When Tempest loads tests class inheritance plays a big role,
the test name (or path if you will) is affected by the inherited
classes.
ShareNetworksTest class inherits from ShareNetworkListMixin,
see [1], therefore the test in questions appears to be under
ShareNetworksTest and not ShareNetworkListMixin which is its
litteral position.
This issue wasn't uncovered by the consistency checks
because tools/checktest.py parses test files manually and
therefore the check passed as it found the litteral position
of the test not the based on the inheritance.
[1] 8ccbbebe6d/manila_tempest_tests/tests/api/test_share_networks.py
Change-Id: I685d94d045f4c20cfb9430d200b52e1c5cf4d268
5f7b383c90