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diff --git a/src/ceph/src/test/librbd/object_map/test_mock_UnlockRequest.cc b/src/ceph/src/test/librbd/object_map/test_mock_UnlockRequest.cc
new file mode 100644
index 0000000..95879c8
--- /dev/null
+++ b/src/ceph/src/test/librbd/object_map/test_mock_UnlockRequest.cc
@@ -0,0 +1,69 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/librbd/test_mock_fixture.h"
+#include "test/librbd/test_support.h"
+#include "test/librbd/mock/MockImageCtx.h"
+#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "cls/lock/cls_lock_ops.h"
+#include "librbd/ObjectMap.h"
+#include "librbd/object_map/UnlockRequest.h"
+
+// template definitions
+#include "librbd/object_map/UnlockRequest.cc"
+
+namespace librbd {
+namespace object_map {
+
+using ::testing::_;
+using ::testing::InSequence;
+using ::testing::Return;
+using ::testing::StrEq;
+
+class TestMockObjectMapUnlockRequest : public TestMockFixture {
+public:
+  typedef UnlockRequest<MockImageCtx> MockUnlockRequest;
+
+  void expect_unlock(MockImageCtx &mock_image_ctx, int r) {
+    std::string oid(ObjectMap<>::object_map_name(mock_image_ctx.id,
+                                                 CEPH_NOSNAP));
+    EXPECT_CALL(get_mock_io_ctx(mock_image_ctx.md_ctx),
+                exec(oid, _, StrEq("lock"), StrEq("unlock"), _, _, _))
+                  .WillOnce(Return(r));
+  }
+};
+
+TEST_F(TestMockObjectMapUnlockRequest, Success) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  C_SaferCond ctx;
+  MockUnlockRequest *req = new MockUnlockRequest(mock_image_ctx, &ctx);
+
+  InSequence seq;
+  expect_unlock(mock_image_ctx, 0);
+  req->send();
+
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockObjectMapUnlockRequest, UnlockError) {
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  C_SaferCond ctx;
+  MockUnlockRequest *req = new MockUnlockRequest(mock_image_ctx, &ctx);
+
+  InSequence seq;
+  expect_unlock(mock_image_ctx, -ENOENT);
+  req->send();
+
+  ASSERT_EQ(0, ctx.wait());
+}
+
+} // namespace object_map
+} // namespace librbd