### Question:
MenuInitializer { JSONObject emptyProperties() { final JSONObject jsonObject = makeJsonObject(); jsonObject.put("position", new JSONString("")); jsonObject.put("left", new JSONString("")); jsonObject.put("top", new JSONString("")); jsonObject.put("z-index", new JSONString("")); return jsonObject; } MenuInitializer(final Element menu,
                           final String dropDownClass); void init();  }### Answer:
@Test public void testEmptyProperties() { final JSONObject expectedJSONObject = mock(JSONObject.class); doReturn(expectedJSONObject).when(initializer).makeJsonObject(); final JSONObject actualJSONObject = initializer.emptyProperties(); verify(expectedJSONObject).put("position", new JSONString("")); verify(expectedJSONObject).put("left", new JSONString("")); verify(expectedJSONObject).put("top", new JSONString("")); verify(expectedJSONObject).put("z-index", new JSONString("")); assertEquals(expectedJSONObject, actualJSONObject); }