[PATCH v2 2/7] tests: fix a memory leak in test-parse-options.c

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Fix a memory leak in t/helper/test-parse-options.c, we were not
freeing the allocated "struct string_list" or its items. Let's move
the declaration of the "list" variable into the cmd__parse_options()
and release it at the end.

In c8ba1639165 (parse-options: add OPT_STRING_LIST helper, 2011-06-09)
the "list" variable was added, and later on in
c8ba1639165 (parse-options: add OPT_STRING_LIST helper, 2011-06-09)
the "expect" was added.

The "list" variable was last touched in 2721ce21e43 (use string_list
initializer consistently, 2016-06-13), but it was still left at the
static scope, it's better to move it to the function for consistency.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 t/helper/test-parse-options.c | 7 ++++++-
 t/t0040-parse-options.sh      | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/t/helper/test-parse-options.c b/t/helper/test-parse-options.c
index a282b6ff13e..48d3cf6692d 100644
--- a/t/helper/test-parse-options.c
+++ b/t/helper/test-parse-options.c
@@ -14,7 +14,6 @@ static int dry_run = 0, quiet = 0;
 static char *string = NULL;
 static char *file = NULL;
 static int ambiguous;
-static struct string_list list = STRING_LIST_INIT_NODUP;
 
 static struct {
 	int called;
@@ -107,6 +106,8 @@ int cmd__parse_options(int argc, const char **argv)
 		NULL
 	};
 	struct string_list expect = STRING_LIST_INIT_NODUP;
+	struct string_list list = STRING_LIST_INIT_NODUP;
+
 	struct option options[] = {
 		OPT_BOOL(0, "yes", &boolean, "get a boolean"),
 		OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"),
@@ -185,5 +186,9 @@ int cmd__parse_options(int argc, const char **argv)
 	for (i = 0; i < argc; i++)
 		show(&expect, &ret, "arg %02d: %s", i, argv[i]);
 
+	expect.strdup_strings = 1;
+	string_list_clear(&expect, 0);
+	string_list_clear(&list, 0);
+
 	return ret;
 }
diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
index da310ed29b1..ed422a1a616 100755
--- a/t/t0040-parse-options.sh
+++ b/t/t0040-parse-options.sh
@@ -5,6 +5,7 @@
 
 test_description='our own option parser'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 cat >expect <<\EOF
-- 
2.33.0.1446.g6af949f83bd




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