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packages/unittest/test/expect_async_test.dart

Index: packages/unittest/test/expect_async_test.dart
diff --git a/packages/unittest/test/expect_async_test.dart b/packages/unittest/test/expect_async_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..844e44b0f6040f6b6435a1d09b8118579d1539ab
--- /dev/null
+++ b/packages/unittest/test/expect_async_test.dart
@@ -0,0 +1,100 @@
+// 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_test;
+
+import 'dart:async';
+
+import 'package:metatest/metatest.dart';
+import 'package:unittest/unittest.dart';
+
+void main() => initTests(_test);
+
+void _test(message) {
+  initMetatest(message);
+
+  var count = 0;
+
+  expectTestsPass('expect async test', () {
+    test('expectAsync zero params', () {
+      new Future.sync(expectAsync(() {
+        ++count;
+      }));
+    });
+
+    test('expectAsync 1 param', () {
+      var func = expectAsync((arg) {
+        expect(arg, 0);
+        ++count;
+      });
+      new Future.sync(() => func(0));
+    });
+
+    test('expectAsync 2 param', () {
+      var func = expectAsync((arg0, arg1) {
+        expect(arg0, 0);
+        expect(arg1, 1);
+        ++count;
+      });
+      new Future.sync(() => func(0, 1));
+    });
+
+    test('single arg to Future.catchError', () {
+      var func = expectAsync((error) {
+        expect(error, isStateError);
+        ++count;
+      });
+
+      new Future(() {
+        throw new StateError('test');
+      }).catchError(func);
+    });
+
+    test('2 args to Future.catchError', () {
+      var func = expectAsync((error, stack) {
+        expect(error, isStateError);
+        expect(stack is StackTrace, isTrue);
+        ++count;
+      });
+
+      new Future(() {
+        throw new StateError('test');
+      }).catchError(func);
+    });
+
+    test('zero of two optional positional args', () {
+      var func = expectAsync(([arg0 = true, arg1 = true]) {
+        expect(arg0, isTrue);
+        expect(arg1, isTrue);
+        ++count;
+      });
+
+      new Future.sync(() => func());
+    });
+
+    test('one of two optional positional args', () {
+      var func = expectAsync(([arg0 = true, arg1 = true]) {
+        expect(arg0, isFalse);
+        expect(arg1, isTrue);
+        ++count;
+      });
+
+      new Future.sync(() => func(false));
+    });
+
+    test('two of two optional positional args', () {
+      var func = expectAsync(([arg0 = true, arg1 = true]) {
+        expect(arg0, isFalse);
+        expect(arg1, isNull);
+        ++count;
+      });
+
+      new Future.sync(() => func(false, null));
+    });
+
+    test('verify count', () {
+      expect(count, 8);
+    });
+  });
+}