Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 901 insertions, 0 deletions

diff --git a/src/test/librbd/exclusive_lock/test_mock_PostAcquireRequest.cc b/src/test/librbd/exclusive_lock/test_mock_PostAcquireRequest.cc
new file mode 100644
index 00000000..b38fbed9
--- /dev/null
+++ b/src/test/librbd/exclusive_lock/test_mock_PostAcquireRequest.cc
@@ -0,0 +1,514 @@
+// -*- 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/librbd/mock/MockImageState.h"
+#include "test/librbd/mock/MockJournal.h"
+#include "test/librbd/mock/MockJournalPolicy.h"
+#include "test/librbd/mock/MockObjectMap.h"
+#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "test/librados_test_stub/MockTestMemRadosClient.h"
+#include "librbd/exclusive_lock/PostAcquireRequest.h"
+#include "librbd/image/RefreshRequest.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include <arpa/inet.h>
+#include <list>
+
+namespace librbd {
+namespace {
+
+struct MockTestImageCtx : public librbd::MockImageCtx {
+  explicit MockTestImageCtx(librbd::ImageCtx &image_ctx)
+    : librbd::MockImageCtx(image_ctx) {
+  }
+};
+
+inline ImageCtx &get_image_ctx(MockTestImageCtx &image_ctx) {
+  return *(image_ctx.image_ctx);
+}
+
+} // anonymous namespace
+
+namespace image {
+
+template<>
+struct RefreshRequest<librbd::MockTestImageCtx> {
+  static RefreshRequest *s_instance;
+  Context *on_finish = nullptr;
+
+  static RefreshRequest *create(librbd::MockTestImageCtx &image_ctx,
+                                bool acquire_lock_refresh,
+                                bool skip_open_parent, Context *on_finish) {
+    EXPECT_TRUE(acquire_lock_refresh);
+    ceph_assert(s_instance != nullptr);
+    s_instance->on_finish = on_finish;
+    return s_instance;
+  }
+
+  RefreshRequest() {
+    s_instance = this;
+  }
+  MOCK_METHOD0(send, void());
+};
+
+RefreshRequest<librbd::MockTestImageCtx> *RefreshRequest<librbd::MockTestImageCtx>::s_instance = nullptr;
+
+} // namespace image
+} // namespace librbd
+
+// template definitions
+#include "librbd/Journal.cc"
+
+#include "librbd/exclusive_lock/PostAcquireRequest.cc"
+template class librbd::exclusive_lock::PostAcquireRequest<librbd::MockTestImageCtx>;
+
+ACTION_P3(FinishRequest2, request, r, mock) {
+  mock->image_ctx->op_work_queue->queue(request->on_finish, r);
+}
+
+
+namespace librbd {
+namespace exclusive_lock {
+
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::InSequence;
+using ::testing::Invoke;
+using ::testing::Return;
+using ::testing::SetArgPointee;
+using ::testing::StrEq;
+using ::testing::WithArg;
+
+static const std::string TEST_COOKIE("auto 123");
+
+class TestMockExclusiveLockPostAcquireRequest : public TestMockFixture {
+public:
+  typedef PostAcquireRequest<MockTestImageCtx> MockPostAcquireRequest;
+  typedef librbd::image::RefreshRequest<MockTestImageCtx> MockRefreshRequest;
+
+  void expect_test_features(MockTestImageCtx &mock_image_ctx, uint64_t features,
+                            bool enabled) {
+    EXPECT_CALL(mock_image_ctx, test_features(features))
+                  .WillOnce(Return(enabled));
+  }
+
+  void expect_test_features(MockTestImageCtx &mock_image_ctx, uint64_t features,
+                            RWLock &lock, bool enabled) {
+    EXPECT_CALL(mock_image_ctx, test_features(features, _))
+                  .WillOnce(Return(enabled));
+  }
+
+  void expect_is_refresh_required(MockTestImageCtx &mock_image_ctx, bool required) {
+    EXPECT_CALL(*mock_image_ctx.state, is_refresh_required())
+      .WillOnce(Return(required));
+  }
+
+  void expect_refresh(MockTestImageCtx &mock_image_ctx,
+                      MockRefreshRequest &mock_refresh_request, int r) {
+    EXPECT_CALL(mock_refresh_request, send())
+                  .WillOnce(FinishRequest2(&mock_refresh_request, r,
+                                           &mock_image_ctx));
+  }
+
+  void expect_create_object_map(MockTestImageCtx &mock_image_ctx,
+                                MockObjectMap *mock_object_map) {
+    EXPECT_CALL(mock_image_ctx, create_object_map(_))
+                  .WillOnce(Return(mock_object_map));
+  }
+
+  void expect_open_object_map(MockTestImageCtx &mock_image_ctx,
+                              MockObjectMap &mock_object_map, int r) {
+    EXPECT_CALL(mock_object_map, open(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_close_object_map(MockTestImageCtx &mock_image_ctx,
+                              MockObjectMap &mock_object_map) {
+    EXPECT_CALL(mock_object_map, close(_))
+                  .WillOnce(CompleteContext(0, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_create_journal(MockTestImageCtx &mock_image_ctx,
+                             MockJournal *mock_journal) {
+    EXPECT_CALL(mock_image_ctx, create_journal())
