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convert_test.go
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// Copyright 2015 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"fmt"
"math"
"strconv"
"testing"
"time"
"github.com/pingcap/errors"
"github.com/pingcap/tidb/parser/charset"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/pingcap/tidb/sessionctx/stmtctx"
"github.com/stretchr/testify/require"
)
type invalidMockType struct {
}
// Convert converts the val with type tp.
func Convert(val interface{}, target *FieldType) (v interface{}, err error) {
d := NewDatum(val)
sc := new(stmtctx.StatementContext)
sc.TimeZone = time.UTC
ret, err := d.ConvertTo(sc, target)
if err != nil {
return ret.GetValue(), errors.Trace(err)
}
return ret.GetValue(), nil
}
func TestConvertType(t *testing.T) {
ft := NewFieldType(mysql.TypeBlob)
ft.SetFlen(4)
ft.SetCharset("utf8")
v, err := Convert("123456", ft)
require.True(t, ErrDataTooLong.Equal(err))
require.Equal(t, "1234", v)
ft = NewFieldType(mysql.TypeString)
ft.SetFlen(4)
ft.SetCharset(charset.CharsetBin)
v, err = Convert("12345", ft)
require.True(t, ErrDataTooLong.Equal(err))
require.Equal(t, []byte("1234"), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(111.114, ft)
require.NoError(t, err)
require.Equal(t, float32(111.11), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(999.999, ft)
require.Error(t, err)
require.Equal(t, float32(999.99), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(-999.999, ft)
require.Error(t, err)
require.Equal(t, float32(-999.99), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(1111.11, ft)
require.Error(t, err)
require.Equal(t, float32(999.99), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(999.916, ft)
require.NoError(t, err)
require.Equal(t, float32(999.92), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(999.914, ft)
require.NoError(t, err)
require.Equal(t, float32(999.91), v)
ft = NewFieldType(mysql.TypeFloat)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(999.9155, ft)
require.NoError(t, err)
require.Equal(t, float32(999.92), v)
// For TypeBlob
ft = NewFieldType(mysql.TypeBlob)
_, err = Convert(&invalidMockType{}, ft)
require.Error(t, err)
// Nil
ft = NewFieldType(mysql.TypeBlob)
v, err = Convert(nil, ft)
require.NoError(t, err)
require.Nil(t, v)
// TypeDouble
ft = NewFieldType(mysql.TypeDouble)
ft.SetFlen(5)
ft.SetDecimal(2)
v, err = Convert(999.9155, ft)
require.NoError(t, err)
require.Equal(t, float64(999.92), v)
// For TypeString
ft = NewFieldType(mysql.TypeString)
ft.SetFlen(3)
v, err = Convert("12345", ft)
require.True(t, ErrDataTooLong.Equal(err))
require.Equal(t, "123", v)
ft = NewFieldType(mysql.TypeString)
ft.SetFlen(3)
ft.SetCharset(charset.CharsetBin)
v, err = Convert("12345", ft)
require.True(t, ErrDataTooLong.Equal(err))
require.Equal(t, []byte("123"), v)
// For TypeDuration
ft = NewFieldType(mysql.TypeDuration)
ft.SetDecimal(3)
v, err = Convert("10:11:12.123456", ft)
require.NoError(t, err)
require.Equal(t, "10:11:12.123", v.(Duration).String())
ft.SetDecimal(1)
vv, err := Convert(v, ft)
require.NoError(t, err)
require.Equal(t, "10:11:12.1", vv.(Duration).String())
sc := &stmtctx.StatementContext{TimeZone: time.UTC}
vd, err := ParseTime(sc, "2010-10-10 10:11:11.12345", mysql.TypeDatetime, 2)
require.Equal(t, "2010-10-10 10:11:11.12", vd.String())
require.NoError(t, err)
v, err = Convert(vd, ft)
require.NoError(t, err)
require.Equal(t, "10:11:11.1", v.(Duration).String())
vt, err := ParseTime(sc, "2010-10-10 10:11:11.12345", mysql.TypeTimestamp, 2)
require.Equal(t, "2010-10-10 10:11:11.12", vt.String())
require.NoError(t, err)
v, err = Convert(vt, ft)
require.NoError(t, err)
require.Equal(t, "10:11:11.1", v.(Duration).String())
// For mysql.TypeTimestamp, mysql.TypeDatetime, mysql.TypeDate
ft = NewFieldType(mysql.TypeTimestamp)
ft.SetDecimal(3)
v, err = Convert("2010-10-10 10:11:11.12345", ft)
require.NoError(t, err)
require.Equal(t, "2010-10-10 10:11:11.123", v.(Time).String())
ft.SetDecimal(1)
vv, err = Convert(v, ft)
require.NoError(t, err)
require.Equal(t, "2010-10-10 10:11:11.1", vv.(Time).String())
// For TypeLonglong
ft = NewFieldType(mysql.TypeLonglong)
v, err = Convert("100", ft)
require.NoError(t, err)
require.Equal(t, int64(100), v)
// issue 4287.
v, err = Convert(math.Pow(2, 63)-1, ft)
require.NoError(t, err)
require.Equal(t, int64(math.MaxInt64), v)
ft = NewFieldType(mysql.TypeLonglong)
ft.AddFlag(mysql.UnsignedFlag)
v, err = Convert("100", ft)
require.NoError(t, err)
require.Equal(t, uint64(100), v)
// issue 3470
ft = NewFieldType(mysql.TypeLonglong)
v, err = Convert(Duration{Duration: 12*time.Hour + 59*time.Minute + 59*time.Second + 555*time.Millisecond, Fsp: 3}, ft)
require.NoError(t, err)
require.Equal(t, int64(130000), v)
v, err = Convert(NewTime(FromDate(2017, 1, 1, 12, 59, 59, 555000), mysql.TypeDatetime, MaxFsp), ft)
require.NoError(t, err)
require.Equal(t, int64(20170101130000), v)
// For TypeBit
ft = NewFieldType(mysql.TypeBit)
ft.SetFlen(24) // 3 bytes.
