initial code repo

[stor4nfv.git] / src / ceph / src / test / librbd / object_map / test_mock_SnapshotCreateRequest.cc

diff --git a/src/ceph/src/test/librbd/object_map/test_mock_SnapshotCreateRequest.cc b/src/ceph/src/test/librbd/object_map/test_mock_SnapshotCreateRequest.cc
new file mode 100644 (file)
index 0000000..6aa8d14
--- /dev/null
+++ b/src/ceph/src/test/librbd/object_map/test_mock_SnapshotCreateRequest.cc
@@ -0,0 +1,224 @@
+// -*- 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/librados_test_stub/MockTestMemIoCtxImpl.h"
+#include "common/bit_vector.hpp"
+#include "cls/rbd/cls_rbd_types.h"
+#include "librbd/internal.h"
+#include "librbd/ObjectMap.h"
+#include "librbd/object_map/SnapshotCreateRequest.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+namespace librbd {
+namespace object_map {
+
+using ::testing::_;
+using ::testing::DoDefault;
+using ::testing::Return;
+using ::testing::StrEq;
+
+class TestMockObjectMapSnapshotCreateRequest : public TestMockFixture {
+public:
+  void inject_snap_info(librbd::ImageCtx *ictx, uint64_t snap_id) {
+    RWLock::WLocker snap_locker(ictx->snap_lock);
+    RWLock::RLocker parent_locker(ictx->parent_lock);
+    ictx->add_snap(cls::rbd::UserSnapshotNamespace(), "snap name", snap_id,
+                  ictx->size, ictx->parent_md,
+                   RBD_PROTECTION_STATUS_UNPROTECTED, 0, utime_t());
+  }
+
+  void expect_read_map(librbd::ImageCtx *ictx, int r) {
+    if (r < 0) {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  read(ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP),
+                       0, 0, _)).WillOnce(Return(r));
+    } else {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  read(ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP),
+                       0, 0, _)).WillOnce(DoDefault());
+    }
+  }
+
+  void expect_write_map(librbd::ImageCtx *ictx, uint64_t snap_id, int r) {
+    if (r < 0) {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  write_full(
+                    ObjectMap<>::object_map_name(ictx->id, snap_id), _, _))
+                  .WillOnce(Return(r));
+    } else {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  write_full(
+                    ObjectMap<>::object_map_name(ictx->id, snap_id), _, _))
+                  .WillOnce(DoDefault());
+    }
+  }
+
+  void expect_add_snapshot(librbd::ImageCtx *ictx, int r) {
+    std::string oid(ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP));
+    if (r < 0) {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  exec(oid, _, StrEq("lock"), StrEq("assert_locked"), _, _, _))
+                    .WillOnce(Return(r));
+    } else {
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  exec(oid, _, StrEq("lock"), StrEq("assert_locked"), _, _, _))
+                    .WillOnce(DoDefault());
+      EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                  exec(oid, _, StrEq("rbd"), StrEq("object_map_snap_add"), _, _, _))
+                    .WillOnce(DoDefault());
+    }
+  }
+
+  void expect_invalidate(librbd::ImageCtx *ictx) {
+    EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
+                exec(ictx->header_oid, _, StrEq("rbd"), StrEq("set_flags"), _, _, _))
+                  .WillOnce(DoDefault());
+  }
+};
+
+TEST_F(TestMockObjectMapSnapshotCreateRequest, Success) {
+  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+  ASSERT_EQ(0, acquire_exclusive_lock(*ictx));
+
+  ceph::BitVector<2> object_map;
+
