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packages/quiver/test/core/hash_test.dart

 // Copyright 2013 Google Inc. All Rights Reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-part of quiver.testing.runtime;
+library quiver.core.hash_test;
 
-/**
- * Asserts that the current runtime has checked mode enabled.
- *
- * Otherwise, throws [StateError].
- */
-void assertCheckedMode() {
-  if (_isCheckedMode == null) _isCheckedMode = _checkForCheckedMode();
+import 'package:quiver/core.dart';
+import 'package:test/test.dart';
 
-  if (!_isCheckedMode) {
-    throw new StateError('Not in checked mode.');
-  }
+main() {
+  test('hashObjects should return an int', () {
+    int h = hashObjects(['123', 456]);
+    expect(h, new isInstanceOf<int>());
+  });
+
+  test('hash2 should return an int', () {
+    int h = hash2('123', 456);
+    expect(h, new isInstanceOf<int>());
+  });
+
+  test('hash3 should return an int', () {
+    int h = hash3('123', 456, true);
+    expect(h, new isInstanceOf<int>());
+  });
+
+  test('hash4 should return an int', () {
+    int h = hash4('123', 456, true, []);
+    expect(h, new isInstanceOf<int>());
+  });
 }
-
-bool _isCheckedMode = null;
-
-bool _checkForCheckedMode() {
-  Object sentinal = new Object();
-  try {
-    var i = 1 as dynamic;
-    String string = i;
-    throw sentinal;
-  } catch (e) {
-    if (e == sentinal) return false;
-  }
-  return true;
-}