v, err = Convert("100", ft)
require.NoError(t, err)
require.Equal(t, NewBinaryLiteralFromUint(3223600, 3), v)
v, err = Convert(NewBinaryLiteralFromUint(100, -1), ft)
require.NoError(t, err)
require.Equal(t, NewBinaryLiteralFromUint(100, 3), v)
ft.SetFlen(1)
v, err = Convert(1, ft)
require.NoError(t, err)
require.Equal(t, NewBinaryLiteralFromUint(1, 1), v)
_, err = Convert(2, ft)
require.Error(t, err)
ft.SetFlen(0)
_, err = Convert(2, ft)
require.Error(t, err)
// For TypeNewDecimal
ft = NewFieldType(mysql.TypeNewDecimal)
ft.SetFlen(8)
ft.SetDecimal(4)
v, err = Convert(3.1416, ft)
require.NoErrorf(t, err, errors.ErrorStack(err))
require.Equal(t, "3.1416", v.(*MyDecimal).String())
v, err = Convert("3.1415926", ft)
require.NoError(t, err)
require.Equal(t, "3.1416", v.(*MyDecimal).String())
v, err = Convert("99999", ft)
require.Truef(t, terror.ErrorEqual(err, ErrOverflow), "err %v", err)
require.Equal(t, "9999.9999", v.(*MyDecimal).String())
v, err = Convert("-10000", ft)
require.Truef(t, terror.ErrorEqual(err, ErrOverflow), "err %v", err)
require.Equal(t, "-9999.9999", v.(*MyDecimal).String())
v, err = Convert("1,999.00", ft)
require.Truef(t, terror.ErrorEqual(err, ErrTruncated), "err %v", err)
require.Equal(t, "1.0000", v.(*MyDecimal).String())
v, err = Convert("1,999,999.00", ft)
require.Truef(t, terror.ErrorEqual(err, ErrTruncated), "err %v", err)
require.Equal(t, "1.0000", v.(*MyDecimal).String())
v, err = Convert("199.00 ", ft)
require.NoError(t, err)
require.Equal(t, "199.0000", v.(*MyDecimal).String())
// Test Datum.ToDecimal with bad number.
d := NewDatum("hello")
_, err = d.ToDecimal(sc)
require.Truef(t, terror.ErrorEqual(err, ErrTruncatedWrongVal), "err %v", err)
sc.IgnoreTruncate = true
v, err = d.ToDecimal(sc)
require.NoError(t, err)
require.Equal(t, "0", v.(*MyDecimal).String())
// For TypeYear
ft = NewFieldType(mysql.TypeYear)
v, err = Convert("2015", ft)
require.NoError(t, err)
require.Equal(t, int64(2015), v)
v, err = Convert(2015, ft)
require.NoError(t, err)
require.Equal(t, int64(2015), v)
_, err = Convert(1800, ft)
require.Error(t, err)
dt, err := ParseDate(nil, "2015-11-11")
require.NoError(t, err)
v, err = Convert(dt, ft)
require.NoError(t, err)
require.Equal(t, int64(2015), v)
v, err = Convert(ZeroDuration, ft)
require.NoError(t, err)
require.Equal(t, int64(0), v)
bj1, err := ParseBinaryJSONFromString("99")
require.NoError(t, err)
v, err = Convert(bj1, ft)
require.NoError(t, err)
require.Equal(t, int64(1999), v)
bj2, err := ParseBinaryJSONFromString("-1")
require.NoError(t, err)
_, err = Convert(bj2, ft)
require.Error(t, err)
bj3, err := ParseBinaryJSONFromString("{\"key\": 99}")
require.NoError(t, err)
_, err = Convert(bj3, ft)
require.Error(t, err)
bj4, err := ParseBinaryJSONFromString("[99, 0, 1]")
require.NoError(t, err)
_, err = Convert(bj4, ft)
require.Error(t, err)
// For enum
ft = NewFieldType(mysql.TypeEnum)
ft.SetElems([]string{"a", "b", "c"})
v, err = Convert("a", ft)
require.NoError(t, err)
require.Equal(t, Enum{Name: "a", Value: 1}, v)
v, err = Convert(2, ft)
require.NoError(t, err)
require.Equal(t, Enum{Name: "b", Value: 2}, v)
_, err = Convert("d", ft)
require.Error(t, err)
v, err = Convert(4, ft)
require.Truef(t, terror.ErrorEqual(err, ErrTruncated), "err %v", err)
require.Equal(t, Enum{}, v)
ft = NewFieldType(mysql.TypeSet)
ft.SetElems([]string{"a", "b", "c"})
v, err = Convert("a", ft)
require.NoError(t, err)
require.Equal(t, Set{Name: "a", Value: 1}, v)
v, err = Convert(2, ft)
require.NoError(t, err)
require.Equal(t, Set{Name: "b", Value: 2}, v)
v, err = Convert(3, ft)
require.NoError(t, err)
require.Equal(t, Set{Name: "a,b", Value: 3}, v)
_, err = Convert("d", ft)
require.Error(t, err)
_, err = Convert(9, ft)
require.Error(t, err)
}
func testToString(t *testing.T, val interface{}, expect string) {
b, err := ToString(val)
require.NoError(t, err)
require.Equal(t, expect, b)
}
func TestConvertToString(t *testing.T) {
testToString(t, "0", "0")
testToString(t, true, "1")
