Parameterize 'new Options().script'.

dart/tools/testing/dart/test_suite.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.
 
 /**
  * Classes and methods for enumerating and preparing tests.
  *
  * This library includes:
  *
  * - Creating tests by listing all the Dart files in certain directories,
@@ skipping 1225 matching lines @@
          '$dartDir/third_party/hamcrest/v1_3/hamcrest-integration-1.3.0RC2.jar',
          '$dartDir/third_party/hamcrest/v1_3/hamcrest-library-1.3.0RC2.jar',
          '$dartDir/third_party/junit/v4_8_2/junit.jar'],
         Platform.operatingSystem == 'windows'? ';': ':');  // Path separator.
   }
 }
 
 
 class TestUtils {
   /**
+   * The libraries in this directory relies on finding various files
+   * relative to the 'test.dart' script in '.../dart/tools/test.dart'. If
+   * the main script using 'test_suite.dart' is not there, the main
+   * script must set this to '.../dart/tools/test.dart'.
+   */
+  static String testScriptPath = new Options().script;
+
+  /**
    * Creates a directory using a [relativePath] to an existing
    * [base] directory if that [relativePath] does not already exist.
    */
   static Directory mkdirRecursive(Path base, Path relativePath) {
     Directory dir = new Directory.fromPath(base);
     Expect.isTrue(dir.existsSync(),
                   "Expected ${dir} to already exist");
     var segments = relativePath.segments();
     for (String segment in segments) {
       base = base.append(segment);
@@ skipping 118 matching lines @@
     return result;
   }
 
   static String buildDir(Map configuration) {
     String mode = (configuration['mode'] == 'debug') ? 'Debug' : 'Release';
     String arch = configuration['arch'].toUpperCase();
     return "${outputDir(configuration)}$mode$arch";
  }
 
   static Path dartDir() {
-    File scriptFile = new File(new Options().script);
+    File scriptFile = new File(testScriptPath);
     Path scriptPath = new Path.fromNative(scriptFile.fullPathSync());
     return scriptPath.directoryPath.directoryPath;
   }
 
   static List<String> standardOptions(Map configuration) {
     List args = ["--ignore-unrecognized-flags"];
     if (configuration["checked"]) {
       args.add('--enable_asserts');
       args.add("--enable_type_checks");
     }
@@ skipping 66 matching lines @@
  * $noCrash tests are expected to be flaky but not crash
  * $pass tests are expected to pass
  * $failOk tests are expected to fail that we won't fix
  * $fail tests are expected to fail that we should fix
  * $crash tests are expected to crash that we should fix
  * $timeout tests are allowed to timeout
 """;
     print(report);
    }
 }