| /* ==================================================================== |
| 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.property; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.poi.poifs.storage.RawDataUtil; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Class to test DirectoryProperty functionality |
| * |
| * @author Marc Johnson |
| */ |
| public final class TestDirectoryProperty extends TestCase { |
| private DirectoryProperty _property; |
| private byte[] _testblock; |
| |
| /** |
| * Test constructing DirectoryProperty |
| */ |
| public void testConstructor() throws IOException { |
| createBasicDirectoryProperty(); |
| verifyProperty(); |
| } |
| |
| /** |
| * Test pre-write functionality |
| */ |
| public void testPreWrite() throws IOException { |
| createBasicDirectoryProperty(); |
| _property.preWrite(); |
| |
| // shouldn't change anything at all |
| verifyProperty(); |
| verifyChildren(0); |
| |
| // now try adding 1 property |
| createBasicDirectoryProperty(); |
| _property.addChild(new LocalProperty(1)); |
| _property.preWrite(); |
| |
| // update children index |
| _testblock[ 0x4C ] = 1; |
| _testblock[ 0x4D ] = 0; |
| _testblock[ 0x4E ] = 0; |
| _testblock[ 0x4F ] = 0; |
| verifyProperty(); |
| verifyChildren(1); |
| |
| // now try adding 2 properties |
| createBasicDirectoryProperty(); |
| _property.addChild(new LocalProperty(1)); |
| _property.addChild(new LocalProperty(2)); |
| _property.preWrite(); |
| |
| // update children index |
| _testblock[ 0x4C ] = 2; |
| _testblock[ 0x4D ] = 0; |
| _testblock[ 0x4E ] = 0; |
| _testblock[ 0x4F ] = 0; |
| verifyProperty(); |
| verifyChildren(2); |
| |
| // beat on the children allocation code |
| for (int count = 1; count < 100; count++) |
| { |
| createBasicDirectoryProperty(); |
| for (int j = 1; j < (count + 1); j++) |
| { |
| _property.addChild(new LocalProperty(j)); |
| } |
| _property.preWrite(); |
| verifyChildren(count); |
| } |
| } |
| |
| private void verifyChildren(int count) { |
| Iterator iter = _property.getChildren(); |
| List children = new ArrayList(); |
| |
| while (iter.hasNext()) |
| { |
| children.add(iter.next()); |
| } |
| assertEquals(count, children.size()); |
| if (count != 0) |
| { |
| boolean[] found = new boolean[ count ]; |
| |
| found[ _property.getChildIndex() - 1 ] = true; |
| int total_found = 1; |
| |
| Arrays.fill(found, false); |
| iter = children.iterator(); |
| while (iter.hasNext()) |
| { |
| Property child = ( Property ) iter.next(); |
| Child next = child.getNextChild(); |
| |
| if (next != null) |
| { |
| int index = (( Property ) next).getIndex(); |
| |
| if (index != -1) |
| { |
| assertTrue("found index " + index + " twice", |
| !found[ index - 1 ]); |
| found[ index - 1 ] = true; |
| total_found++; |
| } |
| } |
| Child previous = child.getPreviousChild(); |
| |
| if (previous != null) |
| { |
| int index = (( Property ) previous).getIndex(); |
| |
| if (index != -1) |
| { |
| assertTrue("found index " + index + " twice", |
| !found[ index - 1 ]); |
| found[ index - 1 ] = true; |
| total_found++; |
| } |
| } |
| } |
| assertEquals(count, total_found); |
| } |
| } |
| |
| private void createBasicDirectoryProperty() { |
| String name = "MyDirectory"; |
| |
| _property = new DirectoryProperty(name); |
| _testblock = new byte[ 128 ]; |
| int index = 0; |
| |
| for (; index < 0x40; index++) |
| { |
| _testblock[ index ] = ( byte ) 0; |
| } |
| int limit = Math.min(31, name.length()); |
| |
| _testblock[ index++ ] = ( byte ) (2 * (limit + 1)); |
| _testblock[ index++ ] = ( byte ) 0; |
| _testblock[ index++ ] = ( byte ) 1; |
| _testblock[ index++ ] = ( byte ) 1; |
| for (; index < 0x50; index++) |
| { |
