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    * 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.plugins.invoker;
  
  import java.io.File;
  import java.io.Reader;
  import java.util.Map;
  import java.util.Properties;
  
  import org.apache.maven.model.Scm;
  import org.apache.maven.plugin.testing.AbstractMojoTestCase;
  import org.apache.maven.plugin.testing.stubs.MavenProjectStub;
  import org.apache.maven.settings.Settings;
  import org.codehaus.plexus.util.IOUtil;
  import org.codehaus.plexus.util.ReaderFactory;
  
  /**
   * @author Olivier Lamy
   * @since 22 nov. 07
   */
  public class InterpolationTest extends AbstractMojoTestCase {
  
      protected MavenProjectStub buildMavenProjectStub() {
          ExtendedMavenProjectStub project = new ExtendedMavenProjectStub();
          project.setVersion("1.0-SNAPSHOT");
          project.setArtifactId("foo");
          project.setGroupId("bar");
          Properties properties = new Properties();
          properties.put("fooOnProject", "barOnProject");
          project.setProperties(properties);
          Scm scm = new Scm();
          scm.setConnection("http://blabla");
          project.setScm(scm);
          return project;
      }
  
      public void testCompositeMap() {
  
          Properties properties = new Properties();
          properties.put("foo", "bar");
          properties.put("version", "2.0-SNAPSHOT");
          CompositeMap compositeMap = new CompositeMap(buildMavenProjectStub(), (Map) properties, false);
          assertEquals("1.0-SNAPSHOT", compositeMap.get("pom.version"));
          assertEquals("bar", compositeMap.get("foo"));
          assertEquals("bar", compositeMap.get("pom.groupId"));
          assertEquals("http://blabla", compositeMap.get("pom.scm.connection"));
          assertEquals("barOnProject", compositeMap.get("fooOnProject"));
      }
  
      public void testPomInterpolation() throws Exception {
          Reader reader = null;
          File interpolatedPomFile;
          try {
              InvokerMojo invokerMojo = new InvokerMojo();
              setVariableValueToObject(invokerMojo, "project", buildMavenProjectStub());
              setVariableValueToObject(invokerMojo, "settings", new Settings());
              Properties properties = new Properties();
              properties.put("foo", "bar");
              properties.put("version", "2.0-SNAPSHOT");
              setVariableValueToObject(invokerMojo, "filterProperties", properties);
              String dirPath =
                      getBasedir() + File.separatorChar + "src" + File.separatorChar + "test" + File.separatorChar
                              + "resources" + File.separatorChar + "unit" + File.separatorChar + "interpolation";
  
              interpolatedPomFile = new File(getBasedir(), "target/interpolated-pom.xml");
              invokerMojo.buildInterpolatedFile(new File(dirPath, "pom.xml"), interpolatedPomFile);
              reader = ReaderFactory.newXmlReader(interpolatedPomFile);
              String content = IOUtil.toString(reader);
              assertTrue(content.indexOf("<interpolateValue>bar</interpolateValue>") > 0);
              reader.close();
              reader = null;
              // recreate it to test delete if exists before creation
              invokerMojo.buildInterpolatedFile(new File(dirPath, "pom.xml"), interpolatedPomFile);
              reader = ReaderFactory.newXmlReader(interpolatedPomFile);
              content = IOUtil.toString(reader);
              assertTrue(content.indexOf("<interpolateValue>bar</interpolateValue>") > 0);
              reader.close();
              reader = null;
          } finally {
              IOUtil.close(reader);
          }
      }
  }