/** Check isStale */
  public static void testIsStale() throws Exception {
    Workspace ws = Workspace.getWorkspace(new File("test/ws"));
    ws.setOffline(false);
    Project top = ws.getProject("p-stale");
    assertNotNull(top);
    top.build();
    Project bottom = ws.getProject("p-stale-dep");
    assertNotNull(bottom);
    bottom.build();

    long lastModified = bottom.lastModified();
    top.getPropertiesFile().setLastModified(lastModified + 1000);

    stale(top, true);
    stale(bottom, true);
    assertTrue(top.isStale());
    assertTrue(bottom.isStale());

    stale(top, false);
    stale(bottom, true);
    assertTrue(top.isStale());
    assertTrue(bottom.isStale());

    stale(top, true);
    stale(bottom, false);
    assertTrue(top.isStale());
    assertFalse(bottom.isStale());

    // Thread.sleep(1000);
    // stale(top, false);
    // stale(bottom, false);
    // assertFalse(top.isStale());
    // assertFalse(bottom.isStale());
  }
  /** 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")));
    }
  }
  public static void testOutofDate() throws Exception {
    Workspace ws = Workspace.getWorkspace(new File("test/ws"));
    Project project = ws.getProject("p3");
    File bnd = new File("test/ws/p3/bnd.bnd");
    assertTrue(bnd.exists());

    project.clean();
    File pt = project.getTarget();
    if (!pt.exists() && !pt.mkdirs()) {
      throw new IOException("Could not create directory " + pt);
    }
    try {
      // Now we build it.
      File[] files = project.build();
      System.err.println(project.getErrors());
      System.err.println(project.getWarnings());
      assertTrue(project.isOk());
      assertNotNull(files);
      assertEquals(1, files.length);

      // Now we should not rebuild it
      long lastTime = files[0].lastModified();
      files = project.build();
      assertEquals(1, files.length);
      assertTrue(files[0].lastModified() == lastTime);

      Thread.sleep(2000);

      project.updateModified(System.currentTimeMillis(), "Testing");
      files = project.build();
      assertEquals(1, files.length);
      assertTrue("Must have newer files now", files[0].lastModified() > lastTime);
    } finally {
      project.clean();
    }
  }
  /**
   * 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"));
  }