How do you mock a void in EasyMock?
When we use expectLastCall() and andAnswer() to mock void methods, we can use getCurrentArguments() to get the arguments passed to the method and perform some action on it. Finally, we have to return null since we are mocking a void method.
What does EasyMock expectLastCall do?
The API doc for EasyMock says this about expectLastCall() : Returns the expectation setter for the last expected invocation in the current thread. This method is used for expected invocations on void methods.
How do you handle exceptions in EasyMock?
If you are explicitly testing for the exception then put a try-catch around the line you expect it to be thrown from (catching the narrowest version of the Exception you expect) and then set a boolean in the catch clause and the assert should be on the value of the boolean.
How do you mock a method in EasyMock?
It uses the basic EasyMock concepts of expect, replay and verify.
- Create mock instances for the objects you need to mock the method calls on, in this case the service and the stuffGetter .
- Write expectations for the method calls using the expect method.
- Replay the mock objects, in this case replay both of them.
What does EasyMock verify do?
EasyMock verify() method is used to make sure that all the stubbed methods are being utilized and there are no unexpected calls. The behavior for unexpected calls changes for nice mock objects where it doesn’t throw any error.
What is EasyMock capture?
September 22, 2008Written by Rommert de Bruijn. 2 Comments. EasyMock2 is a library that provides an easy way to create on-the-fly mock objects based on interfaces. It can be used in combination with JUnit to create simple and powerful unit tests.
What does EasyMock Reset do?
Resets the given mock object (more exactly: the control of the mock object). For details, see the EasyMock documentation.
What is the difference between EasyMock and Mockito?
Mockito is an open-source, Java-based mocking framework used in unit testing. EasyMock is an open-source, Java-based testing framework used for testing Java applications. The EasyMock framework is released under the Apache License. It allows the creation of mock objects of a given interface by using Java Reflection.
How does EasyMock work?
EasyMock instantiates an object based on an interface or class. EasyMock has several methods which are used to configure the Mock object. The expect() method tells EasyMock to simulate a method with certain arguments. The andReturn() method defines the return value of this method for the specified method parameters.
How do you mock a final class with EasyMock?
It’s impossible to mock a final class with pure EasyMock. You’ll have to add in something like PowerMock, which integrates well with EasyMock. Or you write a test that doesn’t require mocking of a final class.
How does EasyMock capture work?
Simple capture EasyMock has a feature called Capture which allows us to capture the arguments with which mocks are called, such that we can verify the argument values after having exercised the object being tested. It works something like this: Player player1Mock = createMock(Player.
Can you mock final methods?
Configure Mockito for Final Methods and Classes Before Mockito can be used for mocking final classes and methods, it needs to be configured. Mockito checks the extensions directory for configuration files when it is loaded. This file enables the mocking of final methods and classes.
Can you use expect ( ) In EasyMock void method?
EasyMock expect() method can’t be used to mock void methods. However, we can use expectLastCall() along with andAnswer() to mock void methods. EasyMock void method. When we use expectLastCall() and andAnswer() to mock void methods, we can use getCurrentArguments() to get the arguments passed to the method and perform some action on it.
How to use expectlastcall to mock a void?
However, we can use expectLastCall () along with andAnswer () to mock void methods. When we use expectLastCall () and andAnswer () to mock void methods, we can use getCurrentArguments () to get the arguments passed to the method and perform some action on it. Finally, we have to return null since we are mocking a void method.
What does expectlastcall do In EasyMock 2.2?
Since EasyMock 2.2, the object returned by expectLastCall () and expect (T value) provides the method andAnswer (IAnswer answer) which allows [you] to specify an implementation of the interface IAnswer that is used to create the return value or exception.
How to create a mock in Java EasyMock?
Create a mock. call expect(mock.[method call]).andReturn([result]) for each expected call. call mock.[method call], then EasyMock.expectLastCall() for each expected void call. call replay(mock) to switch from “record” mode to “playback” mode. inject the mock as needed. call the test method.