step 1 in making unittest platform independent.

lib/unittest/html_print.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/**
- * A simple unit test library for running tests in a browser.
- */
-#library("unittest");
 
-#import("dart:html");
-
-#source("shared.dart");
-
-// TODO(rnystrom): Get rid of this if we get canonical closures for methods.
-EventListener _onErrorClosure;
-
-_platformInitialize() {
-  _onErrorClosure = (e) { _onError(e); };
-}
-
-_platformDefer(void callback()) {
-  window.setTimeout(callback, 0);
-}
-
-void _onError(e) {
- if (_currentTest < _tests.length) {
-    final testCase = _tests[_currentTest];
-    // TODO(vsm): figure out how to expose the stack trace here
-    // Currently e.message works in dartium, but not in dartc.
-    testCase.error('(DOM callback has errors) Caught ${e}', '');
-    _state = _UNCAUGHT_ERROR;
-    if (testCase.callbacks > 0) {
-      _currentTest++;
-      _testRunner();
-    }
-  }
-}
-
-/** Runs all queued tests, one at a time. */
-_platformStartTests() {
-  window.postMessage('unittest-suite-wait-for-done', '*');
-
-  // Listen for uncaught errors.
-  window.on.error.add(_onErrorClosure);
-}
-
-_platformCompleteTests(int testsPassed, int testsFailed, int testsErrors) {
-  window.on.error.remove(_onErrorClosure);
-
-  if (_isLayoutTest && testsPassed == _tests.length) {
+/** Creates a table showing tests results in HTML. */
+void _showResultsInPage(int testsPassed, int testsFailed, int testsErrors,
+    List<TestCase> results, isLayoutTest) {
+  if (isLayoutTest && testsPassed == results.length) {

[Bob Nystrom, 2012/04/10 00:30:31]

I would parenthesize the == expression.

[Siggi Cherem (dart-lang), 2012/04/10 01:05:28]

Done.

     document.body.innerHTML = "PASS";
   } else {
     var newBody = new StringBuffer();
     newBody.add("<table class='unittest-table'><tbody>");
-    newBody.add(testsPassed == _tests.length
+    newBody.add(testsPassed == results.length
         ? "<tr><td colspan='3' class='unittest-pass'>PASS</td></tr>"
         : "<tr><td colspan='3' class='unittest-fail'>FAIL</td></tr>");
 
-    for (final test_ in _tests) {
+    for (final test_ in results) {
       newBody.add(_toHtml(test_));
     }
 
-    if (testsPassed == _tests.length) {
+    if (testsPassed == results.length) {
       newBody.add("""
           <tr><td colspan='3' class='unittest-pass'>
             All ${testsPassed} tests passed
           </td></tr>""");
     } else {
       newBody.add("""
           <tr><td colspan='3'>Total
             <span class='unittest-pass'>${testsPassed} passed</span>,
             <span class='unittest-fail'>${testsFailed} failed</span>
             <span class='unittest-error'>${testsErrors} errors</span>
           </td></tr>""");
     }
     newBody.add("</tbody></table>");
     document.body.innerHTML = newBody.toString();
   }
-
-  window.postMessage('unittest-suite-done', '*');
 }
 
 String _toHtml(TestCase test_) {
   if (!test_.isComplete) {
     return '''
         <tr>
           <td>${test_.id}</td>
           <td class="unittest-error">NO STATUS</td>
           <td>Test did not complete</td>
         </tr>''';
@@ skipping 12 matching lines @@
   }
 
   return html;
 }
 
 //TODO(pquitslund): Move to a common lib
 String _htmlEscape(String string) {
   return string.replaceAll('&', '&amp;')
                .replaceAll('<','&lt;')
                .replaceAll('>','&gt;');
-}
+}