/*
 * 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
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 */
package org.eclipse.aether.util.graph.versions;

import org.eclipse.aether.collection.DependencyCollectionContext;
import org.eclipse.aether.collection.VersionFilter;
import org.eclipse.aether.collection.VersionFilter.VersionFilterContext;
import org.eclipse.aether.util.graph.version.ChainedVersionFilter;
import org.eclipse.aether.util.graph.version.HighestVersionFilter;
import org.eclipse.aether.util.graph.version.SnapshotVersionFilter;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

public class ChainedVersionFilterTest extends AbstractVersionFilterTest {

    @Test
    void testFilterVersions() throws Exception {
        VersionFilter filter =
                ChainedVersionFilter.newInstance(new SnapshotVersionFilter(), new HighestVersionFilter());
        VersionFilterContext ctx = newContext("g:a:[1,9]", "1", "2", "3-SNAPSHOT");
        filter.filterVersions(ctx);
        assertVersions(ctx, "2");
    }

    @Test
    void testDeriveChildFilter() {
        VersionFilter filter1 = new HighestVersionFilter();
        VersionFilter filter2 = new VersionFilter() {
            public void filterVersions(VersionFilterContext context) {}

            public VersionFilter deriveChildFilter(DependencyCollectionContext context) {
                return null;
            }
        };

        VersionFilter filter = ChainedVersionFilter.newInstance(filter1);
        assertSame(filter, derive(filter, "g:a:1"));

        filter = ChainedVersionFilter.newInstance(filter2);
        assertSame(null, derive(filter, "g:a:1"));

        filter = ChainedVersionFilter.newInstance(filter1, filter2);
        assertSame(filter1, derive(filter, "g:a:1"));

        filter = ChainedVersionFilter.newInstance(filter2, filter1);
        assertSame(filter1, derive(filter, "g:a:1"));
    }

    @SuppressWarnings("EqualsWithItself")
    @Test
    void testEquals() {
        VersionFilter filter = ChainedVersionFilter.newInstance(new HighestVersionFilter());
        assertNotEquals(null, filter);
        assertEquals(filter, filter);
        assertEquals(filter, ChainedVersionFilter.newInstance(new HighestVersionFilter()));
    }
}
