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db_test.go_
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db_test.go_
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package quantum
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/outofforest/quantum/list"
"github.com/outofforest/quantum/space"
"github.com/outofforest/quantum/test"
"github.com/outofforest/quantum/types"
)
const (
space0 types.SpaceID = 0x00
space1 types.SpaceID = 0x01
space2 types.SpaceID = 0x02
)
func TestCommitNewSnapshots(t *testing.T) {
requireT := require.New(t)
db, allocator := newDB(requireT)
// Initial state
requireT.Equal(types.SingularityNode{
Version: 0x00,
FirstSnapshotID: 0x00,
LastSnapshotID: 0x00,
SnapshotRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
}, *db.nextSnapshot.SingularityNode)
requireT.Equal([]types.SnapshotID{}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Empty(db.nextSnapshot.DeallocationLists.Nodes())
// Snapshot 0
s0, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(db.Commit())
snapshot0 := newSnapshot(requireT, 0x00, db)
nodesUsed, nodesAllocated, nodesDeallocated := allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x01}, nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x01}, db.nextSnapshot.Snapshots.Nodes())
requireT.Empty(snapshot0.Spaces.Nodes())
requireT.Empty(s0.Nodes())
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Equal(types.SingularityNode{
Version: 0x00,
FirstSnapshotID: 0x00,
LastSnapshotID: 0x01,
SnapshotRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x01,
},
HashMod: 0x00,
},
}, *db.nextSnapshot.SingularityNode)
requireT.Equal([]types.SnapshotID{0x00}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
snapshotInfoValue := db.nextSnapshot.Snapshots.Get(0x00)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x01,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
// Snapshot 1
s1, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s1.Get(0).Set(0)))
requireT.NoError(test.Error(s1.Get(1).Set(1)))
requireT.NoError(test.Error(s1.Get(2).Set(2)))
requireT.NoError(test.Error(s1.Get(3).Set(3)))
requireT.NoError(test.Error(s1.Get(4).Set(4)))
requireT.NoError(db.Commit())
snapshot1 := newSnapshot(requireT, 0x01, db)
nodesUsed, nodesAllocated, nodesDeallocated = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x02, 0x03}, nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x01}, db.nextSnapshot.Snapshots.Nodes())
requireT.Empty(snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot1.Spaces.Nodes())
requireT.Empty(s0.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s1.Nodes())
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Empty(snapshot1.DeallocationLists.Nodes())
requireT.Equal(types.SingularityNode{
Version: 0x00,
FirstSnapshotID: 0x00,
LastSnapshotID: 0x02,
SnapshotRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x01,
Address: 0x01,
},
HashMod: 0x00,
},
}, *db.nextSnapshot.SingularityNode)
requireT.Equal([]types.SnapshotID{0x00, 0x01}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Equal([]types.SpaceID{space0}, test.CollectSpaceKeys(snapshot1.Spaces))
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x00)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x01,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x01)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x02,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x01,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
spaceInfoValue := snapshot1.Spaces.Get(space0)
requireT.True(spaceInfoValue.Exists())
requireT.Equal(types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x01,
Address: 0x02,
},
HashMod: 0x00,
}, spaceInfoValue.Value())
// Snapshot 2
s2, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s2.Get(0).Set(10)))
requireT.NoError(db.Commit())
snapshot2 := newSnapshot(requireT, 0x02, db)
nodesUsed, nodesAllocated, nodesDeallocated = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Empty(nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x01}, db.nextSnapshot.Snapshots.Nodes())
requireT.Empty(snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot2.Spaces.Nodes())
requireT.Empty(s0.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s1.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s2.Nodes())
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Empty(snapshot1.DeallocationLists.Nodes())
requireT.Empty(snapshot2.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot2.DeallocationLists))
requireT.Equal(types.SingularityNode{
Version: 0x00,
FirstSnapshotID: 0x00,
LastSnapshotID: 0x03,
SnapshotRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x02,
Address: 0x01,
},
HashMod: 0x00,
},
}, *db.nextSnapshot.SingularityNode)
requireT.Equal([]types.SnapshotID{0x00, 0x01, 0x02}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Equal([]types.SpaceID{space0}, test.CollectSpaceKeys(snapshot2.Spaces))
