assert_dom_equal "<a title=\"The File:Test.jpg item on Wikimedia Commons\" href=\"//commons.wikimedia.org/wiki/File:Test.jpg?uselang=en\">File:Test.jpg</a>", html
html = format_value("colour", "#f00")
assert_dom_equal "<a title=\"The File:Test.jpg item on Wikimedia Commons\" href=\"//commons.wikimedia.org/wiki/File:Test.jpg?uselang=en\">File:Test.jpg</a>", html
html = format_value("colour", "#f00")