EasyMock Tutorial for Beginners – Learn EasyMock in simple and easy steps starting Environment Setup, First Application, JUnit Integration, Adding Behavior. EasyMock JUnit Integration – Learn EasyMock Programming in simple and easy steps starting from Overview, Environment Setup, First Application, JUnit. EasyMock is then used to emulate objects to enable Junit to test each object in isolation. You should be able to run tests with JUnit from Eclipse after reading this .

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You own instantiator which only needs to implement IClassInstantiator. Here, I don’t want the document received by voteForRemovals to be equals, I want it to be the exact same class instance coming from the cache. It is a source not a binary compatibility. amd

JUnit Testing Using EasyMock

This circumstance imposes some logical restrictions on development. It contains four stages. This reference card will guide you through the creation of unit tests with JUnit and EasyMock.

In this case only the methods added with addMockedMethod s will be mocked mockedMethod in the example. Used to indicate a test method. This is used for parameter driven tests. In order to be easympck to test code in isolation, those dependencies need to be removed to prevent any impact on test code by the dependant code. Similar idea is used when using spring to inject dummy implementations into JUnit. This can be handy to make sure a thread-unsafe mocked object is used correctly.


Dierk Koenig, Canoo AG.

Installation Requirements EasyMock 3. Assertions are an essential part of each test, because all manipulations in a test should be checked in the end of it. There are many frameworks for mocking; Mockito and EasyMock are two of the most iunit frameworks. Testing is about running code with a predictable set of inputs and verifying that the set of outputs you receive are as expected.

Testing with EasyMock – Tutorial

If it is not thrown, the test is considered a failure indicated by the fail call. If test requires interaction with some external object you should mock it. Teardown public void tearDown Called to do any required post processing after a test. If Developer 1 has to use the persistence logic code method call written by Developer 2, then Dev 1 might mock that method call.

Recording your favorite song. Asserting that a line was logged by Logback.

Void Methods Void juunit are the easiest behavior to record. Figure 3 shows two test cases, one using JUnit 3. When replaying recorded behavior in EasyMock, EasyMock uses the.

During recording, a mock is not thread-safe.

Unexpected method call documentAdded “Wrong title”: Arrays are by default since 3. EasyMock is a mock framework which can be easily used in conjunction with JUnit. If the method call is executed too often, the Mock Object jubit, too: In order to avoid code duplication I need to develop an abstract class for the eaysmock. All of these libraries are compliments to any of the above Unit Testing frameworks I listed, including jUnit.

Finally, calling checkIsUsedInOneThread mock, true on a mock will make sure juniit mock is used in only one thread and throw an exception otherwise. Methods in the Abstract Container are self explained, so there is no need to stop on them in detail. This phase records the expected behaviors of the mock ane. Sometimes, we would like our Mock Object to respond to some method calls, but we do not want to check how often they are called, when they are called, or even if they are called at all.


The best way is easmock provide mocks to the class which should be tested. The method times defines how often the Mock object will be called. Accepts any String that starts with, contains or ends with the specified String.

These eawymock be verified at the end. Refcard JUnit and EasyMock. Annotate a method with org. Proxy, but seems like you saved us lot of trouble. Used to temporarily exclude a test method from test execution. Emulation of form submission, JavaScript, basic http authentication, cookies and page redirection are all supported. In order for a test to pass, the expected behaviors must have been executed. The internet holds a large collection of resources on test driven development, JUnit and EasyMock.

One is intended for creation and manipulation of mock objects that are based on interfaces, the other on classes org.