@Test
  public void test_resourceExists() {
    when(wiki.doesResourceExist(proj, "/bar.png")).thenReturn(false);

    assertFalse(wikiHtmlEmitter.doesResourceExist("/bar.png"));

    when(wiki.doesResourceExist(proj, "/foo.png")).thenReturn(true);

    assertTrue(wikiHtmlEmitter.doesResourceExist("/foo.png"));
  }
 @Test
 public void test_getTitle_fragment() {
   DocTarget target = new DocTarget();
   target.uri = "/yes2";
   target.frag = "frag";
   when(wiki.fileUri("/yes2.html")).thenReturn("/yes2.txt");
   when(wiki.doesResourceExist(proj, "/yes2.txt")).thenReturn(true);
   when(wiki.getTitle(proj, "/yes2.html")).thenReturn("ok2");
   assertEquals("ok2 ยป frag", wikiHtmlEmitter.getTitle(target));
   assertEquals(0, wikiHtmlEmitter.getErrors().size());
 }