--- /dev/null
+module ActionController
+ module Assertions
+ module DomAssertions
+ # Test two HTML strings for equivalency (e.g., identical up to reordering of attributes)
+ #
+ # ==== Examples
+ #
+ # # assert that the referenced method generates the appropriate HTML string
+ # assert_dom_equal '<a href="http://www.example.com">Apples</a>', link_to("Apples", "http://www.example.com")
+ #
+ def assert_dom_equal(expected, actual, message = "")
+ clean_backtrace do
+ expected_dom = HTML::Document.new(expected).root
+ actual_dom = HTML::Document.new(actual).root
+ full_message = build_message(message, "<?> expected to be == to\n<?>.", expected_dom.to_s, actual_dom.to_s)
+
+ assert_block(full_message) { expected_dom == actual_dom }
+ end
+ end
+
+ # The negated form of +assert_dom_equivalent+.
+ #
+ # ==== Examples
+ #
+ # # assert that the referenced method does not generate the specified HTML string
+ # assert_dom_not_equal '<a href="http://www.example.com">Apples</a>', link_to("Oranges", "http://www.example.com")
+ #
+ def assert_dom_not_equal(expected, actual, message = "")
+ clean_backtrace do
+ expected_dom = HTML::Document.new(expected).root
+ actual_dom = HTML::Document.new(actual).root
+ full_message = build_message(message, "<?> expected to be != to\n<?>.", expected_dom.to_s, actual_dom.to_s)
+
+ assert_block(full_message) { expected_dom != actual_dom }
+ end
+ end
+ end
+ end
+end