64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
// Copyright 2022 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 util_test
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import (
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"testing"
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"github.com/pingcap/tidb/config"
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"github.com/pingcap/tidb/util"
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"github.com/stretchr/testify/assert"
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)
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func TestGlobalConnID(t *testing.T) {
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originCfg := config.GetGlobalConfig()
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newCfg := *originCfg
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newCfg.EnableGlobalKill = true
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config.StoreGlobalConfig(&newCfg)
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defer func() {
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config.StoreGlobalConfig(originCfg)
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}()
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connID := util.GlobalConnID{
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Is64bits: true,
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ServerID: 1001,
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LocalConnID: 123,
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}
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assert.Equal(t, (uint64(1001)<<41)|(uint64(123)<<1)|1, connID.ID())
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next := connID.NextID()
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assert.Equal(t, (uint64(1001)<<41)|(uint64(124)<<1)|1, next)
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connID1, isTruncated, err := util.ParseGlobalConnID(next)
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assert.Nil(t, err)
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assert.False(t, isTruncated)
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assert.Equal(t, uint64(1001), connID1.ServerID)
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assert.Equal(t, uint64(124), connID1.LocalConnID)
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assert.True(t, connID1.Is64bits)
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_, isTruncated, err = util.ParseGlobalConnID(101)
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assert.Nil(t, err)
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assert.True(t, isTruncated)
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_, _, err = util.ParseGlobalConnID(0x80000000_00000321)
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assert.NotNil(t, err)
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connID2 := util.GlobalConnID{
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Is64bits: true,
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ServerIDGetter: func() uint64 { return 2002 },
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LocalConnID: 123,
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}
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assert.Equal(t, (uint64(2002)<<41)|(uint64(123)<<1)|1, connID2.ID())
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}
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