Andreas Hocevar
64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
// Copyright 2011 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.math.ExponentialBackoffTest');
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goog.setTestOnly('goog.math.ExponentialBackoffTest');
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goog.require('goog.math.ExponentialBackoff');
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goog.require('goog.testing.jsunit');
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var INITIAL_VALUE = 1;
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var MAX_VALUE = 10;
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function assertValueAndCount(value, count, backoff) {
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assertEquals('Wrong value', value, backoff.getValue());
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assertEquals('Wrong backoff count', count, backoff.getBackoffCount());
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}
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function createBackoff() {
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return new goog.math.ExponentialBackoff(INITIAL_VALUE, MAX_VALUE);
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}
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function testInitialState() {
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var backoff = createBackoff();
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assertValueAndCount(INITIAL_VALUE, 0, backoff);
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}
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function testBackoff() {
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var backoff = createBackoff();
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backoff.backoff();
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assertValueAndCount(2 /* value */, 1 /* count */, backoff);
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backoff.backoff();
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assertValueAndCount(4 /* value */, 2 /* count */, backoff);
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backoff.backoff();
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assertValueAndCount(8 /* value */, 3 /* count */, backoff);
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backoff.backoff();
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assertValueAndCount(MAX_VALUE, 4 /* count */, backoff);
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backoff.backoff();
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assertValueAndCount(MAX_VALUE, 5 /* count */, backoff);
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}
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function testReset() {
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var backoff = createBackoff();
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backoff.backoff();
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backoff.reset();
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assertValueAndCount(INITIAL_VALUE, 0 /* count */, backoff);
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}
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