npm run-script tck says "passed: 0"

[Artem Kostiuk]

Installed the project as

git clone https://github.com/raml-org/raml-js-parser-2.git
cd raml-js-parser-2/
npm install
npm run devInstall
npm run buildall

Then ran npm run-script tck and the output says passed: 0.

Is this an expected behaviour?