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Merge pull request #2359 from TheDarkniteFalls/codex/gh023-branch-head-regression

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test(pipeline): cover changed-file and empty-commit Branch HEAD refresh
This commit is contained in:
Martin Vogel
2026-09-27 16:01:59 +02:00
committed by GitHub
parent 11b662f9f7 efb231285d
commit 4f7fa84e32
1 changed files with 42 additions and 5 deletions
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tests/test_pipeline.c
+42 -5
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@@ -8981,9 +8981,10 @@ static int branch_head_match_count(cbm_store_t *store, const char *project, cons
return matches;
}
/* Git context is graph input even when every repository file is unchanged.
* Construct the second pipeline before moving HEAD so the test also proves
* that run start refreshes the snapshot captured by cbm_pipeline_new(). */
/* Regression for #1213: index A, re-index B after a tracked source change,
* then re-index C after an empty commit. Each successful run publishes its
* run-start HEAD. Construct the final pipeline before moving HEAD to also
* cover refreshing the snapshot captured by cbm_pipeline_new(). */
TEST(pipeline_git_context_change_forces_full_and_refreshes_branch) {
if (!git_available()) {
FAIL("git unavailable");
@@ -9026,6 +9027,42 @@ TEST(pipeline_git_context_change_forces_full_and_refreshes_branch) {
snprintf(project, sizeof(project), "%s", cbm_pipeline_project_name(baseline));
cbm_pipeline_free(baseline);
cbm_store_t *initial_store = cbm_store_open_path(db_path);
ASSERT_NOT_NULL(initial_store);
int initial_matches = branch_head_match_count(initial_store, project, initial_head);
cbm_store_close(initial_store);
ASSERT_EQ(initial_matches, 1);
/* B: a committed source change must advance the existing project's HEAD. */
ASSERT_EQ(th_write_file(TH_PATH(repo, "stable.py"), "def StableGitContext():\n return 2\n"),
0);
snprintf(cmd, sizeof(cmd),
"git -C \"%s\" -c user.name=\"CBM Test\" "
"-c user.email=\"cbm@example.invalid\" commit -am \"source change\" >%s 2>&1",
repo, null_dev);
ASSERT_EQ(run_cmd(cmd), 0);
cbm_git_context_t source_ctx = {0};
ASSERT_EQ(cbm_git_context_resolve(repo, &source_ctx), 0);
ASSERT_NOT_NULL(source_ctx.head_sha);
char source_head[128];
snprintf(source_head, sizeof(source_head), "%s", source_ctx.head_sha);
cbm_git_context_free(&source_ctx);
ASSERT_TRUE(strcmp(initial_head, source_head) != 0);
cbm_pipeline_t *after_source_change = cbm_pipeline_new(repo, db_path, CBM_MODE_FAST);
ASSERT_NOT_NULL(after_source_change);
int source_rc = cbm_pipeline_run(after_source_change);
cbm_pipeline_free(after_source_change);
ASSERT_EQ(source_rc, 0);
cbm_store_t *source_store = cbm_store_open_path(db_path);
ASSERT_NOT_NULL(source_store);
int source_matches = branch_head_match_count(source_store, project, source_head);
int initial_stale_matches = branch_head_match_count(source_store, project, initial_head);
cbm_store_close(source_store);
ASSERT_EQ(source_matches, 1);
ASSERT_EQ(initial_stale_matches, 0);
/* C: no file hashes change, but the empty commit must still advance HEAD. */
cbm_pipeline_t *after_head_move = cbm_pipeline_new(repo, db_path, CBM_MODE_FAST);
ASSERT_NOT_NULL(after_head_move);
snprintf(cmd, sizeof(cmd),
@@ -9040,7 +9077,7 @@ TEST(pipeline_git_context_change_forces_full_and_refreshes_branch) {
char changed_head[128];
snprintf(changed_head, sizeof(changed_head), "%s", changed_ctx.head_sha);
cbm_git_context_free(&changed_ctx);
ASSERT_TRUE(strcmp(initial_head, changed_head) != 0);
ASSERT_TRUE(strcmp(source_head, changed_head) != 0);
cbm_pipeline_incremental_test_reset_faults();
int changed_rc = cbm_pipeline_run(after_head_move);
@@ -9049,7 +9086,7 @@ TEST(pipeline_git_context_change_forces_full_and_refreshes_branch) {
cbm_store_t *store = cbm_store_open_path(db_path);
int changed_branch_matches = store ? branch_head_match_count(store, project, changed_head) : -1;
int stale_branch_matches = store ? branch_head_match_count(store, project, initial_head) : -1;
int stale_branch_matches = store ? branch_head_match_count(store, project, source_head) : -1;
cbm_file_hash_t git_input = {0};
int git_input_rc =
store ? cbm_store_get_file_hash(