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etc_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 (
"io"
"testing"
"github.com/pingcap/errors"
"github.com/pingcap/tidb/parser/charset"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/stretchr/testify/require"
)
func testIsTypeBlob(t *testing.T, tp byte, expect bool) {
v := IsTypeBlob(tp)
require.Equal(t, expect, v)
}
func testIsTypeChar(t *testing.T, tp byte, expect bool) {
v := IsTypeChar(tp)
require.Equal(t, expect, v)
}
func TestIsType(t *testing.T) {
testIsTypeBlob(t, mysql.TypeTinyBlob, true)
testIsTypeBlob(t, mysql.TypeMediumBlob, true)
testIsTypeBlob(t, mysql.TypeBlob, true)
testIsTypeBlob(t, mysql.TypeLongBlob, true)
testIsTypeBlob(t, mysql.TypeInt24, false)
testIsTypeChar(t, mysql.TypeString, true)
testIsTypeChar(t, mysql.TypeVarchar, true)
testIsTypeChar(t, mysql.TypeLong, false)
}
func testTypeStr(t *testing.T, tp byte, expect string) {
v := TypeStr(tp)
require.Equal(t, expect, v)
}
func testTypeToStr(t *testing.T, tp byte, charset string, expect string) {
v := TypeToStr(tp, charset)
require.Equal(t, expect, v)
}
func TestTypeToStr(t *testing.T) {
testTypeStr(t, mysql.TypeYear, "year")
testTypeStr(t, 0xdd, "")
testTypeToStr(t, mysql.TypeBlob, "utf8", "text")
testTypeToStr(t, mysql.TypeLongBlob, "utf8", "longtext")
testTypeToStr(t, mysql.TypeTinyBlob, "utf8", "tinytext")
testTypeToStr(t, mysql.TypeMediumBlob, "utf8", "mediumtext")
testTypeToStr(t, mysql.TypeVarchar, "binary", "varbinary")
testTypeToStr(t, mysql.TypeString, "binary", "binary")
testTypeToStr(t, mysql.TypeTiny, "binary", "tinyint")
testTypeToStr(t, mysql.TypeBlob, "binary", "blob")
testTypeToStr(t, mysql.TypeLongBlob, "binary", "longblob")
testTypeToStr(t, mysql.TypeTinyBlob, "binary", "tinyblob")
testTypeToStr(t, mysql.TypeMediumBlob, "binary", "mediumblob")
testTypeToStr(t, mysql.TypeVarchar, "utf8", "varchar")
testTypeToStr(t, mysql.TypeString, "utf8", "char")
testTypeToStr(t, mysql.TypeShort, "binary", "smallint")
testTypeToStr(t, mysql.TypeInt24, "binary", "mediumint")
testTypeToStr(t, mysql.TypeLong, "binary", "int")
testTypeToStr(t, mysql.TypeLonglong, "binary", "bigint")
testTypeToStr(t, mysql.TypeFloat, "binary", "float")
testTypeToStr(t, mysql.TypeDouble, "binary", "double")
testTypeToStr(t, mysql.TypeYear, "binary", "year")
testTypeToStr(t, mysql.TypeDuration, "binary", "time")
testTypeToStr(t, mysql.TypeDatetime, "binary", "datetime")
testTypeToStr(t, mysql.TypeDate, "binary", "date")
testTypeToStr(t, mysql.TypeTimestamp, "binary", "timestamp")
testTypeToStr(t, mysql.TypeNewDecimal, "binary", "decimal")
testTypeToStr(t, mysql.TypeUnspecified, "binary", "unspecified")
testTypeToStr(t, 0xdd, "binary", "")
testTypeToStr(t, mysql.TypeBit, "binary", "bit")
testTypeToStr(t, mysql.TypeEnum, "binary", "enum")
testTypeToStr(t, mysql.TypeSet, "binary", "set")
}
func TestEOFAsNil(t *testing.T) {
err := EOFAsNil(io.EOF)
require.NoError(t, err)
err = EOFAsNil(errors.New("test"))
require.EqualError(t, err, "test")
}
func TestMaxFloat(t *testing.T) {
tests := []struct {
flen int
decimal int
expect float64
}{
{3, 2, 9.99},
{5, 2, 999.99},
{10, 1, 999999999.9},
{5, 5, 0.99999},
}
for _, test := range tests {
require.Equal(t, test.expect, GetMaxFloat(test.flen, test.decimal))
}
}
func TestRoundFloat(t *testing.T) {
tests := []struct {
input float64
expect float64
}{
{2.5, 2},
{1.5, 2},
{0.5, 0},
{0.49999999999999997, 0},
{0, 0},
{-0.49999999999999997, 0},
{-0.5, 0},
{-2.5, -2},
{-1.5, -2},
}
for _, test := range tests {
