Quelle TestDateFormatCache.java Sprache: JAVA

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.juli;

import java.lang.reflect.Field;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;

import org.junit.Assert;
import org.junit.Test;

public class TestDateFormatCache {

    // Note that there is a similar test:
    // org.apache.catalina.valves.TestAccessLogValve.testBug54044()
    @Test
    public void testBug54044() throws Exception {

        final String timeFormat = "dd-MMM-yyyy HH:mm:ss";
        final int cacheSize = 10;

        SimpleDateFormat sdf = new SimpleDateFormat(timeFormat, Locale.US);
        sdf.setTimeZone(TimeZone.getDefault());

        DateFormatCache dfc = new DateFormatCache(cacheSize, timeFormat, null);

        // Get dfc.cache.cache field
        Object dfcCache;
        Field dfcCacheArray;
        Field dfcCacheField = dfc.getClass().getDeclaredField("cache");
        dfcCacheField.setAccessible(true);
        dfcCache = dfcCacheField.get(dfc);
        dfcCacheArray = dfcCache.getClass().getDeclaredField("cache");
        dfcCacheArray.setAccessible(true);

        // Create an array to hold the expected values
        String[] expected = new String[cacheSize];

        // Fill the cache & populate the expected values
        for (int secs = 0; secs < (cacheSize); secs++) {
            dfc.getFormat(secs * 1000);
            expected[secs] = generateExpected(sdf, secs);
        }
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Cause the cache to roll-around by one and then confirm
        dfc.getFormat(cacheSize * 1000);
        expected[0] = generateExpected(sdf, cacheSize);
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Jump 2 ahead and then confirm (skipped value should be null)
        dfc.getFormat((cacheSize + 2) * 1000);
        expected[1] = null;
        expected[2] = generateExpected(sdf, cacheSize + 2);
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Back 1 to fill in the gap
        dfc.getFormat((cacheSize + 1) * 1000);
        expected[1] = generateExpected(sdf, cacheSize + 1);
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Return to 1 and confirm skipped value is null
        dfc.getFormat(1 * 1000);
        expected[1] = generateExpected(sdf, 1);
        expected[2] = null;
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Go back one further
        dfc.getFormat(0);
        expected[0] = generateExpected(sdf, 0);
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));

        // Jump ahead far enough that the entire cache will need to be cleared
        dfc.getFormat(42 * 1000);
        for (int i = 0; i < cacheSize; i++) {
            expected[i] = null;
        }
        expected[0] = generateExpected(sdf, 42);
        Assert.assertArrayEquals(expected,
                (String[]) dfcCacheArray.get(dfcCache));
    }

    private String generateExpected(SimpleDateFormat sdf, long secs) {
        return sdf.format(new Date(secs * 1000));
    }

}

quality86%

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.