testToString(t, "false", "false")
testToString(t, 0, "0")
testToString(t, int64(0), "0")
testToString(t, uint64(0), "0")
testToString(t, float32(1.6), "1.6")
testToString(t, float64(-0.6), "-0.6")
testToString(t, []byte{1}, "\x01")
testToString(t, NewBinaryLiteralFromUint(0x4D7953514C, -1), "MySQL")
testToString(t, NewBinaryLiteralFromUint(0x41, -1), "A")
testToString(t, Enum{Name: "a", Value: 1}, "a")
testToString(t, Set{Name: "a", Value: 1}, "a")
t1, err := ParseTime(&stmtctx.StatementContext{TimeZone: time.UTC},
"2011-11-10 11:11:11.999999", mysql.TypeTimestamp, 6)
require.NoError(t, err)
testToString(t, t1, "2011-11-10 11:11:11.999999")
td, _, err := ParseDuration(nil, "11:11:11.999999", 6)
require.NoError(t, err)
testToString(t, td, "11:11:11.999999")
ft := NewFieldType(mysql.TypeNewDecimal)
ft.SetFlen(10)
ft.SetDecimal(5)
v, err := Convert(3.1415926, ft)
require.NoError(t, err)
testToString(t, v, "3.14159")
_, err = ToString(&invalidMockType{})
require.Error(t, err)
// test truncate
tests := []struct {
flen int
charset string
input string
output string
}{
{5, "utf8", "你好，世界", "你好，世界"},
{5, "utf8mb4", "你好，世界", "你好，世界"},
{4, "utf8", "你好，世界", "你好，世"},
{4, "utf8mb4", "你好，世界", "你好，世"},
{15, "binary", "你好，世界", "你好，世界"},
{12, "binary", "你好，世界", "你好，世"},
{0, "binary", "你好，世界", ""},
}
for _, tt := range tests {
ft = NewFieldType(mysql.TypeVarchar)
ft.SetFlen(tt.flen)
ft.SetCharset(tt.charset)
inputDatum := NewStringDatum(tt.input)
sc := new(stmtctx.StatementContext)
outputDatum, err := inputDatum.ConvertTo(sc, ft)
if tt.input != tt.output {
require.True(t, ErrDataTooLong.Equal(err), "flen: %d, charset: %s, input: %s, output: %s", tt.flen, tt.charset, tt.input, tt.output)
} else {
require.NoError(t, err)
}
require.Equal(t, tt.output, outputDatum.GetString())
}
}
func TestConvertToStringWithCheck(t *testing.T) {
nhUTF8 := "你好"
nhUTF8MB4 := "你好👋"
nhUTF8Invalid := "你好" + string([]byte{0x81})
type SC = *stmtctx.StatementContext
tests := []struct {
input string
outputChs string
setStmtCtx func(ctx *stmtctx.StatementContext)
output string
}{
{nhUTF8, "utf8mb4", func(s SC) { s.SkipUTF8Check = false }, nhUTF8},
{nhUTF8MB4, "utf8mb4", func(s SC) { s.SkipUTF8Check = false }, nhUTF8MB4},
{nhUTF8, "utf8mb4", func(s SC) { s.SkipUTF8Check = true }, nhUTF8},
{nhUTF8MB4, "utf8mb4", func(s SC) { s.SkipUTF8Check = true }, nhUTF8MB4},
{nhUTF8Invalid, "utf8mb4", func(s SC) { s.SkipUTF8Check = true }, nhUTF8Invalid},
{nhUTF8Invalid, "utf8mb4", func(s SC) { s.SkipUTF8Check = false }, ""},
{nhUTF8Invalid, "ascii", func(s SC) { s.SkipASCIICheck = false }, ""},
{nhUTF8Invalid, "ascii", func(s SC) { s.SkipASCIICheck = true }, nhUTF8Invalid},
{nhUTF8MB4, "utf8", func(s SC) { s.SkipUTF8MB4Check = false }, ""},
{nhUTF8MB4, "utf8", func(s SC) { s.SkipUTF8MB4Check = true }, nhUTF8MB4},
}
for _, tt := range tests {
ft := NewFieldType(mysql.TypeVarchar)
ft.SetFlen(255)
ft.SetCharset(tt.outputChs)
inputDatum := NewStringDatum(tt.input)
sc := new(stmtctx.StatementContext)
tt.setStmtCtx(sc)
outputDatum, err := inputDatum.ConvertTo(sc, ft)
if len(tt.output) == 0 {
require.True(t, charset.ErrInvalidCharacterString.Equal(err), tt)
} else {
require.NoError(t, err, tt)
require.Equal(t, tt.output, outputDatum.GetString(), tt)
}
}
}
func TestConvertToBinaryString(t *testing.T) {
nhUTF8 := "你好"
nhGBK := string([]byte{0xC4, 0xE3, 0xBA, 0xC3}) // "你好" in GBK
nhUTF8Invalid := "你好" + string([]byte{0x81})
nhGBKInvalid := nhGBK + string([]byte{0x81})
tests := []struct {
input string
inputCollate string
outputCharset string
output string
}{
{nhUTF8, "utf8_bin", "utf8", nhUTF8},
{nhUTF8, "utf8mb4_bin", "utf8mb4", nhUTF8},
{nhUTF8, "gbk_bin", "utf8", nhUTF8},
{nhUTF8, "gbk_bin", "gbk", nhUTF8},
{nhUTF8, "binary", "utf8mb4", nhUTF8},
{nhGBK, "binary", "gbk", nhUTF8},
{nhUTF8, "utf8_bin", "binary", nhUTF8},
{nhUTF8, "gbk_bin", "binary", nhGBK},
{nhUTF8Invalid, "utf8_bin", "utf8", ""},
{nhGBKInvalid, "gbk_bin", "gbk", ""},
}
for _, tt := range tests {
