Dart test not recognized with pub workspace

[fatshady]

Steps to reproduce

Use the Dart workspace feature (https://dart.dev/tools/pub/workspaces)

Try to run the tests from a "_test.dart" file in the IDE (right click the file, Run)

Expected result (correct result):

The IDE detects that this is a test file and launches the "Test Results" window and list the results

Actual result (faulty result):

It runs the file as a normal dart script and just display the raw output in the console

Additional info

I noticed it only happens when you open a single module of the workspace. If you open the project from the root (where the pubspec.yaml with the workspace is located) everything works just fine.

I also noticed that in the situations where it is not working, the test file icon does not show the usual red and green triangles that inform you that it is a test file.

Versions info

IntelliJ IDEA 2025.2.1 • Flutter plugin io.flutter 87.1 • Dart plugin 251.27623.5

Flutter 3.35.2 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 05db968908 (4 weeks ago) • 2025-08-25 10:21:35 -0700
Engine • hash abb725c9a5211af2a862b83f74b7eaf2652db083 (revision a8bfdfc394) (28 days ago) • 2025-08-22 23:51:12.000Z
Tools • Dart 3.9.0 • DevTools 2.48.0

[helin24]

I'm not able to reproduce this by trying out our devtools repo (https://github.com/flutter/devtools). Do you have a minimal project that reproduces the problem?

[fatshady]

Hi, sorry for the late reply but i've been trying to reproduce it in the past few days... i tryed both with the repo you linked and a fresh new project with a flutter app and a package (using the workspace feature) but i didn't manage to reproduce it.

When I opened the issue I was creating a new project without the workspace feature and i started to see the test icon working again. I havent seen them for a while, so I went directly to the conclusion that everything stopped working when I introduced the workspace.

I checked for every difference between my project and the other working ones, but I found nothing. Even tried to clean the .idea folder and re-import, but nothing changed.

I suppose we can close the issue as long as I can find a way to preproduce it .

[helin24]

Hmm so you still have a project where this consistently happens but new projects work? You could potentially try to copy your failing project and reduce it to something you can share with us.