822 lines
19 KiB
Go
822 lines
19 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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"github.com/pingcap/tidb/sessionctx/variable"
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"github.com/pingcap/tidb/util/testleak"
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"github.com/pingcap/tidb/util/types"
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)
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func TestT(t *testing.T) {
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CustomVerboseFlag = true
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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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defer testleak.AfterTest(c)()
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table := []struct {
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Input []types.Datum
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Expect []types.Datum
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}{
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{
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types.MakeDatums(int64(1)),
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types.MakeDatums(int64(1)),
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},
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{
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types.MakeDatums(float32(1), float64(3.15), []byte("123"), "123"),
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types.MakeDatums(float64(1), float64(3.15), []byte("123"), []byte("123")),
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},
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{
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types.MakeDatums(uint64(1), float64(3.15), []byte("123"), int64(-1)),
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types.MakeDatums(uint64(1), float64(3.15), []byte("123"), int64(-1)),
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},
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{
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types.MakeDatums(true, false),
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types.MakeDatums(int64(1), int64(0)),
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},
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{
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types.MakeDatums(nil),
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types.MakeDatums(nil),
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},
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{
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types.MakeDatums(types.Hex{Value: 100}, types.Bit{Value: 100, Width: 8}),
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types.MakeDatums(int64(100), uint64(100)),
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},
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{
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types.MakeDatums(types.Enum{Name: "a", Value: 1}, types.Set{Name: "a", Value: 1}),
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types.MakeDatums(uint64(1), uint64(1)),
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},
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}
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for i, t := range table {
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comment := Commentf("%d %v", i, t)
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b, err := EncodeKey(nil, t.Input...)
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c.Assert(err, IsNil, comment)
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args, err := Decode(b, 1)
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c.Assert(err, IsNil)
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c.Assert(args, DeepEquals, t.Expect)
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b, err = EncodeValue(nil, t.Input...)
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c.Assert(err, IsNil)
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args, err = Decode(b, 1)
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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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defer testleak.AfterTest(c)()
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table := []struct {
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Left []types.Datum
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Right []types.Datum
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Expect int
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}{
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{
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types.MakeDatums(1),
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types.MakeDatums(1),
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0,
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},
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{
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types.MakeDatums(-1),
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types.MakeDatums(1),
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-1,
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},
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{
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types.MakeDatums(3.15),
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types.MakeDatums(3.12),
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1,
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},
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{
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types.MakeDatums("abc"),
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types.MakeDatums("abcd"),
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-1,
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},
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{
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types.MakeDatums("abcdefgh"),
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types.MakeDatums("abcdefghi"),
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-1,
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},
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{
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types.MakeDatums(1, "abc"),
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types.MakeDatums(1, "abcd"),
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-1,
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},
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{
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types.MakeDatums(1, "abc", "def"),
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types.MakeDatums(1, "abcd", "af"),
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-1,
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},
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{
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types.MakeDatums(3.12, "ebc", "def"),
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types.MakeDatums(2.12, "abcd", "af"),
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1,
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},
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{
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types.MakeDatums([]byte{0x01, 0x00}, []byte{0xFF}),
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types.MakeDatums([]byte{0x01, 0x00, 0xFF}),
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-1,
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},
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{
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types.MakeDatums([]byte{0x01}, uint64(0xFFFFFFFFFFFFFFF)),
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types.MakeDatums([]byte{0x01, 0x10}, 0),
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-1,
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},
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{
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types.MakeDatums(0),
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types.MakeDatums(nil),
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1,
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},
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{
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types.MakeDatums([]byte{0x00}),
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types.MakeDatums(nil),
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1,
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},
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{
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types.MakeDatums(math.SmallestNonzeroFloat64),
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types.MakeDatums(nil),
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1,
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},
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{
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types.MakeDatums(int64(math.MinInt64)),
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types.MakeDatums(nil),
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1,
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},
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{
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types.MakeDatums(1, int64(math.MinInt64), nil),
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types.MakeDatums(1, nil, uint64(math.MaxUint64)),
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1,
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},
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{
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types.MakeDatums(1, []byte{}, nil),
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types.MakeDatums(1, nil, 123),
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1,
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},
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{
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types.MakeDatums(parseTime(c, "2011-11-11 00:00:00"), 1),
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types.MakeDatums(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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types.MakeDatums(parseDuration(c, "00:00:00"), 1),
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types.MakeDatums(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(nil, t.Left...)
