Wrong order of assertEquals args(Glance)

Args of assertEquals method in glance.tests are arranged
in wrong order. In result when test fails it shows incorrect
information about observed and actual data. It's found more
than 2000 times. Right order of arguments is "expected, actual".

Change-Id: Ifea4809f5a696b608a19e36a9ed9e5eec46c8a21
Co-Authored-By: Li Yingjun <liyingjun1988@gmail.com>
Closes-Bug: 1277104
Merge "Wrong order of assertEquals args(Glance)"