ft := NewFieldType(mysql.TypeVarchar)
ft.SetFlen(255)
ft.SetCharset(tt.outputCharset)
inputDatum := NewCollationStringDatum(tt.input, tt.inputCollate)
sc := new(stmtctx.StatementContext)
outputDatum, err := inputDatum.ConvertTo(sc, ft)
if len(tt.output) == 0 {
require.True(t, charset.ErrInvalidCharacterString.Equal(err), tt)
} else {
require.NoError(t, err, tt)
require.Equal(t, tt.output, outputDatum.GetString(), tt)
}
}
}
func testStrToInt(t *testing.T, str string, expect int64, truncateAsErr bool, expectErr error) {
sc := new(stmtctx.StatementContext)
sc.IgnoreTruncate = !truncateAsErr
val, err := StrToInt(sc, str, false)
if expectErr != nil {
require.Truef(t, terror.ErrorEqual(err, expectErr), "err %v", err)
} else {
require.NoError(t, err)
require.Equal(t, expect, val)
}
}
func testStrToUint(t *testing.T, str string, expect uint64, truncateAsErr bool, expectErr error) {
sc := new(stmtctx.StatementContext)
sc.IgnoreTruncate = !truncateAsErr
val, err := StrToUint(sc, str, false)
if expectErr != nil {
require.Truef(t, terror.ErrorEqual(err, expectErr), "err %v", err)
} else {
require.NoError(t, err)
require.Equal(t, expect, val)
}
}
func testStrToFloat(t *testing.T, str string, expect float64, truncateAsErr bool, expectErr error) {
sc := new(stmtctx.StatementContext)
sc.IgnoreTruncate = !truncateAsErr
val, err := StrToFloat(sc, str, false)
if expectErr != nil {
require.Truef(t, terror.ErrorEqual(err, expectErr), "err %v", err)
} else {
require.NoError(t, err)
require.Equal(t, expect, val)
}
}
func TestStrToNum(t *testing.T) {
testStrToInt(t, "0", 0, true, nil)
testStrToInt(t, "-1", -1, true, nil)
testStrToInt(t, "100", 100, true, nil)
testStrToInt(t, "65.0", 65, false, nil)
testStrToInt(t, "65.0", 65, true, nil)
testStrToInt(t, "", 0, false, nil)
testStrToInt(t, "", 0, true, ErrTruncatedWrongVal)
testStrToInt(t, "xx", 0, true, ErrTruncatedWrongVal)
testStrToInt(t, "xx", 0, false, nil)
testStrToInt(t, "11xx", 11, true, ErrTruncatedWrongVal)
testStrToInt(t, "11xx", 11, false, nil)
testStrToInt(t, "xx11", 0, false, nil)
testStrToUint(t, "0", 0, true, nil)
testStrToUint(t, "", 0, false, nil)
testStrToUint(t, "", 0, false, nil)
testStrToUint(t, "-1", 0xffffffffffffffff, false, ErrOverflow)
testStrToUint(t, "100", 100, true, nil)
testStrToUint(t, "+100", 100, true, nil)
testStrToUint(t, "65.0", 65, true, nil)
testStrToUint(t, "xx", 0, true, ErrTruncatedWrongVal)
testStrToUint(t, "11xx", 11, true, ErrTruncatedWrongVal)
testStrToUint(t, "xx11", 0, true, ErrTruncatedWrongVal)
// TODO: makes StrToFloat return truncated value instead of zero to make it pass.
testStrToFloat(t, "", 0, true, ErrTruncatedWrongVal)
testStrToFloat(t, "-1", -1.0, true, nil)
testStrToFloat(t, "1.11", 1.11, true, nil)
testStrToFloat(t, "1.11.00", 1.11, false, nil)
testStrToFloat(t, "1.11.00", 1.11, true, ErrTruncatedWrongVal)
testStrToFloat(t, "xx", 0.0, false, nil)
testStrToFloat(t, "0x00", 0.0, false, nil)
testStrToFloat(t, "11.xx", 11.0, false, nil)
testStrToFloat(t, "11.xx", 11.0, true, ErrTruncatedWrongVal)
testStrToFloat(t, "xx.11", 0.0, false, nil)
// for issue #5111
testStrToFloat(t, "1e649", math.MaxFloat64, true, ErrTruncatedWrongVal)
testStrToFloat(t, "1e649", math.MaxFloat64, false, nil)
testStrToFloat(t, "-1e649", -math.MaxFloat64, true, ErrTruncatedWrongVal)
testStrToFloat(t, "-1e649", -math.MaxFloat64, false, nil)
// for issue #10806, #11179
testSelectUpdateDeleteEmptyStringError(t)
}
func testSelectUpdateDeleteEmptyStringError(t *testing.T) {
testCases := []struct {
inSelect bool
inDelete bool
}{
{true, false},
{false, true},
}
sc := new(stmtctx.StatementContext)
sc.TruncateAsWarning = true
for _, tc := range testCases {
sc.InSelectStmt = tc.inSelect
sc.InDeleteStmt = tc.inDelete
str := ""
expect := 0
val, err := StrToInt(sc, str, false)
require.NoError(t, err)
require.Equal(t, int64(expect), val)
val1, err := StrToUint(sc, str, false)
require.NoError(t, err)
require.Equal(t, uint64(expect), val1)
val2, err := StrToFloat(sc, str, false)
