Tests won't run / pass on a clean clone

[matneyx]

$ npm run test

> responsive-fixed-data-table@2.0.0 test C:\Projects\Personal\responsive-fixed-data-table
> ./node_modules/karma/bin/karma start test/karma.conf.js

'.' is not recognized as an internal or external command,
operable program or batch file.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! responsive-fixed-data-table@2.0.0 test: `./node_modules/karma/bin/karma start test/karma.conf.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the responsive-fixed-data-table@2.0.0 test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\davimatn\AppData\Roaming\npm-cache\_logs\2018-03-12T13_04_52_750Z-debug.log

Node version 8.10.0
NPM version 5.7.1