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<!DOCTYPE html>
<html>
<!--
Copyright 2006 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.structs</title>
<script src="../base.js"></script>
<script>
goog.require('goog.structs.CircularBuffer');
goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>
function testCircularBuffer() {
var buff = new goog.structs.CircularBuffer(2);
buff.add('first');
assertEquals(1, buff.getCount());
assertEquals('first', buff.get(0));
assertEquals('first', buff.getLast());
buff.add('second');
assertEquals(2, buff.getCount());
assertEquals('first', buff.get(0));
assertEquals('second', buff.get(1));
assertEquals('second', buff.getLast());
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());
buff.add('first');
assertFalse('not empty after add empty', buff.isEmpty());
}
function testClear() {
var buff = new goog.structs.CircularBuffer(2);
buff.add('first');
buff.clear();
assertTrue('should be empty after clear', buff.isEmpty());
}
function testGetValues() {
var buff = new goog.structs.CircularBuffer(2);
buff.add('first');
buff.add('second');
assertEquals('firstsecond', buff.getValues().join(''));
}
function testGetNewestVtalues() {
var buff = new goog.structs.CircularBuffer(5);
buff.add('first');
buff.add('second');
buff.add('third');
buff.add('fourth');
buff.add('fifth');
assertEquals('fourthfifth', buff.getNewestValues(2).join(''));
}
function testGetKeys() {
var buff = new goog.structs.CircularBuffer(2);
buff.add('first');
buff.add('second');
assertEquals('01', buff.getKeys().join(''));
}
function testContainsValue() {
var buff = new goog.structs.CircularBuffer(2);
buff.add('first');
buff.add('second');
assertTrue(buff.containsValue('first'));
assertTrue(buff.containsValue('second'));
assertFalse(buff.containsValue('third'));
}
function testContainsKey() {
var buff = new goog.structs.CircularBuffer(3);
buff.add('first');
buff.add('second');
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'));
}
</script>
</body>
</html>
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