tree 65c5726ee379929b6bebabc256d40777ce6fe76e
parent 2ac15eee7339ca6cf944a21eb5dcab79cedddad7
author Brian Norris <briannorris@chromium.org> 1576110595 -0800
committer Commit Bot <commit-bot@chromium.org> 1578369828 +0000

wificell: keep tmp files under /tmp/autotest-* and clean them out

We don't want garbage from previous tests to affect future ones. Keep
them in a well-known subdirectory of /tmp and clear them out each time
we spin up a new test on a router or pcap device.

netserver is an odd case:
 * it hardcodes /tmp in the source code;
 * it prodcues empty logfiles that we were never capturing in the first
   place; and
 * it has several users, where some run on LinuxSystem (i.e., the
   router), some run on the client (WiFiClient), and NetperfRunner isn't
   very well designed to care about which one is which.
Given all that, I found it easier to just run it with an ephemeral /tmp,
via minijail.

BUG=chromium:1033275
TEST=run a few tests from suite:wifi_matfunc, suite:wifi_perf

Change-Id: Ic2f0618d330ba8ebe48692b3cc7af998f1eade64
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1965856
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Shuo-Peng Liao <deanliao@chromium.org>
Commit-Queue: Brian Norris <briannorris@chromium.org>