src/ceph/src/test/librbd/object_map/test_mock_SnapshotRemoveRequest.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3
   4 #include "test/librbd/test_mock_fixture.h"
   5 #include "test/librbd/test_support.h"
   6 #include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
   7 #include "common/bit_vector.hpp"
   8 #include "librbd/ImageState.h"
   9 #include "librbd/internal.h"
  10 #include "librbd/ObjectMap.h"
  11 #include "librbd/object_map/SnapshotRemoveRequest.h"
  12 #include "gmock/gmock.h"
  13 #include "gtest/gtest.h"
  14
  15 namespace librbd {
  16 namespace object_map {
  17
  18 using ::testing::_;
  19 using ::testing::DoDefault;
  20 using ::testing::Return;
  21 using ::testing::StrEq;
  22
  23 class TestMockObjectMapSnapshotRemoveRequest : public TestMockFixture {
  24 public:
  25   void expect_load_map(librbd::ImageCtx *ictx, uint64_t snap_id, int r) {
  26     std::string snap_oid(ObjectMap<>::object_map_name(ictx->id, snap_id));
  27     if (r < 0) {
  28       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  29                   exec(snap_oid, _, StrEq("rbd"), StrEq("object_map_load"), _, _, _))
  30                     .WillOnce(Return(r));
  31     } else {
  32       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  33                   exec(snap_oid, _, StrEq("rbd"), StrEq("object_map_load"), _, _, _))
  34                     .WillOnce(DoDefault());
  35     }
  36   }
  37
  38   void expect_remove_snapshot(librbd::ImageCtx *ictx, int r) {
  39     std::string oid(ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP));
  40     if (r < 0) {
  41       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  42                   exec(oid, _, StrEq("lock"), StrEq("assert_locked"), _, _, _))
  43                     .WillOnce(Return(r));
  44     } else {
  45       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  46                   exec(oid, _, StrEq("lock"), StrEq("assert_locked"), _, _, _))
  47                     .WillOnce(DoDefault());
  48       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  49                   exec(oid, _, StrEq("rbd"), StrEq("object_map_snap_remove"), _, _, _))
  50                     .WillOnce(DoDefault());
  51     }
  52   }
  53
  54   void expect_remove_map(librbd::ImageCtx *ictx, uint64_t snap_id, int r) {
  55     std::string snap_oid(ObjectMap<>::object_map_name(ictx->id, snap_id));
  56     if (r < 0) {
  57       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx), remove(snap_oid, _))
  58                     .WillOnce(Return(r));
  59     } else {
  60       EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx), remove(snap_oid, _))
  61                     .WillOnce(DoDefault());
  62     }
  63   }
  64
  65   void expect_invalidate(librbd::ImageCtx *ictx) {
  66     EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
  67                 exec(ictx->header_oid, _, StrEq("rbd"), StrEq("set_flags"), _, _, _))
  68                   .WillOnce(DoDefault());
  69   }
  70 };
  71
  72 TEST_F(TestMockObjectMapSnapshotRemoveRequest, Success) {
  73   REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
  74
  75   librbd::ImageCtx *ictx;
  76   ASSERT_EQ(0, open_image(m_image_name, &ictx));
  77   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
  78   ASSERT_EQ(0, ictx->state->refresh_if_required());
  79
  80   uint64_t snap_id = ictx->snap_info.rbegin()->first;
  81   if (ictx->test_features(RBD_FEATURE_FAST_DIFF)) {
  82     expect_load_map(ictx, snap_id, 0);
  83     expect_remove_snapshot(ictx, 0);
  84   }
  85   expect_remove_map(ictx, snap_id, 0);
  86
  87   ceph::BitVector<2> object_map;
  88   C_SaferCond cond_ctx;
  89   AsyncRequest<> *request = new SnapshotRemoveRequest(
