karma-browserstack-launcher does not work with Travis-CI

[gaoruhao]

If I configured the Travis-CI browserstack addon according to this document, karma-browserstack-launcher will always receive an "access denied" when running in travis-ci.

The reason is that travis-ci will always add a suffix "-travis" to your browserstack username and also set this new username to the process.env.BROWSERSTACK_USERNAME.

https://github.com/travis-ci/travis-build/blob/10491086722c72e8bd73672c76d9e1947c70b3c1/lib/travis/build/addons/browserstack.rb#L182

Then this modified browserstack username is used by karma-browserstack-launcher, according to the code below.

karma-browserstack-launcher/index.js

Line 42 in 22ccf91

username: env.BROWSERSTACK_USERNAME || env.BROWSER_STACK_USERNAME || config.username,

The workaround is to set process.env.BROWSERSTACK_USERNAME to your original username at the top of karma.conf.js but I hope this issue can be fixed in karma-browserstack-launcher or at least mentioned in the README/FAQ.

[lddubeau]

You don't need to use the add on at all. For the longest time I was using the add on and had to compensate for the arbitrary addition of -travis to the end of the user name. Then I realized I could just as well run my tests without the add on.