I was literally suffering to understand spy by words. Thanks to you now!
@RamapatiMaurya
2 жыл бұрын
A person can learn more and put more attention if you show him/ her with error cases. Better to do like that way
@kekiir
Жыл бұрын
clear explanation!
@AhmadShahwaiz
4 жыл бұрын
Beautifully explained
@MaggicBones
3 жыл бұрын
A M A Z I N G !!!
@shankars4281
2 жыл бұрын
So, when we use mock, we can't do below thing, since we it doesn't creates real object? List arrayList = mock(ArrayList.class); arrayList.add("sss"); assertEquals(1,arrayList.size());
@thegamerz5034
2 жыл бұрын
Yes, when we use Mock, we can't do below thing. This is because to create a stub of a specific method of a class, the return type needs to be the same as the real implementation. List.add() returns a boolean and not a new list with the added object. This makes it so that we can't return a list with "sss" when we do .add for a Mocked arraylist. For example: //Spy: //Given List spyArrayList = Mockito.spy(new ArrayList()); //When spyArrayList.add("sss"); //Then assertEquals(1, spyArrayList.size()); // This will return true. // For a mock, you need to DEFINE a stub // for each method. Because the logic is gone. // You have to specifically tell what outcome it should return for a specific input. //Mock: //Given List mockArrayList = Mockito.mock(ArrayList.class); List listWeWantNack = new ArrayList(List.of("sss")); //Next line doesn't work, since we can't specify a return type of arraylist, //because .add expects a boolean back. //This means we can't return an added list of stuff, because we can't override the .add method of list. //Mockito.when(mockArrayList.add("sss")).thenReturn(listWeWantNack); Sidenote: A Spy gives the same utility as the real implementation as you can see in the example, but you can specifically stub specific methods with a spy. This is quite powerful, since you don't have to specify what to return for every method of a mocked class, unlike a Mock where you have to specify what to return for EVERY method. This is why a Spy is called "partially mocked".
@umeshkumarroy5804
3 жыл бұрын
Really Great
@maheshbeesetty5979
5 жыл бұрын
Great
@SanjeevSharma123
7 жыл бұрын
great videos thank you :)
@chaitanyabag7348
7 жыл бұрын
Good and comprehensive video
@prasannakumarattuluri7650
6 жыл бұрын
its a good tutorial and clear one :)
@preethikashenoy
7 жыл бұрын
Please add a tutorial on mocking SQLiteDatabase. Thanks in advance.
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