Files
tidb/pkg/statistics/handle/cache/statscache_test.go

72 lines
2.6 KiB
Go

// Copyright 2023 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 cache
import (
"testing"
"github.com/pingcap/tidb/pkg/statistics"
"github.com/stretchr/testify/require"
)
func TestCacheOfBatchUpdate(t *testing.T) {
markedAsUpdated := make([]int64, 0)
markedAsDeleted := make([]int64, 0)
testBatchSize := 3
cached := newCacheOfBatchUpdate(testBatchSize, func(toUpdate []*statistics.Table, toDelete []int64) {
for _, table := range toUpdate {
markedAsUpdated = append(markedAsUpdated, table.PhysicalID)
}
markedAsDeleted = append(markedAsDeleted, toDelete...)
})
cached.addToUpdate(&statistics.Table{HistColl: statistics.HistColl{PhysicalID: 1}})
cached.addToUpdate(&statistics.Table{HistColl: statistics.HistColl{PhysicalID: 2}})
cached.addToUpdate(&statistics.Table{HistColl: statistics.HistColl{PhysicalID: 3}})
require.Len(t, markedAsUpdated, 0)
require.Len(t, cached.toUpdate, 3)
cached.addToUpdate(&statistics.Table{HistColl: statistics.HistColl{PhysicalID: 4}})
require.Len(t, markedAsUpdated, 3)
require.Equal(t, int64(1), markedAsUpdated[0])
require.Equal(t, int64(2), markedAsUpdated[1])
require.Equal(t, int64(3), markedAsUpdated[2])
require.Len(t, cached.toUpdate, 1)
require.Equal(t, int64(4), cached.toUpdate[0].PhysicalID)
cached.addToDelete(5)
cached.addToDelete(6)
cached.addToDelete(7)
require.Len(t, markedAsDeleted, 0)
require.Len(t, cached.toDelete, 3)
cached.addToUpdate(&statistics.Table{HistColl: statistics.HistColl{PhysicalID: 8}})
require.Len(t, cached.toUpdate, 2)
cached.addToDelete(9)
require.Len(t, markedAsDeleted, 3)
require.Equal(t, int64(5), markedAsDeleted[0])
require.Equal(t, int64(6), markedAsDeleted[1])
require.Equal(t, int64(7), markedAsDeleted[2])
require.Len(t, cached.toDelete, 1)
require.Equal(t, int64(9), cached.toDelete[0])
require.Len(t, markedAsUpdated, 5)
require.Equal(t, int64(4), markedAsUpdated[3])
require.Equal(t, int64(8), markedAsUpdated[4])
cached.flush()
require.Len(t, cached.toUpdate, 0)
require.Len(t, cached.toDelete, 0)
require.Len(t, markedAsDeleted, 4)
require.Equal(t, int64(9), markedAsDeleted[3])
}