+  uint64_t snap_id = 1;
+  inject_snap_info(ictx, snap_id);
+  expect_read_map(ictx, 0);
+  expect_write_map(ictx, snap_id, 0);
+  if (ictx->test_features(RBD_FEATURE_FAST_DIFF)) {
+    expect_add_snapshot(ictx, 0);
+  }
+
+  C_SaferCond cond_ctx;
+  AsyncRequest<> *request = new SnapshotCreateRequest(
+    *ictx, &object_map, snap_id, &cond_ctx);
+  {
+    RWLock::RLocker snap_locker(ictx->snap_lock);
+    request->send();
+  }
+  ASSERT_EQ(0, cond_ctx.wait());
+
+  expect_unlock_exclusive_lock(*ictx);
+}
+
+TEST_F(TestMockObjectMapSnapshotCreateRequest, ReadMapError) {
+  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+  ASSERT_EQ(0, acquire_exclusive_lock(*ictx));
+
+  ceph::BitVector<2> object_map;
+
+  uint64_t snap_id = 1;
+  inject_snap_info(ictx, snap_id);
+  expect_read_map(ictx, -ENOENT);
+  expect_invalidate(ictx);
+
+  C_SaferCond cond_ctx;
+  AsyncRequest<> *request = new SnapshotCreateRequest(
+    *ictx, &object_map, snap_id, &cond_ctx);
+  {
+    RWLock::RLocker snap_locker(ictx->snap_lock);
+    request->send();
+  }
+  ASSERT_EQ(0, cond_ctx.wait());
+
+  expect_unlock_exclusive_lock(*ictx);
+}
+
+TEST_F(TestMockObjectMapSnapshotCreateRequest, WriteMapError) {
+  REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+  ASSERT_EQ(0, acquire_exclusive_lock(*ictx));
+
+  ceph::BitVector<2> object_map;
+
+  uint64_t snap_id = 1;
+  inject_snap_info(ictx, snap_id);
+  expect_read_map(ictx, 0);
+  expect_write_map(ictx, snap_id, -EINVAL);
+  expect_invalidate(ictx);
+
+  C_SaferCond cond_ctx;
+  AsyncRequest<> *request = new SnapshotCreateRequest(
+    *ictx, &object_map, snap_id, &cond_ctx);
+  {
+    RWLock::RLocker snap_locker(ictx->snap_lock);
+    request->send();
+  }
+  ASSERT_EQ(0, cond_ctx.wait());
+
+  expect_unlock_exclusive_lock(*ictx);
+}
+
+TEST_F(TestMockObjectMapSnapshotCreateRequest, AddSnapshotError) {
+  REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+  ASSERT_EQ(0, acquire_exclusive_lock(*ictx));
+
+  ceph::BitVector<2> object_map;
+
+  uint64_t snap_id = 1;
+  inject_snap_info(ictx, snap_id);
+  expect_read_map(ictx, 0);
+  expect_write_map(ictx, snap_id, 0);
+  expect_add_snapshot(ictx, -EINVAL);
+  expect_invalidate(ictx);
+
+  C_SaferCond cond_ctx;
+  AsyncRequest<> *request = new SnapshotCreateRequest(
+    *ictx, &object_map, snap_id, &cond_ctx);
+  {
+    RWLock::RLocker snap_locker(ictx->snap_lock);
+    request->send();
+  }
+  ASSERT_EQ(0, cond_ctx.wait());
+
+  expect_unlock_exclusive_lock(*ictx);
+}
+
+TEST_F(TestMockObjectMapSnapshotCreateRequest, FlagCleanObjects) {
+  REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
+
+  librbd::ImageCtx *ictx;
+  ASSERT_EQ(0, open_image(m_image_name, &ictx));
+  ASSERT_EQ(0, acquire_exclusive_lock(*ictx));
+
+  ceph::BitVector<2> object_map;
+  object_map.resize(1024);
+  for (uint64_t i = 0; i < object_map.size(); ++i) {
+    object_map[i] = i % 2 == 0 ? OBJECT_EXISTS : OBJECT_NONEXISTENT;
+  }
+
+  uint64_t snap_id = 1;
+  inject_snap_info(ictx, snap_id);
+
+  C_SaferCond cond_ctx;
+  AsyncRequest<> *request = new SnapshotCreateRequest(
+    *ictx, &object_map, snap_id, &cond_ctx);
+  {
+    RWLock::RLocker snap_locker(ictx->snap_lock);
+    request->send();
+  }
+  ASSERT_EQ(0, cond_ctx.wait());
+
+  for (uint64_t i = 0; i < object_map.size(); ++i) {
+    ASSERT_EQ(i % 2 == 0 ? OBJECT_EXISTS_CLEAN : OBJECT_NONEXISTENT,
+              object_map[i]);
+  }
+}
+
+} // namespace object_map
+} // namespace librbd