Add unit-tests for the all_sites endpoint
Add unit-tests for the all_sites endpoint

pombredanne/mirrormanager2,pombredanne/mirrormanager2,Devyani-Divs/mirrormanager2,pombredanne/mirrormanager2,pombredanne/mirrormanager2,Devyani-Divs/mirrormanager2,Devyani-Divs/mirrormanager2,Devyani-Divs/mirrormanager2