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// Copyright 2019 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package decoder_test
import (
"testing"
"time"
. "github.com/pingcap/check"
"github.com/pingcap/parser/model"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/tidb/expression"
_ "github.com/pingcap/tidb/planner/core"
"github.com/pingcap/tidb/sessionctx/stmtctx"
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/tablecodec"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/mock"
"github.com/pingcap/tidb/util/rowDecoder"
"github.com/pingcap/tidb/util/rowcodec"
"github.com/pingcap/tidb/util/testleak"
)
func TestT(t *testing.T) {
TestingT(t)
}
var _ = Suite(&testDecoderSuite{})
type testDecoderSuite struct{}
func (s *testDecoderSuite) TestRowDecoder(c *C) {
defer testleak.AfterTest(c)()
c1 := &model.ColumnInfo{ID: 1, Name: model.NewCIStr("c1"), State: model.StatePublic, Offset: 0, FieldType: *types.NewFieldType(mysql.TypeLonglong)}
c2 := &model.ColumnInfo{ID: 2, Name: model.NewCIStr("c2"), State: model.StatePublic, Offset: 1, FieldType: *types.NewFieldType(mysql.TypeVarchar)}
c3 := &model.ColumnInfo{ID: 3, Name: model.NewCIStr("c3"), State: model.StatePublic, Offset: 2, FieldType: *types.NewFieldType(mysql.TypeNewDecimal)}
c4 := &model.ColumnInfo{ID: 4, Name: model.NewCIStr("c4"), State: model.StatePublic, Offset: 3, FieldType: *types.NewFieldType(mysql.TypeTimestamp)}
c5 := &model.ColumnInfo{ID: 5, Name: model.NewCIStr("c5"), State: model.StatePublic, Offset: 4, FieldType: *types.NewFieldType(mysql.TypeDuration), OriginDefaultValue: "02:00:02"}
dependenciesMap := make(map[string]struct{})
dependenciesMap["c4"] = struct{}{}
dependenciesMap["c5"] = struct{}{}
c6 := &model.ColumnInfo{ID: 6, Name: model.NewCIStr("c6"), State: model.StatePublic, Offset: 5, FieldType: *types.NewFieldType(mysql.TypeTimestamp), GeneratedExprString: "c4+c5"}
c7 := &model.ColumnInfo{ID: 7, Name: model.NewCIStr("c7"), State: model.StatePublic, Offset: 6, FieldType: *types.NewFieldType(mysql.TypeLonglong)}
c7.Flag |= mysql.PriKeyFlag
cols := []*model.ColumnInfo{c1, c2, c3, c4, c5, c6, c7}
tblInfo := &model.TableInfo{ID: 1, Columns: cols, PKIsHandle: true}
tbl := tables.MockTableFromMeta(tblInfo)
ctx := mock.NewContext()
sc := &stmtctx.StatementContext{TimeZone: time.UTC}
decodeColsMap := make(map[int64]decoder.Column, len(cols))
decodeColsMap2 := make(map[int64]decoder.Column, len(cols))
for _, col := range tbl.Cols() {
tpExpr := decoder.Column{
Col: col,
}
decodeColsMap2[col.ID] = tpExpr
if col.GeneratedExprString != "" {
expr, err := expression.ParseSimpleExprCastWithTableInfo(ctx, col.GeneratedExprString, tblInfo, &col.FieldType)
c.Assert(err, IsNil)
tpExpr.GenExpr = expr
}
decodeColsMap[col.ID] = tpExpr
}
de := decoder.NewRowDecoder(tbl, decodeColsMap)
deWithNoGenCols := decoder.NewRowDecoder(tbl, decodeColsMap2)
timeZoneIn8, err := time.LoadLocation("Asia/Shanghai")
c.Assert(err, IsNil)
time1 := types.NewTime(types.FromDate(2019, 01, 01, 8, 01, 01, 0), mysql.TypeTimestamp, types.DefaultFsp)
t1 := types.NewTimeDatum(time1)
d1 := types.NewDurationDatum(types.Duration{
Duration: time.Hour + time.Second,
})
time2, err := time1.Add(sc, d1.GetMysqlDuration())
c.Assert(err, IsNil)
err = time2.ConvertTimeZone(timeZoneIn8, time.UTC)
c.Assert(err, IsNil)
t2 := types.NewTimeDatum(time2)
time3, err := time1.Add(sc, types.Duration{Duration: time.Hour*2 + time.Second*2})
c.Assert(err, IsNil)
err = time3.ConvertTimeZone(timeZoneIn8, time.UTC)
c.Assert(err, IsNil)
t3 := types.NewTimeDatum(time3)
testRows := []struct {
cols []int64
input []types.Datum
output []types.Datum
}{
{
[]int64{cols[0].ID, cols[1].ID, cols[2].ID, cols[3].ID, cols[4].ID},
[]types.Datum{types.NewIntDatum(100), types.NewBytesDatum([]byte("abc")), types.NewDecimalDatum(types.NewDecFromInt(1)), t1, d1},
[]types.Datum{types.NewIntDatum(100), types.NewBytesDatum([]byte("abc")), types.NewDecimalDatum(types.NewDecFromInt(1)), t1, d1, t2},
},
{
[]int64{cols[0].ID, cols[1].ID, cols[2].ID, cols[3].ID},
[]types.Datum{types.NewIntDatum(100), types.NewBytesDatum([]byte("abc")), types.NewDecimalDatum(types.NewDecFromInt(1)), t1},
[]types.Datum{types.NewIntDatum(100), types.NewBytesDatum([]byte("abc")), types.NewDecimalDatum(types.NewDecFromInt(1)), t1, types.NewDatum(nil), t3},
},
{
[]int64{cols[0].ID, cols[1].ID, cols[2].ID, cols[3].ID, cols[4].ID},
[]types.Datum{types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil)},
[]types.Datum{types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil), types.NewDatum(nil)},
},
}
rd := rowcodec.Encoder{Enable: true}
for i, row := range testRows {
// test case for pk is unsigned.
if i > 0 {
c7.Flag |= mysql.UnsignedFlag
}
bs, err := tablecodec.EncodeRow(sc, row.input, row.cols, nil, nil, &rd)
c.Assert(err, IsNil)
c.Assert(bs, NotNil)
r, err := de.DecodeAndEvalRowWithMap(ctx, int64(i), bs, time.UTC, timeZoneIn8, nil)
c.Assert(err, IsNil)
// Last column is primary-key column, and the table primary-key is handle, then the primary-key value won't be
// stored in raw data, but store in the raw key.
// So when decode, we can't get the primary-key value from raw data, then ignore check the value of the
// last primary key column.
for i, col := range cols[:len(cols)-1] {
v, ok := r[col.ID]
if ok {
equal, err1 := v.CompareDatum(sc, &row.output[i])
c.Assert(err1, IsNil)
c.Assert(equal, Equals, 0)
} else {
// use default value.
c.Assert(col.DefaultValue != "", IsTrue)
}
}
// test decode with no generated column.
r2, err := deWithNoGenCols.DecodeAndEvalRowWithMap(ctx, int64(i), bs, time.UTC, timeZoneIn8, nil)
c.Assert(err, IsNil)
for k, v := range r2 {
v1, ok := r[k]
c.Assert(ok, IsTrue)
equal, err1 := v.CompareDatum(sc, &v1)
c.Assert(err1, IsNil)
c.Assert(equal, Equals, 0)
}
}
}