PSA: missing test coverage for BUFFER_TOO_SMALL

[gilles-peskine-arm]

Description

We mostly don't test what psa_xxx functions do if they write output to a buffer and that buffer is too small.

Example bug (wrong error code): #199

For all API functions that take an output buffer, there should be at least one test that expects PSA_ERROR_BUFFER_TOO_SMALL with parameters that are correct except for one output buffer which is too small.

Issue request type

[ ] Question
[x] Enhancement
[ ] Bug

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/IOTCRYPT-849

[adbridge]

Apologies, this was closed in error by the automated bot - re-opening.

[yanesca]

Like with other similar issues, any improvement to the current state is welcome.