| package org.eclipse.aether.util.graph.traverser; |
| |
| /* |
| * 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 org.eclipse.aether.artifact.DefaultArtifact; |
| import org.eclipse.aether.collection.DependencyCollectionContext; |
| import org.eclipse.aether.collection.DependencyTraverser; |
| import org.eclipse.aether.graph.Dependency; |
| import org.junit.Test; |
| |
| public class AndDependencyTraverserTest |
| { |
| |
| static class DummyDependencyTraverser |
| implements DependencyTraverser |
| { |
| |
| private final boolean traverse; |
| |
| private final DependencyTraverser child; |
| |
| public DummyDependencyTraverser() |
| { |
| this( true ); |
| } |
| |
| public DummyDependencyTraverser( boolean traverse ) |
| { |
| this.traverse = traverse; |
| this.child = this; |
| } |
| |
| public DummyDependencyTraverser( boolean traverse, DependencyTraverser child ) |
| { |
| this.traverse = traverse; |
| this.child = child; |
| } |
| |
| public boolean traverseDependency( Dependency dependency ) |
| { |
| return traverse; |
| } |
| |
| public DependencyTraverser deriveChildTraverser( DependencyCollectionContext context ) |
| { |
| return child; |
| } |
| |
| } |
| |
| @Test |
| public void testNewInstance() |
| { |
| assertNull( AndDependencyTraverser.newInstance( null, null ) ); |
| DependencyTraverser traverser = new DummyDependencyTraverser(); |
| assertSame( traverser, AndDependencyTraverser.newInstance( traverser, null ) ); |
| assertSame( traverser, AndDependencyTraverser.newInstance( null, traverser ) ); |
| assertSame( traverser, AndDependencyTraverser.newInstance( traverser, traverser ) ); |
| assertNotNull( AndDependencyTraverser.newInstance( traverser, new DummyDependencyTraverser() ) ); |
| } |
| |
| @Test |
| public void testTraverseDependency() |
| { |
| Dependency dependency = new Dependency( new DefaultArtifact( "g:a:v:1" ), "runtime" ); |
| |
| DependencyTraverser traverser = new AndDependencyTraverser(); |
| assertTrue( traverser.traverseDependency( dependency ) ); |
| |
| traverser = |
| new AndDependencyTraverser( new DummyDependencyTraverser( false ), new DummyDependencyTraverser( false ) ); |
| assertFalse( traverser.traverseDependency( dependency ) ); |
| |
| traverser = |
| new AndDependencyTraverser( new DummyDependencyTraverser( true ), new DummyDependencyTraverser( false ) ); |
| assertFalse( traverser.traverseDependency( dependency ) ); |
| |
| traverser = |
| new AndDependencyTraverser( new DummyDependencyTraverser( true ), new DummyDependencyTraverser( true ) ); |
| assertTrue( traverser.traverseDependency( dependency ) ); |
| } |
| |
| @Test |
| public void testDeriveChildTraverser_Unchanged() |
| { |
| DependencyTraverser other1 = new DummyDependencyTraverser( true ); |
| DependencyTraverser other2 = new DummyDependencyTraverser( false ); |
| DependencyTraverser traverser = new AndDependencyTraverser( other1, other2 ); |
| assertSame( traverser, traverser.deriveChildTraverser( null ) ); |
| } |
| |
| @Test |
| public void testDeriveChildTraverser_OneRemaining() |
| { |
| DependencyTraverser other1 = new DummyDependencyTraverser( true ); |
| DependencyTraverser other2 = new DummyDependencyTraverser( false, null ); |
| DependencyTraverser traverser = new AndDependencyTraverser( other1, other2 ); |
| assertSame( other1, traverser.deriveChildTraverser( null ) ); |
| } |
| |
| @Test |
| public void testDeriveChildTraverser_ZeroRemaining() |
| { |
| DependencyTraverser other1 = new DummyDependencyTraverser( true, null ); |
| DependencyTraverser other2 = new DummyDependencyTraverser( false, null ); |
| DependencyTraverser traverser = new AndDependencyTraverser( other1, other2 ); |
| assertNull( traverser.deriveChildTraverser( null ) ); |
| } |
| |
| @Test |
| public void testEquals() |
| { |
| DependencyTraverser other1 = new DummyDependencyTraverser( true ); |
| DependencyTraverser other2 = new DummyDependencyTraverser( false ); |
| DependencyTraverser traverser1 = new AndDependencyTraverser( other1, other2 ); |
| DependencyTraverser traverser2 = new AndDependencyTraverser( other2, other1 ); |
| DependencyTraverser traverser3 = new AndDependencyTraverser( other1 ); |
| assertEquals( traverser1, traverser1 ); |
| assertEquals( traverser1, traverser2 ); |
| assertNotEquals( traverser1, traverser3 ); |
| assertNotEquals( traverser1, this ); |
| assertNotEquals( traverser1, null ); |
| } |
| |
| @Test |
| public void testHashCode() |
| { |
| DependencyTraverser other1 = new DummyDependencyTraverser( true ); |
| DependencyTraverser other2 = new DummyDependencyTraverser( false ); |
| DependencyTraverser traverser1 = new AndDependencyTraverser( other1, other2 ); |
| DependencyTraverser traverser2 = new AndDependencyTraverser( other2, other1 ); |
| assertEquals( traverser1.hashCode(), traverser2.hashCode() ); |
| } |
| |
| } |