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(what Im trying to do is run only certain tests via that task)

You need custom test task for this
&lt;https://docs.gradle.org/current/dsl/org.gradle.api.tasks.testing.Test.html|https://docs.gradle.org/current/dsl/org.gradle.api.tasks.testing.Test.html&gt;

So in your task instead of depending on particular task and pass arguments, create own version of this task

I'm not sure if I follow. That `test { }` block looks like a configuration for every / or the default test task, no?

how do they get the `gradlew someTestTask` at the end from it?

same thing here, the filtering <https://docs.gradle.org/current/userguide/java_testing.html>, it looks like it customizes what `gradlew test` runs afaik

There is no test block, there is a task with name "test" and type org.gradle.api.tasks.testing.Test, it has own config, you can change it, but you shouldn't do this from another task, even if it's possible, it's against best practices and very fragile itself

If you need a custom test runner, just create own instance of test task with required config

oh so that from your example translates to
```task test(type: Test) {
 
}```
?

i.e. I can rename it to
```myWhateverTest {
   ..
}```
?

I thought it was configuration for `gradlew test`

so In my top level build.gradle I added
```task myTest(type: Test) {
    group = "verification"

    include "com.myapp.foo.MessageManagerTest.class"
}```
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':myTest'.
&gt; java.lang.NullPointerException (no error message)

omg I think Im starting to figure out gradle .. the thing that looks like a function parameter, that is inheritance/delegation?????

Yes, it's syntax for task creation/configuration and Test is type of new task

any clue on as how to actually implement the custom task please? its still bitching about unknown dependencies of the task as above, I googled it should depends on `testClasses` but ofcourse such task doesnt exist in my `graldew tasks`. gradle is the worst, random attempts, sync run &amp; pray