634 lines
13 KiB
Go
634 lines
13 KiB
Go
// Copyright 2015 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package codec
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import (
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"bytes"
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"math"
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"testing"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/mysql"
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)
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func TestT(t *testing.T) {
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TestingT(t)
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}
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var _ = Suite(&testCodecSuite{})
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type testCodecSuite struct {
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}
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func (s *testCodecSuite) TestCodecKey(c *C) {
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table := []struct {
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Input []interface{}
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Expect []interface{}
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}{
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{
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[]interface{}{int64(1)},
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[]interface{}{int64(1)},
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},
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{
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[]interface{}{float32(1), float64(3.15), []byte("123"), "123"},
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[]interface{}{float64(1), float64(3.15), []byte("123"), "123"},
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},
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{
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[]interface{}{uint64(1), float64(3.15), []byte("123"), int64(-1)},
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[]interface{}{uint64(1), float64(3.15), []byte("123"), int64(-1)},
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},
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{
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[]interface{}{true, false},
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[]interface{}{int64(1), int64(0)},
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},
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{
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[]interface{}{int(1), int8(1), int16(1), int32(1), int64(1)},
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[]interface{}{int64(1), int64(1), int64(1), int64(1), int64(1)},
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},
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{
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[]interface{}{uint(1), uint8(1), uint16(1), uint32(1), uint64(1)},
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[]interface{}{uint64(1), uint64(1), uint64(1), uint64(1), uint64(1)},
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},
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{
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[]interface{}{nil},
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[]interface{}{nil},
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},
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{
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[]interface{}{mysql.Hex{Value: 100}, mysql.Bit{Value: 100, Width: 8}},
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[]interface{}{int64(100), uint64(100)},
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},
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{
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[]interface{}{mysql.Enum{Name: "a", Value: 1}, mysql.Set{Name: "a", Value: 1}},
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[]interface{}{uint64(1), uint64(1)},
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},
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}
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for _, t := range table {
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b, err := EncodeKey(t.Input...)
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c.Assert(err, IsNil)
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args, err := DecodeKey(b)
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c.Assert(err, IsNil)
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c.Assert(args, DeepEquals, t.Expect)
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}
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}
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func (s *testCodecSuite) TestCodecKeyCompare(c *C) {
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table := []struct {
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Left []interface{}
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Right []interface{}
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Expect int
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}{
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{
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[]interface{}{1},
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[]interface{}{1},
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0,
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},
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{
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[]interface{}{-1},
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[]interface{}{1},
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-1,
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},
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{
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[]interface{}{3.15},
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[]interface{}{3.12},
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1,
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},
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{
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[]interface{}{"abc"},
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[]interface{}{"abcd"},
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-1,
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},
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{
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[]interface{}{1, "abc"},
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[]interface{}{1, "abcd"},
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-1,
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},
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{
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[]interface{}{1, "abc", "def"},
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[]interface{}{1, "abcd", "af"},
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-1,
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},
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{
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[]interface{}{3.12, "ebc", "def"},
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[]interface{}{2.12, "abcd", "af"},
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1,
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},
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{
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[]interface{}{[]byte{0x01, 0x00}, []byte{0xFF}},
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[]interface{}{[]byte{0x01, 0x00, 0xFF}},
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-1,
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},
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{
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[]interface{}{[]byte{0x01}, uint64(0xFFFFFFFFFFFFFFF)},
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[]interface{}{[]byte{0x01, 0x10}, 0},
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-1,
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},
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{
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[]interface{}{0},
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[]interface{}{nil},
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1,
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},
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{
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[]interface{}{[]byte{0x00}},
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[]interface{}{nil},
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1,
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},
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{
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[]interface{}{math.SmallestNonzeroFloat64},
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[]interface{}{nil},
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1,
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},
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{
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[]interface{}{int64(math.MinInt64)},
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[]interface{}{nil},
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1,
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},
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{
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[]interface{}{1, int64(math.MinInt64), nil},
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[]interface{}{1, nil, uint64(math.MaxUint64)},
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1,
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},
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{
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[]interface{}{1, []byte{}, nil},
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[]interface{}{1, nil, 123},
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1,
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},
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{
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[]interface{}{parseTime(c, "2011-11-11 00:00:00"), 1},
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[]interface{}{parseTime(c, "2011-11-11 00:00:00"), 0},
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1,
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},
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{
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[]interface{}{parseDuration(c, "00:00:00"), 1},
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[]interface{}{parseDuration(c, "00:00:01"), 0},
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-1,
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},
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}
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for _, t := range table {
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b1, err := EncodeKey(t.Left...)
