karma 3.1.3 is not working with single entry file

[Havunen]

Expected behaviour

Karma 3.1.3 should re-process files when there is single entry point and it uses karma-webpack integration

Actual behaviour

Karma 3.1.3 does not re-process the file and no changes are picked up
Karma 3.1.1 works as expected

[segrey]

@Havunen Could you please provider steps to reproduce? A small example project would be great. Also, how do you run your karma tests?

[garyvh2]

@segrey here's a quick example https://github.com/garyvh2/karma-reload-problem
Just do the following:

git clone https://github.com/garyvh2/karma-reload-problem
npm install
npm test

Tests will be run on Chrome Headless, you will notice 2 tests being reported as successful.

Now, without stopping the server, go into deepCompare.spec.js and change any of the test to fail, I.E change in line 10, false into true, so you can break the inequality test.

You will notice that the tests are automatically run again, but both still successful, now, stop the tests server (ctrl + c) and run it again (npm test) without changing anything, now 1 tests is failing and the other one is successful, as you would expect.

If you try this with Karma 3.1.1 the behavior works as expected, so whenever you perform any change on the tests they are effectively run again, without you having to restart the test server.

Tell me if you need further information.

[segrey]

@garyvh2 Thanks for the repro!

[matthieu-foucault]

It's been reported in karma-webpack too, here's another repro if you're interested: codymikol/karma-webpack#100 (comment)

Single-entry setups are quite common with karma-webpack

[johnjbarton]

Please try 3.1.4

[Havunen]

3.1.4 works fine 👍