+                  .WillOnce(Return(mock_journal));
+  }
+
+  void expect_open_journal(MockTestImageCtx &mock_image_ctx,
+                           MockJournal &mock_journal, int r) {
+    EXPECT_CALL(mock_journal, open(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_close_journal(MockTestImageCtx &mock_image_ctx,
+                            MockJournal &mock_journal) {
+    EXPECT_CALL(mock_journal, close(_))
+                  .WillOnce(CompleteContext(0, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_get_journal_policy(MockTestImageCtx &mock_image_ctx,
+                                 MockJournalPolicy &mock_journal_policy) {
+    EXPECT_CALL(mock_image_ctx, get_journal_policy())
+                  .WillOnce(Return(&mock_journal_policy));
+  }
+
+  void expect_journal_disabled(MockJournalPolicy &mock_journal_policy,
+                               bool disabled) {
+    EXPECT_CALL(mock_journal_policy, journal_disabled())
+      .WillOnce(Return(disabled));
+  }
+
+  void expect_allocate_journal_tag(MockTestImageCtx &mock_image_ctx,
+                                   MockJournalPolicy &mock_journal_policy,
+                                   int r) {
+    EXPECT_CALL(mock_journal_policy, allocate_tag_on_lock(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_handle_prepare_lock_complete(MockTestImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.state, handle_prepare_lock_complete());
+  }
+
+};
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, Success) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap mock_object_map;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, &mock_object_map);
+  expect_open_object_map(mock_image_ctx, mock_object_map, 0);
+
+  MockJournal mock_journal;
+  MockJournalPolicy mock_journal_policy;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, true);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_journal_disabled(mock_journal_policy, false);
+  expect_create_journal(mock_image_ctx, &mock_journal);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+  expect_open_journal(mock_image_ctx, mock_journal, 0);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_allocate_journal_tag(mock_image_ctx, mock_journal_policy, 0);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+ }
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, SuccessRefresh) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  MockRefreshRequest mock_refresh_request;
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, true);
+  expect_refresh(mock_image_ctx, mock_refresh_request, 0);
+
+  MockObjectMap mock_object_map;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, false);
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, false);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, SuccessJournalDisabled) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap mock_object_map;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, &mock_object_map);
+  expect_open_object_map(mock_image_ctx, mock_object_map, 0);
+
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, false);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, SuccessObjectMapDisabled) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, false);
+
+  MockJournal mock_journal;
+  MockJournalPolicy mock_journal_policy;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, true);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_journal_disabled(mock_journal_policy, false);
+  expect_create_journal(mock_image_ctx, &mock_journal);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+  expect_open_journal(mock_image_ctx, mock_journal, 0);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_allocate_journal_tag(mock_image_ctx, mock_journal_policy, 0);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, RefreshError) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  MockRefreshRequest mock_refresh_request;
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, true);
+  expect_refresh(mock_image_ctx, mock_refresh_request, -EINVAL);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond *acquire_ctx = new C_SaferCond();
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(-EINVAL, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, RefreshLockDisabled) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  MockRefreshRequest mock_refresh_request;
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, true);
+  expect_refresh(mock_image_ctx, mock_refresh_request, -ERESTART);
+
+  MockObjectMap mock_object_map;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, false);
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, false);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, JournalError) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, mock_object_map);
