Implement top-level getters.

dart/tests/light_unittest.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.
+
+/// A light-weight replacement for package:unittest.  This library runs tests
+/// synchronously, and avoids using reflection.
+library light_unittest;
+
+import 'dart:async';
+
+import 'async_helper.dart';
+import '../pkg/expect/lib/expect.dart';
+
+test(name, f) {
+  print('Testing $name');
+  try {
+    f();
+    print('PASS: $name');
+  } catch (e, trace) {
+    print('FAIL: $name.');
+    print(e);
+    print(trace);
+    asyncStart();
+    Timer.run(() { throw new StateError('FAILED: $name.\n$e\n$trace'); });
+  }
+}
+
+expect(actual, expected) {
+  if (expected is Expectation) {
+    expected.check(actual);
+  } else {
+    Expect.equals(expected, actual);
+  }
+}
+
+class Expectation {
+  final check;
+  Expectation(this.check);
+}
+
+equals(expected) {
+  if (expected is List) {
+    return new Expectation((actual) => Expect.listEquals(expected, actual));
+  } else if (expected is Map) {
+    return new Expectation((actual) => Expect.mapEquals(expected, actual));
+  } else if (expected is Set) {
+    return new Expectation((actual) => Expect.setEquals(expected, actual));
+  } else if (expected is String) {
+    return new Expectation((actual) => Expect.stringEquals(expected, actual));
+  } else {
+    return new Expectation((actual) => Expect.equals(expected, actual));
+  }
+}
+
+get throws => new Expectation((actual) => Expect.throws(actual));
+
+get isTrue => new Expectation((actual) => Expect.isTrue(actual));
+
+expectAsync1(then) {
+  asyncStart();
+  return (x) {
+    asyncEnd();
+    return then(x);
+  };
+}