Refactor assertion into assertInRange() method

It's hard to read in current design, refactor the
assertion into assertInRange() for readability.

Bug: 153614624
Test: atest android.net.cts.TrafficStatsTest
Change-Id: I6d939dd62cad3d6ba23a3c5ca7b1e6a8b4131a90
Merged-In: I6d939dd62cad3d6ba23a3c5ca7b1e6a8b4131a90
(cherry picked from commit af3469bdc7031d80f3d3838518fd7518b3e8eb9c)
1 file changed
tree: 6f900f4cd93d5ac1cca1eb1efb06d5cb7df99c48
  1. tests/