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x00)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x01,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x01)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x02,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x01,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x02)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x01,
NextSnapshotID: 0x03,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x02,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
spaceInfoValue = snapshot2.Spaces.Get(space0)
requireT.True(spaceInfoValue.Exists())
requireT.Equal(types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x02,
Address: 0x02,
},
HashMod: 0x00,
}, spaceInfoValue.Value())
// Snapshot 3
s3, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s3.Get(0).Set(20)))
requireT.NoError(test.Error(s3.Get(4).Set(24)))
requireT.NoError(db.Commit())
snapshot3 := newSnapshot(requireT, 0x03, db)
nodesUsed, nodesAllocated, nodesDeallocated = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Empty(nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x01}, db.nextSnapshot.Snapshots.Nodes())
requireT.Empty(snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, snapshot3.Spaces.Nodes())
requireT.Empty(s0.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s1.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s2.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, s3.Nodes())
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Empty(snapshot1.DeallocationLists.Nodes())
requireT.Empty(snapshot2.DeallocationLists.Nodes())
requireT.Empty(snapshot3.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot2.DeallocationLists))
requireT.Empty(test.CollectSpaceKeys(snapshot3.DeallocationLists))
requireT.Equal(types.SingularityNode{
Version: 0x00,
FirstSnapshotID: 0x00,
LastSnapshotID: 0x04,
SnapshotRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x03,
Address: 0x01,
},
HashMod: 0x00,
},
}, *db.nextSnapshot.SingularityNode)
requireT.Equal([]types.SnapshotID{0x00, 0x01, 0x02, 0x03}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Equal([]types.SpaceID{space0}, test.CollectSpaceKeys(snapshot3.Spaces))
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x00)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x01,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x01)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x00,
NextSnapshotID: 0x02,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x01,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x02)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x01,
NextSnapshotID: 0x03,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x02,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
snapshotInfoValue = db.nextSnapshot.Snapshots.Get(0x03)
requireT.True(snapshotInfoValue.Exists())
requireT.Equal(types.SnapshotInfo{
PreviousSnapshotID: 0x02,
NextSnapshotID: 0x04,
DeallocationRoot: types.SpaceInfo{
State: types.StateFree,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x00,
Address: 0x00,
},
HashMod: 0x00,
},
SpaceRoot: types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x03,
Address: 0x03,
},
HashMod: 0x00,
},
}, snapshotInfoValue.Value())
spaceInfoValue = snapshot3.Spaces.Get(space0)
requireT.True(spaceInfoValue.Exists())
requireT.Equal(types.SpaceInfo{
State: types.StateData,
Pointer: types.Pointer{
Version: 0x00,
SnapshotID: 0x03,
Address: 0x02,
},
HashMod: 0x00,
}, spaceInfoValue.Value())
}
func TestSpaces(t *testing.T) {
requireT := require.New(t)
db, _ := newDB(requireT)
// Snapshot 0
s00, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s00.Get(0).Set(0x000)))
requireT.NoError(test.Error(s00.Get(1).Set(0x001)))
v0 := s00.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x000, v0.Value())
v1 := s00.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x001, v1.Value())
requireT.NoError(db.Commit())
// Snapshot 1
s10, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
s11, err := GetSpace[int, int](space1, db)
requireT.NoError(err)
v0 = s10.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x000, v0.Value())
v1 = s10.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x001, v1.Value())
requireT.NoError(test.Error(s10.Get(0).Set(0x100)))
requireT.NoError(test.Error(s10.Get(1).Set(0x101)))
requireT.NoError(test.Error(s11.Get(0).Set(0x110)))
requireT.NoError(test.Error(s11.Get(1).Set(0x111)))
v0 = s10.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x100, v0.Value())
v1 = s10.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x101, v1.Value())
v0 = s11.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x110, v0.Value())
v1 = s11.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x111, v1.Value())
requireT.NoError(db.Commit())
// Snapshot 2
s20, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
s21, err := GetSpace[int, int](space1, db)
requireT.NoError(err)
s22, err := GetSpace[int, int](space2, db)
requireT.NoError(err)
