117 lines
3.6 KiB
Go
117 lines
3.6 KiB
Go
// Copyright 2023 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package local
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import (
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"context"
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"io"
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"os"
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"path"
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"sync"
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"testing"
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"github.com/google/uuid"
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"github.com/pingcap/tidb/br/pkg/mock/mocklocal"
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"github.com/pingcap/tidb/pkg/lightning/backend"
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"github.com/pingcap/tidb/pkg/lightning/common"
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"github.com/pingcap/tidb/pkg/lightning/config"
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"github.com/pingcap/tidb/pkg/lightning/log"
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"github.com/stretchr/testify/require"
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"go.uber.org/mock/gomock"
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)
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func getBackendConfig(t *testing.T) BackendConfig {
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return BackendConfig{
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MemTableSize: config.DefaultEngineMemCacheSize,
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MaxOpenFiles: 1000,
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DisableAutomaticCompactions: true,
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LocalStoreDir: path.Join(t.TempDir(), "sorted-kv"),
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DupeDetectEnabled: false,
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DuplicateDetectOpt: common.DupDetectOpt{},
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WorkerConcurrency: 8,
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LocalWriterMemCacheSize: config.DefaultLocalWriterMemCacheSize,
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CheckpointEnabled: false,
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}
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}
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func TestEngineManager(t *testing.T) {
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ctrl := gomock.NewController(t)
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defer ctrl.Finish()
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storeHelper := mocklocal.NewMockStoreHelper(ctrl)
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ctx := context.Background()
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syncMapLen := func(m *sync.Map) int {
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count := 0
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m.Range(func(key, value any) bool {
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count++
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return true
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})
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return count
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}
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isEmptyDir := func(name string) bool {
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f, err := os.Open(name)
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require.NoError(t, err)
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defer f.Close()
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_, err = f.Readdirnames(1) // Or f.Readdir(1)
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if err == io.EOF {
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return true
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}
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require.Fail(t, err.Error())
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return false
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}
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backendConfig := getBackendConfig(t)
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em, err := newEngineManager(backendConfig, storeHelper, log.L())
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require.NoError(t, err)
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storeHelper.EXPECT().GetTS(gomock.Any()).Return(int64(0), int64(0), nil)
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engine1ID := uuid.New()
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require.NoError(t, em.openEngine(ctx, &backend.EngineConfig{}, engine1ID))
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require.Equal(t, 1, syncMapLen(&em.engines))
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_, ok := em.engines.Load(engine1ID)
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require.True(t, ok)
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require.True(t, ctrl.Satisfied())
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require.Len(t, em.engineFileSizes(), 1)
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require.NoError(t, em.closeEngine(ctx, &backend.EngineConfig{}, engine1ID))
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require.Equal(t, 0, int(em.getImportedKVCount(engine1ID)))
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// close non-existent engine
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require.ErrorContains(t, em.closeEngine(ctx, &backend.EngineConfig{}, uuid.New()), "does not exist")
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// reset non-existent engine should work
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require.NoError(t, em.resetEngine(ctx, uuid.New(), false))
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storeHelper.EXPECT().GetTS(gomock.Any()).Return(int64(0), int64(0), nil)
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require.NoError(t, em.resetEngine(ctx, engine1ID, false))
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require.Equal(t, 1, syncMapLen(&em.engines))
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_, ok = em.engines.Load(engine1ID)
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require.True(t, ok)
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require.True(t, ctrl.Satisfied())
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require.NoError(t, em.cleanupEngine(ctx, uuid.New()))
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require.NoError(t, em.cleanupEngine(ctx, engine1ID))
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require.Equal(t, 0, syncMapLen(&em.engines))
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require.True(t, isEmptyDir(backendConfig.LocalStoreDir))
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em.close()
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}
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func TestGetExternalEngineKVStatistics(t *testing.T) {
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em := &engineManager{
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externalEngine: map[uuid.UUID]common.Engine{},
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}
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// non existent uuid
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size, count := em.getExternalEngineKVStatistics(uuid.New())
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require.Zero(t, size)
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require.Zero(t, count)
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}
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