| /* |
| * 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.rat.document.impl.guesser; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.rat.document.MockDocument; |
| import org.apache.rat.document.impl.FileDocument; |
| import org.apache.rat.test.utils.Resources; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class BinaryGuesserTest { |
| |
| private static final List<String> BINARY_FILES = Arrays.asList(// |
| "image.png",// |
| "image.pdf",// |
| "image.psd",// |
| "image.gif",// |
| "image.giff",// |
| "image.jpg",// |
| "image.jpeg",// |
| "image.exe",// |
| "Whatever.class",// |
| "data.dat",// |
| "libicuda.so.34",// |
| "my.truststore",// |
| //"foo.Java", // |
| //"manifest.Mf",// |
| "deprecatedtechnology.swf" |
| ); |
| |
| @Test |
| public void testMatches() { |
| for (String name : BINARY_FILES) { |
| assertTrue("'" + name + "' should be detected as a binary", BinaryGuesser.isBinary(new MockDocument(name))); |
| } |
| |
| } |
| |
| @Test |
| public void testIsBinary() { |
| for (String name : BINARY_FILES) { |
| assertTrue("'" + name + "' should be detected as a binary", BinaryGuesser.isBinary(name)); |
| } |
| } |
| |
| /** |
| * Used to swallow a MalformedInputException and return false |
| * because the encoding of the stream was different from the |
| * platform's default encoding. |
| * |
| * @throws Exception |
| * @see "RAT-81" |
| */ |
| @Test |
| public void binaryWithMalformedInputRAT81() throws Exception { |
| FileDocument doc = new FileDocument(Resources.getResourceFile("/binaries/UTF16_with_signature.xml")); |
| Reader r = doc.reader(); // this will fail test if file is not readable |
| try { |
| char[] dummy = new char[100]; |
| r.read(dummy); |
| // if we get here, the UTF-16 encoded file didn't throw |
| // any exception, try the UTF-8 encoded one |
| r.close(); |
| r = null; // ensure we detect failure to read second file |
| doc = new FileDocument(Resources.getResourceFile("/binaries/UTF8_with_signature.xml")); |
| r = doc.reader(); |
| r.read(dummy); |
| // still here? can't test on this platform |
| System.err.println("Skipping testBinaryWithMalformedInput"); |
| } catch (IOException e) { |
| if (r != null) { |
| IOUtils.closeQuietly(r); |
| } else { |
| throw e; // could not open the second file |
| } |
| r = null; |
| assertTrue("Expected binary for " + doc.getName(), BinaryGuesser.isBinary(doc)); |
| } finally { |
| IOUtils.closeQuietly(r); |
| } |
| } |
| |
| @Test |
| public void realBinaryContent() throws IOException { |
| // This test is not accurate on all platforms |
| final String encoding = System.getProperty("file.encoding"); |
| final boolean isBinary = BinaryGuesser.isBinary(new FileDocument(Resources.getResourceFile("/binaries/Image-png.not"))); |
| if (encoding.startsWith("ANSI")) { |
| assertTrue(isBinary); |
| } else { |
| if (isBinary) { |
| System.out.println("BinaryGuesserTest.realBinaryContent() succeeded when using encoding " + encoding); |
| } else { |
| System.err.println("BinaryGuesserTest.realBinaryContent() failed when using encoding " + encoding); |
| } |
| } |
| } |
| |
| @Test |
| public void textualContent() throws IOException { |
| assertFalse(BinaryGuesser.isBinary(new FileDocument(Resources.getResourceFile("/elements/Text.txt")))); |
| } |
| |
| @Test |
| public void emptyFile() throws IOException { |
| assertFalse(BinaryGuesser.isBinary(new FileDocument(Resources.getResourceFile("/elements/sub/Empty.txt")))); |
| } |
| |
| @Test |
| public void testFileEncodingCanBeSetAndHasFallbackInCaseOfErrors() { |
| System.setProperty(BinaryGuesser.FILE_ENCODING, "shouldThrowAnExceptionBecauseNotFound"); |
| assertEquals("UTF-8", BinaryGuesser.getFileEncodingOrUTF8AsFallback().displayName()); |
| |
| final String usAscii = "US-ASCII"; |
| System.setProperty(BinaryGuesser.FILE_ENCODING, usAscii); |
| assertEquals(usAscii, BinaryGuesser.getFileEncodingOrUTF8AsFallback().displayName()); |
| } |
| } |