Change in flashrom[master]: tests/: Add file path and flags validation to open() calls

[Daniel Campello (Code Review)]

Attention is currently required from: Sam McNally, Edward O'Callaghan, Anastasia Klimchuk.
Daniel Campello has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/62320 )

Change subject: tests/: Add file path and flags validation to open() calls
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Patch Set 16:

(2 comments)

File tests/chip.c:

https://review.coreboot.org/c/flashrom/+/62320/comment/ecfd8858_8acc6d71 
PS14, Line 201: io_mock_register(&chip_io);
> related: https://review.coreboot. […]

Done. Rebased on top of that change too

https://review.coreboot.org/c/flashrom/+/62320/comment/3a7cf6d7_8f140da8 
PS14, Line 216: io_mock_register(NULL);
> `io_mock_register(NULL)` can be moved into `teardown` because it just repeats at the end of each tes […]

Done