+  expect_open_object_map(mock_image_ctx, *mock_object_map, 0);
+
+  MockJournal *mock_journal = new MockJournal();
+  MockJournalPolicy mock_journal_policy;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, true);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_journal_disabled(mock_journal_policy, false);
+  expect_create_journal(mock_image_ctx, mock_journal);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+  expect_open_journal(mock_image_ctx, *mock_journal, -EINVAL);
+  expect_close_journal(mock_image_ctx, *mock_journal);
+  expect_close_object_map(mock_image_ctx, *mock_object_map);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(-EINVAL, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, AllocateJournalTagError) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, mock_object_map);
+  expect_open_object_map(mock_image_ctx, *mock_object_map, 0);
+
+  MockJournal *mock_journal = new MockJournal();
+  MockJournalPolicy mock_journal_policy;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, true);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_journal_disabled(mock_journal_policy, false);
+  expect_create_journal(mock_image_ctx, mock_journal);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+  expect_open_journal(mock_image_ctx, *mock_journal, 0);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_allocate_journal_tag(mock_image_ctx, mock_journal_policy, -EPERM);
+  expect_close_journal(mock_image_ctx, *mock_journal);
+  expect_close_object_map(mock_image_ctx, *mock_object_map);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(-EPERM, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, OpenObjectMapError) {
+  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, mock_object_map);
+  expect_open_object_map(mock_image_ctx, *mock_object_map, -EINVAL);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond *acquire_ctx = new C_SaferCond();
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(-EINVAL, ctx.wait());
+  ASSERT_EQ(nullptr, mock_image_ctx.object_map);
+}
+
+TEST_F(TestMockExclusiveLockPostAcquireRequest, OpenObjectMapTooBig) {
+  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_is_refresh_required(mock_image_ctx, false);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  expect_test_features(mock_image_ctx, RBD_FEATURE_OBJECT_MAP, true);
+  expect_create_object_map(mock_image_ctx, mock_object_map);
+  expect_open_object_map(mock_image_ctx, *mock_object_map, -EFBIG);
+
+  MockJournal mock_journal;
+  MockJournalPolicy mock_journal_policy;
+  expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                       mock_image_ctx.snap_lock, true);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_journal_disabled(mock_journal_policy, false);
+  expect_create_journal(mock_image_ctx, &mock_journal);
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+  expect_open_journal(mock_image_ctx, mock_journal, 0);
+  expect_get_journal_policy(mock_image_ctx, mock_journal_policy);
+  expect_allocate_journal_tag(mock_image_ctx, mock_journal_policy, 0);
+
+  C_SaferCond acquire_ctx;
+  C_SaferCond ctx;
+  MockPostAcquireRequest *req = MockPostAcquireRequest::create(mock_image_ctx,
+                                                               &acquire_ctx,
+                                                               &ctx);
+  req->send();
+  ASSERT_EQ(0, acquire_ctx.wait());
+  ASSERT_EQ(0, ctx.wait());
+  ASSERT_EQ(nullptr, mock_image_ctx.object_map);
+}
+
+} // namespace exclusive_lock
+} // namespace librbd
diff --git a/src/test/librbd/exclusive_lock/test_mock_PreAcquireRequest.cc b/src/test/librbd/exclusive_lock/test_mock_PreAcquireRequest.cc
new file mode 100644
index 00000000..5b4bce6d
--- /dev/null
+++ b/src/test/librbd/exclusive_lock/test_mock_PreAcquireRequest.cc
@@ -0,0 +1,92 @@
+// -*- 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 "test/librados_test_stub/MockTestMemRadosClient.h"
+#include "librbd/exclusive_lock/PreAcquireRequest.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include <arpa/inet.h>
+#include <list>
+
+namespace librbd {
+namespace {
+
+struct MockTestImageCtx : public librbd::MockImageCtx {
+  explicit MockTestImageCtx(librbd::ImageCtx &image_ctx)
+    : librbd::MockImageCtx(image_ctx) {
+  }
+};
+
+inline ImageCtx &get_image_ctx(MockTestImageCtx &image_ctx) {
+  return *(image_ctx.image_ctx);
+}
+
+} // anonymous namespace
+} // namespace librbd
+
+// template definitions
+#include "librbd/exclusive_lock/PreAcquireRequest.cc"
+template class librbd::exclusive_lock::PreAcquireRequest<librbd::MockTestImageCtx>;
+
+namespace librbd {
+namespace exclusive_lock {
+
+using ::testing::_;
