| /* |
| * 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.comparator; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.apache.commons.io.test.TestUtils; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Test case for {@link CompositeFileComparator}. |
| */ |
| public class CompositeFileComparatorTest extends ComparatorAbstractTestCase { |
| |
| @BeforeEach |
| public void setUp() throws Exception { |
| comparator = new CompositeFileComparator( |
| (AbstractFileComparator) SizeFileComparator.SIZE_COMPARATOR, (AbstractFileComparator) ExtensionFileComparator.EXTENSION_COMPARATOR); |
| reverse = new ReverseFileComparator(comparator); |
| lessFile = new File(dir, "xyz.txt"); |
| equalFile1 = new File(dir, "foo.txt"); |
| equalFile2 = new File(dir, "bar.txt"); |
| moreFile = new File(dir, "foo.xyz"); |
| if (!lessFile.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + lessFile |
| + " as the parent directory does not exist"); |
| } |
| |
| try (final BufferedOutputStream output3 = |
| new BufferedOutputStream(new FileOutputStream(lessFile))) { |
| TestUtils.generateTestData(output3, 32); |
| } |
| if (!equalFile1.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + equalFile1 |
| + " as the parent directory does not exist"); |
| } |
| try (final BufferedOutputStream output2 = |
| new BufferedOutputStream(new FileOutputStream(equalFile1))) { |
| TestUtils.generateTestData(output2, 48); |
| } |
| if (!equalFile2.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + equalFile2 |
| + " as the parent directory does not exist"); |
| } |
| try (final BufferedOutputStream output1 = |
| new BufferedOutputStream(new FileOutputStream(equalFile2))) { |
| TestUtils.generateTestData(output1, 48); |
| } |
| if (!moreFile.getParentFile().exists()) { |
| throw new IOException("Cannot create file " + moreFile |
| + " as the parent directory does not exist"); |
| } |
| try (final BufferedOutputStream output = |
| new BufferedOutputStream(new FileOutputStream(moreFile))) { |
| TestUtils.generateTestData(output, 48); |
| } |
| } |
| |
| /** |
| * Test Constructor with null Iterable |
| */ |
| @Test |
| public void constructorIterable_order() { |
| final List<Comparator<File>> list = new ArrayList<>(); |
| list.add(SizeFileComparator.SIZE_COMPARATOR); |
| list.add(ExtensionFileComparator.EXTENSION_COMPARATOR); |
| final Comparator<File> c = new CompositeFileComparator(list); |
| |
| assertEquals(0, c.compare(equalFile1, equalFile2), "equal"); |
| assertTrue(c.compare(lessFile, moreFile) < 0, "less"); |
| assertTrue(c.compare(moreFile, lessFile) > 0, "more"); |
| } |
| |
| /** |
| * Test Constructor with null Iterable |
| */ |
| @Test |
| public void constructorIterable_Null() { |
| final Comparator<File> c = new CompositeFileComparator((Iterable<Comparator<File>>)null); |
| assertEquals(0, c.compare(lessFile, moreFile), "less,more"); |
| assertEquals(0, c.compare(moreFile, lessFile), "more,less"); |
| assertEquals("CompositeFileComparator{}", c.toString(), "toString"); |
| } |
| |
| /** |
| * Test Constructor with null array |
| */ |
| @Test |
| public void constructorArray_Null() { |
| final Comparator<File> c = new CompositeFileComparator((Comparator<File>[])null); |
| assertEquals(0, c.compare(lessFile, moreFile), "less,more"); |
| assertEquals(0, c.compare(moreFile, lessFile), "more,less"); |
| assertEquals("CompositeFileComparator{}", c.toString(), "toString"); |
| } |
| } |