| /* |
| * 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 static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.Date; |
| |
| import org.apache.commons.io.test.TestUtils; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.io.TempDir; |
| |
| /** |
| * This is used to test FileUtils for correctness. |
| */ |
| public class FileUtilsFileNewerTestCase { |
| |
| @TempDir |
| public File temporaryFolder; |
| |
| // Test data |
| private static final int FILE1_SIZE = 1; |
| private static final int FILE2_SIZE = 1024 * 4 + 1; |
| |
| private File testFile1; |
| private File testFile2; |
| |
| @BeforeEach |
| public void setUp() throws Exception { |
| testFile1 = new File(temporaryFolder, "file1-test.txt"); |
| testFile2 = new File(temporaryFolder, "file2-test.txt"); |
| if (!testFile1.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + testFile1 |
| + " as the parent directory does not exist"); |
| } |
| try (final BufferedOutputStream output1 = |
| new BufferedOutputStream(new FileOutputStream(testFile1))) { |
| TestUtils.generateTestData(output1, FILE1_SIZE); |
| } |
| if (!testFile2.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + testFile2 |
| + " as the parent directory does not exist"); |
| } |
| try (final BufferedOutputStream output = |
| new BufferedOutputStream(new FileOutputStream(testFile2))) { |
| TestUtils.generateTestData(output, FILE2_SIZE); |
| } |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, *)} methods which a "normal" file. |
| * @throws IOException |
| * |
| * @see FileUtils#isFileNewer(File, long) |
| * @see FileUtils#isFileNewer(File, Date) |
| * @see FileUtils#isFileNewer(File, File) |
| */ |
| @Test |
| public void testIsFileNewer() throws IOException { |
| if (!testFile1.exists()) { |
| throw new IllegalStateException("The testFile1 should exist"); |
| } |
| |
| final long fileLastModified = FileUtils.lastModified(testFile1); |
| final long TWO_SECOND = 2000; |
| |
| testIsFileNewer("two second earlier is not newer" , testFile1, fileLastModified + TWO_SECOND, false); |
| testIsFileNewer("same time is not newer" , testFile1, fileLastModified, false); |
| testIsFileNewer("two second later is newer" , testFile1, fileLastModified - TWO_SECOND, true); |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, *)} methods which a not existing file. |
| * @throws IOException if an I/O error occurs. |
| * |
| * @see FileUtils#isFileNewer(File, long) |
| * @see FileUtils#isFileNewer(File, Date) |
| * @see FileUtils#isFileNewer(File, File) |
| */ |
| @Test |
| public void testIsFileNewerImaginaryFile() throws IOException { |
| final File imaginaryFile = new File(temporaryFolder, "imaginaryFile"); |
| if (imaginaryFile.exists()) { |
| throw new IllegalStateException("The imaginary File exists"); |
| } |
| |
| testIsFileNewer("imaginary file can be newer" , imaginaryFile, FileUtils.lastModified(testFile2), false); |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, *)} methods which the specified conditions. |
| * |
| * Creates : |
| * <ul> |
| * <li>a {@code Date} which represents the time reference</li> |
| * <li>a temporary file with the same last modification date as the time reference</li> |
| * </ul> |
| * Then compares (with the needed {@code isFileNewer} method) the last modification date of |
| * the specified file with the specified time reference, the created {@code Date} and the temporary |
| * file. |
| * <br> |
| * The test is successful if the three comparisons return the specified wanted result. |
| * |
| * @param description describes the tested situation |
| * @param file the file of which the last modification date is compared |
| * @param time the time reference measured in milliseconds since the epoch |
| * @param wantedResult the expected result |
| * @throws IOException if an I/O error occurs. |
| * |
| * @see FileUtils#isFileNewer(File, long) |
| * @see FileUtils#isFileNewer(File, Date) |
| * @see FileUtils#isFileNewer(File, File) |
| */ |
| protected void testIsFileNewer(final String description, final File file, final long time, final boolean wantedResult) throws IOException { |
| assertEquals(wantedResult, FileUtils.isFileNewer(file, time), description + " - time"); |
| assertEquals(wantedResult, FileUtils.isFileNewer(file, new Date(time)), description + " - date"); |
| |
| final File temporaryFile = testFile2; |
| |
| temporaryFile.setLastModified(time); |
| assertEquals(time, FileUtils.lastModified(temporaryFile), "The temporary file hasn't the right last modification date"); |
| assertEquals(wantedResult, FileUtils.isFileNewer(file, temporaryFile), description + " - file"); |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, long)} method without specifying a {@code File}. |
| * <br> |
| * The test is successful if the method throws an {@code IllegalArgumentException}. |
| */ |
| @Test |
| public void testIsFileNewerNoFile() { |
| assertThrows(NullPointerException.class, () -> FileUtils.isFileNewer(null,0), |
| "file"); |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, Date)} method without specifying a {@code Date}. |
| * <br> |
| * The test is successful if the method throws an {@code IllegalArgumentException}. |
| */ |
| @Test |
| public void testIsFileNewerNoDate() { |
| assertThrows(NullPointerException.class, () -> FileUtils.isFileNewer(testFile1, (Date) null), |
| "date"); |
| } |
| |
| /** |
| * Tests the {@code isFileNewer(File, File)} method without specifying a reference {@code File}. |
| * <br> |
| * The test is successful if the method throws an {@code IllegalArgumentException}. |
| */ |
| @Test |
| public void testIsFileNewerNoFileReference() { |
| assertThrows(NullPointerException.class, () -> FileUtils.isFileNewer(testFile1, (File) null), |
| "reference"); |
| } |
| } |