JUnit 4 Test Suites

Question

How do I create test suites with JUnit 4?

All the documentation I've seen doesn't seem to be working for me. And if I use the Eclipse wizard it doesn't give me an option to select any of the test classes I have created.

Answer 1

import org.junit.runners.Suite;
import org.junit.runner.RunWith;

@RunWith(Suite.class)
@Suite.SuiteClasses({TestClass1.class, TestClass2.class})
public class TestSuite {
  //nothing
}

Answer 2

You can create a suite like so. For example an AllTest suite would look something like this.

package my.package.tests;

@RunWith(Suite.class)
@SuiteClasses({
    testMyService.class,
    testMyBackend.class,
    ...
})

public class AllTests {}

Now you can run this in a couple different ways:

1. right-click and run in Eclipse as Junit test
2. create a runable Java Application; Main class='org.junit.runner.JUnitCore' and Args='my.package.tests.AllTests'

3. run from the command line:

   $ java -cp build/classes/:/usr/share/java/junit4.jar:/usr/share/java/hamcrest-core.jar org.junit.runner.JUnitCore my.package.tests.AllTests
   

Answer 3

I think TestSuite has fallen out of favor. That might have been the style before 4.x, but it's not now as far as I know.

I just annotate the tests I want and then run the class. All the annotated tests are run. I might use Ant, but most of the time I have IntelliJ run them for me.

Answer 4

Here are the steps to create a JUnit suite in eclipse:

1. In the 'Package Explorer' view of the eclipse 'Java' perspective, select your unit test(s) in their package, inside the eclipse java project.
2. Right-click on any one of the selected tests.
3. In the pop-up menu, select New, Other…
4. Open the ‘Java’ folder, then open the ‘JUnit’ folder
5. Select ‘JUnit Test Suite’ and then select the ‘Next’ button
6. Select button ‘Finish’
7. Result: ‘AllTests.java’ suite file is created, with tests automatically included
8. Select the Run button in eclipse
9. Result: all tests in suite run
10. You can now point to this suite file with ANT, Jenkins or other build configuration continuous integration tool.

Version info: this is for eclipse Neon and JUnit 4. You can also select JUnit 3 before selecting 'Finish' in step 6.

Answer 5

Of the top of my head create a TestSuite and the invoke addTests. If you want somesource to look at try any opensource lib like hibernate or something from apache and take a look under the test directory of the source for a Tests suite ...