Useful tips

What is Easymock capture?

by John A.

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.

How do you test void using 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.

Can you mock a private method?

For Mockito, there is no direct support to mock private and static methods. In order to test private methods, you will need to refactor the code to change the access to protected (or package) and you will have to avoid static/final methods. But, there are frameworks which support mocking for private and static methods.

How to write Mockito test case for private method?

  1. By using reflection, private methods can be called from test classes. In this case, //test method will be like this …
  2. If the private method calls any other private method, then we need to spy the object and stub the another method. The test class will be like //test method will be like this …

How does EasyMock work?

easymock. EasyMock: mock(…): generates a mock of the target class, be it a concrete class or an interface. Once created, a mock is in “recording” mode, meaning that EasyMock will record any action the Mock Object takes, and replay them in the “replay” mode.

What does EasyMock verify do?

Summary. 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. EasyMock verify() method is very similar to Mockito verify() method.

How do I verify in EasyMock?

Example with EasyMock. Verify()

  1. Step 1: Create an interface CalculatorService to provide mathematical functions.
  2. Step 2: Create a JAVA class to represent MathApplication.
  3. Step 3: Test the MathApplication class.
  4. Step 4: Execute test cases.
  5. Step 5: Verify the Result.

What does EasyMock Replay do?

The replay method is used to pass the mock from recording (where you record the method you expect to be called) to replaying state (where you actually test).

What does Whitebox setInternalState do?

setInternalState. Set the value of a field using reflection. This method will traverse the super class hierarchy until the first field of type fieldType is found. The value will then be assigned to this field.

How do you skip a call in JUnit?

What is JUnit @Ignore test annotation

  1. If you want to ignore a test method, use @Ignore along with @Test annotation.
  2. If you want to ignore all the tests of class, use @Ignore annotation at the class level.

Can we use Mockito and PowerMock together?

Of course you can – and probably will – use Mockito and PowerMock in the same JUnit test at some point of time.

The mock is instantiated by the runner at step 1. It is then set by the runner, to the listener field on step 2. The setUp method can be removed since all the initialization was done by the runner. On top of that, since EasyMock 3.3, if you need to use another runner on you tests, a JUnit rule is also available to you.

How do I replay a mock In EasyMock?

Replaying the Mocked Method Lastly, we’ll use the EasyMock.replay () method to change the mock to “replay” mode, so that the recorded actions can be replayed when called: Consequently, when we call the test method, the custom behavior defined should be executed.

Is EasyMock 3 binary compatibility with EasyMock 2?

These packages are meant to be used to extend EasyMock so they usually don’t need to be imported. EasyMock 3 still has a Class Extension project (although deprecated) to allow an easier migration from EasyMock 2 to EasyMock 3. It is a source not a binary compatibility.

How to use EasyMock and dexmaker in Android VM?

To perform class mocking, also add Objenesis to your classpath. EasyMock can be used on Android VM (Dalvik). Just add EasyMock and Dexmaker as dependencies of the apk project used to test your application. It is a good idea to exclude Cglib since Dexmaker is used instead.