| _testblock[ index ] = ( byte ) 0xff; |
| } |
| for (; index < 0x80; index++) |
| { |
| _testblock[ index ] = ( byte ) 0; |
| } |
| byte[] name_bytes = name.getBytes(); |
| |
| for (index = 0; index < limit; index++) |
| { |
| _testblock[ index * 2 ] = name_bytes[ index ]; |
| } |
| } |
| |
| private void verifyProperty() throws IOException { |
| ByteArrayOutputStream stream = new ByteArrayOutputStream(512); |
| |
| _property.writeData(stream); |
| byte[] output = stream.toByteArray(); |
| |
| assertEquals(_testblock.length, output.length); |
| for (int j = 0; j < _testblock.length; j++) |
| { |
| assertEquals("mismatch at offset " + j, _testblock[ j ], |
| output[ j ]); |
| } |
| } |
| |
| public void testAddChild() throws IOException { |
| createBasicDirectoryProperty(); |
| _property.addChild(new LocalProperty(1)); |
| _property.addChild(new LocalProperty(2)); |
| try |
| { |
| _property.addChild(new LocalProperty(1)); |
| fail("should have caught IOException"); |
| } |
| catch (IOException ignored) |
| { |
| |
| // as expected |
| } |
| try |
| { |
| _property.addChild(new LocalProperty(2)); |
| fail("should have caught IOException"); |
| } |
| catch (IOException ignored) |
| { |
| |
| // as expected |
| } |
| _property.addChild(new LocalProperty(3)); |
| } |
| |
| public void testDeleteChild() throws IOException { |
| createBasicDirectoryProperty(); |
| Property p1 = new LocalProperty(1); |
| |
| _property.addChild(p1); |
| try |
| { |
| _property.addChild(new LocalProperty(1)); |
| fail("should have caught IOException"); |
| } |
| catch (IOException ignored) |
| { |
| |
| // as expected |
| } |
| assertTrue(_property.deleteChild(p1)); |
| assertTrue(!_property.deleteChild(p1)); |
| _property.addChild(new LocalProperty(1)); |
| } |
| |
| public void testChangeName() throws IOException { |
| createBasicDirectoryProperty(); |
| Property p1 = new LocalProperty(1); |
| String originalName = p1.getName(); |
| |
| _property.addChild(p1); |
| assertTrue(_property.changeName(p1, "foobar")); |
| assertEquals("foobar", p1.getName()); |
| assertTrue(!_property.changeName(p1, "foobar")); |
| assertEquals("foobar", p1.getName()); |
| Property p2 = new LocalProperty(1); |
| |
| _property.addChild(p2); |
| assertTrue(!_property.changeName(p1, originalName)); |
| assertTrue(_property.changeName(p2, "foo")); |
| assertTrue(_property.changeName(p1, originalName)); |
| } |
| |
| public void testReadingConstructor() { |
| String[] input = { |
| "42 00 6F 00 6F 00 74 00 20 00 45 00 6E 00 74 00 72 00 79 00 00 00 00 00 00 00 00 00 00 00 00 00", |
| "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00", |
| "16 00 01 01 FF FF FF FF FF FF FF FF 02 00 00 00 20 08 02 00 00 00 00 00 C0 00 00 00 00 00 00 46", |
| "00 00 00 00 00 00 00 00 00 00 00 00 C0 5C E8 23 9E 6B C1 01 FE FF FF FF 00 00 00 00 00 00 00 00", |
| }; |
| verifyReadingProperty(0, RawDataUtil.decode(input), 0, "Boot Entry"); |
| } |
| |
| private static void verifyReadingProperty(int index, byte[] input, int offset, String name) { |
| DirectoryProperty property = new DirectoryProperty(index, input, offset); |
| ByteArrayOutputStream stream = new ByteArrayOutputStream(128); |
| byte[] expected = new byte[128]; |
| |
| System.arraycopy(input, offset, expected, 0, 128); |
| try { |
| property.writeData(stream); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| byte[] output = stream.toByteArray(); |
| |
| assertEquals(128, output.length); |
| for (int j = 0; j < 128; j++) { |
| assertEquals("mismatch at offset " + j, expected[j], output[j]); |
| } |
| assertEquals(index, property.getIndex()); |
| assertEquals(name, property.getName()); |
| assertTrue(!property.getChildren().hasNext()); |
| } |
| } |