require.NoError(t, err)
require.Equal(t, float64(expect), val2)
}
}
func TestFieldTypeToStr(t *testing.T) {
v := TypeToStr(mysql.TypeUnspecified, "not binary")
require.Equal(t, TypeStr(mysql.TypeUnspecified), v)
v = TypeToStr(mysql.TypeBlob, charset.CharsetBin)
require.Equal(t, "blob", v)
v = TypeToStr(mysql.TypeString, charset.CharsetBin)
require.Equal(t, "binary", v)
}
func accept(t *testing.T, tp byte, value interface{}, unsigned bool, expected string) {
ft := NewFieldType(tp)
if unsigned {
ft.AddFlag(mysql.UnsignedFlag)
}
d := NewDatum(value)
sc := new(stmtctx.StatementContext)
sc.TimeZone = time.UTC
sc.IgnoreTruncate = true
casted, err := d.ConvertTo(sc, ft)
require.NoErrorf(t, err, "%v", ft)
if casted.IsNull() {
require.Equal(t, "<nil>", expected)
} else {
str, err := casted.ToString()
require.NoError(t, err)
require.Equal(t, expected, str)
}
}
func unsignedAccept(t *testing.T, tp byte, value interface{}, expected string) {
accept(t, tp, value, true, expected)
}
func signedAccept(t *testing.T, tp byte, value interface{}, expected string) {
accept(t, tp, value, false, expected)
}
func deny(t *testing.T, tp byte, value interface{}, unsigned bool, expected string) {
ft := NewFieldType(tp)
if unsigned {
ft.AddFlag(mysql.UnsignedFlag)
}
d := NewDatum(value)
sc := new(stmtctx.StatementContext)
casted, err := d.ConvertTo(sc, ft)
require.Error(t, err)
if casted.IsNull() {
require.Equal(t, "<nil>", expected)
} else {
str, err := casted.ToString()
require.NoError(t, err)
require.Equal(t, expected, str)
}
}
func unsignedDeny(t *testing.T, tp byte, value interface{}, expected string) {
deny(t, tp, value, true, expected)
}
func signedDeny(t *testing.T, tp byte, value interface{}, expected string) {
deny(t, tp, value, false, expected)
}
func strvalue(v interface{}) string {
return fmt.Sprintf("%v", v)
}
func TestConvert(t *testing.T) {
// integer ranges
signedDeny(t, mysql.TypeTiny, -129, "-128")
signedAccept(t, mysql.TypeTiny, -128, "-128")
signedAccept(t, mysql.TypeTiny, 127, "127")
signedDeny(t, mysql.TypeTiny, 128, "127")
signedAccept(t, mysql.TypeTiny, NewBinaryLiteralFromUint(127, -1), "127")
signedDeny(t, mysql.TypeTiny, NewBinaryLiteralFromUint(128, -1), "127")
unsignedDeny(t, mysql.TypeTiny, -1, "255")
unsignedAccept(t, mysql.TypeTiny, 0, "0")
unsignedAccept(t, mysql.TypeTiny, 255, "255")
unsignedDeny(t, mysql.TypeTiny, 256, "255")
unsignedAccept(t, mysql.TypeTiny, NewBinaryLiteralFromUint(0, -1), "0")
unsignedAccept(t, mysql.TypeTiny, NewBinaryLiteralFromUint(255, -1), "255")
unsignedDeny(t, mysql.TypeTiny, NewBinaryLiteralFromUint(256, -1), "255")
signedDeny(t, mysql.TypeShort, int64(math.MinInt16)-1, strvalue(int64(math.MinInt16)))
signedAccept(t, mysql.TypeShort, int64(math.MinInt16), strvalue(int64(math.MinInt16)))
signedAccept(t, mysql.TypeShort, int64(math.MaxInt16), strvalue(int64(math.MaxInt16)))
signedDeny(t, mysql.TypeShort, int64(math.MaxInt16)+1, strvalue(int64(math.MaxInt16)))
signedAccept(t, mysql.TypeShort, NewBinaryLiteralFromUint(math.MaxInt16, -1), strvalue(int64(math.MaxInt16)))
signedDeny(t, mysql.TypeShort, NewBinaryLiteralFromUint(math.MaxInt16+1, -1), strvalue(int64(math.MaxInt16)))
unsignedDeny(t, mysql.TypeShort, -1, "65535")
unsignedAccept(t, mysql.TypeShort, 0, "0")
unsignedAccept(t, mysql.TypeShort, uint64(math.MaxUint16), strvalue(uint64(math.MaxUint16)))
unsignedDeny(t, mysql.TypeShort, uint64(math.MaxUint16)+1, strvalue(uint64(math.MaxUint16)))
unsignedAccept(t, mysql.TypeShort, NewBinaryLiteralFromUint(0, -1), "0")
unsignedAccept(t, mysql.TypeShort, NewBinaryLiteralFromUint(math.MaxUint16, -1), strvalue(uint64(math.MaxUint16)))
unsignedDeny(t, mysql.TypeShort, NewBinaryLiteralFromUint(math.MaxUint16+1, -1), strvalue(uint64(math.MaxUint16)))
signedDeny(t, mysql.TypeInt24, -1<<23-1, strvalue(-1<<23))
signedAccept(t, mysql.TypeInt24, -1<<23, strvalue(-1<<23))
signedAccept(t, mysql.TypeInt24, 1<<23-1, strvalue(1<<23-1))
signedDeny(t, mysql.TypeInt24, 1<<23, strvalue(1<<23-1))
