Split unittest tests into separate test files.

pkg/unittest/test/unittest_test_returning_future_using_runasync_test.dart

Index: pkg/unittest/test/unittest_test_returning_future_using_runasync_test.dart
===================================================================
--- pkg/unittest/test/unittest_test_returning_future_using_runasync_test.dart	(revision 0)
+++ pkg/unittest/test/unittest_test_returning_future_using_runasync_test.dart	(revision 0)
@@ -0,0 +1,83 @@
+// Copyright (c) 2013, 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.
+
+library unittestTest;
+import 'dart:isolate';
+import 'dart:async';
+import 'package:unittest/unittest.dart';
+
+part 'unittest_test_utils.dart';
+
+var testName = 'test returning future using runAsync';
+
+var testFunction = (_) {
+  test("successful", () {
+    return _defer(() {
+      runAsync(() {
+        guardAsync(() {
+          expect(true, true);
+        });
+      });
+    });
+  });
+  test("fail1", () {
+    var callback = expectAsync0((){});
+    return _defer(() {
+      runAsync(() {
+        guardAsync(() {
+          expect(true, false);
+          callback();
+        });
+      });
+    });
+  });
+  test('error1', () {
+    var callback = expectAsync0((){});
+    var excesscallback = expectAsync0((){});
+    return _defer(() {
+      runAsync(() {
+        guardAsync(() {
+          excesscallback();
+          excesscallback();
+          callback();
+        });
+      });
+    });
+  });
+  test("fail2", () {
+    var callback = expectAsync0((){});
+    return _defer(() {
+      runAsync(() {
+        guardAsync(() {
+          fail('failure');
+          callback();
+        });
+      });
+    });
+  });
+  test('error2', () {
+    var callback = expectAsync0((){});
+    var excesscallback = expectAsync0((){});
+    return _defer(() {
+      runAsync(() {
+        guardAsync(() {
+          excesscallback();
+          excesscallback();
+          excesscallback();
+          callback();
+        });
+      });
+    });
+  });
+  test('foo6', () {
+  });
+};
+
+var expected = buildStatusString(2, 4, 0,
+    'successful::'
+    'fail1:Expected: <false> Actual: <true>:'
+    'error1:Callback called more times than expected (1).:'
+    'fail2:failure:'
+    'error2:Callback called more times than expected (1).:'
+    'foo6');