[Junit-trackers] [ junit-Feature Requests-1674180 ] To support test methods with injection of parameters

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Feature Requests item #1674180, was opened at 2007-03-05 15:49
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Category: None
Group: None
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Jonhnny Weslley (jweslley)
Assigned to: David Saff (dsaff)
Summary: To support test methods with injection of parameters

Initial Comment:

    Recently, I need of parameterized test methods,
then used a Parameterized  runner, but this uses
constructor injection of parameters, and my unit
test has many test methods with distinct types.
Then I was create a ParameterizedMethod runner,
which uses method injection of parameters - parameterized test methods.

    The parameterized test methods requires a ParametersSource annotation, this annotation requires the parameters source method name. The parameters source method to must be no arguments, public, static, and, finally, to return a Collection or a array.

    However, to support this feature requires two little changes in junit:

1) org.junit.internal.runners.MethodValidator class renamed to TestClassValidator. The TestClassValidator is more extensible than MethodValidator, which allow to create a ParameterizedMethodValidator class, required for the new feature.

2) To add the TestClassValidator's factory method - createTestClassValidator method - at 
org.junit.internal.runners.TestClassRunner class.

The junit-parameterized-method.zip file has a copy from TestClassRunner class - called TestClassRunner2 - added of the createTestClassValidator method.

USAGE:
...

@Test
@ParametersSource("numbersEq") // refer to numbersEq method
public void checkGreaterThan(int x, int y) {
    assertTrue("x lower than y", x < y);
}

public static Integer[][] numbersEq() {
    return new Integer[][] {
	{1, 2}, 
        {2, 3}, 
	{3, 4}, 
	{4, 5}, 
	{5, 6}};
}

...


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>Comment By: SourceForge Robot (sf-robot)
Date: 2009-12-01 02:20

Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).

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Comment By: David Saff (dsaff)
Date: 2009-11-16 17:52

Message:
This tracker is being shut down.  Please move this item to
http://github.com/KentBeck/junit/issues

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Comment By: Alex (toalexsmail)
Date: 2008-03-12 21:34

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See related
http://sourceforge.net/tracker/index.php?func=detail&aid=1626414&group_id=15278&atid=365278

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Comment By: David Saff (dsaff)
Date: 2007-04-12 20:12

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Jonhnny, could you attach your changes as a patch so we can review it more
easily?  Thanks.

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Comment By: Jonhnny Weslley (jweslley)
Date: 2007-04-09 17:35

Message:
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I realize some refactorings in junit-4.3.1 to support this feature.
Changes:
    - Replacement of org.junit.internal.runners.MethodValidator class by
org.junit.internal.runners.TestClassValidator class.
    - Introduce factory method createTestClassValidator in
org.junit.internal.runners.TestClassRunner class
    - Introduce runner: org.junit.runners.ParameterizedMethod
    - Include a sample test class: org.junit.runners.IntDateTimeTest

File Added: junit.jar

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