75 lines
4.2 KiB
Go
75 lines
4.2 KiB
Go
// Copyright 2017 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 aggregation
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import (
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"encoding/json"
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"fmt"
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"testing"
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"github.com/pingcap/tidb/expression"
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"github.com/pingcap/tidb/parser/ast"
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"github.com/pingcap/tidb/parser/mysql"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/mock"
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"github.com/stretchr/testify/require"
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)
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func genColumn(tp byte, id int64) *expression.Column {
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return &expression.Column{
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RetType: types.NewFieldType(tp),
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ID: id,
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Index: int(id),
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}
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}
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func TestAggFunc2Pb(t *testing.T) {
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ctx := mock.NewContext()
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client := new(mock.Client)
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funcNames := []string{ast.AggFuncSum, ast.AggFuncCount, ast.AggFuncAvg, ast.AggFuncGroupConcat, ast.AggFuncMax, ast.AggFuncMin, ast.AggFuncFirstRow}
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funcTypes := []*types.FieldType{
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types.NewFieldType(mysql.TypeDouble),
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types.NewFieldType(mysql.TypeLonglong),
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types.NewFieldType(mysql.TypeDouble),
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types.NewFieldType(mysql.TypeVarchar),
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types.NewFieldType(mysql.TypeDouble),
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types.NewFieldType(mysql.TypeDouble),
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types.NewFieldType(mysql.TypeDouble),
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}
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jsons := []string{
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`{"tp":3002,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3001,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":8,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3003,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3007,"val":"AAAAAAAABAA=","children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":15,"flag":0,"flen":-1,"decimal":-1,"collate":-46,"charset":"utf8mb4"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3005,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3004,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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`{"tp":3006,"children":[{"tp":201,"val":"gAAAAAAAAAE=","sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":false}],"sig":0,"field_type":{"tp":5,"flag":0,"flen":-1,"decimal":-1,"collate":-63,"charset":"binary"},"has_distinct":%v,"aggFuncMode":0}`,
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}
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for i, funcName := range funcNames {
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for _, hasDistinct := range []bool{true, false} {
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args := []expression.Expression{genColumn(mysql.TypeDouble, 1)}
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aggFunc, err := NewAggFuncDesc(ctx, funcName, args, hasDistinct)
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require.NoError(t, err)
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aggFunc.RetTp = funcTypes[i]
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pbExpr := AggFuncToPBExpr(ctx, client, aggFunc)
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js, err := json.Marshal(pbExpr)
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require.NoError(t, err)
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require.Equal(t, fmt.Sprintf(jsons[i], hasDistinct), string(js))
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}
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}
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}
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