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c.Assert(err, IsNil)
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b2, err := EncodeKey(t.Right...)
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c.Assert(err, IsNil)
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c.Assert(bytes.Compare(b1, b2), Equals, t.Expect)
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}
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}
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func (s *testCodecSuite) TestNumberCodec(c *C) {
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tblInt64 := []int64{
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math.MinInt64,
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math.MinInt32,
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math.MinInt16,
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math.MinInt8,
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0,
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math.MaxInt8,
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math.MaxInt16,
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math.MaxInt32,
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math.MaxInt64,
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1<<47 - 1,
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-1 << 47,
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1<<23 - 1,
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-1 << 23,
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1<<55 - 1,
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-1 << 55,
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1,
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-1,
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}
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for _, t := range tblInt64 {
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b := EncodeInt(nil, t)
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_, v, err := DecodeInt(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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b = EncodeIntDesc(nil, t)
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_, v, err = DecodeIntDesc(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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}
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tblUint64 := []uint64{
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0,
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math.MaxUint8,
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math.MaxUint16,
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math.MaxUint32,
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math.MaxUint64,
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1<<24 - 1,
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1<<48 - 1,
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1<<56 - 1,
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1,
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math.MaxInt16,
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math.MaxInt8,
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math.MaxInt32,
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math.MaxInt64,
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}
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for _, t := range tblUint64 {
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b := EncodeUint(nil, t)
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_, v, err := DecodeUint(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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b = EncodeUintDesc(nil, t)
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_, v, err = DecodeUintDesc(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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}
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}
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func (s *testCodecSuite) TestNumberOrder(c *C) {
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tblInt64 := []struct {
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Arg1 int64
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Arg2 int64
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Ret int
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}{
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{-1, 1, -1},
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{math.MaxInt64, math.MinInt64, 1},
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{math.MaxInt64, math.MaxInt32, 1},
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{math.MinInt32, math.MaxInt16, -1},
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{math.MinInt64, math.MaxInt8, -1},
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{0, math.MaxInt8, -1},
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{math.MinInt8, 0, -1},
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{math.MinInt16, math.MaxInt16, -1},
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{1, -1, 1},
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{1, 0, 1},
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{-1, 0, -1},
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{0, 0, 0},
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{math.MaxInt16, math.MaxInt16, 0},
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}
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for _, t := range tblInt64 {
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b1 := EncodeInt(nil, t.Arg1)
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b2 := EncodeInt(nil, t.Arg2)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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b1 = EncodeIntDesc(nil, t.Arg1)
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b2 = EncodeIntDesc(nil, t.Arg2)
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ret = bytes.Compare(b1, b2)
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c.Assert(ret, Equals, -t.Ret)
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}
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tblUint64 := []struct {
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Arg1 uint64
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Arg2 uint64
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Ret int
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}{
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{0, 0, 0},
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{1, 0, 1},
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{0, 1, -1},
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{math.MaxInt8, math.MaxInt16, -1},
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{math.MaxUint32, math.MaxInt32, 1},
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{math.MaxUint8, math.MaxInt8, 1},
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{math.MaxUint16, math.MaxInt32, -1},
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{math.MaxUint64, math.MaxInt64, 1},
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{math.MaxInt64, math.MaxUint32, 1},
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{math.MaxUint64, 0, 1},
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{0, math.MaxUint64, -1},
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}
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for _, t := range tblUint64 {
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b1 := EncodeUint(nil, t.Arg1)
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b2 := EncodeUint(nil, t.Arg2)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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b1 = EncodeUintDesc(nil, t.Arg1)
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b2 = EncodeUintDesc(nil, t.Arg2)
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ret = bytes.Compare(b1, b2)
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c.Assert(ret, Equals, -t.Ret)
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}
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}
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func (s *testCodecSuite) TestFloatCodec(c *C) {
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tblFloat := []float64{
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-1,
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0,
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1,
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math.MaxFloat64,
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math.MaxFloat32,
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math.SmallestNonzeroFloat32,
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math.SmallestNonzeroFloat64}
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for _, t := range tblFloat {
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b := EncodeFloat(nil, t)
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_, v, err := DecodeFloat(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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b = EncodeFloatDesc(nil, t)
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_, v, err = DecodeFloatDesc(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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}
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tblCmp := []struct {
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Arg1 float64
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Arg2 float64
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Ret int
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}{
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{1, -1, 1},
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{1, 0, 1},
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{0, -1, 1},
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{0, 0, 0},
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{math.MaxFloat64, 1, 1},
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{math.MaxFloat32, math.MaxFloat64, -1},
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{math.MaxFloat64, 0, 1},
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{math.MaxFloat64, math.SmallestNonzeroFloat64, 1},
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}
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for _, t := range tblCmp {
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b1 := EncodeFloat(nil, t.Arg1)
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b2 := EncodeFloat(nil, t.Arg2)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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b1 = EncodeFloatDesc(nil, t.Arg1)
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b2 = EncodeFloatDesc(nil, t.Arg2)
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ret = bytes.Compare(b1, b2)
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c.Assert(ret, Equals, -t.Ret)
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}
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}
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func (s *testCodecSuite) TestBytes(c *C) {
