| package org.apache.maven.shared.dependency.analyzer; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.commons.io.IOUtils; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.jar.JarOutputStream; |
| import java.util.zip.ZipEntry; |
| |
| import static org.junit.Assert.*; |
| |
| /** |
| * Tests <code>ClassFileVisitorUtils</code>. |
| * |
| * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a> |
| * @see ClassFileVisitorUtils |
| */ |
| public class ClassFileVisitorUtilsTest |
| { |
| private MockVisitor visitor; |
| |
| private static class MockVisitor implements ClassFileVisitor |
| { |
| final List<String> classNames = new ArrayList<>(); |
| final List<String> data = new ArrayList<>(); |
| |
| @Override |
| public void visitClass( String className, InputStream in ) |
| { |
| classNames.add( className ); |
| try |
| { |
| List<String> lines = IOUtils.readLines( in, StandardCharsets.UTF_8 ); |
| data.addAll( lines ); |
| } |
| catch ( IOException ex ) |
| { |
| throw new RuntimeException( ex ); |
| } |
| } |
| } |
| |
| @Before |
| public void setUp() |
| { |
| visitor = new MockVisitor(); |
| } |
| |
| @Test |
| public void testAcceptJar() throws IOException |
| { |
| File file = File.createTempFile( "test", ".jar" ); |
| file.deleteOnExit(); |
| |
| try ( JarOutputStream out = new JarOutputStream( new FileOutputStream( file ) ) ) |
| { |
| addZipEntry( out, "a/b/c.class", "class a.b.c" ); |
| addZipEntry( out, "x/y/z.class", "class x.y.z" ); |
| } |
| |
| ClassFileVisitorUtils.accept( file.toURI().toURL(), visitor ); |
| |
| assertTrue( visitor.classNames.contains( "a.b.c" ) ); |
| assertTrue( visitor.classNames.contains( "x.y.z" ) ); |
| assertTrue( visitor.data.contains( "class a.b.c" ) ); |
| assertTrue( visitor.data.contains( "class x.y.z" ) ); |
| } |
| |
| @Test |
| public void testAcceptJarWithNonClassEntry() throws IOException |
| { |
| File file = File.createTempFile( "test", ".jar" ); |
| file.deleteOnExit(); |
| |
| try ( JarOutputStream out = new JarOutputStream( new FileOutputStream( file ) ) ) |
| { |
| addZipEntry( out, "a/b/c.jpg", "jpeg a.b.c" ); |
| } |
| |
| ClassFileVisitorUtils.accept( file.toURI().toURL(), visitor ); |
| |
| assertTrue( visitor.classNames.isEmpty() ); |
| } |
| |
| @Test |
| public void testAcceptDir() throws IOException |
| { |
| Path dir = Files.createTempDirectory( "d-a-test" ); |
| |
| Path abDir = Files.createDirectories( dir.resolve( "a/b" ) ); |
| writeToFile( abDir, "c.class", "class a.b.c" ); |
| |
| Path xyDir = Files.createDirectories( dir.resolve( "x/y" ) ); |
| writeToFile( xyDir, "z.class", "class x.y.z" ); |
| |
| ClassFileVisitorUtils.accept( dir.toUri().toURL(), visitor ); |
| |
| FileUtils.deleteDirectory( dir.toFile() ); |
| |
| assertTrue( visitor.classNames.contains( "a.b.c" ) ); |
| assertTrue( visitor.classNames.contains( "x.y.z" ) ); |
| assertTrue( visitor.data.contains( "class a.b.c" ) ); |
| assertTrue( visitor.data.contains( "class x.y.z" ) ); |
| } |
| |
| @Test |
| public void testAcceptDirWithNonClassFile() throws IOException |
| { |
| Path dir = Files.createTempDirectory( "d-a-test" ); |
| |
| Path abDir = Files.createDirectories( dir.resolve( "a/b" ) ); |
| writeToFile( abDir, "c.jpg", "jpeg a.b.c" ); |
| |
| ClassFileVisitorUtils.accept( dir.toUri().toURL(), visitor ); |
| |
| FileUtils.deleteDirectory( dir.toFile() ); |
| |
| assertTrue( visitor.classNames.isEmpty() ); |
| } |
| |
| @Test |
| public void testAcceptWithFile() throws IOException |
| { |
| File file = File.createTempFile( "test", ".class" ); |
| file.deleteOnExit(); |
| |
| URL url = file.toURI().toURL(); |
| |
| try |
| { |
| ClassFileVisitorUtils.accept( url, visitor ); |
| fail( "expected IllegalArgumentException" ); |
| } |
| catch ( IllegalArgumentException exception ) |
| { |
| assertEquals( "Cannot accept visitor on URL: " + url, exception.getMessage() ); |
| } |
| } |
| |
| @Test |
| public void testAcceptWithUnsupportedScheme() throws IOException |
| { |
| URL url = new URL( "http://localhost/" ); |
| |
| try |
| { |
| ClassFileVisitorUtils.accept( url, visitor ); |
| fail( "expected IllegalArgumentException" ); |
| } |
| catch ( IllegalArgumentException exception ) |
| { |
| assertEquals( "Cannot accept visitor on URL: " + url, exception.getMessage() ); |
| } |
| } |
| |
| private void writeToFile( Path parent, String file, String data ) throws IOException |
| { |
| Files.write( parent.resolve( file ), data.getBytes( StandardCharsets.UTF_8 ) ); |
| } |
| |
| private void addZipEntry( JarOutputStream out, String fileName, String content ) throws IOException |
| { |
| out.putNextEntry( new ZipEntry( fileName ) ); |
| byte[] bytes = content.getBytes( StandardCharsets.UTF_8 ); |
| out.write( bytes, 0, bytes.length ); |
| } |
| } |