/*
    * 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.apache.maven.project;
  
  import java.io.ByteArrayInputStream;
  import java.io.InputStream;
  import java.nio.charset.StandardCharsets;
  import java.util.Arrays;
  
  import junit.framework.TestCase;
  
  import static org.hamcrest.Matchers.empty;
  import static org.hamcrest.Matchers.is;
  import static org.junit.Assert.assertThat;
  
  /**
   * Tests {@link ExtensionDescriptorBuilder}.
   *
   * @author Benjamin Bentmann
   */
  public class ExtensionDescriptorBuilderTest extends TestCase {
  
      private ExtensionDescriptorBuilder builder;
  
      @Override
      protected void setUp() throws Exception {
          super.setUp();
  
          builder = new ExtensionDescriptorBuilder();
      }
  
      @Override
      protected void tearDown() throws Exception {
          builder = null;
  
          super.tearDown();
      }
  
      private InputStream toStream(String xml) {
          return new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8));
      }
  
      public void testEmptyDescriptor() throws Exception {
          String xml = "<extension></extension>";
  
          ExtensionDescriptor ed = builder.build(toStream(xml));
  
          assertNotNull(ed);
          assertNotNull(ed.getExportedPackages());
          assertThat(ed.getExportedPackages(), is(empty()));
          assertNotNull(ed.getExportedArtifacts());
          assertThat(ed.getExportedArtifacts(), is(empty()));
      }
  
      public void testCompleteDescriptor() throws Exception {
          String xml = "<?xml version='1.0' encoding='UTF-8'?>" + "<extension>" + "<exportedPackages>"
                  + "<exportedPackage>a</exportedPackage>" + "<exportedPackage>b</exportedPackage>"
                  + "<exportedPackage>c</exportedPackage>" + "</exportedPackages>" + "<exportedArtifacts>"
                  + "<exportedArtifact>x</exportedArtifact>" + "<exportedArtifact>y</exportedArtifact>"
                  + "<exportedArtifact> z </exportedArtifact>" + "</exportedArtifacts>" + "</extension>";
  
          ExtensionDescriptor ed = builder.build(toStream(xml));
  
          assertNotNull(ed);
          assertEquals(Arrays.asList("a", "b", "c"), ed.getExportedPackages());
          assertEquals(Arrays.asList("x", "y", "z"), ed.getExportedArtifacts());
      }
  }