65 lines
2.2 KiB
Go
65 lines
2.2 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 storage
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import (
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"testing"
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"github.com/pingcap/tidb/pkg/config"
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"github.com/pingcap/tidb/pkg/disttask/framework/proto"
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"github.com/pingcap/tidb/pkg/kv"
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"github.com/pingcap/tidb/pkg/testkit/testsetup"
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"github.com/stretchr/testify/require"
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"go.uber.org/goleak"
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)
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func TestMain(m *testing.M) {
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testsetup.SetupForCommonTest()
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opts := []goleak.Option{
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goleak.IgnoreTopFunction("github.com/golang/glog.(*fileSink).flushDaemon"),
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goleak.IgnoreTopFunction("github.com/bazelbuild/rules_go/go/tools/bzltestutil.RegisterTimeoutHandler.func1"),
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goleak.IgnoreTopFunction("github.com/lestrrat-go/httprc.runFetchWorker"),
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goleak.IgnoreTopFunction("go.etcd.io/etcd/client/pkg/v3/logutil.(*MergeLogger).outputLoop"),
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goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"),
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}
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goleak.VerifyTestMain(m, opts...)
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}
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func TestSplitSubtasks(t *testing.T) {
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tm := &TaskManager{}
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subtasks := make([]*proto.Subtask, 0, 10)
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metaBytes := make([]byte, 100)
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for i := 0; i < 10; i++ {
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subtasks = append(subtasks, &proto.Subtask{SubtaskBase: proto.SubtaskBase{ID: int64(i)}, Meta: metaBytes})
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}
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bak := kv.TxnTotalSizeLimit.Load()
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t.Cleanup(func() {
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kv.TxnTotalSizeLimit.Store(bak)
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})
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kv.TxnTotalSizeLimit.Store(config.SuperLargeTxnSize)
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splitSubtasks := tm.splitSubtasks(subtasks)
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require.Len(t, splitSubtasks, 1)
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require.Equal(t, subtasks, splitSubtasks[0])
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maxSubtaskBatchSize = 300
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splitSubtasks = tm.splitSubtasks(subtasks)
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require.Len(t, splitSubtasks, 4)
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require.Equal(t, subtasks[:3], splitSubtasks[0])
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require.Equal(t, subtasks[3:6], splitSubtasks[1])
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require.Equal(t, subtasks[6:9], splitSubtasks[2])
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require.Equal(t, subtasks[9:], splitSubtasks[3])
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}
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