Karma reported test duration is negative

[reustonium]

Originally reported to the Karma project.

Expected behaviour

Running karma tests takes ~12 seconds, expect test duration (runtime) to be ~12 seconds.

Actual behaviour

PhantomJS 2.1.1 (Windows 7 0.0.0): Executed 316 of 316 SUCCESS (1.959 secs / -41118 mins 50.274 secs)
TOTAL: 316 SUCCESS

Environment Details

Angular Yeoman Project.
Windows 7

• Karma version (output of karma --version): 1.3.0
• Relevant part of your karma.config.js file

Steps to reproduce the behaviour

1. grunt test
2. observe large negative test duration.

I think I found the issue, one of the tests is using jasmine.clock().mocktime(time) and that seems to be screwing up how Karma reports the duration for the test. Since the mocked time is far enough in the past I'm guessing that the signed integer is getting flipped and going way negative.