+using ::testing::DoAll;
+using ::testing::InSequence;
+using ::testing::Invoke;
+using ::testing::Return;
+using ::testing::SetArgPointee;
+using ::testing::StrEq;
+using ::testing::WithArg;
+
+static const std::string TEST_COOKIE("auto 123");
+
+class TestMockExclusiveLockPreAcquireRequest : public TestMockFixture {
+public:
+  typedef PreAcquireRequest<MockTestImageCtx> MockPreAcquireRequest;
+
+  void expect_flush_notifies(MockTestImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.image_watcher, flush(_))
+                  .WillOnce(CompleteContext(0, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_prepare_lock(MockTestImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.state, prepare_lock(_))
+      .WillOnce(Invoke([](Context *on_ready) {
+                  on_ready->complete(0);
+                }));
+  }
+
+  void expect_handle_prepare_lock_complete(MockTestImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.state, handle_prepare_lock_complete());
+  }
+
+};
+
+TEST_F(TestMockExclusiveLockPreAcquireRequest, Success) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockTestImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_prepare_lock(mock_image_ctx);
+  expect_flush_notifies(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreAcquireRequest *req = MockPreAcquireRequest::create(mock_image_ctx,
+                                                             &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+ }
+
+} // namespace exclusive_lock
+} // namespace librbd
diff --git a/src/test/librbd/exclusive_lock/test_mock_PreReleaseRequest.cc b/src/test/librbd/exclusive_lock/test_mock_PreReleaseRequest.cc
new file mode 100644
index 00000000..989e793f
--- /dev/null
+++ b/src/test/librbd/exclusive_lock/test_mock_PreReleaseRequest.cc
@@ -0,0 +1,295 @@
+// -*- 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/librbd/mock/MockJournal.h"
+#include "test/librbd/mock/MockObjectMap.h"
+#include "test/librbd/mock/io/MockObjectDispatch.h"
+#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "common/AsyncOpTracker.h"
+#include "librbd/exclusive_lock/PreReleaseRequest.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+#include <list>
+
+// template definitions
+#include "librbd/exclusive_lock/PreReleaseRequest.cc"
+template class librbd::exclusive_lock::PreReleaseRequest<librbd::MockImageCtx>;
+
+namespace librbd {
+
+namespace exclusive_lock {
+
+namespace {
+
+struct MockContext : public Context {
+  MOCK_METHOD1(complete, void(int));
+  MOCK_METHOD1(finish, void(int));
+};
+
+} // anonymous namespace
+
+using ::testing::_;
+using ::testing::InSequence;
+using ::testing::Invoke;
+using ::testing::Return;
+using ::testing::StrEq;
+using ::testing::WithArg;
+
+static const std::string TEST_COOKIE("auto 123");
+
+class TestMockExclusiveLockPreReleaseRequest : public TestMockFixture {
+public:
+  typedef PreReleaseRequest<MockImageCtx> MockPreReleaseRequest;
+
+  void expect_complete_context(MockContext &mock_context, int r) {
+    EXPECT_CALL(mock_context, complete(r));
+  }
+
+  void expect_test_features(MockImageCtx &mock_image_ctx, uint64_t features,
+                            bool enabled) {
+    EXPECT_CALL(mock_image_ctx, test_features(features))
+                  .WillOnce(Return(enabled));
+  }
+
+  void expect_set_require_lock(MockImageCtx &mock_image_ctx,
+                               librbd::io::Direction direction, bool enabled) {
+    EXPECT_CALL(*mock_image_ctx.io_work_queue, set_require_lock(direction,
+                                                                enabled));
+  }
+
+  void expect_block_writes(MockImageCtx &mock_image_ctx, int r) {
+    expect_test_features(mock_image_ctx, RBD_FEATURE_JOURNALING,
+                         ((mock_image_ctx.features & RBD_FEATURE_JOURNALING) != 0));
+    if (mock_image_ctx.clone_copy_on_read ||
+        (mock_image_ctx.features & RBD_FEATURE_JOURNALING) != 0) {
+      expect_set_require_lock(mock_image_ctx, librbd::io::DIRECTION_BOTH, true);
+    } else {
+      expect_set_require_lock(mock_image_ctx, librbd::io::DIRECTION_WRITE,
+                              true);
+    }
+    EXPECT_CALL(*mock_image_ctx.io_work_queue, block_writes(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_unblock_writes(MockImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.io_work_queue, unblock_writes());
+  }
+
+  void expect_cancel_op_requests(MockImageCtx &mock_image_ctx, int r) {
+    EXPECT_CALL(mock_image_ctx, cancel_async_requests(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_close_journal(MockImageCtx &mock_image_ctx,
+                           MockJournal &mock_journal, int r) {
+    EXPECT_CALL(mock_journal, close(_))
