110 lines
4.0 KiB
Java
110 lines
4.0 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. 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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*/
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package org.apache.juli;
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import java.lang.reflect.Field;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import org.junit.Assert;
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import org.junit.Test;
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public class TestDateFormatCache {
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// Note that there is a similar test:
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// org.apache.catalina.valves.TestAccessLogValve.testBug54044()
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@Test
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public void testBug54044() throws Exception {
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final String timeFormat = "dd-MMM-yyyy HH:mm:ss";
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final int cacheSize = 10;
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SimpleDateFormat sdf = new SimpleDateFormat(timeFormat, Locale.US);
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sdf.setTimeZone(TimeZone.getDefault());
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DateFormatCache dfc = new DateFormatCache(cacheSize, timeFormat, null);
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// Get dfc.cache.cache field
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Object dfcCache;
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Field dfcCacheArray;
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Field dfcCacheField = dfc.getClass().getDeclaredField("cache");
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dfcCacheField.setAccessible(true);
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dfcCache = dfcCacheField.get(dfc);
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dfcCacheArray = dfcCache.getClass().getDeclaredField("cache");
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dfcCacheArray.setAccessible(true);
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// Create an array to hold the expected values
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String[] expected = new String[cacheSize];
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// Fill the cache & populate the expected values
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for (int secs = 0; secs < (cacheSize); secs++) {
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dfc.getFormat(secs * 1000);
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expected[secs] = generateExpected(sdf, secs);
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}
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Cause the cache to roll-around by one and then confirm
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dfc.getFormat(cacheSize * 1000);
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expected[0] = generateExpected(sdf, cacheSize);
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Jump 2 ahead and then confirm (skipped value should be null)
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dfc.getFormat((cacheSize + 2) * 1000);
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expected[1] = null;
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expected[2] = generateExpected(sdf, cacheSize + 2);
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Back 1 to fill in the gap
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dfc.getFormat((cacheSize + 1) * 1000);
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expected[1] = generateExpected(sdf, cacheSize + 1);
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Return to 1 and confirm skipped value is null
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dfc.getFormat(1 * 1000);
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expected[1] = generateExpected(sdf, 1);
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expected[2] = null;
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Go back one further
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dfc.getFormat(0);
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expected[0] = generateExpected(sdf, 0);
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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// Jump ahead far enough that the entire cache will need to be cleared
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dfc.getFormat(42 * 1000);
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for (int i = 0; i < cacheSize; i++) {
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expected[i] = null;
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}
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expected[0] = generateExpected(sdf, 42);
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Assert.assertArrayEquals(expected,
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(String[]) dfcCacheArray.get(dfcCache));
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}
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private String generateExpected(SimpleDateFormat sdf, long secs) {
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return sdf.format(new Date(secs * 1000));
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}
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}
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