Extend unit test for dump function

Add more values in different maps to cover more code lines in dump
function.

The original test code is also modified to have one entry per map.
Because the entries are hashed in the map. The order of each entry is
not a fixed order.

Bug: N/A
Test: atest
Change-Id: Ie21016768309e8501a127cb3da02211d21b06c2c
1 file changed