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/stack_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@xxxxxx> Mentored-by: Christian Couder <chriscool@xxxxxxxxxxxxx> Signed-off-by: Chandra Pratap <chandrapratap3519@xxxxxxxxx> --- Changes in v2: - Use 'size_t' as array index instead of 'int' in a test that is modified in patch 2. - Fix a coding style violation in the newly introduced test in patch 6. CI/PR: https://github.com/gitgitgadget/git/pull/1762 Chandra Pratap(6): t: move reftable/stack_test.c to the unit testing framework t: harmonize t-reftable-stack.c with coding guidelines t-reftable-stack: use Git's tempfile API instead of mkstemp() t-reftable-stack: use reftable_ref_record_equal() to compare ref records t-reftable-stack: add test for non-default compaction factor t-reftable-stack: add test for stack iterators Makefile | 2 +- reftable/reftable-tests.h | 1 - t/helper/test-reftable.c | 1 - reftable/stack_test.c => t/unit-tests/t-reftable-stack.c | 611 +++++++++++++++++++-------------- 4 files changed, 360 insertions(+), 255 deletions(-) Range-diff against v2: 1: e172ceefd7 ! 1: 838ccc63a7 t: harmonize t-reftable-stack.c with coding guidelines @@ t/unit-tests/t-reftable-stack.c: static void t_reftable_stack_compaction_concurr /* break abstraction boundary to simulate unclean shutdown. */ - int i = 0; - for (; i < st->readers_len; i++) { -+ for (int i = 0; i < st->readers_len; i++) ++ for (size_t i = 0; i < st->readers_len; i++) reftable_reader_free(st->readers[i]); - } st->readers_len = 0; 2: 73b94aaa6a = 2: 2a151c299c t-reftable-stack: use Git's tempfile API instead of mkstemp() 3: b6f0363656 = 3: fb5073da2c t-reftable-stack: use reftable_ref_record_equal() to compare ref records 4: 35c09e6054 = 4: 028fa6f70b t-reftable-stack: add test for non-default compaction factor 5: 3163c2af7d ! 5: fa0d358e65 t-reftable-stack: add test for stack iterators @@ t/unit-tests/t-reftable-stack.c: static void t_reftable_stack_add(void) + } + + for (i = 0; i < N; i++) { -+ err = reftable_stack_add(st, &write_test_ref, &refs[i]); ++ err = reftable_stack_add(st, write_test_ref, &refs[i]); + check(!err); + } + @@ t/unit-tests/t-reftable-stack.c: static void t_reftable_stack_add(void) + .log = &logs[i], + .update_index = reftable_stack_next_update_index(st), + }; -+ err = reftable_stack_add(st, &write_test_log, &arg); ++ err = reftable_stack_add(st, write_test_log, &arg); + check(!err); + } +