| package org.eclipse.aether.util.graph.visitor; |
| |
| /* |
| * 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 static org.junit.Assert.*; |
| |
| import java.util.List; |
| |
| import org.eclipse.aether.graph.DependencyFilter; |
| import org.eclipse.aether.graph.DependencyNode; |
| import org.eclipse.aether.internal.test.util.DependencyGraphParser; |
| import org.junit.Test; |
| |
| public class PathRecordingDependencyVisitorTest |
| { |
| |
| private DependencyNode parse( String resource ) |
| throws Exception |
| { |
| return new DependencyGraphParser( "visitor/path-recorder/" ).parseResource( resource ); |
| } |
| |
| private void assertPath( List<DependencyNode> actual, String... expected ) |
| { |
| assertEquals( actual.toString(), expected.length, actual.size() ); |
| for ( int i = 0; i < expected.length; i++ ) |
| { |
| DependencyNode node = actual.get( i ); |
| assertEquals( actual.toString(), expected[i], node.getDependency().getArtifact().getArtifactId() ); |
| } |
| } |
| |
| @Test |
| public void testGetPaths_RecordsMatchesBeneathUnmatchedParents() |
| throws Exception |
| { |
| DependencyNode root = parse( "simple.txt" ); |
| |
| PathRecordingDependencyVisitor visitor = new PathRecordingDependencyVisitor( new ArtifactMatcher() ); |
| root.accept( visitor ); |
| |
| List<List<DependencyNode>> paths = visitor.getPaths(); |
| assertEquals( paths.toString(), 2, paths.size() ); |
| assertPath( paths.get( 0 ), "a", "b", "x" ); |
| assertPath( paths.get( 1 ), "a", "x" ); |
| } |
| |
| @Test |
| public void testGetPaths_DoesNotRecordMatchesBeneathMatchedParents() |
| throws Exception |
| { |
| DependencyNode root = parse( "nested.txt" ); |
| |
| PathRecordingDependencyVisitor visitor = new PathRecordingDependencyVisitor( new ArtifactMatcher() ); |
| root.accept( visitor ); |
| |
| List<List<DependencyNode>> paths = visitor.getPaths(); |
| assertEquals( paths.toString(), 1, paths.size() ); |
| assertPath( paths.get( 0 ), "x" ); |
| } |
| |
| @Test |
| public void testGetPaths_RecordsMatchesBeneathMatchedParentsIfRequested() |
| throws Exception |
| { |
| DependencyNode root = parse( "nested.txt" ); |
| |
| PathRecordingDependencyVisitor visitor = new PathRecordingDependencyVisitor( new ArtifactMatcher(), false ); |
| root.accept( visitor ); |
| |
| List<List<DependencyNode>> paths = visitor.getPaths(); |
| assertEquals( paths.toString(), 3, paths.size() ); |
| assertPath( paths.get( 0 ), "x" ); |
| assertPath( paths.get( 1 ), "x", "a", "y" ); |
| assertPath( paths.get( 2 ), "x", "y" ); |
| } |
| |
| @Test |
| public void testFilterCalledWithProperParentStack() |
| throws Exception |
| { |
| DependencyNode root = parse( "parents.txt" ); |
| |
| final StringBuilder buffer = new StringBuilder( 256 ); |
| DependencyFilter filter = new DependencyFilter() |
| { |
| public boolean accept( DependencyNode node, List<DependencyNode> parents ) |
| { |
| for ( DependencyNode parent : parents ) |
| { |
| buffer.append( parent.getDependency().getArtifact().getArtifactId() ); |
| } |
| buffer.append( "," ); |
| return false; |
| } |
| }; |
| |
| PathRecordingDependencyVisitor visitor = new PathRecordingDependencyVisitor( filter ); |
| root.accept( visitor ); |
| |
| assertEquals( ",a,ba,cba,a,ea,", buffer.toString() ); |
| } |
| |
| @Test |
| public void testGetPaths_HandlesCycles() |
| throws Exception |
| { |
| DependencyNode root = parse( "cycle.txt" ); |
| |
| PathRecordingDependencyVisitor visitor = new PathRecordingDependencyVisitor( new ArtifactMatcher(), false ); |
| root.accept( visitor ); |
| |
| List<List<DependencyNode>> paths = visitor.getPaths(); |
| assertEquals( paths.toString(), 4, paths.size() ); |
| assertPath( paths.get( 0 ), "a", "b", "x" ); |
| assertPath( paths.get( 1 ), "a", "x" ); |
| assertPath( paths.get( 2 ), "a", "x", "b", "x" ); |
| assertPath( paths.get( 3 ), "a", "x", "x" ); |
| } |
| |
| private static class ArtifactMatcher |
| implements DependencyFilter |
| { |
| public boolean accept( DependencyNode node, List<DependencyNode> parents ) |
| { |
| return node.getDependency() != null && node.getDependency().getArtifact().getGroupId().equals( "match" ); |
| } |
| } |
| |
| } |