/*
* 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.commons.io;
import java.io.File;
import java.util.Date;
import org.apache.commons.io.testtools.FileBasedTestCase;
/**
* This is used to test FileUtils for correctness.
*
* @author <a href="mailto:alban.peignier@free.fr">Alban Peignier</a>
*/
public class FileUtilsFileNewerTestCase extends FileBasedTestCase {
// Test data
private static final int FILE1_SIZE = 1;
private static final int FILE2_SIZE = 1024 * 4 + 1;
private File m_testFile1;
private File m_testFile2;
public FileUtilsFileNewerTestCase(String name) {
super(name);
m_testFile1 = new File(getTestDirectory(), "file1-test.txt");
m_testFile2 = new File(getTestDirectory(), "file2-test.txt");
}
/** @see junit.framework.TestCase#setUp() */
protected void setUp() throws Exception {
getTestDirectory().mkdirs();
createFile(m_testFile1, FILE1_SIZE);
createFile(m_testFile2, FILE2_SIZE);
}
/** @see junit.framework.TestCase#tearDown() */
protected void tearDown() throws Exception {
m_testFile1.delete();
m_testFile2.delete();
}
/**
* Tests the <code>isFileNewer(File, *)</code> methods which a "normal" file.
*
* @see FileUtils#isFileNewer(File, long)
* @see FileUtils#isFileNewer(File, Date)
* @see FileUtils#isFileNewer(File, File)
*/
public void testIsFileNewer() {
if (!m_testFile1.exists())
throw new IllegalStateException("The m_testFile1 should exist");
long fileLastModified = m_testFile1.lastModified();
final long TWO_SECOND = 2000;
testIsFileNewer("two second earlier is not newer" , m_testFile1, fileLastModified + TWO_SECOND, false);
testIsFileNewer("same time is not newer" , m_testFile1, fileLastModified, false);
testIsFileNewer("two second later is newer" , m_testFile1, fileLastModified - TWO_SECOND, true);
}
/**
* Tests the <code>isFileNewer(File, *)</code> methods which a not existing file.
*
* @see FileUtils#isFileNewer(File, long)
* @see FileUtils#isFileNewer(File, Date)
* @see FileUtils#isFileNewer(File, File)
*/
public void testIsFileNewerImaginaryFile() {
File imaginaryFile = new File(getTestDirectory(), "imaginaryFile");
if (imaginaryFile.exists())
throw new IllegalStateException("The imaginary File exists");
testIsFileNewer("imaginary file can be newer" , imaginaryFile, m_testFile2.lastModified(), false);
}
/**
* Tests the <code>isFileNewer(File, *)</code> methods which the specified conditions.
* <p/>
* Creates :
* <ul>
* <li>a <code>Date</code> which represents the time reference</li>
* <li>a temporary file with the same last modification date than the time reference</li>
* </ul>
* Then compares (with the needed <code>isFileNewer</code> method) the last modification date of
* the specified file with the specified time reference, the created <code>Date</code> and the temporary
* file.
* <br/>
* The test is successfull if the three comparaisons return the specified wanted result.
*
* @param description describes the tested situation
* @param file the file of which the last modification date is compared
* @param timeMillis the time reference measured in milliseconds since the epoch
*
* @see FileUtils#isFileNewer(File, long)
* @see FileUtils#isFileNewer(File, Date)
* @see FileUtils#isFileNewer(File, File)
*/
protected void testIsFileNewer(String description, File file, long time, boolean wantedResult) {
assertEquals(description + " - time", wantedResult, FileUtils.isFileNewer(file, time));
assertEquals(description + " - date", wantedResult, FileUtils.isFileNewer(file, new Date(time)));
File temporaryFile = m_testFile2;
temporaryFile.setLastModified(time);
assertEquals("The temporary file hasn't the right last modification date", time, temporaryFile.lastModified());
assertEquals(description + " - file", wantedResult, FileUtils.isFileNewer(file, temporaryFile));
}
/**
* Tests the <code>isFileNewer(File, long)</code> method without specifying a <code>File</code>.
* <br/>
* The test is successfull if the method throws an <code>IllegalArgumentException</code>.
*/
public void testIsFileNewerNoFile() {
try {
FileUtils.isFileNewer(null,0);
fail("File not specified");
} catch (IllegalArgumentException e) {}
}
/**
* Tests the <code>isFileNewer(File, Date)</code> method without specifying a <code>Date</code>.
* <br/>
* The test is successfull if the method throws an <code>IllegalArgumentException</code>.
*/
public void testIsFileNewerNoDate() {
try {
FileUtils.isFileNewer(m_testFile1, (Date) null);
fail("Date not specified");
} catch (IllegalArgumentException e) {}
}
/**
* Tests the <code>isFileNewer(File, File)</code> method without specifying a reference <code>File</code>.
* <br/>
* The test is successfull if the method throws an <code>IllegalArgumentException</code>.
*/
public void testIsFileNewerNoFileReference() {
try {
FileUtils.isFileNewer(m_testFile1, (File) null);
fail("Reference file not specified");
} catch (IllegalArgumentException e) {}
}
}