features-test-plugin/src/main/java/org/opendaylight/odlparent/features/test/plugin/PaxExamExecution.java

   1 /*
   2  * Copyright (c) 2024 PANTHEON.tech, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.odlparent.features.test.plugin;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.io.IOException;
  13 import java.io.OutputStream;
  14 import java.io.PrintStream;
  15 import java.nio.charset.StandardCharsets;
  16 import java.util.concurrent.atomic.AtomicBoolean;
  17 import org.apache.maven.plugin.MojoExecutionException;
  18 import org.ops4j.pax.exam.ExamSystem;
  19 import org.ops4j.pax.exam.TestContainer;
  20
  21 final class PaxExamExecution {
  22     private final TestContainer[] containers;
  23     private final ExamSystem examSystem;
  24     private final String localRepository;
  25
  26     PaxExamExecution(final String localRepository, final ExamSystem examSystem, final TestContainer ... containers) {
  27         this.localRepository = requireNonNull(localRepository);
  28         this.containers = containers;
  29         this.examSystem = examSystem;
  30     }
  31
  32     @SuppressWarnings({"IllegalCatch", "RegexpSinglelineJava"})
  33     void execute() throws MojoExecutionException {
  34
  35         // Use the same repository for Pax Exam as is used for Maven
  36         System.setProperty("org.ops4j.pax.url.mvn.localRepository", localRepository);
  37
  38         for (var container : containers) {
  39             // disable karaf stdout output to maven log
  40             final var stdout = System.out;
  41             System.setOut(new PrintStream(OutputStream.nullOutputStream(), true, StandardCharsets.UTF_8));
  42
  43             final var containerStarted = new AtomicBoolean(false);
  44             try {
  45                 container.start();
  46                 containerStarted.set(true);
  47
  48                 // build probe
  49                 final var probeBuilder = examSystem.createProbe();
  50                 final var address = probeBuilder.addTest(TestProbe.class, "testFeature");
  51                 probeBuilder.addTest(TestProbe.CheckResult.class);
  52
  53                 // install probe bundle
  54                 container.install(probeBuilder.build().getStream());
  55                 // execute probe testMethod
  56                 container.call(address);
  57
  58             } catch (RuntimeException | IOException e) {
  59                 throw new MojoExecutionException(e);
  60             } finally {
  61                 if (containerStarted.get()) {
  62                     container.stop();
  63                 }
  64                 // restore stdout
  65                 System.setOut(stdout);
  66             }
  67         }
  68     }
  69 }