require "abstract_unit" class HTMLTest < ActiveSupport::TestCase test "formats returns symbol for recognized MIME type" do assert_equal [:html], ActionView::Template::HTML.new("", :html).formats end test "formats returns string for recognized MIME type when MIME does not have symbol" do foo = Mime::Type.lookup("foo") assert_nil foo.to_sym assert_equal ["foo"], ActionView::Template::HTML.new("", foo).formats end test "formats returns string for unknown MIME type" do assert_equal ["foo"], ActionView::Template::HTML.new("", "foo").formats end end