Replace the existing unittest APIs with the new runner infrastructure.

test/expect_async_args_test.dart

Index: test/expect_async_args_test.dart
diff --git a/test/expect_async_args_test.dart b/test/expect_async_args_test.dart
deleted file mode 100644
index 8e814dc9b83191e62e8e19a34e1c2ccba7252a0f..0000000000000000000000000000000000000000
--- a/test/expect_async_args_test.dart
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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 unittest.expect_async_args_test;
-
-import 'package:unittest/unittest.dart';
-
-import 'package:metatest/metatest.dart';
-
-void main() => initTests(_test);
-
-void _test(message) {
-  initMetatest(message);
-
-  expectTestResults('expect async args', () {
-    var count = 0;
-    List<int> _getArgs([a = 0, b = 0, c = 0, d = 0, e = 0, f = 0]) {
-      count++;
-      return [a, b, c, d, e, f];
-    }
-
-    test('expect async args', () {
-      expect(expectAsync(_getArgs)(), [0, 0, 0, 0, 0, 0]);
-      expect(expectAsync(_getArgs)(5), [5, 0, 0, 0, 0, 0]);
-      expect(expectAsync(_getArgs)(1, 2, 3, 4, 5, 6), [1, 2, 3, 4, 5, 6]);
-    });
-
-    test('invoked with too many args', () {
-      expectAsync(_getArgs)(1, 2, 3, 4, 5, 6, 7);
-    });
-
-    test('created with too many args', () {
-      expectAsync((a1, a2, a3, a4, a5, a6, a7) {
-        count++;
-      })();
-    });
-
-    test('verify count', () {
-      expect(count, 3);
-    });
-  }, [
-    {'description': 'expect async args', 'result': 'pass',},
-    {'description': 'invoked with too many args', 'result': 'error',},
-    {'description': 'created with too many args', 'result': 'error',},
-    {'description': 'verify count', 'result': 'pass',}
-  ]);
-}