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How can I access member variable of method of a class under test?

-2

1

Firstly I request to not mark it as duplicate of my previous question. It was incorrectly marked as duplicate and wrongly answered. Please read the question carefully and respond. Thanks..!!

So I want to access a member variable which has scope only inside the method which is to be tested during unit test of my controller class. So the code looks like below.

@Controller
public class testController(){

@Autowired
private Dependency dependency;

@RequestMapping("/SearchProject)
public String systemUnderTest()
// some logic
Integer[] totalrecords = new Integer[1];
List<SomeObject> aList = dependency.someMethod(.,.,totalRecords,.,.);
//some logic
int value = Math.ceil(totalrecords[0]/CONSTANT_VALUE);
return "string";

What is happening is totalRecords[0] is set to a value inside someMethod().

Now when I am unit testing it using standalone method of MockMvc, it is giving NPE at line where 'value' is accessed.

Is there any way I can access and set this 'value' or 'totalRecords[0]' variable during my test ? Let me know if any more details are needed.

java spring model-view-controller junit mockito

share|improve this question

edited Mar 24 at 4:36

aarish_codev

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Have the Dependency object as a MockBean, and set the mock with mockito so that when someMethod is called on it, it will set some test value inside the array.
  
  – kumesana
  Mar 21 at 17:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use constructor injection instead of field injection. In your test, provide a mock Dependency. Mock the behaviour of dependency.someMethod to populate the array.
  
  – Ben R.
  Mar 21 at 17:25
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I am already mocking the dependency and returning my custom List object from it using when(T).thenReturn(). But how to set the array[0] to a value I dont know.
  
  – aarish_codev
  Mar 21 at 17:44
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're basically asking why your test throws an exception, but you didn't post the exception stack trace, and you didn't post the code of your test...
  
  – JB Nizet
  Mar 22 at 11:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JBNizet I never asked why it throws exception.I already explained the reason for exception. 'IFF" you read the question carefully I don't think its hard to understand. Also look for the '?' sign while reading my question, you will know exactly what I'm asking. Thanks.
  
  – aarish_codev
  Mar 25 at 8:39
  

  
  
  
  

 | 
show 2 more comments

-2

1

Firstly I request to not mark it as duplicate of my previous question. It was incorrectly marked as duplicate and wrongly answered. Please read the question carefully and respond. Thanks..!!

So I want to access a member variable which has scope only inside the method which is to be tested during unit test of my controller class. So the code looks like below.

@Controller
public class testController(){

@Autowired
private Dependency dependency;

@RequestMapping("/SearchProject)
public String systemUnderTest()
// some logic
Integer[] totalrecords = new Integer[1];
List<SomeObject> aList = dependency.someMethod(.,.,totalRecords,.,.);
//some logic
int value = Math.ceil(totalrecords[0]/CONSTANT_VALUE);
return "string";

What is happening is totalRecords[0] is set to a value inside someMethod().

Now when I am unit testing it using standalone method of MockMvc, it is giving NPE at line where 'value' is accessed.

Is there any way I can access and set this 'value' or 'totalRecords[0]' variable during my test ? Let me know if any more details are needed.

java spring model-view-controller junit mockito

share|improve this question

edited Mar 24 at 4:36

aarish_codev

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Have the Dependency object as a MockBean, and set the mock with mockito so that when someMethod is called on it, it will set some test value inside the array.
  
  – kumesana
  Mar 21 at 17:18
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Use constructor injection instead of field injection. In your test, provide a mock Dependency. Mock the behaviour of dependency.someMethod to populate the array.
  
  – Ben R.
  Mar 21 at 17:25
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I am already mocking the dependency and returning my custom List object from it using when(T).thenReturn(). But how to set the array[0] to a value I dont know.
  
  – aarish_codev
  Mar 21 at 17:44
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You're basically asking why your test throws an exception, but you didn't post the exception stack trace, and you didn't post the code of your test...
  
  – JB Nizet
  Mar 22 at 11:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JBNizet I never asked why it throws exception.I already explained the reason for exception. 'IFF" you read the question carefully I don't think its hard to understand. Also look for the '?' sign while reading my question, you will know exactly what I'm asking. Thanks.
  
  – aarish_codev
  Mar 25 at 8:39
  

  
  
  
  

 | 
show 2 more comments

Firstly I request to not mark it as duplicate of my previous question. It was incorrectly marked as duplicate and wrongly answered. Please read the question carefully and respond. Thanks..!!

So I want to access a member variable which has scope only inside the method which is to be tested during unit test of my controller class. So the code looks like below.

@Controller
public class testController(){

@Autowired
private Dependency dependency;

@RequestMapping("/SearchProject)
public String systemUnderTest()
// some logic
Integer[] totalrecords = new Integer[1];
List<SomeObject> aList = dependency.someMethod(.,.,totalRecords,.,.);
//some logic
int value = Math.ceil(totalrecords[0]/CONSTANT_VALUE);
return "string";

What is happening is totalRecords[0] is set to a value inside someMethod().

Now when I am unit testing it using standalone method of MockMvc, it is giving NPE at line where 'value' is accessed.

Is there any way I can access and set this 'value' or 'totalRecords[0]' variable during my test ? Let me know if any more details are needed.

java spring model-view-controller junit mockito

share|improve this question

edited Mar 24 at 4:36

aarish_codev

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

@Controller
public class testController(){

@Autowired
private Dependency dependency;

@RequestMapping("/SearchProject)
public String systemUnderTest()
// some logic
Integer[] totalrecords = new Integer[1];
List<SomeObject> aList = dependency.someMethod(.,.,totalRecords,.,.);
//some logic
int value = Math.ceil(totalrecords[0]/CONSTANT_VALUE);
return "string";

share|improve this question

edited Mar 24 at 4:36

aarish_codev

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

share|improve this question

edited Mar 24 at 4:36

aarish_codev

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

asked Mar 21 at 17:05

aarish_codevaarish_codev

113

asked Mar 21 at 17:05

aarish_codevaarish_codev

113