public void testSetQueryNullOrEmpty() {
Document document = createDocument();
// Setup the renderer
Renderer mockRenderer = EasyMock.createNiceMock(Renderer.class);
mockRenderer.addLineRenderer(anyObject(LineRenderer.class));
mockRenderer.removeLineRenderer(anyObject(LineRenderer.class));
replay(mockRenderer);
AppContext mockContext = createMockContext();
ViewportModel mockView = createMockViewport(document, 4);