public void testRenderIncrement() throws IOException {
    Scale scale = new Scale(shell, SWT.NONE);

    scale.setIncrement(2);
    lca.renderChanges(scale);

    Message message = Fixture.getProtocolMessage();
    assertEquals(new Integer(2), message.findSetProperty(scale, "increment"));
  }
  public void testRenderIncrementUnchanged() throws IOException {
    Scale scale = new Scale(shell, SWT.NONE);
    Fixture.markInitialized(display);
    Fixture.markInitialized(scale);

    scale.setIncrement(2);
    Fixture.preserveWidgets();
    lca.renderChanges(scale);

    Message message = Fixture.getProtocolMessage();
    assertNull(message.findSetOperation(scale, "increment"));
  }