signedAccept(t, mysql.TypeInt24, NewBinaryLiteralFromUint(1<<23-1, -1), strvalue(1<<23-1))
signedDeny(t, mysql.TypeInt24, NewBinaryLiteralFromUint(1<<23, -1), strvalue(1<<23-1))
unsignedDeny(t, mysql.TypeInt24, -1, "16777215")
unsignedAccept(t, mysql.TypeInt24, 0, "0")
unsignedAccept(t, mysql.TypeInt24, 1<<24-1, strvalue(1<<24-1))
unsignedDeny(t, mysql.TypeInt24, 1<<24, strvalue(1<<24-1))
unsignedAccept(t, mysql.TypeInt24, NewBinaryLiteralFromUint(0, -1), "0")
unsignedAccept(t, mysql.TypeInt24, NewBinaryLiteralFromUint(1<<24-1, -1), strvalue(1<<24-1))
unsignedDeny(t, mysql.TypeInt24, NewBinaryLiteralFromUint(1<<24, -1), strvalue(1<<24-1))
signedDeny(t, mysql.TypeLong, int64(math.MinInt32)-1, strvalue(int64(math.MinInt32)))
signedAccept(t, mysql.TypeLong, int64(math.MinInt32), strvalue(int64(math.MinInt32)))
signedAccept(t, mysql.TypeLong, int64(math.MaxInt32), strvalue(int64(math.MaxInt32)))
signedDeny(t, mysql.TypeLong, uint64(math.MaxUint64), strvalue(uint64(math.MaxInt32)))
signedDeny(t, mysql.TypeLong, int64(math.MaxInt32)+1, strvalue(int64(math.MaxInt32)))
signedDeny(t, mysql.TypeLong, "1343545435346432587475", strvalue(int64(math.MaxInt32)))
signedAccept(t, mysql.TypeLong, NewBinaryLiteralFromUint(math.MaxInt32, -1), strvalue(int64(math.MaxInt32)))
signedDeny(t, mysql.TypeLong, NewBinaryLiteralFromUint(math.MaxUint64, -1), strvalue(int64(math.MaxInt32)))
signedDeny(t, mysql.TypeLong, NewBinaryLiteralFromUint(math.MaxInt32+1, -1), strvalue(int64(math.MaxInt32)))
unsignedDeny(t, mysql.TypeLong, -1, "4294967295")
unsignedAccept(t, mysql.TypeLong, 0, "0")
unsignedAccept(t, mysql.TypeLong, uint64(math.MaxUint32), strvalue(uint64(math.MaxUint32)))
unsignedDeny(t, mysql.TypeLong, uint64(math.MaxUint32)+1, strvalue(uint64(math.MaxUint32)))
unsignedAccept(t, mysql.TypeLong, NewBinaryLiteralFromUint(0, -1), "0")
unsignedAccept(t, mysql.TypeLong, NewBinaryLiteralFromUint(math.MaxUint32, -1), strvalue(uint64(math.MaxUint32)))
unsignedDeny(t, mysql.TypeLong, NewBinaryLiteralFromUint(math.MaxUint32+1, -1), strvalue(uint64(math.MaxUint32)))
signedDeny(t, mysql.TypeLonglong, math.MinInt64*1.1, strvalue(int64(math.MinInt64)))
signedAccept(t, mysql.TypeLonglong, int64(math.MinInt64), strvalue(int64(math.MinInt64)))
signedAccept(t, mysql.TypeLonglong, int64(math.MaxInt64), strvalue(int64(math.MaxInt64)))
signedDeny(t, mysql.TypeLonglong, math.MaxInt64*1.1, strvalue(int64(math.MaxInt64)))
signedAccept(t, mysql.TypeLonglong, NewBinaryLiteralFromUint(math.MaxInt64, -1), strvalue(int64(math.MaxInt64)))
signedDeny(t, mysql.TypeLonglong, NewBinaryLiteralFromUint(math.MaxInt64+1, -1), strvalue(int64(math.MaxInt64)))
unsignedAccept(t, mysql.TypeLonglong, -1, "18446744073709551615")
unsignedAccept(t, mysql.TypeLonglong, 0, "0")
unsignedAccept(t, mysql.TypeLonglong, uint64(math.MaxUint64), strvalue(uint64(math.MaxUint64)))
unsignedDeny(t, mysql.TypeLonglong, math.MaxUint64*1.1, strvalue(uint64(math.MaxUint64)))
unsignedAccept(t, mysql.TypeLonglong, NewBinaryLiteralFromUint(0, -1), "0")
unsignedAccept(t, mysql.TypeLonglong, NewBinaryLiteralFromUint(math.MaxUint64, -1), strvalue(uint64(math.MaxUint64)))
// integer from string
signedAccept(t, mysql.TypeLong, " 234 ", "234")
signedAccept(t, mysql.TypeLong, " 2.35e3 ", "2350")
signedAccept(t, mysql.TypeLong, " 2.e3 ", "2000")
signedAccept(t, mysql.TypeLong, " -2.e3 ", "-2000")
signedAccept(t, mysql.TypeLong, " 2e2 ", "200")
signedAccept(t, mysql.TypeLong, " 0.002e3 ", "2")
signedAccept(t, mysql.TypeLong, " .002e3 ", "2")
signedAccept(t, mysql.TypeLong, " 20e-2 ", "0")
signedAccept(t, mysql.TypeLong, " -20e-2 ", "0")
signedAccept(t, mysql.TypeLong, " +2.51 ", "3")
signedAccept(t, mysql.TypeLong, " -9999.5 ", "-10000")
signedAccept(t, mysql.TypeLong, " 999.4", "999")
signedAccept(t, mysql.TypeLong, " -3.58", "-4")
signedDeny(t, mysql.TypeLong, " 1a ", "1")
signedDeny(t, mysql.TypeLong, " +1+ ", "1")
// integer from float
signedAccept(t, mysql.TypeLong, 234.5456, "235")
