Only add internal file resources to the collection when running tests
Only add internal file resources to the collection when running tests

During a "normal" Chef run, adding these resources to the context's resource
collection just creates "dummy" file resources (with `action :nothing`) to the
stack, so only add them when running tests.

zuazo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook