Added support for layout render tests. These use expected values for the text render output from Du…

utils/testrunner/dart_wrap_task.dart

 // Copyright (c) 2012, 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.
 
 /**
  * The DartWrapTask generates a Dart wrapper for a test file, that has a
  * test Configuration customized for the options specified by the user.
  */
 class DartWrapTask extends PipelineTask {
   final String _sourceFileTemplate;
   final String _tempDartFileTemplate;
 
   DartWrapTask(this._sourceFileTemplate, this._tempDartFileTemplate);
 
   void execute(Path testfile, List stdout, List stderr, bool logging,
               Function exitHandler) {
     // Get the source test file and canonicalize the path.
     var sourceName = makePathAbsolute(
         expandMacros(_sourceFileTemplate, testfile));
     // Get the destination file.
     var destFile = expandMacros(_tempDartFileTemplate, testfile);
 
+    var p = new Path(sourceName);
+    if (isLayoutRenderTest(sourceName) || config.generateRenders) {
+      makeLayoutTestWrapper(sourceName, destFile, p.filenameWithoutExtension);
+      exitHandler(0);
+      return;
+    }
+
     // Working buffer for the Dart wrapper.
     StringBuffer sbuf = new StringBuffer();
 
     // Add the common header stuff.
-    var p = new Path(sourceName);
     sbuf.add(directives(p.filenameWithoutExtension,
                         config.unittestPath,
                         sourceName));
 
     // Add the test configuration and determine the action function.
     var action;
     if (config.listTests) {
       action = 'listTests';
       sbuf.add(barebonesConfig());
       sbuf.add(listTestsFunction);
@@ skipping 55 matching lines @@
     // Save the Dart file.
     createFile(destFile, sbuf.toString());
     exitHandler(0);
   }
 
   void cleanup(Path testfile, List stdout, List stderr,
                bool logging, bool keepFiles) {
     deleteFiles([_tempDartFileTemplate], testfile, logging, keepFiles, stdout);
   }
 
+  void makeLayoutTestWrapper(String sourceName, String destFile,
+                             String libraryName) {
+    StringBuffer sbuf = new StringBuffer();
+    var cfg = config.unittestPath.
+        replaceAll('unittest.dart', 'html_layout_config.dart');
+    sbuf.add("""
+#library('$libraryName');
+#import('dart:math');
+#import('dart:isolate');
+#import('dart:html');
+#import('${config.unittestPath}', prefix:'unittest');
+#import('$cfg', prefix:'unittest');
+#import('$sourceName', prefix: 'test');
+""");
+    // Add the filter, if applicable.
+    if (config.filtering) {
+      if (config.includeFilter.length > 0) {
+        sbuf.add(filterTestFunction(config.includeFilter, 'true'));
+      } else {
+        sbuf.add(filterTestFunction(config.excludeFilter, 'false'));
+      }
+    }
+    sbuf.add("""
+main() {
+unittest.groupSep = '###';
+unittest.useHtmlLayoutConfiguration();
+unittest.group('', test.main);
+${config.filtering ? 'unittest.filterTests(filterTest);' : ''}
+if (window.location.search == '') unittest.runTests();
+}  
+""");
+    // Save the Dart file.
+    createFile(destFile, sbuf.toString());
+  }
+
   String directives(String library, String unittest, String sourceName) {
     return """
 #library('$library');
 #import('dart:math');
 #import('dart:isolate');
 #import('$unittest', prefix:'unittest');
 #import('$sourceName', prefix: 'test');
 """;
   }
 
@@ skipping 321 matching lines @@
   runParentTest();
 }
 """;
 
   // Code for running all tests in the normal (non-isolate) way.
   final String runTestsFunction = """
 runTests() {
   unittest.runTests();
 }
 """;
+
 }