How to setup Test Explorer ui for Karma (angular)

Hello,

I struggle to user a launcher test ui for my angular unit test using karma.

I wish i could launch the test from a button here.
It showed once on the existing test but not on the old one.
But by now I couldn’t see them anymore.

I already installer the plugin Test Explorer Ui + Karma test explorer.
Even jasmine.
I have karma.conf.js on root.
I have no .vscode folder.

If i launch the project on intelliji it works fine, I could launch the test.
But not on cursor.
Any idea please ?

Hey, does the same setup work on VSCode, showing the button to trigger the tests?