Async await support

[furstenheim]

Karma coverage is not able to parse files that contain async/await I get a parsing error:

ERROR [preprocessor.coverage]: Line 15: Unexpected token function

Thanks

[furstenheim]

As a workaround one can use https://github.com/istanbuljs/babel-plugin-istanbul for instrumenting the code and karma-coverage to make the coverage

[lucis]

up

[lucis]

@furstenheim Could you explain how you configured this plugin?

[furstenheim]

@lucianolucianoluciano you can take a look at the karma conf of the project. It is actually quite simple. As a babel plugin you add istanbul and that will add the information for the coverageReporter. Don't forget to run

npm install --save-dev babel-plugin-instanbul

[1000i100]

Are you planning to add async/await native support in karma-coverage ?

I use them in my project without babel conversion, so it could be helpfull !

until then, il will drop karma-coverage and cross test with jest instead for coverage.

[johnjbarton]

To update the language support, istanbul needs to be updated to pull esprima 4.x.

[kierans]

It maybe that Istanbul will not update the esprima version because istanbul has been deprecated in favour of istanbuljs (which does support async/await).

[anthony-redFox]

should be done in version 2.X, fill free to reopen if still have a error