fix broken test

Ooops, bad loop, and actually, bad logic.

The logic that was there was close to right,
but it ignored rounding.  Instead just write out
the expected values.

Change-Id: I8fec64ffeaf632198ee5bab4be598a3843c3fc9b
Reviewed-on: https://skia-review.googlesource.com/154120
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
1 file changed