Andreas Hocevar
74 lines
2.1 KiB
JavaScript
74 lines
2.1 KiB
JavaScript
// Copyright 2008 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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goog.provide('goog.testing.MockRandomTest');
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goog.setTestOnly('goog.testing.MockRandomTest');
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goog.require('goog.testing.MockRandom');
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goog.require('goog.testing.jsunit');
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function testMockRandomInstall() {
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var random = new goog.testing.MockRandom([]);
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var originalRandom = Math.random;
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assertFalse(!!random.installed_);
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random.install();
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assertTrue(random.installed_);
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assertNotEquals(Math.random, originalRandom);
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random.uninstall();
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assertFalse(random.installed_);
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assertEquals(originalRandom, Math.random);
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}
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function testMockRandomRandom() {
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var random = new goog.testing.MockRandom([], true);
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assertFalse(random.hasMoreValues());
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random.inject(2);
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assertTrue(random.hasMoreValues());
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assertEquals(2, Math.random());
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random.inject([1, 2, 3]);
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assertTrue(random.hasMoreValues());
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assertEquals(1, Math.random());
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assertEquals(2, Math.random());
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assertEquals(3, Math.random());
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assertFalse(random.hasMoreValues());
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assertNotUndefined(Math.random());
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}
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function testRandomStrictlyFromSequence() {
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var random = new goog.testing.MockRandom([], /* install */ true);
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random.setStrictlyFromSequence(true);
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assertFalse(random.hasMoreValues());
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assertThrows(function() {
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Math.random();
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});
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random.inject(3);
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assertTrue(random.hasMoreValues());
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assertNotThrows(function() {
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Math.random();
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});
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random.setStrictlyFromSequence(false);
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assertFalse(random.hasMoreValues());
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assertNotThrows(function() {
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Math.random();
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});
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}
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