signedAccept(t, mysql.TypeLong, -23.45, "-23")
unsignedAccept(t, mysql.TypeLonglong, 234.5456, "235")
unsignedDeny(t, mysql.TypeLonglong, -23.45, "18446744073709551593")
// float from string
signedAccept(t, mysql.TypeFloat, "23.523", "23.523")
signedAccept(t, mysql.TypeFloat, int64(123), "123")
signedAccept(t, mysql.TypeFloat, uint64(123), "123")
signedAccept(t, mysql.TypeFloat, 123, "123")
signedAccept(t, mysql.TypeFloat, float32(123), "123")
signedAccept(t, mysql.TypeFloat, float64(123), "123")
signedAccept(t, mysql.TypeDouble, " -23.54", "-23.54")
signedDeny(t, mysql.TypeDouble, "-23.54a", "-23.54")
signedDeny(t, mysql.TypeDouble, "-23.54e2e", "-2354")
signedDeny(t, mysql.TypeDouble, "+.e", "0")
signedAccept(t, mysql.TypeDouble, "1e+1", "10")
// year
signedDeny(t, mysql.TypeYear, 123, "1901")
signedDeny(t, mysql.TypeYear, 3000, "2155")
signedAccept(t, mysql.TypeYear, "2000", "2000")
signedAccept(t, mysql.TypeYear, "abc", "0")
signedAccept(t, mysql.TypeYear, "00abc", "2000")
signedAccept(t, mysql.TypeYear, "0019", "2019")
signedAccept(t, mysql.TypeYear, 2155, "2155")
signedAccept(t, mysql.TypeYear, 2155.123, "2155")
signedDeny(t, mysql.TypeYear, 2156, "2155")
signedDeny(t, mysql.TypeYear, 123.123, "1901")
signedDeny(t, mysql.TypeYear, 1900, "1901")
signedAccept(t, mysql.TypeYear, 1901, "1901")
signedAccept(t, mysql.TypeYear, 1900.567, "1901")
signedDeny(t, mysql.TypeYear, 1900.456, "1901")
signedAccept(t, mysql.TypeYear, 0, "0")
signedAccept(t, mysql.TypeYear, "0", "2000")
signedAccept(t, mysql.TypeYear, "00", "2000")
signedAccept(t, mysql.TypeYear, " 0", "2000")
signedAccept(t, mysql.TypeYear, " 00", "2000")
signedAccept(t, mysql.TypeYear, " 000", "0")
signedAccept(t, mysql.TypeYear, " 0000 ", "2000")
signedAccept(t, mysql.TypeYear, " 0ab", "0")
signedAccept(t, mysql.TypeYear, "00bc", "0")
signedAccept(t, mysql.TypeYear, "000a", "0")
signedAccept(t, mysql.TypeYear, " 000a ", "2000")
signedAccept(t, mysql.TypeYear, 1, "2001")
signedAccept(t, mysql.TypeYear, "1", "2001")
signedAccept(t, mysql.TypeYear, "01", "2001")
signedAccept(t, mysql.TypeYear, 69, "2069")
signedAccept(t, mysql.TypeYear, "69", "2069")
signedAccept(t, mysql.TypeYear, 70, "1970")
signedAccept(t, mysql.TypeYear, "70", "1970")
signedAccept(t, mysql.TypeYear, 99, "1999")
signedAccept(t, mysql.TypeYear, "99", "1999")
signedDeny(t, mysql.TypeYear, 100, "1901")
signedDeny(t, mysql.TypeYear, "99999999999999999999999999999999999", "0")
// time from string
signedAccept(t, mysql.TypeDate, "2012-08-23", "2012-08-23")
signedAccept(t, mysql.TypeDatetime, "2012-08-23 12:34:03.123456", "2012-08-23 12:34:03")
signedAccept(t, mysql.TypeDatetime, ZeroDatetime, "0000-00-00 00:00:00")
signedAccept(t, mysql.TypeDatetime, int64(0), "0000-00-00 00:00:00")
signedAccept(t, mysql.TypeDatetime, NewDecFromFloatForTest(20010101100000.123456), "2001-01-01 10:00:00")
signedAccept(t, mysql.TypeTimestamp, "2012-08-23 12:34:03.123456", "2012-08-23 12:34:03")
signedAccept(t, mysql.TypeTimestamp, NewDecFromFloatForTest(20010101100000.123456), "2001-01-01 10:00:00")
signedAccept(t, mysql.TypeDuration, "10:11:12", "10:11:12")
signedAccept(t, mysql.TypeDuration, ZeroDatetime, "00:00:00")
signedAccept(t, mysql.TypeDuration, ZeroDuration, "00:00:00")
signedAccept(t, mysql.TypeDuration, 0, "00:00:00")
signedDeny(t, mysql.TypeDate, "2012-08-x", "0000-00-00")
signedDeny(t, mysql.TypeDatetime, "2012-08-x", "0000-00-00 00:00:00")
signedDeny(t, mysql.TypeTimestamp, "2012-08-x", "0000-00-00 00:00:00")
signedDeny(t, mysql.TypeDuration, "2012-08-x", "00:20:12")
signedDeny(t, mysql.TypeDuration, "0000-00-00", "00:00:00")
signedDeny(t, mysql.TypeDuration, "1234abc", "00:12:34")
// string from string
signedAccept(t, mysql.TypeString, "abc", "abc")
// string from integer
signedAccept(t, mysql.TypeString, 5678, "5678")
signedAccept(t, mysql.TypeString, ZeroDuration, "00:00:00")
signedAccept(t, mysql.TypeString, ZeroDatetime, "0000-00-00 00:00:00")
