| /* ==================================================================== |
| 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.hdgf; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertNotNull; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.poi.POIDataSamples; |
| import org.apache.poi.hdgf.extractor.VisioTextExtractor; |
| import org.apache.poi.hdgf.streams.PointerContainingStream; |
| import org.apache.poi.hdgf.streams.TrailerStream; |
| import org.apache.poi.poifs.filesystem.POIFSFileSystem; |
| import org.junit.jupiter.api.AfterEach; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| public final class TestHDGFCore { |
| private static final POIDataSamples SAMPLES = POIDataSamples.getDiagramInstance(); |
| |
| @Test |
| void testCreate() throws Exception { |
| try (POIFSFileSystem fs = openFS("Test_Visio-Some_Random_Text.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| } |
| } |
| |
| @Test |
| void testTrailer() throws Exception { |
| try (POIFSFileSystem fs = openFS("Test_Visio-Some_Random_Text.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| assertNotNull(hdgf.getTrailerStream()); |
| |
| // Check it has what we'd expect |
| TrailerStream trailer = hdgf.getTrailerStream(); |
| assertEquals(0x8a94, trailer.getPointer().getOffset()); |
| |
| assertNotNull(trailer.getPointedToStreams()); |
| assertEquals(20, trailer.getPointedToStreams().length); |
| |
| assertEquals(20, hdgf.getTopLevelStreams().length); |
| |
| // 9th one should have children |
| assertNotNull(trailer.getPointedToStreams()[8]); |
| assertNotNull(trailer.getPointedToStreams()[8].getPointer()); |
| PointerContainingStream ps8 = (PointerContainingStream) |
| trailer.getPointedToStreams()[8]; |
| assertNotNull(ps8.getPointedToStreams()); |
| assertEquals(8, ps8.getPointedToStreams().length); |
| } |
| } |
| |
| /** |
| * Tests that we can open a problematic file, that used to |
| * break with a negative chunk length |
| */ |
| @Test |
| void testNegativeChunkLength() throws Exception { |
| try (POIFSFileSystem fs = openFS("NegativeChunkLength.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| } |
| |
| // And another file |
| try (POIFSFileSystem fs = openFS("NegativeChunkLength2.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| } |
| } |
| |
| /** |
| * Tests that we can open a problematic file that triggers |
| * an ArrayIndexOutOfBoundsException when processing the |
| * chunk commands. |
| */ |
| @Test |
| void testAIOOB() throws Exception { |
| try (POIFSFileSystem fs = openFS("44501.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| } |
| } |
| |
| @Test |
| void testV5() throws Exception { |
| try (POIFSFileSystem fs = openFS("v5_Connection_Types.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| |
| try (VisioTextExtractor textExtractor = new VisioTextExtractor(hdgf)) { |
| String text = textExtractor.getText().replace("\u0000", "").trim(); |
| assertEquals("Static to Static\nDynamic to Static\nDynamic to Dynamic", text); |
| } |
| } |
| } |
| |
| @Test |
| void testV6NonUtf16LE() throws Exception { |
| try (POIFSFileSystem fs = openFS("v6-non-utf16le.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| |
| try (VisioTextExtractor textExtractor = new VisioTextExtractor(hdgf)) { |
| String text = textExtractor.getText().replace("\u0000", "").trim(); |
| assertEquals("Table\n\n\nPropertySheet\n\n\n\nPropertySheetField", text); |
| } |
| } |
| } |
| |
| @Test |
| void testUtf16LE() throws Exception { |
| try (POIFSFileSystem fs = openFS("Test_Visio-Some_Random_Text.vsd"); |
| HDGFDiagram hdgf = new HDGFDiagram(fs)) { |
| assertNotNull(hdgf); |
| |
| try (VisioTextExtractor textExtractor = new VisioTextExtractor(hdgf)) { |
| String text = textExtractor.getText().trim(); |
| assertEquals("text\nView\nTest View\nI am a test view\nSome random text, on a page", text); |
| } |
| } |
| } |
| |
| private POIFSFileSystem openFS(String file) throws IOException { |
| try (InputStream is = SAMPLES.openResourceAsStream(file)) { |
| return new POIFSFileSystem(is); |
| } |
| } |
| } |