[PATCH 02/21] t/helper: fix leaks in "reach" test tool

[Patrick Steinhardt <ps@pks.im>]

The "reach" test tool doesn't bother to clean up any of its allocated
resources, causing various leaks. Plug them.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 t/helper/test-reach.c | 10 ++++++++++
 t/t6600-test-reach.sh |  1 +
 2 files changed, 11 insertions(+)

diff --git a/t/helper/test-reach.c b/t/helper/test-reach.c
index 995e382863a..84deee604ad 100644
--- a/t/helper/test-reach.c
+++ b/t/helper/test-reach.c
@@ -127,10 +127,12 @@ int cmd__reach(int ac, const char **av)
 			exit(128);
 		printf("%s(A,X):\n", av[1]);
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	} else if (!strcmp(av[1], "reduce_heads")) {
 		struct commit_list *list = reduce_heads(X);
 		printf("%s(X):\n", av[1]);
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	} else if (!strcmp(av[1], "can_all_from_reach")) {
 		printf("%s(X,Y):%d\n", av[1], can_all_from_reach(X, Y, 1));
 	} else if (!strcmp(av[1], "can_all_from_reach_with_flag")) {
@@ -153,6 +155,7 @@ int cmd__reach(int ac, const char **av)
 			filter.with_commit_tag_algo = 0;
 
 		printf("%s(_,A,X,_):%d\n", av[1], commit_contains(&filter, A, X, &cache));
+		clear_contains_cache(&cache);
 	} else if (!strcmp(av[1], "get_reachable_subset")) {
 		const int reachable_flag = 1;
 		int i, count = 0;
@@ -176,7 +179,14 @@ int cmd__reach(int ac, const char **av)
 			die(_("too many commits marked reachable"));
 
 		print_sorted_commit_ids(list);
+		free_commit_list(list);
 	}
 
+	object_array_clear(&X_obj);
+	strbuf_release(&buf);
+	free_commit_list(X);
+	free_commit_list(Y);
+	free(X_array);
+	free(Y_array);
 	return 0;
 }
diff --git a/t/t6600-test-reach.sh b/t/t6600-test-reach.sh
index 2591f8b8b39..307deefed2c 100755
--- a/t/t6600-test-reach.sh
+++ b/t/t6600-test-reach.sh
@@ -2,6 +2,7 @@
 
 test_description='basic commit reachability tests'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Construct a grid-like commit graph with points (x,y)
-- 
2.47.0.dirty