maven-resolver-util/src/test/java/org/eclipse/aether/util/graph/transformer/SimpleOptionalitySelectorTest.java

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 * distributed with this work for additional information
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 * 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
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 * Unless required by applicable law or agreed to in writing,
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package org.eclipse.aether.util.graph.transformer;

import org.eclipse.aether.collection.DependencyGraphTransformer;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.internal.test.util.DependencyGraphParser;
import org.junit.Test;

import static org.junit.Assert.*;

public class SimpleOptionalitySelectorTest extends AbstractDependencyGraphTransformerTest {

    @Override
    protected DependencyGraphTransformer newTransformer() {
        return new ConflictResolver(
                new NearestVersionSelector(), new JavaScopeSelector(),
                new SimpleOptionalitySelector(), new JavaScopeDeriver());
    }

    @Override
    protected DependencyGraphParser newParser() {
        return new DependencyGraphParser("transformer/optionality-selector/");
    }

    @Test
    public void testDeriveOptionality() throws Exception {
        DependencyNode root = parseResource("derive.txt");
        assertSame(root, transform(root));

        assertEquals(2, root.getChildren().size());
        assertTrue(root.getChildren().get(0).getDependency().isOptional());
        assertTrue(
                root.getChildren().get(0).getChildren().get(0).getDependency().isOptional());
        assertFalse(root.getChildren().get(1).getDependency().isOptional());
        assertFalse(
                root.getChildren().get(1).getChildren().get(0).getDependency().isOptional());
    }

    @Test
    public void testResolveOptionalityConflict_NonOptionalWins() throws Exception {
        DependencyNode root = parseResource("conflict.txt");
        assertSame(root, transform(root));

        assertEquals(2, root.getChildren().size());
        assertTrue(root.getChildren().get(0).getDependency().isOptional());
        assertFalse(
                root.getChildren().get(0).getChildren().get(0).getDependency().isOptional());
    }

    @Test
    public void testResolveOptionalityConflict_DirectDeclarationWins() throws Exception {
        DependencyNode root = parseResource("conflict-direct-dep.txt");
        assertSame(root, transform(root));

        assertEquals(2, root.getChildren().size());
        assertTrue(root.getChildren().get(1).getDependency().isOptional());
    }
}