tests: follow clar naming convention
diff --git a/tests/refs/branches/name.c b/tests/refs/branches/name.c
index 290916e..efa68e3 100644
--- a/tests/refs/branches/name.c
+++ b/tests/refs/branches/name.c
@@ -51,7 +51,7 @@ static int name_is_valid(const char *name)
return valid;
}
-void test_refs_branches_is_name_valid(void)
+void test_refs_branches_name__is_name_valid(void)
{
cl_assert_equal_i(true, name_is_valid("master"));
cl_assert_equal_i(true, name_is_valid("test/master"));