git_revwalk_push_range: do not crash if range is missing

If someone passes just one ref (i.e. "master") and misses passing the
range we should be nice and return an error code instead of crashing.

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/revwalk/basic.c b/tests/revwalk/basic.c
index 8e7302552..24dd6f875 100644
--- a/tests/revwalk/basic.c
+++ b/tests/revwalk/basic.c
@@ -400,6 +400,15 @@ void test_revwalk_basic__push_range(void)
 	cl_git_pass(test_walk_only(_walk, commit_sorting_segment, 2));
 }
 
+void test_revwalk_basic__push_range_no_range(void)
+{
+	revwalk_basic_setup_walk(NULL);
+
+	git_revwalk_reset(_walk);
+	git_revwalk_sorting(_walk, 0);
+	cl_git_fail_with(GIT_EINVALIDSPEC, git_revwalk_push_range(_walk, "HEAD"));
+}
+
 void test_revwalk_basic__push_mixed(void)
 {
 	git_oid oid;