v0 = s20.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x100, v0.Value())
v1 = s20.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x101, v1.Value())
v0 = s21.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x110, v0.Value())
v1 = s21.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x111, v1.Value())
requireT.NoError(test.Error(s20.Get(0).Set(0x200)))
requireT.NoError(test.Error(s20.Get(1).Set(0x201)))
requireT.NoError(test.Error(s21.Get(0).Set(0x210)))
requireT.NoError(test.Error(s21.Get(1).Set(0x211)))
requireT.NoError(test.Error(s22.Get(0).Set(0x220)))
requireT.NoError(test.Error(s22.Get(1).Set(0x221)))
v0 = s20.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x200, v0.Value())
v1 = s20.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x201, v1.Value())
v0 = s21.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x210, v0.Value())
v1 = s21.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x211, v1.Value())
v0 = s22.Get(0)
requireT.True(v0.Exists())
requireT.Equal(0x220, v0.Value())
v1 = s22.Get(1)
requireT.True(v1.Exists())
requireT.Equal(0x221, v1.Value())
requireT.NoError(db.Commit())
}
func TestDoubledSpace(t *testing.T) {
requireT := require.New(t)
db, _ := newDB(requireT)
sA, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(sA.Get(1).Set(1)))
v := sA.Get(1)
requireT.True(v.Exists())
requireT.Equal(1, v.Value())
v = sA.Get(2)
requireT.False(v.Exists())
requireT.Equal(0, v.Value())
sB, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
v = sB.Get(1)
requireT.True(v.Exists())
requireT.Equal(1, v.Value())
requireT.NoError(test.Error(sB.Get(2).Set(2)))
v = sB.Get(2)
requireT.True(v.Exists())
requireT.Equal(2, v.Value())
v = sA.Get(2)
requireT.True(v.Exists())
requireT.Equal(2, v.Value())
requireT.NoError(test.Error(sA.Get(2).Set(12)))
v = sB.Get(2)
requireT.True(v.Exists())
requireT.Equal(12, v.Value())
}
func TestDeleteTheOnlySnapshot(t *testing.T) {
requireT := require.New(t)
db, allocator := newDB(requireT)
// Prepare snapshots
// Snapshot 0
s, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s.Get(0).Set(0)))
requireT.NoError(test.Error(s.Get(1).Set(1)))
requireT.NoError(test.Error(s.Get(2).Set(2)))
requireT.NoError(test.Error(s.Get(3).Set(3)))
requireT.NoError(test.Error(s.Get(4).Set(4)))
requireT.NoError(db.Commit())
snapshot0 := newSnapshot(requireT, 0x00, db)
requireT.Equal([]int{0, 1, 2, 3, 4}, test.CollectSpaceValues(s))
nodesUsed, _, _ := allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x01}, s.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x03}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.SnapshotID{0x00}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Empty(snapshot0.DeallocationLists.Nodes())
// Cause some deallocations.
s, err = GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s.Get(0).Set(10)))
// Delete snapshot 0
requireT.NoError(db.DeleteSnapshot(0x00))
requireT.Empty(test.CollectSpaceKeys(db.nextSnapshot.DeallocationLists))
requireT.NoError(db.Commit())
snapshot1 := newSnapshot(requireT, 0x01, db)
// Verify the current state.
requireT.Equal(types.SnapshotID(0x01), snapshot1.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot1.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x01), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x02), db.nextSnapshot.SingularityNode.LastSnapshotID)
s, err = GetSpace[int, int](space0, db)
requireT.NoError(err)
nodesUsed, nodesAllocated, nodesDeallocated := allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Empty(nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x03}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x01}, s.Nodes())
requireT.Empty(snapshot1.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot1.DeallocationLists))
requireT.Equal([]types.SnapshotID{0x01}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
// Cause some deallocations.
s, err = GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s.Get(0).Set(20)))
// Delete the only existing snapshot 1 to verify that procedure works with non-zero snapshot.
requireT.NoError(db.DeleteSnapshot(0x01))
requireT.NoError(db.Commit())
snapshot2 := newSnapshot(requireT, 0x02, db)
// Verify the current state.
requireT.Equal(types.SnapshotID(0x02), snapshot2.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot2.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x02), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x03), db.nextSnapshot.SingularityNode.LastSnapshotID)
s, err = GetSpace[int, int](space0, db)
requireT.NoError(err)
nodesUsed, nodesAllocated, nodesDeallocated = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x03}, nodesUsed)
requireT.Empty(nodesAllocated)
requireT.Empty(nodesDeallocated)
requireT.Equal([]types.NodeAddress{0x03}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x01}, s.Nodes())
requireT.Empty(snapshot2.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot2.DeallocationLists))