require.Equal(t, test.expect, RoundFloat(test.input))
}
}
func TestRound(t *testing.T) {
tests := []struct {
input float64
dec int
expect float64
}{
{-1.23, 0, -1},
{-1.58, 0, -2},
{1.58, 0, 2},
{1.298, 1, 1.3},
{1.298, 0, 1},
{23.298, -1, 20},
}
for _, test := range tests {
require.Equal(t, test.expect, Round(test.input, test.dec))
}
}
func TestTruncateFloat(t *testing.T) {
tests := []struct {
input float64
flen int
decimal int
expect float64
err error
}{
{100.114, 10, 2, 100.11, nil},
{100.115, 10, 2, 100.12, nil},
{100.1156, 10, 3, 100.116, nil},
{100.1156, 3, 1, 99.9, ErrOverflow},
{1.36, 10, 2, 1.36, nil},
}
for _, test := range tests {
f, err := TruncateFloat(test.input, test.flen, test.decimal)
require.Equal(t, test.expect, f)
require.Truef(t, terror.ErrorEqual(err, test.err), "err: %v", err)
}
}
func TestIsTypeTemporal(t *testing.T) {
res := IsTypeTemporal(mysql.TypeDuration)
require.True(t, res)
res = IsTypeTemporal(mysql.TypeDatetime)
require.True(t, res)
res = IsTypeTemporal(mysql.TypeTimestamp)
require.True(t, res)
res = IsTypeTemporal(mysql.TypeDate)
require.True(t, res)
res = IsTypeTemporal(mysql.TypeNewDate)
require.True(t, res)
res = IsTypeTemporal('t')
require.False(t, res)
}
func TestIsBinaryStr(t *testing.T) {
in := &FieldType{}
in.SetType(mysql.TypeBit)
in.SetFlag(mysql.UnsignedFlag)
in.SetFlen(1)
in.SetDecimal(0)
in.SetCharset(charset.CharsetUTF8)
in.SetCollate(charset.CollationUTF8)
in.SetCollate(charset.CollationUTF8)
res := IsBinaryStr(in)
require.False(t, res)
in.SetCollate(charset.CollationBin)
res = IsBinaryStr(in)
require.False(t, res)
in.SetType(mysql.TypeBlob)
res = IsBinaryStr(in)
require.True(t, res)
}
func TestIsNonBinaryStr(t *testing.T) {
in := NewFieldType(mysql.TypeBit)
in.SetFlag(mysql.UnsignedFlag)
in.SetFlen(1)
in.SetDecimal(0)
in.SetCharset(charset.CharsetUTF8)
in.SetCollate(charset.CollationUTF8)
in.SetCollate(charset.CollationBin)
res := IsBinaryStr(in)
require.False(t, res)
in.SetCollate(charset.CollationUTF8)
res = IsBinaryStr(in)
require.False(t, res)
in.SetType(mysql.TypeBlob)
res = IsBinaryStr(in)
require.False(t, res)
}
func TestIsTemporalWithDate(t *testing.T) {
res := IsTemporalWithDate(mysql.TypeDatetime)
require.True(t, res)
res = IsTemporalWithDate(mysql.TypeDate)
require.True(t, res)
res = IsTemporalWithDate(mysql.TypeTimestamp)
require.True(t, res)
res = IsTemporalWithDate('t')
require.False(t, res)
}
func TestIsTypePrefixable(t *testing.T) {
res := IsTypePrefixable('t')
require.False(t, res)
res = IsTypePrefixable(mysql.TypeBlob)
require.True(t, res)
}
func TestIsTypeFractionable(t *testing.T) {
res := IsTypeFractionable(mysql.TypeDatetime)
require.True(t, res)
res = IsTypeFractionable(mysql.TypeDuration)
require.True(t, res)
res = IsTypeFractionable(mysql.TypeTimestamp)
require.True(t, res)
res = IsTypeFractionable('t')
require.False(t, res)
}
func TestIsTypeNumeric(t *testing.T) {
res := IsTypeNumeric(mysql.TypeBit)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeTiny)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeInt24)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeLong)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeLonglong)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeNewDecimal)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeUnspecified)
require.False(t, res)
res = IsTypeNumeric(mysql.TypeFloat)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeDouble)
require.True(t, res)
res = IsTypeNumeric(mysql.TypeShort)
require.True(t, res)
res = IsTypeNumeric('t')
require.False(t, res)
}