typelevel / typelevel/munit-cats-effect
Stack traces do not start in test method
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- Dominant language
- Scala
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- 40
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Description
//> using dep org.scalameta::munit::1.1.0
//> using dep org.typelevel::munit-cats-effect::2.1.0
import cats.effect.IO
import munit.CatsEffectSuite
object Service {
def op(): IO[String] = IO.delay(throw new Error("expected"))
}
class ServiceSpec extends CatsEffectSuite {
test("call directly") {
Service.op()
}
}
% scala-cli test ServiceTest.scala
Compiling project (Scala 3.6.4, JVM (17))
Compiled project (Scala 3.6.4, JVM (17))
ServiceSpec:
==> X ServiceSpec.call directly 0.062s java.lang.Error: expected
at Service$.op$$anonfun$1(ServiceTest.scala:8)
at delay @ Service$.op(ServiceTest.scala:8)
at flatMap @ munit.internal.NestingChecks$.checkNestingIO(internal.scala:38)
In practice it's not possible to navigate to failing test from stack trace.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the failure with the ServiceTest.scala example using scala-cli test, then inspect the stack trace around munit.internal.NestingChecks$.checkNestingIO. The work is done when a thrown error in Service.op can be navigated from the reported trace to the failing ServiceSpec.call directly test method.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- scala
- Domain
- testing-qa
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100