servo/tests/wpt/web-platform-tests/webgl/tools/js-test-pre.patch

--- resources/js-test-pre.js	2015-06-18 23:26:41.217622000 +0200
+++ ../conformance-1.0.3/resources/js-test-pre.js	2015-12-30 19:20:27.852467185 +0100
@@ -71,9 +71,14 @@
   }
 }
 
+var WPT_TEST_ID = 0;
 function reportTestResultsToHarness(success, msg) {
   if (window.parent.webglTestHarness) {
     window.parent.webglTestHarness.reportResults(window.location.pathname, success, msg);
+  } else if (window.test) { // WPT test harness
+    test(function () {
+      assert_true(success, msg);
+    }, "WebGL test #" + (WPT_TEST_ID++) + ": " + msg);
   }
 }
 
@@ -92,7 +97,7 @@
       window.console.log(msg);
 }
 
-var _jsTestPreVerboseLogging = false;
+var _jsTestPreVerboseLogging = true;
 
 function enableJSTestPreVerboseLogging()
 {
@@ -105,31 +110,18 @@
     if (msg === undefined) {
       msg = document.title;
     }
-    // For MSIE 6 compatibility
-    var span = document.createElement("span");
-    span.innerHTML = '<p>' + msg + '</p><p>On success, you will see a series of "<span class="pass">PASS</span>" messages, followed by "<span class="pass">TEST COMPLETE</span>".</p>';
-    var description = document.getElementById("description");
-    if (description.firstChild)
-        description.replaceChild(span, description.firstChild);
-    else
-        description.appendChild(span);
-    if (_jsTestPreVerboseLogging) {
-        _logToConsole(msg);
-    }
+    _logToConsole("DESCRIPTION: " + msg);
 }
 
 function _addSpan(contents)
 {
-    var span = document.createElement("span");
-    document.getElementById("console").appendChild(span); // insert it first so XHTML knows the namespace
-    span.innerHTML = contents + '<br />';
 }
 
 function debug(msg)
 {
     _addSpan(msg);
     if (_jsTestPreVerboseLogging) {
-	_logToConsole(msg);
+        _logToConsole(msg);
     }
 }
 
@@ -143,7 +135,7 @@
     reportTestResultsToHarness(true, msg);
     _addSpan('<span><span class="pass">PASS</span> ' + escapeHTML(msg) + '</span>');
     if (_jsTestPreVerboseLogging) {
-	_logToConsole('PASS ' + msg);
+        _logToConsole('PASS ' + msg);
     }
 }