  90     *ictx, &object_map, snap_id, &cond_ctx);
  91   {
  92     RWLock::RLocker owner_locker(ictx->owner_lock);
  93     RWLock::WLocker snap_locker(ictx->snap_lock);
  94     request->send();
  95   }
  96   ASSERT_EQ(0, cond_ctx.wait());
  97
  98   expect_unlock_exclusive_lock(*ictx);
  99 }
 100
 101 TEST_F(TestMockObjectMapSnapshotRemoveRequest, LoadMapMissing) {
 102   REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
 103
 104   librbd::ImageCtx *ictx;
 105   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 106   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 107   ASSERT_EQ(0, ictx->state->refresh_if_required());
 108
 109   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 110   expect_load_map(ictx, snap_id, -ENOENT);
 111
 112   ceph::BitVector<2> object_map;
 113   C_SaferCond cond_ctx;
 114   AsyncRequest<> *request = new SnapshotRemoveRequest(
 115     *ictx, &object_map, snap_id, &cond_ctx);
 116   {
 117     RWLock::RLocker owner_locker(ictx->owner_lock);
 118     RWLock::WLocker snap_locker(ictx->snap_lock);
 119     request->send();
 120   }
 121   ASSERT_EQ(0, cond_ctx.wait());
 122
 123   expect_unlock_exclusive_lock(*ictx);
 124 }
 125
 126 TEST_F(TestMockObjectMapSnapshotRemoveRequest, LoadMapError) {
 127   REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
 128
 129   librbd::ImageCtx *ictx;
 130   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 131   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 132   ASSERT_EQ(0, ictx->state->refresh_if_required());
 133
 134   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 135   expect_load_map(ictx, snap_id, -EINVAL);
 136   expect_invalidate(ictx);
 137   expect_remove_map(ictx, snap_id, 0);
 138
 139   ceph::BitVector<2> object_map;
 140   C_SaferCond cond_ctx;
 141   AsyncRequest<> *request = new SnapshotRemoveRequest(
 142     *ictx, &object_map, snap_id, &cond_ctx);
 143   {
 144     RWLock::RLocker owner_locker(ictx->owner_lock);
 145     RWLock::WLocker snap_locker(ictx->snap_lock);
 146     request->send();
 147   }
 148   ASSERT_EQ(0, cond_ctx.wait());
 149
 150   expect_unlock_exclusive_lock(*ictx);
 151 }
 152
 153 TEST_F(TestMockObjectMapSnapshotRemoveRequest, RemoveSnapshotMissing) {
 154   REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
 155
 156   librbd::ImageCtx *ictx;
 157   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 158   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 159   ASSERT_EQ(0, ictx->state->refresh_if_required());
 160
 161   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 162   expect_load_map(ictx, snap_id, 0);
 163   expect_remove_snapshot(ictx, -ENOENT);
 164   expect_remove_map(ictx, snap_id, 0);
 165
 166   ceph::BitVector<2> object_map;
 167   C_SaferCond cond_ctx;
 168   AsyncRequest<> *request = new SnapshotRemoveRequest(
 169     *ictx, &object_map, snap_id, &cond_ctx);
 170   {
 171     RWLock::RLocker owner_locker(ictx->owner_lock);
 172     RWLock::WLocker snap_locker(ictx->snap_lock);
 173     request->send();
 174   }
 175   ASSERT_EQ(0, cond_ctx.wait());
 176
 177   expect_unlock_exclusive_lock(*ictx);
 178 }
 179
 180 TEST_F(TestMockObjectMapSnapshotRemoveRequest, RemoveSnapshotError) {
 181   REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
 182
 183   librbd::ImageCtx *ictx;
 184   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 185   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 186   ASSERT_EQ(0, ictx->state->refresh_if_required());
 187
 188   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 189   expect_load_map(ictx, snap_id, 0);
 190   expect_remove_snapshot(ictx, -EINVAL);
 191   expect_invalidate(ictx);
 192   expect_remove_map(ictx, snap_id, 0);
