require "abstract_unit"

module ContentType
  class BaseController < ActionController::Base
    def index
      render body: "Hello world!"
    end

    def set_on_response_obj
      response.content_type = Mime[:rss]
      render body: "Hello world!"
    end

    def set_on_render
      render body: "Hello world!", content_type: Mime[:rss]
    end
  end

  class ImpliedController < ActionController::Base
    # Template's mime type is used if no content_type is specified

    self.view_paths = [ActionView::FixtureResolver.new(
      "content_type/implied/i_am_html_erb.html.erb"         => "Hello world!",
      "content_type/implied/i_am_xml_erb.xml.erb"           => "<xml>Hello world!</xml>",
      "content_type/implied/i_am_html_builder.html.builder" => "xml.p 'Hello'",
      "content_type/implied/i_am_xml_builder.xml.builder"   => "xml.awesome 'Hello'"
    )]
  end

  class CharsetController < ActionController::Base
    def set_on_response_obj
      response.charset = "utf-16"
      render body: "Hello world!"
    end

    def set_as_nil_on_response_obj
      response.charset = nil
      render body: "Hello world!"
    end
  end

  class ExplicitContentTypeTest < Rack::TestCase
    test "default response is text/plain and UTF8" do
      with_routing do |set|
        set.draw do
          ActiveSupport::Deprecation.silence do
            get ":controller", action: "index"
          end
        end

        get "/content_type/base"

        assert_body "Hello world!"
        assert_header "Content-Type", "text/plain; charset=utf-8"
      end
    end

    test "setting the content type of the response directly on the response object" do
      get "/content_type/base/set_on_response_obj"

      assert_body "Hello world!"
      assert_header "Content-Type", "application/rss+xml; charset=utf-8"
    end

    test "setting the content type of the response as an option to render" do
      get "/content_type/base/set_on_render"

      assert_body "Hello world!"
      assert_header "Content-Type", "application/rss+xml; charset=utf-8"
    end
  end

  class ImpliedContentTypeTest < Rack::TestCase
    test "sets Content-Type as text/html when rendering *.html.erb" do
      get "/content_type/implied/i_am_html_erb"

      assert_header "Content-Type", "text/html; charset=utf-8"
    end

    test "sets Content-Type as application/xml when rendering *.xml.erb" do
      get "/content_type/implied/i_am_xml_erb", params: { "format" => "xml" }

      assert_header "Content-Type", "application/xml; charset=utf-8"
    end

    test "sets Content-Type as text/html when rendering *.html.builder" do
      get "/content_type/implied/i_am_html_builder"

      assert_header "Content-Type", "text/html; charset=utf-8"
    end

    test "sets Content-Type as application/xml when rendering *.xml.builder" do
      get "/content_type/implied/i_am_xml_builder", params: { "format" => "xml" }

      assert_header "Content-Type", "application/xml; charset=utf-8"
    end
  end

  class ExplicitCharsetTest < Rack::TestCase
    test "setting the charset of the response directly on the response object" do
      get "/content_type/charset/set_on_response_obj"

      assert_body   "Hello world!"
      assert_header "Content-Type", "text/plain; charset=utf-16"
    end

    test "setting the charset of the response as nil directly on the response object" do
      get "/content_type/charset/set_as_nil_on_response_obj"

      assert_body   "Hello world!"
      assert_header "Content-Type", "text/plain; charset=utf-8"
    end
  end
end
