How do you make EasyMock?

Example

1. Step 1: Create an interface called 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 is EasyMock expect?

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. The times() method defines how often the Mock object will be called. The replay() method is called to make the Mock object available.

Which among the following are benefits of using EasyMock?

Benefits of EasyMock

• No Handwriting − No need to write mock objects on your own.
• Refactoring Safe − Renaming interface method names or reordering parameters will not break the test code as Mocks are created at runtime.
• Return value support − Supports return values.
• Exception support − Supports exceptions.

How does EasyMock work?

EasyMock has been the first dynamic Mock Object generator, relieving users of hand-writing Mock Objects, or generating code for them. EasyMock provides Mock Objects by generating them on the fly using Java proxy mechanism.

What is createNiceMock?

createNiceMock() creates a mock and sets the default implementation of each method of the mock. createMock() is used, then invoking the mock method throws assertion error.

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.

Can we use JMockit and Mockito together?

1. We can achieve Static method/constructor mocking by the combination of Mockito with Powermock. 1. Static method/constructor can be mocked directly in JMockit.

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 do you write test cases for private methods using PowerMock?

However Junit would not allow me to write a test case for a private method….PowerMock : How to test a private method

1. STEP 1: Add Maven jar files.
2. STEP 2: Create a class MyClass.java.
3. STEP 3: Write a test case for public method : my _public _method.
4. STEP 4: Use PowerMock’s WhiteboxImpl class to test a private method.

How do you write a test case for private methods?

The best way to test a private method is via another public method….From this article: Testing Private Methods with JUnit and SuiteRunner (Bill Venners), you basically have 4 options:

1. Don’t test private methods.
2. Give the methods package access.
3. Use a nested test class.
4. Use reflection.

What is expectLastCall EasyMock?

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 to get a mock object from EasyMock?

For many tests using EasyMock, we only need a static import of methods of org.easymock.EasyMock. To get a Mock Object, we need to Here is a first example: After activation in step 3, mock is a Mock Object for the Collaborator interface that expects no calls.

Can you use EasyMock in conjunction with JUnit?

EasyMock is a mock framework which can be easily used in conjunction with JUnit. The following description demonstrates the usage of EasyMock. EasyMock instantiates an object based on an interface or class.

How to check the Order of method calls In EasyMock?

On a Mock Object returned by a EasyMock.mock (), the order of method calls is not checked. If you would like a strict Mock Object that checks the order of method calls, use EasyMock. strict Mock () to create it. The equivalent annotation is @Mock (MockType.STRICT).

What does the createnicemock method do In EasyMock?

The createNiceMock() method creates a mock which returns default values for methods which are not overiden. A mock created with the Mock() method will fails in such a case. EasyMock has several methods which are used to configure the Mock object. The expect() method tells EasyMock to simulate a method with certain arguments.