First exercise of spawnUri. Enabling the test needs issue 1666, but hand-running the test (copyi...

tests/isolate/src/APIv2_spawnUriBrowserNegativeTest.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.
+
+// Negative test to make sure that we are reaching all assertions.
+#library('spawn_tests');
+#import("../../../client/testing/unittest/unittest.dart");
+#import("dart:dom"); // import added so test.dart can treat this as a webtest.
+
+main() {
+  asyncTest("isolate fromUri - negative test", 1, () {
+    ReceivePort port = new ReceivePort();
+    port.receive((msg, _) {
+      expect(msg).equals("re: hello"); // should be hi, not hello
+      port.close();
+      callbackDone();
+    });
+
+    // TODO(eub): make this work for non-JS targets.
+    Isolate2 c = new Isolate2.fromUri("./APIv2_spawnUriChildIsolate.js");
+    c.sendPort.send("hi", port.toSendPort());
+  });
+}