Add extra checks to member model tests - Failing.
Add extra checks to member model tests - Failing.

Check for expired and current methods to return the right values. This
is to make sure that expired method works correctly. It should fail.

rohanorton/wharfmembers,rsslldnphy/wharfmembers,rohanorton/wharfmembers,rsslldnphy/wharfmembers,rsslldnphy/wharfmembers,rohanorton/wharfmembers