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