Many assertEqual sentences don't follow assertEqual(expected, actual),
These misplaces have 2 impacts:
1, giving confusing messages when some tests failed.
2, mislead other developers, new test modules may follow these wrong pattern.
This patch fix all of them.
Change-Id: I33b5b59fda524d88386072d2058c4770a948db6f
Closes-Bug: #1604213