/*
    * 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.
   */
  package org.eclipse.aether.util.graph.versions;
  
  import java.util.Iterator;
  
  import org.eclipse.aether.DefaultRepositorySystemSession;
  import org.eclipse.aether.artifact.DefaultArtifact;
  import org.eclipse.aether.collection.VersionFilter;
  import org.eclipse.aether.graph.Dependency;
  import org.eclipse.aether.internal.test.util.TestUtils;
  import org.eclipse.aether.resolution.VersionRangeRequest;
  import org.eclipse.aether.resolution.VersionRangeResult;
  import org.eclipse.aether.util.version.GenericVersionScheme;
  import org.eclipse.aether.version.InvalidVersionSpecificationException;
  import org.eclipse.aether.version.Version;
  import org.eclipse.aether.version.VersionScheme;
  import org.junit.After;
  import org.junit.Before;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  public abstract class AbstractVersionFilterTest {
  
      protected DefaultRepositorySystemSession session;
  
      @Before
      public void setUp() {
          session = TestUtils.newSession();
      }
  
      @After
      public void tearDown() {
          session = null;
      }
  
      protected VersionFilter.VersionFilterContext newContext(String gav, String... versions) {
          VersionRangeRequest request = new VersionRangeRequest();
          request.setArtifact(new DefaultArtifact(gav));
          VersionRangeResult result = new VersionRangeResult(request);
          VersionScheme scheme = new GenericVersionScheme();
          try {
              result.setVersionConstraint(
                      scheme.parseVersionConstraint(request.getArtifact().getVersion()));
              for (String version : versions) {
                  result.addVersion(scheme.parseVersion(version));
              }
          } catch (InvalidVersionSpecificationException e) {
              throw new IllegalArgumentException(e);
          }
          return TestUtils.newVersionFilterContext(session, result);
      }
  
      protected VersionFilter derive(VersionFilter filter, String gav) {
          return filter.deriveChildFilter(
                  TestUtils.newCollectionContext(session, new Dependency(new DefaultArtifact(gav), ""), null));
      }
  
      protected void assertVersions(VersionFilter.VersionFilterContext context, String... versions) {
          assertEquals(versions.length, context.getCount());
          Iterator<Version> it = context.iterator();
          for (String version : versions) {
              assertTrue(it.hasNext());
              assertEquals(version, it.next().toString());
          }
      }
  }