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tblBytes := [][]byte{
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{},
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{0x00, 0x01},
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{0xff, 0xff},
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{0x01, 0x00},
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[]byte("abc"),
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[]byte("hello world"),
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}
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for _, t := range tblBytes {
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b := EncodeBytes(nil, t)
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_, v, err := DecodeBytes(b)
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c.Assert(err, IsNil)
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c.Assert(t, DeepEquals, v)
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b = EncodeBytesDesc(nil, t)
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_, v, err = DecodeBytesDesc(b)
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c.Assert(err, IsNil)
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c.Assert(t, DeepEquals, v)
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}
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tblCmp := []struct {
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Arg1 []byte
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Arg2 []byte
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Ret int
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}{
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{[]byte{}, []byte{0x00}, -1},
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{[]byte{0x00}, []byte{0x00}, 0},
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{[]byte{0xFF}, []byte{0x00}, 1},
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{[]byte{0xFF}, []byte{0xFF, 0x00}, -1},
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{[]byte("a"), []byte("b"), -1},
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{[]byte("a"), []byte{0x00}, 1},
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}
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for _, t := range tblCmp {
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b1 := EncodeBytes(nil, t.Arg1)
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b2 := EncodeBytes(nil, t.Arg2)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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b1 = EncodeBytesDesc(nil, t.Arg1)
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b2 = EncodeBytesDesc(nil, t.Arg2)
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ret = bytes.Compare(b1, b2)
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c.Assert(ret, Equals, -t.Ret)
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}
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}
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func parseTime(c *C, s string) mysql.Time {
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m, err := mysql.ParseTime(s, mysql.TypeDatetime, mysql.DefaultFsp)
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c.Assert(err, IsNil)
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return m
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}
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func parseDuration(c *C, s string) mysql.Duration {
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m, err := mysql.ParseDuration(s, mysql.DefaultFsp)
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c.Assert(err, IsNil)
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return m
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}
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func (s *testCodecSuite) TestTime(c *C) {
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tbl := []string{
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"2011-01-01 00:00:00",
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"2011-01-01 00:00:00",
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"0001-01-01 00:00:00",
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}
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for _, t := range tbl {
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m := parseTime(c, t)
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b, err := EncodeKey(m)
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c.Assert(err, IsNil)
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v, err := DecodeKey(b)
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c.Assert(err, IsNil)
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c.Assert(v, DeepEquals, []interface{}{t})
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}
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tblCmp := []struct {
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Arg1 string
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Arg2 string
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Ret int
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}{
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{"2011-10-10 00:00:00", "2000-12-12 11:11:11", 1},
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{"2000-10-10 00:00:00", "2001-10-10 00:00:00", -1},
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{"2000-10-10 00:00:00", "2000-10-10 00:00:00", 0},
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}
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for _, t := range tblCmp {
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m1 := parseTime(c, t.Arg1)
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m2 := parseTime(c, t.Arg2)
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b1, err := EncodeKey(m1)
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c.Assert(err, IsNil)
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b2, err := EncodeKey(m2)
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c.Assert(err, IsNil)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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}
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}
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func (s *testCodecSuite) TestDuration(c *C) {
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tbl := []string{
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"11:11:11",
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"00:00:00",
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"1 11:11:11",
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}
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for _, t := range tbl {
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m := parseDuration(c, t)
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b, err := EncodeKey(m)
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c.Assert(err, IsNil)
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v, err := DecodeKey(b)
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c.Assert(err, IsNil)
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m.Fsp = mysql.MaxFsp
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c.Assert(v, DeepEquals, []interface{}{m})
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}
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tblCmp := []struct {
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Arg1 string
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Arg2 string
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Ret int
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}{
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{"20:00:00", "11:11:11", 1},
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{"00:00:00", "00:00:01", -1},
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{"00:00:00", "00:00:00", 0},
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}
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for _, t := range tblCmp {
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m1 := parseDuration(c, t.Arg1)
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m2 := parseDuration(c, t.Arg2)
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b1, err := EncodeKey(m1)
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c.Assert(err, IsNil)
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b2, err := EncodeKey(m2)
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c.Assert(err, IsNil)
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ret := bytes.Compare(b1, b2)
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c.Assert(ret, Equals, t.Ret)
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}
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}
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func (s *testCodecSuite) TestDecimal(c *C) {
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tbl := []string{
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"1234.00",
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"1234",
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"12.34",
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"12.340",
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"0.1234",
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"0.0",
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"0",
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"-0.0",
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"-0.0000",
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"-1234.00",
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"-1234",
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"-12.34",
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"-12.340",
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"-0.1234"}
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for _, t := range tbl {
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m, err := mysql.ParseDecimal(t)
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c.Assert(err, IsNil)
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b, err := EncodeKey(m)
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c.Assert(err, IsNil)
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v, err := DecodeKey(b)
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c.Assert(err, IsNil)
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c.Assert(v, HasLen, 1)
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vv, ok := v[0].(mysql.Decimal)
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c.Assert(ok, IsTrue)
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c.Assert(vv.Equals(m), IsTrue)
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}
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tblCmp := []struct {
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Arg1 interface{}
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Arg2 interface{}
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Ret int
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}{
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// Test for float type decimal.
