Cannot convert undefined or null to object at Function.keys (<anonymous>) (Testing)

I'm using the matchFeature example, works fine. But i needed to do some changes i order to work for my project but when i want to do test the following error occurs:

test/matchFeature.test.js

● Test suite failed to run

TypeError: Cannot convert undefined or null to object
at Function.keys ()

at Object. (node_modules/opencv4nodejs/lib/cv.js:63:8)
at Object. (node_modules/opencv4nodejs/lib/opencv4nodejs.js:11:79)

I think is a problem when loading the module, but i cant fix it.
I'm using Jest for testing.