requireT.Equal([]types.SnapshotID{0x02}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
}
func TestDeleteFirstSnapshot(t *testing.T) {
// FIXME (wojciech): Skip test until deallocation s done separtely for on-disk nodes
t.Skip()
requireT := require.New(t)
db, allocator := newDB(requireT)
// Snapshot 0
s0, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s0.Get(0).Set(0)))
requireT.NoError(test.Error(s0.Get(1).Set(1)))
requireT.NoError(test.Error(s0.Get(2).Set(2)))
requireT.NoError(test.Error(s0.Get(3).Set(3)))
requireT.NoError(test.Error(s0.Get(4).Set(4)))
requireT.NoError(db.Commit())
// Snapshot 1
s1, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s1.Get(0).Set(10)))
requireT.NoError(db.Commit())
// Snapshot 2
s2, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s2.Get(0).Set(20)))
requireT.NoError(test.Error(s2.Get(1).Set(21)))
requireT.NoError(db.Commit())
// Check the initial state
snapshot0 := newSnapshot(requireT, 0x00, db)
snapshot1 := newSnapshot(requireT, 0x01, db)
snapshot2 := newSnapshot(requireT, 0x02, db)
requireT.Equal(types.SnapshotID(0x00), snapshot0.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x01), snapshot0.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x00), snapshot1.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot1.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x01), snapshot2.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot2.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x00), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x03), db.nextSnapshot.SingularityNode.LastSnapshotID)
s20 := newSpace[int, int](requireT, space0, snapshot2.Spaces, db)
requireT.Equal([]int{2, 3, 4, 20, 21}, test.CollectSpaceValues(s20))
nodesUsed, _, _ := allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x0d}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x09}, s20.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x06}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0d}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.SnapshotID{0x00, 0x01, 0x02}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Equal([]types.NodeAddress{0x07}, snapshot1.DeallocationLists.Nodes())
requireT.Equal([]types.NodeAddress{0x0c}, snapshot2.DeallocationLists.Nodes())
requireT.Equal([]types.SnapshotID{0x00}, test.CollectSpaceKeys(snapshot1.DeallocationLists))
requireT.Equal([]types.SnapshotID{0x01}, test.CollectSpaceKeys(snapshot2.DeallocationLists))
dList10AddressValue := snapshot1.DeallocationLists.Get(0x00)
requireT.True(dList10AddressValue.Exists())
dList21AddressValue := snapshot2.DeallocationLists.Get(0x01)
requireT.True(dList21AddressValue.Exists())
dList10 := newList(dList10AddressValue.Value(), db)
dList21 := newList(dList21AddressValue.Value(), db)
requireT.Equal([]types.NodeAddress{0x05}, dList10.Nodes())
requireT.Equal([]types.NodeAddress{0x0a}, dList21.Nodes())
requireT.Equal([]types.NodeAddress{0x01, 0x02}, test.CollectListItems(dList10))
requireT.Equal([]types.NodeAddress{0x04, 0x06}, test.CollectListItems(dList21))
// Delete snapshot 0
requireT.NoError(db.DeleteSnapshot(0x00))
requireT.NoError(db.Commit())
snapshot1 = newSnapshot(requireT, 0x01, db)
snapshot2 = newSnapshot(requireT, 0x02, db)
snapshot3 := newSnapshot(requireT, 0x03, db)
requireT.Equal(types.SnapshotID(0x01), snapshot1.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot1.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x01), snapshot2.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot2.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot3.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x04), snapshot3.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x01), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x04), db.nextSnapshot.SingularityNode.LastSnapshotID)
s30 := newSpace[int, int](requireT, space0, snapshot3.Spaces, db)
requireT.Equal([]int{2, 3, 4, 20, 21}, test.CollectSpaceValues(s30))
nodesUsed, _, _ = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x04, 0x06, 0x09, 0x0a, 0x0b, 0x0c, 0x0e, 0x0f}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x09}, s30.Nodes()) // Same as s20
requireT.Equal([]types.NodeAddress{0x06}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot3.Spaces.Nodes()) // Same as snapshot 2
requireT.Equal([]types.NodeAddress{0x0f}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.SnapshotID{0x01, 0x02, 0x03}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Equal([]types.NodeAddress{0x0e}, snapshot1.DeallocationLists.Nodes())
requireT.Equal([]types.NodeAddress{0x0c}, snapshot2.DeallocationLists.Nodes())
requireT.Empty(snapshot3.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot1.DeallocationLists))
requireT.Equal([]types.SnapshotID{0x01}, test.CollectSpaceKeys(snapshot2.DeallocationLists))
dList21AddressValue = snapshot2.DeallocationLists.Get(0x01)
requireT.True(dList21AddressValue.Exists())
dList21 = newList(dList21AddressValue.Value(), db)
