[S] Change in flashrom[master]: tests: Use MOCK_FD instead of NON_ZERO for file operations

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Thomas Heijligen, Anastasia Klimchuk, Peter Marheine.

Hello Felix Singer, build bot (Jenkins), Thomas Heijligen, Angel Pons, Peter Marheine,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/67310

to look at the new patch set (#2).

Change subject: tests: Use MOCK_FD instead of NON_ZERO for file operations
......................................................................

tests: Use MOCK_FD instead of NON_ZERO for file operations

NON_ZERO can be a negative number, so MOCK_FD is safer option to
use as a mock file descriptor. Also it is more readable.

BUG=b:237606255
TEST=ninja test
on two environments:
1) FreeBSD 13.1-RELEASE-p2 GENERIC amd64
2) Debian 5.17.11 x86_64 GNU/Linux

Change-Id: I097dd59f69c3fb532ac136796fcf5cae8839af7b
Signed-off-by: Anastasia Klimchuk 
TICKET: https://ticket.coreboot.org/issues/411
---
M tests/tests.c
1 file changed, 22 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/10/67310/2