120 lines
3.9 KiB
Go
120 lines
3.9 KiB
Go
// Copyright 2025 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package statistics
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestCloneColAndIdxExistenceMap(t *testing.T) {
|
|
m := NewColAndIndexExistenceMapWithoutSize()
|
|
m.InsertCol(1, true)
|
|
m.InsertIndex(1, true)
|
|
|
|
m2 := m.Clone()
|
|
require.Equal(t, m, m2)
|
|
}
|
|
|
|
type ShareMode uint8
|
|
|
|
const (
|
|
Shared ShareMode = iota
|
|
Cloned
|
|
)
|
|
|
|
func TestCopyAs(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
intent CopyIntent
|
|
expectCols ShareMode
|
|
expectIdxs ShareMode
|
|
expectExist ShareMode
|
|
expectExtended ShareMode
|
|
}{
|
|
{"MetaOnly", MetaOnly, Shared, Shared, Shared, Shared},
|
|
{"ColumnMapWritable", ColumnMapWritable, Cloned, Shared, Cloned, Shared},
|
|
{"IndexMapWritable", IndexMapWritable, Shared, Cloned, Cloned, Shared},
|
|
{"BothMapsWritable", BothMapsWritable, Cloned, Cloned, Cloned, Shared},
|
|
{"ExtendedStatsWritable", ExtendedStatsWritable, Shared, Shared, Shared, Cloned},
|
|
{"AllDataWritable", AllDataWritable, Cloned, Cloned, Cloned, Cloned},
|
|
}
|
|
|
|
for _, tt := range tests {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
// Create original table with ExtendedStats for testing
|
|
originalStats := &ExtendedStatsColl{
|
|
Stats: make(map[string]*ExtendedStatsItem),
|
|
LastUpdateVersion: 1,
|
|
}
|
|
originalStats.Stats["test"] = &ExtendedStatsItem{StringVals: "original"}
|
|
|
|
table := &Table{
|
|
HistColl: *NewHistColl(1, 1, 1, 1, 1),
|
|
ColAndIdxExistenceMap: NewColAndIndexExistenceMap(1, 1),
|
|
ExtendedStats: originalStats,
|
|
}
|
|
|
|
copied := table.CopyAs(tt.intent)
|
|
|
|
// Test columns map sharing/cloning
|
|
copied.SetCol(1, &Column{PhysicalID: 123})
|
|
if tt.expectCols == Shared {
|
|
require.NotNil(t, table.GetCol(1), "shared columns: addition to copy should appear in original")
|
|
} else {
|
|
require.Nil(t, table.GetCol(1), "cloned columns: addition to copy should not appear in original")
|
|
}
|
|
|
|
// Test indices map sharing/cloning
|
|
copied.SetIdx(1, &Index{PhysicalID: 123})
|
|
if tt.expectIdxs == Shared {
|
|
require.NotNil(t, table.GetIdx(1), "shared indices: addition to copy should appear in original")
|
|
} else {
|
|
require.Nil(t, table.GetIdx(1), "cloned indices: addition to copy should not appear in original")
|
|
}
|
|
|
|
// Test existence map sharing/cloning
|
|
if tt.expectExist == Shared {
|
|
require.Same(t, table.ColAndIdxExistenceMap, copied.ColAndIdxExistenceMap)
|
|
} else {
|
|
require.NotSame(t, table.ColAndIdxExistenceMap, copied.ColAndIdxExistenceMap)
|
|
}
|
|
|
|
// Test ExtendedStats handling
|
|
if tt.expectExtended == Cloned {
|
|
// Should be able to modify ExtendedStats without affecting original
|
|
newStats := &ExtendedStatsColl{
|
|
Stats: make(map[string]*ExtendedStatsItem),
|
|
LastUpdateVersion: 2,
|
|
}
|
|
newStats.Stats["test"] = &ExtendedStatsItem{StringVals: "modified"}
|
|
copied.ExtendedStats = newStats
|
|
|
|
// Verify original is unchanged
|
|
require.Equal(t, uint64(1), table.ExtendedStats.LastUpdateVersion)
|
|
require.Equal(t, "original", table.ExtendedStats.Stats["test"].StringVals)
|
|
|
|
// Verify copy was modified
|
|
require.Equal(t, uint64(2), copied.ExtendedStats.LastUpdateVersion)
|
|
require.Equal(t, "modified", copied.ExtendedStats.Stats["test"].StringVals)
|
|
} else {
|
|
// For shared ExtendedStats
|
|
require.Same(t, table.ExtendedStats, copied.ExtendedStats)
|
|
}
|
|
})
|
|
}
|
|
}
|