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.python.virtualenv;
  
  import static org.junit.Assert.assertTrue;
  
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.util.Collection;
  import java.util.Set;
  
  import org.eclipse.steady.FileAnalysisException;
  import org.eclipse.steady.python.ProcessWrapperException;
  import org.eclipse.steady.python.pip.PipInstalledPackage;
  import org.eclipse.steady.shared.categories.Slow;
  import org.eclipse.steady.shared.json.model.ConstructId;
  import org.eclipse.steady.shared.util.FileUtil;
  import org.eclipse.steady.shared.util.StringList;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  public class VirtualenvWrapperTest {
  
    /**
     * Attention: Runs long...
     *
     * @throws IllegalArgumentException
     * @throws ProcessWrapperException
     * @throws FileAnalysisException
     */
    @Test
    @Category(Slow.class)
    public void testCreateVirtualenv()
        throws IllegalArgumentException, ProcessWrapperException, FileAnalysisException {
  
      // Create virtualenv
      final Path project = Paths.get("src", "test", "resources", "cf-helloworld");
      final VirtualenvWrapper vew = new VirtualenvWrapper(project);
      final Path ve_path = vew.getPathToVirtualenv();
      assertTrue(FileUtil.isAccessibleDirectory(ve_path));
  
      // Get packages
      final Set<PipInstalledPackage> packs = vew.getInstalledPackages();
      assertTrue(packs.size() >= 8);
  
      // Get rid of the project itself
      final Set<PipInstalledPackage> filtered_packs =
          PipInstalledPackage.filterUsingArtifact(
              packs, new StringList().add("cf-helloworld"), false);
      assertTrue(filtered_packs.size() >= 7);
  
      // Get SHA1 for every package
      for (PipInstalledPackage p : filtered_packs) {
        final String sha1 = p.getDigest();
        assertTrue(sha1 != null && !sha1.equals(""));
      }
  
      // Get constructs for every package
      for (PipInstalledPackage p : filtered_packs) {
        final Collection<ConstructId> constructs = p.getLibrary().getConstructs();
        assertTrue(constructs != null && constructs.size() > 0);
      }
    }
  }
  