org.mockito.exceptions.misusing

Class UnnecessaryStubbingException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.mockito.exceptions.misusing.UnnecessaryStubbingException

All Implemented Interfaces:

Serializable

public class UnnecessaryStubbingException
extends RuntimeException

Unnecessary stubs are stubbed method calls that were never realized during test execution (see also MockitoHint), example:

 //code under test:
 ...
 String result = translator.translate("one")
 ...

 //test:
 ...
 when(translator.translate("one")).thenReturn("jeden"); // <- stubbing realized during code execution
 when(translator.translate("two")).thenReturn("dwa"); // <- stubbing never realized
 ...
 

Notice that one of the stubbed methods were never realized in the code under test, during test execution. The stray stubbing might be an oversight of the developer, the artifact of copy-paste or the effect not understanding the test/code. Either way, the developer ends up with unnecessary test code. In order to keep the codebase clean & maintainable it is necessary to remove unnecessary code. Otherwise tests are harder to read and reason about.

To find out more about detecting unused stubbings see MockitoHint.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UnnecessaryStubbingException(String message)

Method Summary

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

UnnecessaryStubbingException

public UnnecessaryStubbingException(String message)