Istanbul: generate code cobertura report with mocha

Question

I can't generate a cobertura report with Istanbul running my mocha tests.

istanbul report cobertura cover _mocha test

The report in cobertura-coverage.xml is empty.

Note that if I run without report option (istanbul cover _mocha test) everything works fine and I can see in the console the coverage summary.

Any ideas what I'm doing wrong?

Answer 1

You're missing the --:

istanbul cover --report cobertura _mocha test

Answer 2

Correct one is...

istanbul cover --report cobertura _mocha tests

Cover followed by --report cobertura