test/librbd: close image in DiffIterateDeterministic

... to avoid valgrind reporting a memory leak on ImageCtx.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/src/test/librbd/test_librbd.cc b/src/test/librbd/test_librbd.cc
index d9e43b5e7364352199322ec83a94eff52911e5b2..9d17c4d85cfd39c3dc982768cbffe41e24d2e53a 100644 (file)
--- a/src/test/librbd/test_librbd.cc
+++ b/src/test/librbd/test_librbd.cc
@@ -7580,6 +7580,9 @@ TYPED_TEST(DiffIterateTest, DiffIterateDeterministic)
   ASSERT_EQ(0u, extents.size());
 
   ASSERT_PASSED(this->validate_object_map, image);
+
+  ASSERT_EQ(0, rbd_close(image));
+  rados_ioctx_destroy(ioctx);
 }
 
 TYPED_TEST(DiffIterateTest, DiffIterateDeterministicPP)