Bug 1629304 [wpt PR 22877] - [cssom] Test that CSSStyleDeclaration.cs…

…sText returns the empty string for computed style., a=testonly

Automatic update from web-platform-tests
[cssom] Test that CSSStyleDeclaration.cssText returns the empty string for computed style.

Test for w3c/csswg-drafts#1033 / w3c/csswg-drafts#4945.

--

wpt-commits: 3b7c757d4483ff89cce443b29a68b68c3defcd96
wpt-pr: 22877

testing/web-platform/tests/css/cssom/cssstyledeclaration-csstext.html

@@ -97,6 +97,18 @@
 
         }, 'invalid property does not appear');
 
+        // https://github.com/w3c/csswg-drafts/issues/1033
+        test(function() {
+            var elm = newElm();
+            var style = elm.style;
+
+            style.color = 'red';
+            style.unknown = 'unknown';
+            style.fontSize = '10pt';
+
+            assert_not_equals(getComputedStyle(elm).length, 0, "Should have a style");
+            assert_equals(getComputedStyle(elm).cssText, "", "cssText is empty");
+        }, 'cssText on computed style declaration returns the empty string');
     </script>
     </body>
 </html>