendering
    include ActionController::Rendering

    def index
      render body: "Hello World!"
    end
  end

  class SimpleController < ActionController::Base
    self.view_paths = [ActionView::FixtureResolver.new]

    def index
      render body: "hello david"
    end
  end

  class WithLayoutController < ::ApplicationController
    self.view_paths = [ActionView::FixtureResolver.new(
      "layouts/application.erb" => "<%= yield %>, I'm here!",
      "layouts/greetings.erb"   => "<%= yield %>, I wish thee well.",
      "layouts/ivar.erb"        => "<%= yield %>, <%= @ivar %>"
    )]

    def index
      render body: "hello david"
    end

    def custom_code
      render body: "hello world", status: 404
    end

    def with_custom_code_as_string
      render body: "hello world", status: "404 Not Found"
    end

    def with_nil
      render body: nil
    end

    def with_nil_and_status
      render body: nil, status: 403
    end

    def with_false
      render body: false
    end

    def with_layout_true
      render body: "hello world", layout: true
    end

    def with_layout_false
      render body: "hello world", layout: false
    end

    def with_layout_nil
      render body: "hello world", layout: nil
    end

    def with_custom_layout
      render body: "hello world", layout: "greetings"
    end

    def with_ivar_in_layout
      @ivar = "hello world"
      render body: "hello world", layout: "ivar"
    end
  end

  class RenderBodyTest < Rack::TestCase
    test "rendering body from a minimal controller" do
      get "/render_body/minimal/index"
      assert_body "Hello World!"
      assert_status 200
    end

    test "rendering body from an action with default options renders the body with the layout" do
      with_routing do |set|
        set.draw { get ':controller', action: 'index' }

        get "/render_body/simple"
        assert_body "hello david"
        assert_status 200
      end
    end

    test "rendering body from an action with default options renders the body without the layout" do
      with_routing do |set|
        set.draw { get ':controller', action: 'index' }

        get "/render_body/with_layout"

        assert_body "hello david"
        assert_status 200
      end
    end

    test "rendering body, while also providing a custom status code" do
      get "/render_body/with_layout/custom_code"

      assert_body "hello world"
      assert_status 404
    end

    test "rendering body with nil returns an empty body padded for Safari" do
      get "/render_body/with_layout/with_nil"

      assert_body " "
      assert_status 200
    end

    test "Rendering body with nil and custom status code returns an empty body padded for Safari and the status" do
      get "/render_body/with_layout/with_nil_and_status"

      assert_body " "
      assert_status 403
    end

    test "rendering body with false returns the string 'false'" do
      get "/render_body/with_layout/with_false"

      assert_body "false"
      assert_status 200
    end

    test "rendering body with layout: true" do
      get "/render_body/with_layout/with_layout_true"

      assert_body "hello world, I'm here!"
      assert_status 200
    end

    test "rendering body with layout: 'greetings'" do
      get "/render_body/with_layout/with_custom_layout"

      assert_body "hello world, I wish thee well."
      assert_status 200
    end

    test "rendering body with layout: false" do
      get "/render_body/with_layout/with_layout_false"

      assert_body "hello world"
      assert_status 200
    end

    test "rendering body with layout: nil" do
      get "/render_body/with_layout/with_layout_nil"

      assert_body "hello world"
      assert_status 200
    end

    test "rendering from minimal controller returns response with no content type" do
      get "/render_body/minimal/index"

      assert_header_no_content_type
    end

    test "rendering from normal controller returns response with no content type" do
      get "/render_body/simple/index"

      assert_header_no_content_type
    end

    def assert_header_no_content_type
      assert_not response.headers.has_key?("Content-Type"),
        %(Expect response not to have Content-Type header, got "#{response.headers["Content-Type"]}")
    end
  end
end