JUnit is a unit testing framework for Java that is built into Eclipse. Eclipse allows you to easily create test case and test suite classes to write JUnit test code. JUnit uses annotations to identify test methods, which are typically contained in a test class. You can create JUnit test suites to combine multiple test classes and run them in a specified order. Eclipse provides support for creating and running JUnit tests through wizards and shortcuts. Running tests displays results in the JUnit view.

2. Introduction to JUnit
JUnit built into the Workbench. Eclipse allows you
to quickly create test case classes and test suite classes to
write your test code in. With Eclipse, Test Driven
Development (TDD), becomes very easy to organize and
implement.

3. Using JUnit
 Unit in version 4.x is a test framework which uses
annotations to identify methods that specify a test.
Typically these test methods are contained in a class
which is only used for testing. It is typically called a
Test class.

4. Create a JUnit test suite:
 If you have several test classes, you can combine them
into a test suite. Running a test suite will execute all
test classes in that suite in the specified order.
 When you to try to open the eclipse it will directly
show the project explorer as shown in the next slide.

5. Eclipse IDE
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Package
Explorer
Scrip View
console

6. Create a Project In eclipse
 File  New  Java
Project
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• Specify the project name
and click finish

7. Creating JUnit tests:
 Eclipse support for JUnit
 You can write the JUnit tests manually, but Eclipse
supports the creation of JUnit tests via wizards.
 For example, to create a JUnit test or a test class for an
existing class, right-click on your new class, select this
class in the Package Explorer view, right-click on it and
select New → JUnit Test Case.
 Alternatively you can also use the JUnit wizards
available
under File → New → Other... → Java → JUnit.

8. Jar Files are already in the Elipse:

9. Running JUnit tests:
 To run a test, select the class which contains the tests,
right-click on it and select Run-as → JUnit Test. This
starts JUnit and executes all test methods in this class.
 Eclipse provides the Alt+Shift+X, ,T shortcut to run
the test in the selected class. If you position the cursor
on one method name, this shortcut runs only the
selected test method.
 To see the result of an JUnit test, Eclipse uses
the JUnit view which shows the results of the tests. You
can also select individual unit tests in this view , right-
click on them and select Run to execute them again.

10. Public class Junit:

11. Concatenation of Strings Test:

12. Division of integers Test:

13. Addition of integers Test:

14. Multiplication of integers Test:

15. Square of integers Test:

16. Modulus of integers Test:

17. Subtraction of integers Test:

18. Create a JUnit test suite
 If you have several test classes, you can combine them
into a test suite. Running a test suite will execute all
test classes in that suite in the specified order.
 The following example code shows a test suite which
defines that two test classes should be executed. If you
want to add another test class you can add it
to @Suite.SuiteClasses statement.

19. Test Suite for All Tests:

20. Creating the test script inside the class
file
 Copy the code that was formatted in the selenium IDE
and paste it in the Eclipse IDE script template.
 Make sure the class name that you created and the
class name in the script are same
 Make sure that you have add the methods setUp and
tearDown
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21. Running the test through Eclipse
 Once the server is up go to the eclipse and right click on the
script.
 In that select Run As  JUnit Test. See the image below.
After this you will get will see that the script has run
successfully in the window that’s shown in the next slide.
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