Mocking methods of local scope objects with Mockito2.7












0















We are using Maven, Jersey, Mockito 2 in our project. The Mockito 2.7.5 with PowerMockito 1.7.4 dependency is causing some issues: Unable to Mock method of local scope variable. Here is my sample code:



import com.fasterxml.jackson.databind.ObjectMapper;
public Class Sample{
public String method1(String input){
ObjectMapper mapper = new ObjectMapper();
InputDO inputDO = mapper.readValue(input, InputDO.class);
}
}


Inside Test Class

@Test
public void testMethod(){
ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
InputDO = inputDO = Mockito.mock(InputDO.class);
doReturn(inputDO).when(mapper).readValue(anyString(), eq(InputDO.class));
Sample s = Mockito.mock(Ssample.class);
s.method1(anyString());
assertNotNull(s);
}


The Test is failing in mapper.raedValue(). Please help me in mocking the above steps.










share|improve this question

























  • can you share your Test class as well?

    – GauravRai1512
    Nov 16 '18 at 11:11











  • also the exact version of mockito and powermockito

    – Maciej Kowalski
    Nov 16 '18 at 11:13
















0















We are using Maven, Jersey, Mockito 2 in our project. The Mockito 2.7.5 with PowerMockito 1.7.4 dependency is causing some issues: Unable to Mock method of local scope variable. Here is my sample code:



import com.fasterxml.jackson.databind.ObjectMapper;
public Class Sample{
public String method1(String input){
ObjectMapper mapper = new ObjectMapper();
InputDO inputDO = mapper.readValue(input, InputDO.class);
}
}


Inside Test Class

@Test
public void testMethod(){
ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
InputDO = inputDO = Mockito.mock(InputDO.class);
doReturn(inputDO).when(mapper).readValue(anyString(), eq(InputDO.class));
Sample s = Mockito.mock(Ssample.class);
s.method1(anyString());
assertNotNull(s);
}


The Test is failing in mapper.raedValue(). Please help me in mocking the above steps.










share|improve this question

























  • can you share your Test class as well?

    – GauravRai1512
    Nov 16 '18 at 11:11











  • also the exact version of mockito and powermockito

    – Maciej Kowalski
    Nov 16 '18 at 11:13














0












0








0








We are using Maven, Jersey, Mockito 2 in our project. The Mockito 2.7.5 with PowerMockito 1.7.4 dependency is causing some issues: Unable to Mock method of local scope variable. Here is my sample code:



import com.fasterxml.jackson.databind.ObjectMapper;
public Class Sample{
public String method1(String input){
ObjectMapper mapper = new ObjectMapper();
InputDO inputDO = mapper.readValue(input, InputDO.class);
}
}


Inside Test Class

@Test
public void testMethod(){
ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
InputDO = inputDO = Mockito.mock(InputDO.class);
doReturn(inputDO).when(mapper).readValue(anyString(), eq(InputDO.class));
Sample s = Mockito.mock(Ssample.class);
s.method1(anyString());
assertNotNull(s);
}


The Test is failing in mapper.raedValue(). Please help me in mocking the above steps.










share|improve this question
















We are using Maven, Jersey, Mockito 2 in our project. The Mockito 2.7.5 with PowerMockito 1.7.4 dependency is causing some issues: Unable to Mock method of local scope variable. Here is my sample code:



import com.fasterxml.jackson.databind.ObjectMapper;
public Class Sample{
public String method1(String input){
ObjectMapper mapper = new ObjectMapper();
InputDO inputDO = mapper.readValue(input, InputDO.class);
}
}


Inside Test Class

@Test
public void testMethod(){
ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
InputDO = inputDO = Mockito.mock(InputDO.class);
doReturn(inputDO).when(mapper).readValue(anyString(), eq(InputDO.class));
Sample s = Mockito.mock(Ssample.class);
s.method1(anyString());
assertNotNull(s);
}


The Test is failing in mapper.raedValue(). Please help me in mocking the above steps.







java jersey mockito






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 '18 at 11:32







Harsha D G

















asked Nov 16 '18 at 11:06









Harsha D GHarsha D G

34




34













  • can you share your Test class as well?

    – GauravRai1512
    Nov 16 '18 at 11:11











  • also the exact version of mockito and powermockito

    – Maciej Kowalski
    Nov 16 '18 at 11:13



















  • can you share your Test class as well?

    – GauravRai1512
    Nov 16 '18 at 11:11











  • also the exact version of mockito and powermockito

    – Maciej Kowalski
    Nov 16 '18 at 11:13

















can you share your Test class as well?

– GauravRai1512
Nov 16 '18 at 11:11





can you share your Test class as well?

– GauravRai1512
Nov 16 '18 at 11:11













also the exact version of mockito and powermockito

– Maciej Kowalski
Nov 16 '18 at 11:13





also the exact version of mockito and powermockito

– Maciej Kowalski
Nov 16 '18 at 11:13












2 Answers
2






active

oldest

votes


















0














Make sure you:



1) Annotate test class with:



@RunWith(PowerMockRunner.class)
@PrepareForTest(ObjectMapper.class)


2) Add this as the first lines to you test method:



ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
PowerMockito.whenNew(ObjectMapper.class).withNoArguments().thenReturn(mapper);





share|improve this answer
























  • If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

    – Harsha D G
    Nov 16 '18 at 12:20











  • for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

    – Maciej Kowalski
    Nov 16 '18 at 13:07



















0














Test Fail because you create an Mock for ObjectMapper in Test Class but here Every time new ObjectMapper was creating with new keyword. So better will be



