How to setup VSCode + Metals to be able to run a FunSpec test that starts with it(...)?

[tanin47]

There's a run button. When I click it, no test is run.

The log looks like below:

MyTestSpec:
Execution took 0ms
No test suite was run

================================================================================
Total duration: 0ms

================================================================================

The class looks like below:

class MyTestSpec extends AnyFunSpec {
  it("random test") {

  }
}

But if I click run on MyTestSpec, it runs all the tests within that class, which is correct. However, I want to be able to run a specific test.

Thank you!

[tgodzik]

Looks like a bug, could you report the snippet in question? Or is it just as simple as in the description?

There is also a bunch of tests that you can take a look at, I don't exactly remember which styles are currently supported.

There was a recent PR in that area which can point you in the direction the test classes and how it's implemented https://github.com/scalameta/metals/pull/7512/changes

[tanin47]

Thank you. There might be a bug somewhere in findAnyFunSpecTests.

I can offer more data point. If I enclose it with describe like below:

class MyTestSpec extends AnyFunSpec {
  describe("test") {
    it("random test") {
  
    }
  }
}

Running a single test works fine in this case. This will be my workaround for now.

[tanin47]

My WILD guess is on this line:

metals/metals/src/main/scala/scala/meta/internal/metals/testProvider/frameworks/ScalatestTestFinder.scala

Line 279 in e70ead3

val testname = s"$prefix ${name.value}"

When there's no describe, the testname will be random test (notice the space as the first character) because prefix is an empty string.

If there is describe, the testname will be test random test, and this will match the test correctly.

[tgodzik]

Ok, the fix is here #8274

Tested that it actually works

[tanin47]

This is superb. Thank you so much for a quick fix.