tree 5da09847dadb908163fcbfbdde5456d21f0c1f06
parent 76918d016414bf1d71a86d28239566fbcf8aacf0
author Adam Langley <agl@google.com> 1571244998 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1571348318 +0000

Add test for urandom.c

This change adds a test to try and prevent errors like b8f760191e. Since
it's challenging to test this code, it uses ptrace to capture a trace of
the PRNG behaviour and checks that the observed behaviour matches a much
smaller model of the code. The model is hopefully easier to read and
believe correct.

Change-Id: I00b811dc5692e2fbe3dcc16c622d4eb706f16ce0
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/38265
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>