Add more unit tests for isc_test API (!5760) · Merge requests · ISC Open Source Projects / BIND

While working on internal 64-bit time for BIND 9, the unit test suite for isc_time API has been extended.

Backport the unit tests from 64-bit time branch to the main branch. This should make the unit tests for isc_time API (mostly) complete.

Closes #2959

Add more unit tests for isc_test API