Make building test files required only if the test suite is run.
Make building test files required only if the test suite is run.

lddubeau/wed,mangalam-research/wed,mangalam-research/wed,slattery/wed,mangalam-research/wed,mangalam-research/wed,lddubeau/wed,lddubeau/wed,slattery/wed,slattery/wed,lddubeau/wed