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diff --git a/src/ceph/src/test/librbd/test_mock_fixture.h b/src/ceph/src/test/librbd/test_mock_fixture.h
new file mode 100644
index 0000000..c0bbb3d
--- /dev/null
+++ b/src/ceph/src/test/librbd/test_mock_fixture.h
@@ -0,0 +1,92 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_TEST_LIBRBD_TEST_MOCK_FIXTURE_H
+#define CEPH_TEST_LIBRBD_TEST_MOCK_FIXTURE_H
+
+#include "test/librbd/test_fixture.h"
+#include "test/librbd/mock/MockImageCtx.h"
+#include "test/librados_test_stub/LibradosTestStub.h"
+#include "common/WorkQueue.h"
+#include <boost/shared_ptr.hpp>
+#include <gmock/gmock.h>
+
+namespace librados {
+class TestCluster;
+class MockTestMemCluster;
+class MockTestMemIoCtxImpl;
+class MockTestMemRadosClient;
+}
+namespace librbd {
+class MockImageCtx;
+}
+
+ACTION_P(CopyInBufferlist, str) {
+  arg0->append(str);
+}
+
+ACTION_P2(CompleteContext, r, wq) {
+  ContextWQ *context_wq = reinterpret_cast<ContextWQ *>(wq);
+  if (context_wq != NULL) {
+    context_wq->queue(arg0, r);
+  } else {
+    arg0->complete(r);
+  }
+}
+
+ACTION_P(DispatchContext, wq) {
+  wq->queue(arg0, arg1);
+}
+
+ACTION_P3(FinishRequest, request, r, mock) {
+  librbd::MockImageCtx *mock_image_ctx =
+    reinterpret_cast<librbd::MockImageCtx *>(mock);
+  mock_image_ctx->image_ctx->op_work_queue->queue(request->on_finish, r);
+}
+
+ACTION_P(GetReference, ref_object) {
+  ref_object->get();
+}
+
+ACTION_P(Notify, ctx) {
+  ctx->complete(0);
+}
+
+MATCHER_P(ContentsEqual, bl, "") {
+  // TODO fix const-correctness of bufferlist
+  return const_cast<bufferlist &>(arg).contents_equal(
+    const_cast<bufferlist &>(bl));
+}
+
+class TestMockFixture : public TestFixture {
+public:
+  typedef boost::shared_ptr<librados::TestCluster> TestClusterRef;
+
+  static void SetUpTestCase();
+  static void TearDownTestCase();
+
+  void TearDown() override;
+
+  void expect_op_work_queue(librbd::MockImageCtx &mock_image_ctx);
+  void expect_unlock_exclusive_lock(librbd::ImageCtx &ictx);
+
+  void initialize_features(librbd::ImageCtx *ictx,
+                           librbd::MockImageCtx &mock_image_ctx,
+                           librbd::MockExclusiveLock &mock_exclusive_lock,
+                           librbd::MockJournal &mock_journal,
+                           librbd::MockObjectMap &mock_object_map);
+
+  void expect_is_journal_appending(librbd::MockJournal &mock_journal,
+                                   bool appending);
+  void expect_is_journal_replaying(librbd::MockJournal &mock_journal);
+  void expect_is_journal_ready(librbd::MockJournal &mock_journal);
+  void expect_allocate_op_tid(librbd::MockImageCtx &mock_image_ctx);
+  void expect_append_op_event(librbd::MockImageCtx &mock_image_ctx,
+                              bool can_affect_io, int r);
+  void expect_commit_op_event(librbd::MockImageCtx &mock_image_ctx, int r);
+
+private:
+  static TestClusterRef s_test_cluster;
+};
+
+#endif // CEPH_TEST_LIBRBD_TEST_MOCK_FIXTURE_H