test the high level SSG build command

Signed-off-by: Brian S. Stephan <bss@incorporeal.org>

incorporealcms/__init__.py

@@ -22,7 +22,7 @@ jinja_env = Environment(
 try:
     # packaged/pip install -e . value
     from ._version import version as __version__
-except ImportError:
+except ImportError:  # pragma: no cover
     # local clone value
     from setuptools_scm import get_version
     __version__ = get_version(root='..', relative_to=__file__)