Support In-Browser Debugging

[evenstensberg]

Feature Request

Webpack CLI had it's first meeting yesterday. We had a short discussion about using Jest as our test-runner and we had positive thoughts about using Jest, as it provides

-"a good stack with coverage and all features included"

However, one issue got brought up during the discussion. Jest doesn't support browser debug in similar ways as Karma. I dunno if this is plausible in Node purely, but it would be good to bring up the issue regardless.

Would this be something for Jest?

[cpojer]

Are you only talking about debugging? You can debug your tests using --debug-brk, see http://facebook.github.io/jest/docs/troubleshooting.html#tests-are-failing-and-you-don-t-know-why

You can also use node --inspect which will eventually become the standard but doesn't enable breakpoints to work inside of tests yet because of a bug in node's vm module that is actively being worked on.

There is an ongoing discussion here about running Jest directly in the browser: #848

[evenstensberg]

@cpojer Yepp, this was probably a dupe of #848