akka/akka-core

Scala 3 type inference issue with expectMsgType[T]

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#29,989 opened on Feb 1, 2021

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1 - triagedhelp wantedt:scala-3t:testing

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Description

Investigate if this is a general problem with the testkit on Scala 3, or rather something in the interaction between testkit and Scalatest

Originally posted by @johanandren in https://github.com/akka/akka/pull/29956#discussion_r565908122

Contributor guide

Research direction
Investigate the type inference failure for expectMsgType[T] in Scala 3. Check if it's a problem in the testkit or in the interaction with Scalatest. Reproduce with a minimal test case and compare with Scala 2.
Tech stack
scala
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
ScalaAkka Basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40