Unit test error - unexpected token: package

Hi,

We have a Fluent Form Function for calling GreenID.
The function has a unit test that extends the GreenIDUnitTestClass.

However, when I run the unit test it shows an error as above.

The service-def.json has a file as an include for the unit test, but it seems that the unit test does not like the 'include package' aspect.

This is the include statement:

// Package Include: blah/func/form/greenid/GreenIDUnitTestClass.groovy

How can we resolve this issue.

Thanks