[PATCH 3/6] t-reftable-stack: use Git's tempfile API instead of mkstemp()

[Chandra Pratap <chandrapratap3519@gmail.com>]

Git's tempfile API defined by $GIT_DIR/tempfile.{c, h} provides
a unified interface for tempfile operations. Since reftable/stack.c
uses this API for all its tempfile needs instead of raw functions
like mkstemp(), make the ported stack test strictly use Git's
tempfile API as well.

Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
---
 t/unit-tests/t-reftable-stack.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/t/unit-tests/t-reftable-stack.c b/t/unit-tests/t-reftable-stack.c
index e033feb8ee..14909b127e 100644
--- a/t/unit-tests/t-reftable-stack.c
+++ b/t/unit-tests/t-reftable-stack.c
@@ -76,7 +76,8 @@ static char *get_tmp_dir(int linenumber)
 static void t_read_file(void)
 {
 	char *fn = get_tmp_template(__LINE__);
-	int fd = mkstemp(fn);
+	struct tempfile *tmp = mks_tempfile(fn);
+	int fd = get_tempfile_fd(tmp);
 	char out[1024] = "line1\n\nline2\nline3";
 	int n, err;
 	char **names = NULL;
@@ -95,6 +96,7 @@ static void t_read_file(void)
 		check_str(want[i], names[i]);
 	free_names(names);
 	(void) remove(fn);
+	delete_tempfile(&tmp);
 }
 
 static int write_test_ref(struct reftable_writer *wr, void *arg)
-- 
2.45.GIT