It seems like this is intended. The documentation here:
http://junit.org/apidocs/org/junit/runners/Parameterized.html
When running a parameterized test class, instances are created for the
cross-product of the test methods and the test data elements.

If you think about it, how would junit figure out which are your instances
that require the parameters? I mean theres no way to figure out based on the
testThree method that this is the one that should be run with different
parameters.

Seems allright to me.

On Fri, Jul 3, 2009 at 15:27, kartik_krishnanand <
kartik_krishnanand@...> wrote:

>
>
> Hi,
>
> I tried to generate parameteric tests with JUnit 4.6. I don't know if this
> is an expected behavior.
>
> Test Code
>
> @RunWith(Parameterized.class)
> public class JUnit4Test {
>
> private String name;
>
> @BeforeClass
> public static void setUpOnceBeforeClass() throws Exception {
> System.out.println("Before Class");
> }
>
> @Before
> public void setUp() throws Exception {
> System.out.println("Before Method");
> }
>
> @After
> public void tearDown() throws Exception {
> System.out.println("After Method");
> }
>
> @AfterClass
> public static void tearDownOnceAfterClass() throws Exception {
> System.out.println("After Class");
> }
>
> @Test()
> public void testOne() throws Exception {
> System.out.println("One");
> }
>
> @Test
> public void testTwo() throws Exception {
> System.out.println("Two");
> }
>
> @Test
> public void testThree() throws Exception {
> System.out.println(this.name);
> }
>
> public JUnit4Test(String name) {
> this.name = name;
> }
>
> @Parameters
> public static Collection<Object[]> getNames() {
> return Arrays.asList(new Object[][] {
> {"Kartik"}, {"Rakesh"}, {"Ed"}
> });
> }
> }
>
> My output
>
> Before Class
> Before Method
> One
> After Method
> Before Method
> Two
> After Method
>
> Before Method
> Kartik
> After Method
> Before Method
> One
> After Method
> Before Method
> Two
> After Method
> Before Method
> Rakesh
> After Method
> Before Method
> One
> After Method
> Before Method
> Two
> After Method
> Before Method
> Ed
> After Method
> After Class
>
> It runs the unit tests three times. The testOne, testTwo outputs remain
> unchanged, the testThree output changes with the depending upon the name.
>
> Is this the expected behavior? I expected that testThree would run three
> times each with a different parameter. Does anyone know if there is a reason
> for this implementation.
>
>
>



--
Regards,
Puneet


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