+                  .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_close_object_map(MockImageCtx &mock_image_ctx,
+                               MockObjectMap &mock_object_map) {
+    EXPECT_CALL(mock_object_map, close(_))
+                  .WillOnce(CompleteContext(0, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_invalidate_cache(MockImageCtx &mock_image_ctx,
+                               int r) {
+    EXPECT_CALL(*mock_image_ctx.io_object_dispatcher, invalidate_cache(_))
+      .WillOnce(CompleteContext(r, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_flush_notifies(MockImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.image_watcher, flush(_))
+                  .WillOnce(CompleteContext(0, mock_image_ctx.image_ctx->op_work_queue));
+  }
+
+  void expect_prepare_lock(MockImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.state, prepare_lock(_))
+      .WillOnce(Invoke([](Context *on_ready) {
+                  on_ready->complete(0);
+                }));
+  }
+
+  void expect_handle_prepare_lock_complete(MockImageCtx &mock_image_ctx) {
+    EXPECT_CALL(*mock_image_ctx.state, handle_prepare_lock_complete());
+  }
+
+  AsyncOpTracker m_async_op_tracker;
+};
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, Success) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+
+  expect_prepare_lock(mock_image_ctx);
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_block_writes(mock_image_ctx, 0);
+  expect_invalidate_cache(mock_image_ctx, 0);
+
+  expect_flush_notifies(mock_image_ctx);
+
+  MockJournal *mock_journal = new MockJournal();
+  mock_image_ctx.journal = mock_journal;
+  expect_close_journal(mock_image_ctx, *mock_journal, -EINVAL);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  mock_image_ctx.object_map = mock_object_map;
+  expect_close_object_map(mock_image_ctx, *mock_object_map);
+
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, false, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, SuccessJournalDisabled) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  expect_block_writes(mock_image_ctx, 0);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_prepare_lock(mock_image_ctx);
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_invalidate_cache(mock_image_ctx, 0);
+
+  expect_flush_notifies(mock_image_ctx);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  mock_image_ctx.object_map = mock_object_map;
+  expect_close_object_map(mock_image_ctx, *mock_object_map);
+
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, false, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, SuccessObjectMapDisabled) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  expect_block_writes(mock_image_ctx, 0);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_invalidate_cache(mock_image_ctx, 0);
+
+  expect_flush_notifies(mock_image_ctx);
+
+  C_SaferCond release_ctx;
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, true, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, Blacklisted) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_prepare_lock(mock_image_ctx);
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_block_writes(mock_image_ctx, -EBLACKLISTED);
+  expect_invalidate_cache(mock_image_ctx, -EBLACKLISTED);
+
+  expect_flush_notifies(mock_image_ctx);
+
+  MockJournal *mock_journal = new MockJournal();
+  mock_image_ctx.journal = mock_journal;
+  expect_close_journal(mock_image_ctx, *mock_journal, -EBLACKLISTED);
+
+  MockObjectMap *mock_object_map = new MockObjectMap();
+  mock_image_ctx.object_map = mock_object_map;
+  expect_close_object_map(mock_image_ctx, *mock_object_map);
+
+  expect_handle_prepare_lock_complete(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, false, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, BlockWritesError) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_block_writes(mock_image_ctx, -EINVAL);
+  expect_unblock_writes(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, true, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(-EINVAL, ctx.wait());
+}
+
+TEST_F(TestMockExclusiveLockPreReleaseRequest, UnlockError) {
+  REQUIRE_FEATURE(RBD_FEATURE_EXCLUSIVE_LOCK);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+
+  MockImageCtx mock_image_ctx(*ictx);
+
+  expect_op_work_queue(mock_image_ctx);
+
+  InSequence seq;
+  expect_cancel_op_requests(mock_image_ctx, 0);
+  expect_block_writes(mock_image_ctx, 0);
+  expect_invalidate_cache(mock_image_ctx, 0);
+
+  expect_flush_notifies(mock_image_ctx);
+
+  C_SaferCond ctx;
+  MockPreReleaseRequest *req = MockPreReleaseRequest::create(
+    mock_image_ctx, true, m_async_op_tracker, &ctx);
+  req->send();
+  ASSERT_EQ(0, ctx.wait());
+}
+
+} // namespace exclusive_lock
+} // namespace librbd