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{"1234", "123400", -1},
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{"12340", "123400", -1},
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{"1234", "1234.5", -1},
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{"1234", "1234.0000", 0},
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{"1234", "12.34", 1},
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{"12.34", "12.35", -1},
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{"0.1234", "12.3400", -1},
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{"0.1234", "0.1235", -1},
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{"0.123400", "12.34", -1},
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{"12.34000", "12.34", 0},
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{"0.01234", "0.01235", -1},
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{"0.1234", "0", 1},
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{"0.0000", "0", 0},
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{"0.0001", "0", 1},
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{"0.0001", "0.0000", 1},
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{"0", "-0.0000", 0},
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{"-0.0001", "0", -1},
|
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{"-0.1234", "0", -1},
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{"-0.1234", "0.1234", -1},
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{"-1.234", "-12.34", 1},
|
|
{"-0.1234", "-12.34", 1},
|
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{"-12.34", "1234", -1},
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|
{"-12.34", "-12.35", 1},
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|
{"-0.01234", "-0.01235", 1},
|
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{"-1234", "-123400", 1},
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{"-12340", "-123400", 1},
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|
|
|
// Test for int type decimal.
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{int64(-1), int64(1), -1},
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{int64(math.MaxInt64), int64(math.MinInt64), 1},
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{int64(math.MaxInt64), int64(math.MaxInt32), 1},
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{int64(math.MinInt32), int64(math.MaxInt16), -1},
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|
{int64(math.MinInt64), int64(math.MaxInt8), -1},
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{int64(0), int64(math.MaxInt8), -1},
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{int64(math.MinInt8), int64(0), -1},
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|
{int64(math.MinInt16), int64(math.MaxInt16), -1},
|
|
{int64(1), int64(-1), 1},
|
|
{int64(1), int64(0), 1},
|
|
{int64(-1), int64(0), -1},
|
|
{int64(0), int64(0), 0},
|
|
{int64(math.MaxInt16), int64(math.MaxInt16), 0},
|
|
|
|
// Test for uint type decimal.
|
|
{uint64(0), uint64(0), 0},
|
|
{uint64(1), uint64(0), 1},
|
|
{uint64(0), uint64(1), -1},
|
|
{uint64(math.MaxInt8), uint64(math.MaxInt16), -1},
|
|
{uint64(math.MaxUint32), uint64(math.MaxInt32), 1},
|
|
{uint64(math.MaxUint8), uint64(math.MaxInt8), 1},
|
|
{uint64(math.MaxUint16), uint64(math.MaxInt32), -1},
|
|
{uint64(math.MaxUint64), uint64(math.MaxInt64), 1},
|
|
{uint64(math.MaxInt64), uint64(math.MaxUint32), 1},
|
|
{uint64(math.MaxUint64), uint64(0), 1},
|
|
{uint64(0), uint64(math.MaxUint64), -1},
|
|
}
|
|
|
|
for _, t := range tblCmp {
|
|
m1, err := mysql.ConvertToDecimal(t.Arg1)
|
|
c.Assert(err, IsNil)
|
|
m2, err := mysql.ConvertToDecimal(t.Arg2)
|
|
c.Assert(err, IsNil)
|
|
|
|
b1, err := EncodeKey(m1)
|
|
c.Assert(err, IsNil)
|
|
b2, err := EncodeKey(m2)
|
|
c.Assert(err, IsNil)
|
|
|
|
ret := bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, t.Ret)
|
|
}
|
|
}
|