[GSoC][PATCH 0/5] t: port reftable/readwrite_test.c to the unit testing framework

The reftable library comes with self tests, which are exercised as part of the usual end-to-end tests and are designed to observe the end-user visible effects of Git commands. What it exercises, however, is a better match for the unit-testing framework, merged at 8bf6fbd0 (Merge branch 'js/doc-unit-tests', 2023-12-09), which is designed to observe how low level implementation details, at the level of sequences of individual function calls, behave.

Hence, port reftable/readwrite_test.c to the unit testing framework and improve upon the ported test. The first patch in the series moves the test to the unit testing framework, and the rest of the patches improve upon the ported test.

Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>

--- CI/PR: https://github.com/gitgitgadget/git/pull/1770

Chandra Pratap(5): t: move reftable/readwrite_test.c to the unit testing framework t-reftable-readwrite: use free_names() instead of a for loop t-reftable-readwrite: use 'for' in place of infinite 'while' loops t-reftable-readwrite: add test for known error t-reftable-readwrite: add tests for print functions

Makefile | 2 +- reftable/reftable-tests.h | 1 - t/helper/test-reftable.c | 1 - reftable/readwrite_test.c => t/unit-tests/t-reftable-readwrite.c | 517 +++++++++++++++++++++++----------------- 4 files changed, 294 insertions(+), 227 deletions(-)