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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/librbd/test_mock_fixture.h"
#include "test/librbd/test_support.h"
#include "test/librados_test_stub/MockTestMemIoCtxImpl.h"
#include "librbd/ImageState.h"
#include "librbd/internal.h"
#include "librbd/ObjectMap.h"
#include "librbd/object_map/SnapshotRollbackRequest.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 TestMockObjectMapSnapshotRollbackRequest : public TestMockFixture {
public:
void expect_read_map(librbd::ImageCtx *ictx, uint64_t snap_id, int r) {
if (r < 0) {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
read(ObjectMap<>::object_map_name(ictx->id, snap_id),
0, 0, _, _, _)).WillOnce(Return(r));
} else {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
read(ObjectMap<>::object_map_name(ictx->id, snap_id),
0, 0, _, _, _)).WillOnce(DoDefault());
}
}
void expect_write_map(librbd::ImageCtx *ictx, int r) {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
exec(ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP), _,
StrEq("lock"), StrEq("assert_locked"), _, _, _, _))
.WillOnce(DoDefault());
if (r < 0) {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
write_full(
ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP), _, _))
.WillOnce(Return(r));
} else {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
write_full(
ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP), _, _))
.WillOnce(DoDefault());
}
}
void expect_invalidate(librbd::ImageCtx *ictx, uint32_t times) {
EXPECT_CALL(get_mock_io_ctx(ictx->md_ctx),
exec(ictx->header_oid, _, StrEq("rbd"), StrEq("set_flags"), _,
_, _, _))
.Times(times)
.WillRepeatedly(DoDefault());
}
};
TEST_F(TestMockObjectMapSnapshotRollbackRequest, Success) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
ASSERT_EQ(0, snap_create(*ictx, "snap1"));
ASSERT_EQ(0, ictx->state->refresh_if_required());
uint64_t snap_id = ictx->snap_info.rbegin()->first;
expect_read_map(ictx, snap_id, 0);
expect_write_map(ictx, 0);
C_SaferCond cond_ctx;
AsyncRequest<> *request = new SnapshotRollbackRequest(
*ictx, snap_id, &cond_ctx);
request->send();
ASSERT_EQ(0, cond_ctx.wait());
expect_unlock_exclusive_lock(*ictx);
}
TEST_F(TestMockObjectMapSnapshotRollbackRequest, ReadMapError) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
ASSERT_EQ(0, snap_create(*ictx, "snap1"));
ASSERT_EQ(0, ictx->state->refresh_if_required());
uint64_t snap_id = ictx->snap_info.rbegin()->first;
expect_read_map(ictx, snap_id, -ENOENT);
expect_invalidate(ictx, 2);
C_SaferCond cond_ctx;
AsyncRequest<> *request = new SnapshotRollbackRequest(
*ictx, snap_id, &cond_ctx);
request->send();
ASSERT_EQ(0, cond_ctx.wait());
{
std::shared_lock image_locker{ictx->image_lock};
uint64_t flags;
ASSERT_EQ(0, ictx->get_flags(snap_id, &flags));
ASSERT_NE(0U, flags & RBD_FLAG_OBJECT_MAP_INVALID);
}
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP,
RBD_FLAG_OBJECT_MAP_INVALID, &flags_set));
ASSERT_TRUE(flags_set);
expect_unlock_exclusive_lock(*ictx);
}
TEST_F(TestMockObjectMapSnapshotRollbackRequest, WriteMapError) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
ASSERT_EQ(0, snap_create(*ictx, "snap1"));
ASSERT_EQ(0, ictx->state->refresh_if_required());
uint64_t snap_id = ictx->snap_info.rbegin()->first;
expect_read_map(ictx, snap_id, 0);
expect_write_map(ictx, -EINVAL);
expect_invalidate(ictx, 1);
C_SaferCond cond_ctx;
AsyncRequest<> *request = new SnapshotRollbackRequest(
*ictx, snap_id, &cond_ctx);
request->send();
ASSERT_EQ(0, cond_ctx.wait());
{
std::shared_lock image_locker{ictx->image_lock};
uint64_t flags;
ASSERT_EQ(0, ictx->get_flags(snap_id, &flags));
ASSERT_EQ(0U, flags & RBD_FLAG_OBJECT_MAP_INVALID);
}
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP,
RBD_FLAG_OBJECT_MAP_INVALID, &flags_set));
ASSERT_TRUE(flags_set);
expect_unlock_exclusive_lock(*ictx);
}
} // namespace object_map
} // namespace librbd
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