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diff --git a/src/ceph/src/test/rbd_mirror/image_sync/test_mock_SyncPointPruneRequest.cc b/src/ceph/src/test/rbd_mirror/image_sync/test_mock_SyncPointPruneRequest.cc
new file mode 100644
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--- /dev/null
+++ b/src/ceph/src/test/rbd_mirror/image_sync/test_mock_SyncPointPruneRequest.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "test/rbd_mirror/test_mock_fixture.h"
+#include "include/rbd/librbd.hpp"
+#include "librbd/journal/Types.h"
+#include "librbd/journal/TypeTraits.h"
+#include "test/journal/mock/MockJournaler.h"
+#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "test/librbd/mock/MockImageCtx.h"
+#include "tools/rbd_mirror/image_sync/SyncPointPruneRequest.h"
+
+namespace librbd {
+
+namespace {
+
+struct MockTestImageCtx : public librbd::MockImageCtx {
+  MockTestImageCtx(librbd::ImageCtx &image_ctx)
+    : librbd::MockImageCtx(image_ctx) {
+  }
+};
+
+} // anonymous namespace
+
+namespace journal {
+
+template <>
+struct TypeTraits<librbd::MockTestImageCtx> {
+  typedef ::journal::MockJournaler Journaler;
+};
+
+} // namespace journal
+} // namespace librbd
+
+// template definitions
+#include "tools/rbd_mirror/image_sync/SyncPointPruneRequest.cc"
+template class rbd::mirror::image_sync::SyncPointPruneRequest<librbd::MockTestImageCtx>;
+
+namespace rbd {
+namespace mirror {
+namespace image_sync {
+
+using ::testing::_;
+using ::testing::InSequence;
+using ::testing::Return;
+using ::testing::StrEq;
+using ::testing::WithArg;
+
+class TestMockImageSyncSyncPointPruneRequest : public TestMockFixture {
+public:
+  typedef SyncPointPruneRequest<librbd::MockTestImageCtx> MockSyncPointPruneRequest;
+
+  void SetUp() override {
+    TestMockFixture::SetUp();
+
+    librbd::RBD rbd;
+    ASSERT_EQ(0, create_image(rbd, m_remote_io_ctx, m_image_name, m_image_size));
+    ASSERT_EQ(0, open_image(m_remote_io_ctx, m_image_name, &m_remote_image_ctx));
+  }
+
+  void expect_update_client(journal::MockJournaler &mock_journaler, int r) {
+    EXPECT_CALL(mock_journaler, update_client(_, _))
+      .WillOnce(WithArg<1>(CompleteContext(r)));
+  }
+
+  void expect_get_snap_id(librbd::MockTestImageCtx &mock_remote_image_ctx,
+                          const std::string &snap_name, uint64_t snap_id) {
+    EXPECT_CALL(mock_remote_image_ctx, get_snap_id(_, StrEq(snap_name)))
+      .WillOnce(Return(snap_id));
+  }
+
+  void expect_image_refresh(librbd::MockTestImageCtx &mock_remote_image_ctx, int r) {
+    EXPECT_CALL(*mock_remote_image_ctx.state, refresh(_))
+      .WillOnce(CompleteContext(r));
+  }
+
+  void expect_snap_remove(librbd::MockTestImageCtx &mock_remote_image_ctx,
+                          const std::string &snap_name, int r) {
+    EXPECT_CALL(*mock_remote_image_ctx.operations, snap_remove(_, StrEq(snap_name), _))
+      .WillOnce(WithArg<2>(CompleteContext(r)));
+  }
+
+  MockSyncPointPruneRequest *create_request(librbd::MockTestImageCtx &mock_remote_image_ctx,
+                                            journal::MockJournaler &mock_journaler,
+                                            bool sync_complete, Context *ctx) {
+    return new MockSyncPointPruneRequest(&mock_remote_image_ctx, sync_complete,
+                                         &mock_journaler, &m_client_meta, ctx);
+  }
+
+  librbd::ImageCtx *m_remote_image_ctx;
+  librbd::journal::MirrorPeerClientMeta m_client_meta;
+};
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, SyncInProgressSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_get_snap_id(mock_remote_image_ctx, "snap1", 123);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, false, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, RestartedSyncInProgressSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1", boost::none);
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_get_snap_id(mock_remote_image_ctx, "snap1", 123);
+  expect_snap_remove(mock_remote_image_ctx, "snap2", 0);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, false, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+
+  client_meta.sync_points.pop_back();
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, SyncInProgressMissingSnapSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1",
+					boost::none);
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_get_snap_id(mock_remote_image_ctx, "snap1", CEPH_NOSNAP);
+  expect_snap_remove(mock_remote_image_ctx, "snap2", 0);
+  expect_snap_remove(mock_remote_image_ctx, "snap1", 0);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, false, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+
+  client_meta.sync_points.clear();
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, SyncInProgressUnexpectedFromSnapSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_get_snap_id(mock_remote_image_ctx, "snap2", 124);
+  expect_snap_remove(mock_remote_image_ctx, "snap2", 0);
+  expect_snap_remove(mock_remote_image_ctx, "snap1", 0);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, false, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+
+  client_meta.sync_points.clear();
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, SyncCompleteSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+  ASSERT_EQ(librbd::journal::MIRROR_PEER_STATE_SYNCING, m_client_meta.state);
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_snap_remove(mock_remote_image_ctx, "snap1", 0);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, true, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+  ASSERT_TRUE(m_client_meta.sync_points.empty());
+  ASSERT_EQ(librbd::journal::MIRROR_PEER_STATE_REPLAYING, m_client_meta.state);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, RestartedSyncCompleteSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1",
+					boost::none);
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, true, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+  client_meta.sync_points.pop_front();
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, RestartedCatchUpSyncCompleteSuccess) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap3",
+					"snap2",
+					boost::none);
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_snap_remove(mock_remote_image_ctx, "snap1", 0);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, true, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+  client_meta.sync_points.pop_front();
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, SnapshotDNE) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_snap_remove(mock_remote_image_ctx, "snap1", -ENOENT);
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, 0);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, true, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+  ASSERT_TRUE(m_client_meta.sync_points.empty());
+}
+
+TEST_F(TestMockImageSyncSyncPointPruneRequest, ClientUpdateError) {
+  librbd::journal::MirrorPeerClientMeta client_meta;
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap2",
+					"snap1",
+					boost::none);
+  client_meta.sync_points.emplace_front(cls::rbd::UserSnapshotNamespace(),
+					"snap1",
+					boost::none);
+  m_client_meta = client_meta;
+
+  librbd::MockTestImageCtx mock_remote_image_ctx(*m_remote_image_ctx);
+  journal::MockJournaler mock_journaler;
+
+  InSequence seq;
+  expect_image_refresh(mock_remote_image_ctx, 0);
+  expect_update_client(mock_journaler, -EINVAL);
+
+  C_SaferCond ctx;
+  MockSyncPointPruneRequest *req = create_request(mock_remote_image_ctx,
+                                                  mock_journaler, true, &ctx);
+  req->send();
+  ASSERT_EQ(-EINVAL, ctx.wait());
+
+  ASSERT_EQ(client_meta, m_client_meta);
+}
+
+} // namespace image_sync
+} // namespace mirror
+} // namespace rbd