/** Check if the getSubBuilders properly predicts the output. */
  public static void testSubBuilders() throws Exception {
    Workspace ws = Workspace.getWorkspace(new File("test/ws"));
    Project project = ws.getProject("p4-sub");

    Collection<? extends Builder> bs = project.getSubBuilders();
    assertNotNull(bs);
    assertEquals(3, bs.size());
    Set<String> names = new HashSet<String>();
    for (Builder b : bs) {
      names.add(b.getBsn());
    }
    assertTrue(names.contains("p4-sub.a"));
    assertTrue(names.contains("p4-sub.b"));
    assertTrue(names.contains("p4-sub.c"));

    File[] files = project.build();
    assertTrue(project.check());

    System.err.println(Processor.join(project.getErrors(), "\n"));
    System.err.println(Processor.join(project.getWarnings(), "\n"));
    assertEquals(0, project.getErrors().size());
    assertEquals(0, project.getWarnings().size());
    assertNotNull(files);
    assertEquals(3, files.length);
    for (File file : files) {
      Jar jar = new Jar(file);
      Manifest m = jar.getManifest();
      assertTrue(names.contains(m.getMainAttributes().getValue("Bundle-SymbolicName")));
    }
  }
  /**
   * Tests the handling of the -sub facility
   *
   * @throws Exception
   */
  public static void testSub() throws Exception {
    Workspace ws = Workspace.getWorkspace(new File("test/ws"));
    Project project = ws.getProject("p4-sub");
    File[] files = project.build();
    Arrays.sort(files);

    System.err.println(Processor.join(project.getErrors(), "\n"));
    System.err.println(Processor.join(project.getWarnings(), "\n"));

    assertEquals(0, project.getErrors().size());
    assertEquals(0, project.getWarnings().size());
    assertNotNull(files);
    assertEquals(3, files.length);

    Jar a = new Jar(files[0]);
    Jar b = new Jar(files[1]);
    Manifest ma = a.getManifest();
    Manifest mb = b.getManifest();

    assertEquals("base", ma.getMainAttributes().getValue("Base-Header"));
    assertEquals("base", mb.getMainAttributes().getValue("Base-Header"));
    assertEquals("a", ma.getMainAttributes().getValue("Sub-Header"));
    assertEquals("b", mb.getMainAttributes().getValue("Sub-Header"));
  }