Sharing metatest logic between unittest and scheduled_test

pkg/unittest/test/expect_async_args_test.dart

 // 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:async';
-import 'dart:isolate';
+library unittest.expect_async_args_test;
 
 import 'package:unittest/unittest.dart';
 
-part 'utils.dart';
+import 'package:metatest/metatest.dart';
 
-var testFunction = (TestConfiguration testConfig) {
-  List<int> _getArgs([a = 0, b = 0, c = 0, d = 0, e = 0, f = 0]) {
-    testConfig.count++;
-    return [a, b, c, d, e, f];
-  }
+void main() => initTests(_test);
 
-  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]);
-  });
+void _test(message) {
+  initMetatest(message);
 
-  test('invoked with too many args', () {
-    expectAsync(_getArgs)(1, 2, 3, 4, 5, 6, 7);
-  });
+  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('created with too many args', () {
-    expectAsync((a1, a2, a3, a4, a5, a6, a7) {
-      testConfig.count++;
-    })();
-  });
-};
+    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]);
+    });
 
-final expected = startsWith('1:0:2:3:3:::null:expect async args::'
-    'invoked with too many args:Test failed:');
+    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',
+  }]);
+}