Andreas Hocevar
102 lines
3.3 KiB
JavaScript
102 lines
3.3 KiB
JavaScript
// Copyright 2006 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.structs.CircularBufferTest');
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goog.setTestOnly('goog.structs.CircularBufferTest');
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goog.require('goog.structs.CircularBuffer');
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goog.require('goog.testing.jsunit');
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function testCircularBuffer() {
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var buff = new goog.structs.CircularBuffer(2);
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assertUndefined(buff.add('first'));
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assertEquals(1, buff.getCount());
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assertEquals('first', buff.get(0));
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assertEquals('first', buff.getLast());
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assertUndefined(buff.add('second'));
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assertEquals(2, buff.getCount());
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assertEquals('first', buff.get(0));
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assertEquals('second', buff.get(1));
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assertEquals('second', buff.getLast());
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assertEquals('first', buff.add('third'));
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assertEquals(2, buff.getCount());
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assertEquals('second', buff.get(0));
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assertEquals('third', buff.get(1));
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assertEquals('third', buff.getLast());
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}
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function testIsEmpty() {
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var buff = new goog.structs.CircularBuffer(2);
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assertTrue('initially empty', buff.isEmpty());
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assertUndefined(buff.add('first'));
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assertFalse('not empty after add empty', buff.isEmpty());
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}
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function testClear() {
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var buff = new goog.structs.CircularBuffer(2);
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assertUndefined(buff.add('first'));
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buff.clear();
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assertTrue('should be empty after clear', buff.isEmpty());
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}
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function testGetValues() {
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var buff = new goog.structs.CircularBuffer(2);
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assertUndefined(buff.add('first'));
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assertUndefined(buff.add('second'));
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assertArrayEquals(['first', 'second'], buff.getValues());
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}
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function testGetNewestValues() {
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var buff = new goog.structs.CircularBuffer(5);
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assertUndefined(buff.add('first'));
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assertUndefined(buff.add('second'));
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assertUndefined(buff.add('third'));
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assertUndefined(buff.add('fourth'));
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assertUndefined(buff.add('fifth'));
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assertArrayEquals(['fourth', 'fifth'], buff.getNewestValues(2));
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}
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function testGetKeys() {
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var buff = new goog.structs.CircularBuffer(2);
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assertUndefined(buff.add('first'));
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assertUndefined(buff.add('second'));
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assertArrayEquals([0, 1], buff.getKeys());
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}
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function testContainsValue() {
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var buff = new goog.structs.CircularBuffer(2);
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assertUndefined(buff.add('first'));
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assertUndefined(buff.add('second'));
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assertTrue(buff.containsValue('first'));
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assertTrue(buff.containsValue('second'));
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assertFalse(buff.containsValue('third'));
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}
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function testContainsKey() {
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var buff = new goog.structs.CircularBuffer(3);
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assertUndefined(buff.add('first'));
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assertUndefined(buff.add('second'));
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assertUndefined(buff.add('third'));
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assertTrue(buff.containsKey(0));
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assertTrue(buff.containsKey('0'));
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assertTrue(buff.containsKey(1));
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assertTrue(buff.containsKey('1'));
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assertTrue(buff.containsKey(2));
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assertTrue(buff.containsKey('2'));
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assertFalse(buff.containsKey(3));
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assertFalse(buff.containsKey('3'));
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}
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