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📄 testdirectorynode.java

📁 java 读写word excel ppt
💻 JAVA
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/* ====================================================================   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.poi.poifs.filesystem;import java.io.*;import java.util.*;import junit.framework.*;import org.apache.poi.poifs.property.DirectoryProperty;import org.apache.poi.poifs.property.DocumentProperty;/** * Class to test DirectoryNode functionality * * @author Marc Johnson */public class TestDirectoryNode    extends TestCase{    /**     * Constructor TestDirectoryNode     *     * @param name     */    public TestDirectoryNode(String name)    {        super(name);    }    /**     * test trivial constructor (a DirectoryNode with no children)     *     * @exception IOException     */    public void testEmptyConstructor()        throws IOException    {        POIFSFileSystem   fs        = new POIFSFileSystem();        DirectoryProperty property1 = new DirectoryProperty("parent");        DirectoryProperty property2 = new DirectoryProperty("child");        DirectoryNode     parent    = new DirectoryNode(property1, fs, null);        DirectoryNode     node      = new DirectoryNode(property2, fs,                                          parent);        assertEquals(0, parent.getPath().length());        assertEquals(1, node.getPath().length());        assertEquals("child", node.getPath().getComponent(0));        // verify that getEntries behaves correctly        int      count = 0;        Iterator iter  = node.getEntries();        while (iter.hasNext())        {            count++;            iter.next();        }        assertEquals(0, count);        // verify behavior of isEmpty        assertTrue(node.isEmpty());        // verify behavior of getEntryCount        assertEquals(0, node.getEntryCount());        // verify behavior of getEntry        try        {            node.getEntry("foo");            fail("should have caught FileNotFoundException");        }        catch (FileNotFoundException ignored)        {            // as expected        }        // verify behavior of isDirectoryEntry        assertTrue(node.isDirectoryEntry());        // verify behavior of getName        assertEquals(property2.getName(), node.getName());        // verify behavior of isDocumentEntry        assertTrue(!node.isDocumentEntry());        // verify behavior of getParent        assertEquals(parent, node.getParent());    }    /**     * test non-trivial constructor (a DirectoryNode with children)     *     * @exception IOException     */    public void testNonEmptyConstructor()        throws IOException    {        DirectoryProperty property1 = new DirectoryProperty("parent");        DirectoryProperty property2 = new DirectoryProperty("child1");        property1.addChild(property2);        property1.addChild(new DocumentProperty("child2", 2000));        property2.addChild(new DocumentProperty("child3", 30000));        DirectoryNode node  = new DirectoryNode(property1,                                                new POIFSFileSystem(), null);        // verify that getEntries behaves correctly        int           count = 0;        Iterator      iter  = node.getEntries();        while (iter.hasNext())        {            count++;            iter.next();        }        assertEquals(2, count);        // verify behavior of isEmpty        assertTrue(!node.isEmpty());        // verify behavior of getEntryCount        assertEquals(2, node.getEntryCount());        // verify behavior of getEntry        DirectoryNode child1 = ( DirectoryNode ) node.getEntry("child1");        child1.getEntry("child3");        node.getEntry("child2");        try        {            node.getEntry("child3");            fail("should have caught FileNotFoundException");        }        catch (FileNotFoundException ignored)        {            // as expected        }        // verify behavior of isDirectoryEntry        assertTrue(node.isDirectoryEntry());        // verify behavior of getName        assertEquals(property1.getName(), node.getName());        // verify behavior of isDocumentEntry        assertTrue(!node.isDocumentEntry());        // verify behavior of getParent        assertNull(node.getParent());    }    /**     * test deletion methods     *     * @exception IOException     */    public void testDeletion()        throws IOException    {        POIFSFileSystem fs   = new POIFSFileSystem();        DirectoryEntry  root = fs.getRoot();        // verify cannot delete the root directory        assertTrue(!root.delete());        DirectoryEntry dir = fs.createDirectory("myDir");        assertTrue(!root.isEmpty());        // verify can delete empty directory        assertTrue(dir.delete());        dir = fs.createDirectory("NextDir");        DocumentEntry doc =            dir.createDocument("foo",                               new ByteArrayInputStream(new byte[ 1 ]));        assertTrue(!dir.isEmpty());        // verify cannot delete empty directory        assertTrue(!dir.delete());        assertTrue(doc.delete());        // verify now we can delete it        assertTrue(dir.delete());        assertTrue(root.isEmpty());    }    /**     * test change name methods     *     * @exception IOException     */    public void testRename()        throws IOException    {        POIFSFileSystem fs   = new POIFSFileSystem();        DirectoryEntry  root = fs.getRoot();        // verify cannot rename the root directory        assertTrue(!root.renameTo("foo"));        DirectoryEntry dir = fs.createDirectory("myDir");        assertTrue(dir.renameTo("foo"));        assertEquals("foo", dir.getName());        DirectoryEntry dir2 = fs.createDirectory("myDir");        assertTrue(!dir2.renameTo("foo"));        assertEquals("myDir", dir2.getName());        assertTrue(dir.renameTo("FirstDir"));        assertTrue(dir2.renameTo("foo"));        assertEquals("foo", dir2.getName());    }    /**     * main method to run the unit tests     *     * @param ignored_args     */    public static void main(String [] ignored_args)    {        System.out            .println("Testing org.apache.poi.poifs.filesystem.DirectoryNode");        junit.textui.TestRunner.run(TestDirectoryNode.class);    }}

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