private FakeTicker fakeTicker;

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    fakeTicker = new FakeTicker();
  }

  public void testLoader() throws ExecutionException {

    final Cache<Integer, Integer> cache = CacheBuilder.newBuilder().build();

    Callable<Integer> loader =
        new Callable<Integer>() {
          private int i = 0;

    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());
    assertEquals(STRING, sink.getString());
  }

  public void testWriteFromStream_doesNotCloseThatStream() throws IOException {
    TestReader in = new TestReader();
    assertFalse(in.closed());
    sink.writeFrom(in);
    assertFalse(in.closed());
  }

  public void testWriteLines_withSpecificSeparator() throws IOException {