 193
 194   ceph::BitVector<2> object_map;
 195   C_SaferCond cond_ctx;
 196   AsyncRequest<> *request = new SnapshotRemoveRequest(
 197     *ictx, &object_map, snap_id, &cond_ctx);
 198   {
 199     RWLock::RLocker owner_locker(ictx->owner_lock);
 200     RWLock::WLocker snap_locker(ictx->snap_lock);
 201     request->send();
 202   }
 203   ASSERT_EQ(0, cond_ctx.wait());
 204
 205   expect_unlock_exclusive_lock(*ictx);
 206 }
 207
 208 TEST_F(TestMockObjectMapSnapshotRemoveRequest, RemoveMapMissing) {
 209   REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
 210
 211   librbd::ImageCtx *ictx;
 212   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 213   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 214   ASSERT_EQ(0, ictx->state->refresh_if_required());
 215
 216   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 217   if (ictx->test_features(RBD_FEATURE_FAST_DIFF)) {
 218     expect_load_map(ictx, snap_id, 0);
 219     expect_remove_snapshot(ictx, 0);
 220   }
 221   expect_remove_map(ictx, snap_id, -ENOENT);
 222
 223   ceph::BitVector<2> object_map;
 224   C_SaferCond cond_ctx;
 225   AsyncRequest<> *request = new SnapshotRemoveRequest(
 226     *ictx, &object_map, snap_id, &cond_ctx);
 227   {
 228     RWLock::RLocker owner_locker(ictx->owner_lock);
 229     RWLock::WLocker snap_locker(ictx->snap_lock);
 230     request->send();
 231   }
 232   ASSERT_EQ(0, cond_ctx.wait());
 233
 234   expect_unlock_exclusive_lock(*ictx);
 235 }
 236
 237 TEST_F(TestMockObjectMapSnapshotRemoveRequest, RemoveMapError) {
 238   REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
 239
 240   librbd::ImageCtx *ictx;
 241   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 242   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 243   ASSERT_EQ(0, ictx->state->refresh_if_required());
 244
 245   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 246   if (ictx->test_features(RBD_FEATURE_FAST_DIFF)) {
 247     expect_load_map(ictx, snap_id, 0);
 248     expect_remove_snapshot(ictx, 0);
 249   }
 250   expect_remove_map(ictx, snap_id, -EINVAL);
 251
 252   ceph::BitVector<2> object_map;
 253   C_SaferCond cond_ctx;
 254   AsyncRequest<> *request = new SnapshotRemoveRequest(
 255     *ictx, &object_map, snap_id, &cond_ctx);
 256   {
 257     RWLock::RLocker owner_locker(ictx->owner_lock);
 258     RWLock::WLocker snap_locker(ictx->snap_lock);
 259     request->send();
 260   }
 261   ASSERT_EQ(-EINVAL, cond_ctx.wait());
 262
 263   expect_unlock_exclusive_lock(*ictx);
 264 }
 265
 266 TEST_F(TestMockObjectMapSnapshotRemoveRequest, ScrubCleanObjects) {
 267   REQUIRE_FEATURE(RBD_FEATURE_FAST_DIFF);
 268
 269   librbd::ImageCtx *ictx;
 270   ASSERT_EQ(0, open_image(m_image_name, &ictx));
 271   ASSERT_EQ(0, snap_create(*ictx, "snap1"));
 272   ASSERT_EQ(0, ictx->state->refresh_if_required());
 273
 274   uint64_t snap_id = ictx->snap_info.rbegin()->first;
 275
 276   ceph::BitVector<2> object_map;
 277   object_map.resize(1024);
 278   for (uint64_t i = 512; i < object_map.size(); ++i) {
 279     object_map[i] = i % 2 == 0 ? OBJECT_EXISTS_CLEAN : OBJECT_NONEXISTENT;
 280   }
 281
 282   C_SaferCond cond_ctx;
 283   AsyncRequest<> *request = new SnapshotRemoveRequest(
 284     *ictx, &object_map, snap_id, &cond_ctx);
 285   {
 286     RWLock::RLocker owner_locker(ictx->owner_lock);
 287     RWLock::WLocker snap_locker(ictx->snap_lock);
 288     request->send();
 289   }
 290   ASSERT_EQ(0, cond_ctx.wait());
 291
 292   for (uint64_t i = 512; i < object_map.size(); ++i) {
 293     ASSERT_EQ(i % 2 == 0 ? OBJECT_EXISTS : OBJECT_NONEXISTENT,
 294               object_map[i]);
 295   }
 296 }
 297
 298 } // namespace object_map
 299 } // namespace librbd