95 lines
3.1 KiB
Go
95 lines
3.1 KiB
Go
// Copyright 2024 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 infoschema
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import (
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"fmt"
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"testing"
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"github.com/pingcap/tidb/pkg/meta/autoid"
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"github.com/pingcap/tidb/pkg/meta/model"
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"github.com/stretchr/testify/require"
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)
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type mockAlloc struct {
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autoid.Allocator
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tp autoid.AllocatorType
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}
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func (m *mockAlloc) GetType() autoid.AllocatorType {
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return m.tp
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}
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func TestGetKeptAllocators(t *testing.T) {
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checkAllocators := func(allocators autoid.Allocators, expected []autoid.AllocatorType) {
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require.Len(t, allocators.Allocs, len(expected))
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for i, tp := range expected {
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require.Equal(t, tp, allocators.Allocs[i].GetType())
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}
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}
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allocators := autoid.Allocators{Allocs: []autoid.Allocator{
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&mockAlloc{tp: autoid.RowIDAllocType},
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&mockAlloc{tp: autoid.AutoIncrementType},
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&mockAlloc{tp: autoid.AutoRandomType},
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}}
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cases := []struct {
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diff *model.SchemaDiff
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expected []autoid.AllocatorType
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}{
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{
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diff: &model.SchemaDiff{Type: model.ActionTruncateTable},
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expected: []autoid.AllocatorType{autoid.RowIDAllocType, autoid.AutoIncrementType, autoid.AutoRandomType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionRebaseAutoID},
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expected: []autoid.AllocatorType{autoid.AutoRandomType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionModifyTableAutoIDCache},
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expected: []autoid.AllocatorType{autoid.AutoRandomType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionRebaseAutoRandomBase},
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expected: []autoid.AllocatorType{autoid.RowIDAllocType, autoid.AutoIncrementType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionMultiSchemaChange,
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SubActionTypes: []model.ActionType{model.ActionAddColumn, model.ActionRebaseAutoID}},
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expected: []autoid.AllocatorType{autoid.AutoRandomType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionMultiSchemaChange,
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SubActionTypes: []model.ActionType{model.ActionModifyTableAutoIDCache}},
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expected: []autoid.AllocatorType{autoid.AutoRandomType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionMultiSchemaChange,
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SubActionTypes: []model.ActionType{model.ActionRebaseAutoRandomBase}},
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expected: []autoid.AllocatorType{autoid.RowIDAllocType, autoid.AutoIncrementType},
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},
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{
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diff: &model.SchemaDiff{Type: model.ActionMultiSchemaChange,
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SubActionTypes: []model.ActionType{model.ActionAddColumn}},
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expected: []autoid.AllocatorType{autoid.RowIDAllocType, autoid.AutoIncrementType, autoid.AutoRandomType},
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},
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}
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for i, c := range cases {
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t.Run(fmt.Sprintf("case %d", i), func(t *testing.T) {
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res := getKeptAllocators(c.diff, allocators)
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checkAllocators(res, c.expected)
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})
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}
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}
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