code: /**
   * This file is part of Eclipse Steady.
   *
   * Licensed 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.cli;
  
  import static org.junit.Assert.assertTrue;
  
  import java.io.File;
  import java.util.ServiceLoader;
  
  import org.eclipse.steady.DirAnalyzer;
  import org.eclipse.steady.FileAnalyzer;
  import org.eclipse.steady.FileAnalyzerFactory;
  import org.eclipse.steady.java.JavaFileAnalyzer2;
  import org.eclipse.steady.python.PythonFileAnalyzer;
  import org.junit.Test;
  
  public class FileAnalyzerTest {
  
    /**
     * Checks whether the well-known FileAnaylyzers can be found.
     */
    @Test
    public void testPresenceOfWellknownFileAnalyzers() {
      int i = 0;
      final ServiceLoader<FileAnalyzer> loader = ServiceLoader.load(FileAnalyzer.class);
      for (FileAnalyzer la : loader) {
        i++;
        System.out.println("File analyzer #" + i + ": " + la.getClass().getName());
      }
      assertTrue(i >= 7);
    }
  
    /**
     * Checks whether some of the well-known FileAnaylyzer are returned by the FileAnalyzerFactory.
     */
    @Test
    public void testWellknownFileAnalyzers() {
      final File py = new File("./src/test/resources/file.py");
      FileAnalyzer fa = FileAnalyzerFactory.buildFileAnalyzer(py);
      assertTrue(fa instanceof PythonFileAnalyzer);
  
      final File d = new File("./src/test/resources");
      fa = FileAnalyzerFactory.buildFileAnalyzer(d);
      assertTrue(fa instanceof DirAnalyzer);
  
      final File ja = new File("./src/test/resources/file.java");
      fa = FileAnalyzerFactory.buildFileAnalyzer(ja);
      assertTrue(fa instanceof JavaFileAnalyzer2);
    }
  }
  