requireT.Equal([]types.NodeAddress{0x0a}, dList21.Nodes())
requireT.Equal([]types.NodeAddress{0x04, 0x06}, test.CollectListItems(dList21))
// Delete snapshot 1
requireT.NoError(db.DeleteSnapshot(0x01))
requireT.NoError(db.Commit())
snapshot2 = newSnapshot(requireT, 0x02, db)
snapshot3 = newSnapshot(requireT, 0x03, db)
snapshot4 := newSnapshot(requireT, 0x04, db)
requireT.Equal(types.SnapshotID(0x02), snapshot2.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot2.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot3.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x04), snapshot3.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot4.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x05), snapshot4.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x02), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x05), db.nextSnapshot.SingularityNode.LastSnapshotID)
s40 := newSpace[int, int](requireT, space0, snapshot4.Spaces, db)
requireT.Equal([]int{2, 3, 4, 20, 21}, test.CollectSpaceValues(s40))
nodesUsed, _, _ = allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x09, 0x0b, 0x10, 0x11}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x09}, s40.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot3.Spaces.Nodes()) // Same as snapshot 2
requireT.Equal([]types.NodeAddress{0x0b}, snapshot4.Spaces.Nodes()) // Same as snapshot 2
requireT.Equal([]types.NodeAddress{0x11}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.SnapshotID{0x02, 0x03, 0x04}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Equal([]types.NodeAddress{0x10}, snapshot2.DeallocationLists.Nodes())
requireT.Empty(snapshot3.DeallocationLists.Nodes())
requireT.Empty(snapshot4.DeallocationLists.Nodes())
requireT.Empty(test.CollectSpaceKeys(snapshot2.DeallocationLists))
}
func TestDeleteLastSnapshot(t *testing.T) {
// FIXME (wojciech): Skip test until deallocation s done separtely for on-disk nodes
t.Skip()
requireT := require.New(t)
db, allocator := newDB(requireT)
// Snapshot 0
s0, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s0.Get(0).Set(0)))
requireT.NoError(test.Error(s0.Get(1).Set(1)))
requireT.NoError(test.Error(s0.Get(2).Set(2)))
requireT.NoError(test.Error(s0.Get(3).Set(3)))
requireT.NoError(test.Error(s0.Get(4).Set(4)))
requireT.NoError(db.Commit())
// Snapshot 1
s1, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s1.Get(0).Set(10)))
requireT.NoError(db.Commit())
// Snapshot 2
s2, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s2.Get(0).Set(20)))
requireT.NoError(test.Error(s2.Get(1).Set(21)))
requireT.NoError(db.Commit())
// Check the initial state
snapshot0 := newSnapshot(requireT, 0x00, db)
snapshot1 := newSnapshot(requireT, 0x01, db)
snapshot2 := newSnapshot(requireT, 0x02, db)
requireT.Equal(types.SnapshotID(0x00), snapshot0.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x01), snapshot0.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x00), snapshot1.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x02), snapshot1.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x01), snapshot2.SnapshotInfo.PreviousSnapshotID)
requireT.Equal(types.SnapshotID(0x03), snapshot2.SnapshotInfo.NextSnapshotID)
requireT.Equal(types.SnapshotID(0x00), db.nextSnapshot.SingularityNode.FirstSnapshotID)
requireT.Equal(types.SnapshotID(0x03), db.nextSnapshot.SingularityNode.LastSnapshotID)
s20 := newSpace[int, int](requireT, space0, snapshot2.Spaces, db)
requireT.Equal([]int{2, 3, 4, 20, 21}, test.CollectSpaceValues(s20))
nodesUsed, _, _ := allocator.Nodes()
requireT.Equal([]types.NodeAddress{0x01, 0x02, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x0d}, nodesUsed)
requireT.Equal([]types.NodeAddress{0x09}, s20.Nodes())
requireT.Equal([]types.NodeAddress{0x02}, snapshot0.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x06}, snapshot1.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0b}, snapshot2.Spaces.Nodes())
requireT.Equal([]types.NodeAddress{0x0d}, db.nextSnapshot.Snapshots.Nodes())
requireT.Equal([]types.SnapshotID{0x00, 0x01, 0x02}, test.CollectSpaceKeys(db.nextSnapshot.Snapshots))
requireT.Empty(snapshot0.DeallocationLists.Nodes())
requireT.Equal([]types.NodeAddress{0x07}, snapshot1.DeallocationLists.Nodes())
requireT.Equal([]types.NodeAddress{0x0c}, snapshot2.DeallocationLists.Nodes())
requireT.Equal([]types.SnapshotID{0x00}, test.CollectSpaceKeys(snapshot1.DeallocationLists))
requireT.Equal([]types.SnapshotID{0x01}, test.CollectSpaceKeys(snapshot2.DeallocationLists))
dList21AddressValue := snapshot2.DeallocationLists.Get(0x01)
requireT.True(dList21AddressValue.Exists())
dList21 := newList(dList21AddressValue.Value(), db)
requireT.Equal([]types.NodeAddress{0x0a}, dList21.Nodes())
requireT.Equal([]types.NodeAddress{0x04, 0x06}, test.CollectListItems(dList21))
// Override data set in snapshot 2
s3, err := GetSpace[int, int](space0, db)
requireT.NoError(err)
requireT.NoError(test.Error(s3.Get(0).Set(30)))