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authorPatrick Steinhardt <ps@pks.im>2025-02-18 10:20:42 +0100
committerJunio C Hamano <gitster@pobox.com>2025-02-18 10:55:36 -0800
commit6f6127decde6785b9ba5f22a07a7754d1fda1a59 (patch)
treed65310107cc06522840061d534e93e7e8d38e666 /t/unit-tests
parent9d9fac0f34ec47cc6eafeb3e10378ab8f3310346 (diff)
downloadgit-6f6127decde6785b9ba5f22a07a7754d1fda1a59.tar.gz
reftable/record: don't `BUG()` in `reftable_record_cmp()`
The reftable library aborts with a bug in case `reftable_record_cmp()` is invoked with two records of differing types. This would cause the program to die without the caller being able to handle the error, which is not something we want in the context of library code. And it ties us to the Git codebase. Refactor the code such that `reftable_record_cmp()` returns an error code separate from the actual comparison result. This requires us to also adapt some callers up the callchain in a similar fashion. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/unit-tests')
-rw-r--r--t/unit-tests/t-reftable-pq.c16
-rw-r--r--t/unit-tests/t-reftable-record.c40
2 files changed, 40 insertions, 16 deletions
diff --git a/t/unit-tests/t-reftable-pq.c b/t/unit-tests/t-reftable-pq.c
index d8a4c283a1..c128fe8616 100644
--- a/t/unit-tests/t-reftable-pq.c
+++ b/t/unit-tests/t-reftable-pq.c
@@ -21,7 +21,9 @@ static void merged_iter_pqueue_check(const struct merged_iter_pqueue *pq)
static int pq_entry_equal(struct pq_entry *a, struct pq_entry *b)
{
- return !reftable_record_cmp(a->rec, b->rec) && (a->index == b->index);
+ int cmp;
+ check(!reftable_record_cmp(a->rec, b->rec, &cmp));
+ return !cmp && (a->index == b->index);
}
static void t_pq_record(void)
@@ -49,7 +51,9 @@ static void t_pq_record(void)
while (!merged_iter_pqueue_is_empty(pq)) {
struct pq_entry top = merged_iter_pqueue_top(pq);
- struct pq_entry e = merged_iter_pqueue_remove(&pq);
+ struct pq_entry e;
+
+ check(!merged_iter_pqueue_remove(&pq, &e));
merged_iter_pqueue_check(&pq);
check(pq_entry_equal(&top, &e));
@@ -90,7 +94,9 @@ static void t_pq_index(void)
for (i = N - 1; i > 0; i--) {
struct pq_entry top = merged_iter_pqueue_top(pq);
- struct pq_entry e = merged_iter_pqueue_remove(&pq);
+ struct pq_entry e;
+
+ check(!merged_iter_pqueue_remove(&pq, &e));
merged_iter_pqueue_check(&pq);
check(pq_entry_equal(&top, &e));
@@ -129,7 +135,9 @@ static void t_merged_iter_pqueue_top(void)
for (i = N - 1; i > 0; i--) {
struct pq_entry top = merged_iter_pqueue_top(pq);
- struct pq_entry e = merged_iter_pqueue_remove(&pq);
+ struct pq_entry e;
+
+ check(!merged_iter_pqueue_remove(&pq, &e));
merged_iter_pqueue_check(&pq);
check(pq_entry_equal(&top, &e));
diff --git a/t/unit-tests/t-reftable-record.c b/t/unit-tests/t-reftable-record.c
index 6540bd20e3..5954966373 100644
--- a/t/unit-tests/t-reftable-record.c
+++ b/t/unit-tests/t-reftable-record.c
@@ -100,16 +100,20 @@ static void t_reftable_ref_record_comparison(void)
.u.ref.value.symref = (char *) "refs/heads/master",
},
};
+ int cmp;
check(!reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
check(!reftable_record_equal(&in[1], &in[2], REFTABLE_HASH_SIZE_SHA1));
- check_int(reftable_record_cmp(&in[1], &in[2]), >, 0);
+ check(!reftable_record_cmp(&in[1], &in[2], &cmp));
+ check_int(cmp, >, 0);
in[1].u.ref.value_type = in[0].u.ref.value_type;
check(reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
}
static void t_reftable_ref_record_compare_name(void)
@@ -209,17 +213,20 @@ static void t_reftable_log_record_comparison(void)
.u.log.update_index = 22,
},
};
+ int cmp;
check(!reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
check(!reftable_record_equal(&in[1], &in[2], REFTABLE_HASH_SIZE_SHA1));
- check_int(reftable_record_cmp(&in[1], &in[2]), >, 0);
+ check(!reftable_record_cmp(&in[1], &in[2], &cmp));
+ check_int(cmp, >, 0);
/* comparison should be reversed for equal keys, because
* comparison is now performed on the basis of update indices */
- check_int(reftable_record_cmp(&in[0], &in[1]), <, 0);
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check_int(cmp, <, 0);
in[1].u.log.update_index = in[0].u.log.update_index;
check(reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
}
static void t_reftable_log_record_compare_key(void)
@@ -396,16 +403,20 @@ static void t_reftable_obj_record_comparison(void)
.u.obj.hash_prefix_len = 5,
},
};
+ int cmp;
check(!reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
check(!reftable_record_equal(&in[1], &in[2], REFTABLE_HASH_SIZE_SHA1));
- check_int(reftable_record_cmp(&in[1], &in[2]), >, 0);
+ check(!reftable_record_cmp(&in[1], &in[2], &cmp));
+ check_int(cmp, >, 0);
in[1].u.obj.offset_len = in[0].u.obj.offset_len;
check(reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
}
static void t_reftable_obj_record_roundtrip(void)
@@ -486,19 +497,24 @@ static void t_reftable_index_record_comparison(void)
.u.idx.last_key = REFTABLE_BUF_INIT,
},
};
+ int cmp;
+
check(!reftable_buf_addstr(&in[0].u.idx.last_key, "refs/heads/master"));
check(!reftable_buf_addstr(&in[1].u.idx.last_key, "refs/heads/master"));
check(!reftable_buf_addstr(&in[2].u.idx.last_key, "refs/heads/branch"));
check(!reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
check(!reftable_record_equal(&in[1], &in[2], REFTABLE_HASH_SIZE_SHA1));
- check_int(reftable_record_cmp(&in[1], &in[2]), >, 0);
+ check(!reftable_record_cmp(&in[1], &in[2], &cmp));
+ check_int(cmp, >, 0);
in[1].u.idx.offset = in[0].u.idx.offset;
check(reftable_record_equal(&in[0], &in[1], REFTABLE_HASH_SIZE_SHA1));
- check(!reftable_record_cmp(&in[0], &in[1]));
+ check(!reftable_record_cmp(&in[0], &in[1], &cmp));
+ check(!cmp);
for (size_t i = 0; i < ARRAY_SIZE(in); i++)
reftable_record_release(&in[i]);
generated by cgit 1.2.3-korg (git 2.43.0) at 2025-12-04 15:59:01 +0000