signedAccept(t, mysql.TypeString, []byte("123"), "123")
// TODO add more tests
signedAccept(t, mysql.TypeNewDecimal, 123, "123")
signedAccept(t, mysql.TypeNewDecimal, int64(123), "123")
signedAccept(t, mysql.TypeNewDecimal, uint64(123), "123")
signedAccept(t, mysql.TypeNewDecimal, float32(123), "123")
signedAccept(t, mysql.TypeNewDecimal, 123.456, "123.456")
signedAccept(t, mysql.TypeNewDecimal, "-123.456", "-123.456")
signedAccept(t, mysql.TypeNewDecimal, NewDecFromInt(12300000), "12300000")
dec := NewDecFromInt(-123)
err := dec.Shift(-5)
require.NoError(t, err)
err = dec.Round(dec, 5, ModeHalfUp)
require.NoError(t, err)
signedAccept(t, mysql.TypeNewDecimal, dec, "-0.00123")
}
func TestRoundIntStr(t *testing.T) {
cases := []struct {
a string
b byte
c string
}{
{"+999", '5', "+1000"},
{"999", '5', "1000"},
{"-999", '5', "-1000"},
}
for _, cc := range cases {
require.Equal(t, cc.c, roundIntStr(cc.b, cc.a))
}
}
func TestGetValidInt(t *testing.T) {
tests := []struct {
origin string
valid string
signed bool
warning bool
}{
{"100", "100", true, false},
{"-100", "-100", true, false},
{"9223372036854775808", "9223372036854775808", false, false},
{"1abc", "1", true, true},
{"-1-1", "-1", true, true},
{"+1+1", "+1", true, true},
{"123..34", "123", true, true},
{"123.23E-10", "0", true, false},
{"1.1e1.3", "11", true, true},
{"11e1.3", "110", true, true},
{"1.", "1", true, false},
{".1", "0", true, false},
{"", "0", true, true},
{"123e+", "123", true, true},
{"123de", "123", true, true},
}
sc := new(stmtctx.StatementContext)
sc.TruncateAsWarning = true
sc.InSelectStmt = true
warningCount := 0
for i, tt := range tests {
prefix, err := getValidIntPrefix(sc, tt.origin, false)
require.NoError(t, err)
require.Equal(t, tt.valid, prefix)
if tt.signed {
_, err = strconv.ParseInt(prefix, 10, 64)
} else {
_, err = strconv.ParseUint(prefix, 10, 64)
}
require.NoError(t, err)
warnings := sc.GetWarnings()
if tt.warning {
require.Lenf(t, warnings, warningCount+1, "%d", i)
require.True(t, terror.ErrorEqual(warnings[len(warnings)-1].Err, ErrTruncatedWrongVal))
warningCount++
} else {
require.Len(t, warnings, warningCount)
}
}
tests2 := []struct {
origin string
valid string
warning bool
}{
{"100", "100", false},
{"-100", "-100", false},
{"1abc", "1", true},
{"-1-1", "-1", true},
{"+1+1", "+1", true},
{"123..34", "123.", true},
{"123.23E-10", "0", false},
{"1.1e1.3", "1.1e1", true},
{"11e1.3", "11e1", true},
{"1.", "1", false},
{".1", "0", false},
{"", "0", true},
{"123e+", "123", true},
{"123de", "123", true},
}
sc.TruncateAsWarning = false
sc.InSelectStmt = false
for _, tt := range tests2 {
prefix, err := getValidIntPrefix(sc, tt.origin, false)
if tt.warning {
require.True(t, terror.ErrorEqual(err, ErrTruncatedWrongVal))
} else {
require.NoError(t, err)
}
require.Equal(t, tt.valid, prefix)
}
}
func TestGetValidFloat(t *testing.T) {
tests := []struct {
origin string
valid string
}{
{"-100", "-100"},
{"1abc", "1"},
{"-1-1", "-1"},
{"+1+1", "+1"},
{"123..34", "123."},
{"123.23E-10", "123.23E-10"},
{"1.1e1.3", "1.1e1"},
{"11e1.3", "11e1"},
{"1.1e-13a", "1.1e-13"},
{"1.", "1."},
{".1", ".1"},
{"", "0"},
{"123e+", "123"},
{"123.e", "123."},
{"0-123", "0"},
{"9-3", "9"},
{"1001001\\u0000\\u0000\\u0000", "1001001"},
}
sc := new(stmtctx.StatementContext)
for _, tt := range tests {
prefix, _ := getValidFloatPrefix(sc, tt.origin, false)
require.Equal(t, tt.valid, prefix)
_, err := strconv.ParseFloat(prefix, 64)
require.NoError(t, err)
}
tests2 := []struct {
origin string
expected string
}{
{"1e9223372036854775807", "1"},
{"125e342", "125"},
{"1e21", "1"},
{"1e5", "100000"},
{"-123.45678e5", "-12345678"},
{"+0.5", "1"},
{"-0.5", "-1"},
{".5e0", "1"},
{"+.5e0", "+1"},
{"-.5e0", "-1"},
{".5", "1"},
{"123.456789e5", "12345679"},
{"123.456784e5", "12345678"},
{"+999.9999e2", "+100000"},
}
for _, tt := range tests2 {
str, err := floatStrToIntStr(sc, tt.origin, tt.origin)
require.NoError(t, err)
require.Equalf(t, tt.expected, str, "%v, %v", tt.origin, tt.expected)
}
}