[PATCH 6/6] use setup_git_directory() in test-* programs

[Jeff King <peff@peff.net>]

Some of the test-* programs rely on examining refs, but did
not bother to make sure we are actually in a git repository.
Let's have them call setup_git_directory() to do so.

Signed-off-by: Jeff King <peff@peff.net>
---
As discussed elsewhere, test-match-trees isn't actually used in the test
suite (except for the weird use which was removed in patch 1 here). So
we could also just get rid of it, but maybe somebody uses it for
debugging or something.

 test-match-trees.c      | 2 ++
 test-revision-walking.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/test-match-trees.c b/test-match-trees.c
index 109f03e..4dad709 100644
--- a/test-match-trees.c
+++ b/test-match-trees.c
@@ -6,6 +6,8 @@ int main(int ac, char **av)
 	unsigned char hash1[20], hash2[20], shifted[20];
 	struct tree *one, *two;
 
+	setup_git_directory();
+
 	if (get_sha1(av[1], hash1))
 		die("cannot parse %s as an object name", av[1]);
 	if (get_sha1(av[2], hash2))
diff --git a/test-revision-walking.c b/test-revision-walking.c
index 285f06b..3d03133 100644
--- a/test-revision-walking.c
+++ b/test-revision-walking.c
@@ -50,6 +50,8 @@ int main(int argc, char **argv)
 	if (argc < 2)
 		return 1;
 
+	setup_git_directory();
+
 	if (!strcmp(argv[1], "run-twice")) {
 		printf("1st\n");
 		if (!run_revision_walk())
-- 
2.8.0.rc1.318.g2193183