Commons IO example source code file (FileDeleteStrategyTestCase.java)

This example Commons IO source code file (FileDeleteStrategyTestCase.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons IO tags/keywords

exception, exception, file, file, filebasedtestcase, filedeletestrategy, filedeletestrategytestcase, filedeletestrategytestcase, io, ioexception, nullpointerexception, override, override

The Commons IO FileDeleteStrategyTestCase.java source code

/*
 * 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.io.IOException;

import org.apache.commons.io.testtools.FileBasedTestCase;

/**
 * Test for FileDeleteStrategy.
 *
 * @version $Id: FileDeleteStrategyTestCase.java 919474 2010-03-05 16:31:43Z sebb $
 * @see FileDeleteStrategy
 */
public class FileDeleteStrategyTestCase extends FileBasedTestCase {

    public FileDeleteStrategyTestCase(String name) {
        super(name);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    //-----------------------------------------------------------------------
    public void testDeleteNormal() throws Exception {
        File baseDir = getTestDirectory();
        File subDir = new File(baseDir, "test");
        assertEquals(true, subDir.mkdir());
        File subFile = new File(subDir, "a.txt");
        createFile(subFile, 16);
        
        assertEquals(true, subDir.exists());
        assertEquals(true, subFile.exists());
        // delete dir
        try {
            FileDeleteStrategy.NORMAL.delete(subDir);
            fail();
        } catch (IOException ex) {
            // expected
        }
        assertEquals(true, subDir.exists());
        assertEquals(true, subFile.exists());
        // delete file
        FileDeleteStrategy.NORMAL.delete(subFile);
        assertEquals(true, subDir.exists());
        assertEquals(false, subFile.exists());
        // delete dir
        FileDeleteStrategy.NORMAL.delete(subDir);
        assertEquals(false, subDir.exists());
        // delete dir
        FileDeleteStrategy.NORMAL.delete(subDir);  // no error
        assertEquals(false, subDir.exists());
    }

    public void testDeleteQuietlyNormal() throws Exception {
        File baseDir = getTestDirectory();
        File subDir = new File(baseDir, "test");
        assertEquals(true, subDir.mkdir());
        File subFile = new File(subDir, "a.txt");
        createFile(subFile, 16);
        
        assertEquals(true, subDir.exists());
        assertEquals(true, subFile.exists());
        // delete dir
        assertEquals(false, FileDeleteStrategy.NORMAL.deleteQuietly(subDir));
        assertEquals(true, subDir.exists());
        assertEquals(true, subFile.exists());
        // delete file
        assertEquals(true, FileDeleteStrategy.NORMAL.deleteQuietly(subFile));
        assertEquals(true, subDir.exists());
        assertEquals(false, subFile.exists());
        // delete dir
        assertEquals(true, FileDeleteStrategy.NORMAL.deleteQuietly(subDir));
        assertEquals(false, subDir.exists());
        // delete dir
        assertEquals(true, FileDeleteStrategy.NORMAL.deleteQuietly(subDir));  // no error
        assertEquals(false, subDir.exists());
    }

    public void testDeleteForce() throws Exception {
        File baseDir = getTestDirectory();
        File subDir = new File(baseDir, "test");
        assertEquals(true, subDir.mkdir());
        File subFile = new File(subDir, "a.txt");
        createFile(subFile, 16);
        
        assertEquals(true, subDir.exists());
        assertEquals(true, subFile.exists());
        // delete dir
        FileDeleteStrategy.FORCE.delete(subDir);
        assertEquals(false, subDir.exists());
        assertEquals(false, subFile.exists());
        // delete dir
        FileDeleteStrategy.FORCE.delete(subDir);  // no error
        assertEquals(false, subDir.exists());
    }

    public void testDeleteNull() throws Exception {
        try {
            FileDeleteStrategy.NORMAL.delete((File) null);
            fail();
        } catch (NullPointerException ex) {
            // expected
        }
        assertEquals(true, FileDeleteStrategy.NORMAL.deleteQuietly((File) null));
    }

    public void testToString() {
        assertEquals("FileDeleteStrategy[Normal]", FileDeleteStrategy.NORMAL.toString());
        assertEquals("FileDeleteStrategy[Force]", FileDeleteStrategy.FORCE.toString());
    }

}