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<!DOCTYPE html>
<html>
<!--
Copyright 2011 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.math.ExponentialBackoff</title>
<script src="../base.js"></script>
<script>
goog.require('goog.math.ExponentialBackoff');
goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script>
var INITIAL_VALUE = 1;
var MAX_VALUE = 10;
function assertValueAndCount(value, count, backoff) {
assertEquals('Wrong value', value, backoff.getValue());
assertEquals('Wrong backoff count', count, backoff.getBackoffCount());
}
function createBackoff() {
return new goog.math.ExponentialBackoff(INITIAL_VALUE, MAX_VALUE);
}
function testInitialState() {
var backoff = createBackoff();
assertValueAndCount(INITIAL_VALUE, 0, backoff);
}
function testBackoff() {
var backoff = createBackoff();
backoff.backoff();
assertValueAndCount(2 /* value */, 1 /* count */, backoff);
backoff.backoff();
assertValueAndCount(4 /* value */, 2 /* count */, backoff);
backoff.backoff();
assertValueAndCount(8 /* value */, 3 /* count */, backoff);
backoff.backoff();
assertValueAndCount(MAX_VALUE, 4 /* count */, backoff);
backoff.backoff();
assertValueAndCount(MAX_VALUE, 5 /* count */, backoff);
}
function testReset() {
var backoff = createBackoff();
backoff.backoff();
backoff.reset();
assertValueAndCount(INITIAL_VALUE, 0 /* count */, backoff);
}
</script>
</body>
</html>
|