`class Test{
ObjectMapper ObjectMapperMock = new ObjectMapper();
ObjectMapper spymapper=spy(ObjectMapperMock);
doReturn(result).when(spymapper.readValue());
}


`






share|improve this answer


























  • ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

    – Harsha D G
    Nov 16 '18 at 11:39











  • Then Instead of using Mock use the Spy

    – Rohit Kumar
    Nov 16 '18 at 12:35














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2 Answers
2






active

oldest

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2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














Make sure you:



1) Annotate test class with:



@RunWith(PowerMockRunner.class)
@PrepareForTest(ObjectMapper.class)


2) Add this as the first lines to you test method:



ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
PowerMockito.whenNew(ObjectMapper.class).withNoArguments().thenReturn(mapper);





share|improve this answer
























  • If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

    – Harsha D G
    Nov 16 '18 at 12:20











  • for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

    – Maciej Kowalski
    Nov 16 '18 at 13:07
















0














Make sure you:



1) Annotate test class with:



@RunWith(PowerMockRunner.class)
@PrepareForTest(ObjectMapper.class)


2) Add this as the first lines to you test method:



ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
PowerMockito.whenNew(ObjectMapper.class).withNoArguments().thenReturn(mapper);





share|improve this answer
























  • If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

    – Harsha D G
    Nov 16 '18 at 12:20











  • for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

    – Maciej Kowalski
    Nov 16 '18 at 13:07














0












0








0







Make sure you:



1) Annotate test class with:



@RunWith(PowerMockRunner.class)
@PrepareForTest(ObjectMapper.class)


2) Add this as the first lines to you test method:



ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
PowerMockito.whenNew(ObjectMapper.class).withNoArguments().thenReturn(mapper);





share|improve this answer













Make sure you:



1) Annotate test class with:



@RunWith(PowerMockRunner.class)
@PrepareForTest(ObjectMapper.class)


2) Add this as the first lines to you test method:



ObjectMapper mapper = Mockito.mock(ObjectMapper.class);
PowerMockito.whenNew(ObjectMapper.class).withNoArguments().thenReturn(mapper);






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 16 '18 at 11:42









Maciej KowalskiMaciej Kowalski

13.1k72142




13.1k72142













  • If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

    – Harsha D G
    Nov 16 '18 at 12:20











  • for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

    – Maciej Kowalski
    Nov 16 '18 at 13:07



















  • If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

    – Harsha D G
    Nov 16 '18 at 12:20











  • for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

    – Maciej Kowalski
    Nov 16 '18 at 13:07

















If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

– Harsha D G
Nov 16 '18 at 12:20





If I add powemock-api-mockito 1.7.4 as dependency then all tests are failing. Might be because I'm using Mockito 2.7.

– Harsha D G
Nov 16 '18 at 12:20













for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

– Maciej Kowalski
Nov 16 '18 at 13:07





for 2.7 you need powermock 1.7.0 -> github.com/powermock/powermock/wiki/Mockito

– Maciej Kowalski
Nov 16 '18 at 13:07













0














Test Fail because you create an Mock for ObjectMapper in Test Class but here Every time new ObjectMapper was creating with new keyword. So better will be



`class Test{
ObjectMapper ObjectMapperMock = new ObjectMapper();
ObjectMapper spymapper=spy(ObjectMapperMock);
doReturn(result).when(spymapper.readValue());
}


`






share|improve this answer


























  • ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

    – Harsha D G
    Nov 16 '18 at 11:39











  • Then Instead of using Mock use the Spy

    – Rohit Kumar
    Nov 16 '18 at 12:35


















0














Test Fail because you create an Mock for ObjectMapper in Test Class but here Every time new ObjectMapper was creating with new keyword. So better will be



`class Test{
ObjectMapper ObjectMapperMock = new ObjectMapper();
ObjectMapper spymapper=spy(ObjectMapperMock);
doReturn(result).when(spymapper.readValue());
}


`






share|improve this answer


























  • ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

    – Harsha D G
    Nov 16 '18 at 11:39











  • Then Instead of using Mock use the Spy

    – Rohit Kumar
    Nov 16 '18 at 12:35
















0












0








0







Test Fail because you create an Mock for ObjectMapper in Test Class but here Every time new ObjectMapper was creating with new keyword. So better will be



`class Test{
ObjectMapper ObjectMapperMock = new ObjectMapper();
ObjectMapper spymapper=spy(ObjectMapperMock);
doReturn(result).when(spymapper.readValue());
}


`






share|improve this answer















Test Fail because you create an Mock for ObjectMapper in Test Class but here Every time new ObjectMapper was creating with new keyword. So better will be



`class Test{
ObjectMapper ObjectMapperMock = new ObjectMapper();
ObjectMapper spymapper=spy(ObjectMapperMock);
doReturn(result).when(spymapper.readValue());
}


`







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 16 '18 at 12:40

























answered Nov 16 '18 at 11:32









Rohit Kumar Rohit Kumar

12




12













  • ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

    – Harsha D G
    Nov 16 '18 at 11:39











  • Then Instead of using Mock use the Spy

    – Rohit Kumar
    Nov 16 '18 at 12:35





















  • ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

    – Harsha D G
    Nov 16 '18 at 11:39











  • Then Instead of using Mock use the Spy

    – Rohit Kumar
    Nov 16 '18 at 12:35



















ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

– Harsha D G
Nov 16 '18 at 11:39





ObjectMapper is a local variable to testMethod() and I can't change the Sample Class

– Harsha D G
Nov 16 '18 at 11:39













Then Instead of using Mock use the Spy

– Rohit Kumar
Nov 16 '18 at 12:35







Then Instead of using Mock use the Spy

– Rohit Kumar
Nov 16 '18 at 12:35




















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