[PATCH 1/9] test-tool test-hash: fix a memory leak

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Fix a memory leak in "test-tool test-hash" which has been there since
b57cbbf8a86 (test-sha1: test hashing large buffer, 2006-06-24), as a
result we can mark more tests as passing with SANITIZE=leak using
"TEST_PASSES_SANITIZE_LEAK=true".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 t/helper/test-hash.c              | 1 +
 t/t0015-hash.sh                   | 3 ++-
 t/t5308-pack-detect-duplicates.sh | 2 ++
 t/t5309-pack-delta-cycles.sh      | 2 ++
 t/t5321-pack-large-objects.sh     | 2 ++
 5 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/t/helper/test-hash.c b/t/helper/test-hash.c
index 261c545b9d1..5860dab0ffa 100644
--- a/t/helper/test-hash.c
+++ b/t/helper/test-hash.c
@@ -54,5 +54,6 @@ int cmd_hash_impl(int ac, const char **av, int algo)
 		fwrite(hash, 1, algop->rawsz, stdout);
 	else
 		puts(hash_to_hex_algop(hash, algop));
+	free(buffer);
 	return 0;
 }
diff --git a/t/t0015-hash.sh b/t/t0015-hash.sh
index 086822fc45b..0a087a1983d 100755
--- a/t/t0015-hash.sh
+++ b/t/t0015-hash.sh
@@ -1,8 +1,9 @@
 #!/bin/sh
 
 test_description='test basic hash implementation'
-. ./test-lib.sh
 
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
 
 test_expect_success 'test basic SHA-1 hash values' '
 	test-tool sha1 </dev/null >actual &&
diff --git a/t/t5308-pack-detect-duplicates.sh b/t/t5308-pack-detect-duplicates.sh
index 693b2411c89..655cafa0541 100755
--- a/t/t5308-pack-detect-duplicates.sh
+++ b/t/t5308-pack-detect-duplicates.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='handling of duplicate objects in incoming packfiles'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-pack.sh
 
diff --git a/t/t5309-pack-delta-cycles.sh b/t/t5309-pack-delta-cycles.sh
index 55b787630fc..4e910c5b9d2 100755
--- a/t/t5309-pack-delta-cycles.sh
+++ b/t/t5309-pack-delta-cycles.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='test index-pack handling of delta cycles in packfiles'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-pack.sh
 
diff --git a/t/t5321-pack-large-objects.sh b/t/t5321-pack-large-objects.sh
index 8a56d98a0e8..70770fe274d 100755
--- a/t/t5321-pack-large-objects.sh
+++ b/t/t5321-pack-large-objects.sh
@@ -6,6 +6,8 @@
 test_description='git pack-object with "large" deltas
 
 '
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-pack.sh
 
-- 
2.37.0.874.g7d3439f13c4