### Question:
CloudantRow { public int getKey() { return key; }  ToDo getValue(); void setValue(ToDo value); int getKey(); void setKey(int key); String getId(); void setId(String id); CloudantToDo getDoc(); void setDoc(CloudantToDo doc);  }### Answer:
@Test public void testGetKey() { CloudantRow row = new CloudantRow(); row.setKey(0); assertEquals(0, row.getKey()); }