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c.Assert(err, IsNil)
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b2, err := EncodeKey(nil, t.Right...)
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c.Assert(err, IsNil)
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c.Assert(bytes.Compare(b1, b2), Equals, t.Expect, Commentf("%v - %v - %v - %v - %v", t.Left, t.Right, b1, b2, t.Expect))
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}
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}
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func (s *testCodecSuite) TestNumberCodec(c *C) {
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defer testleak.AfterTest(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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b = EncodeVarint(nil, t)
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_, v, err = DecodeVarint(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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b = EncodeComparableVarint(nil, t)
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_, v, err = DecodeComparableVarint(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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b = EncodeUvarint(nil, t)
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_, v, err = DecodeUvarint(b)
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c.Assert(err, IsNil)
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c.Assert(v, Equals, t)
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b = EncodeComparableUvarint(nil, t)
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_, v, err = DecodeComparableUvarint(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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var b []byte
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b = EncodeComparableVarint(b, -1)
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b = EncodeComparableUvarint(b, 1)
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b = EncodeComparableVarint(b, 2)
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b, i, err := DecodeComparableVarint(b)
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c.Assert(err, IsNil)
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c.Assert(i, Equals, int64(-1))
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b, u, err := DecodeComparableUvarint(b)
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c.Assert(err, IsNil)
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c.Assert(u, Equals, uint64(1))
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b, i, err = DecodeComparableVarint(b)
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c.Assert(err, IsNil)
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c.Assert(i, Equals, int64(2))
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}
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func (s *testCodecSuite) TestNumberOrder(c *C) {
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defer testleak.AfterTest(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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b1 = EncodeComparableVarint(nil, t.Arg1)
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b2 = EncodeComparableVarint(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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b1 = EncodeComparableUvarint(nil, t.Arg1)
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b2 = EncodeComparableUvarint(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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defer testleak.AfterTest(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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math.Inf(-1),
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math.Inf(1),
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}
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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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{math.Inf(-1), 0, -1},
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{math.Inf(1), 0, 1},
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{math.Inf(-1), math.Inf(1), -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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defer testleak.AfterTest(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, Commentf("%v - %v - %v", t, b, v))
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|
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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, Commentf("%v - %v - %v", t, b, v))
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|
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b = EncodeCompactBytes(nil, t)
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_, v, err = DecodeCompactBytes(b)
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c.Assert(err, IsNil)
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c.Assert(t, DeepEquals, v, Commentf("%v - %v - %v", t, b, 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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}{
|
|
{[]byte{}, []byte{0x00}, -1},
|
|
{[]byte{0x00}, []byte{0x00}, 0},
|
|
{[]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},
|
|
{[]byte{0x00}, []byte{0x01}, -1},
|
|
{[]byte{0x00, 0x01}, []byte{0x00, 0x00}, 1},
|
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{[]byte{0x00, 0x00, 0x00}, []byte{0x00, 0x00}, 1},
|
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{[]byte{0x00, 0x00, 0x00}, []byte{0x00, 0x00}, 1},
|
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{[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, -1},
|
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{[]byte{0x01, 0x02, 0x03, 0x00}, []byte{0x01, 0x02, 0x03}, 1},
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{[]byte{0x01, 0x03, 0x03, 0x04}, []byte{0x01, 0x03, 0x03, 0x05}, -1},
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{[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}, []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}, -1},
|
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{[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09}, []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}, 1},
|
|
{[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x00}, []byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}, 1},
|
|
}
|
|
|
|
for _, t := range tblCmp {
|
|
b1 := EncodeBytes(nil, t.Arg1)
|
|
b2 := EncodeBytes(nil, t.Arg2)
|
|
|
|
ret := bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, t.Ret)
|
|
|
|
b1 = EncodeBytesDesc(nil, t.Arg1)
|
|
b2 = EncodeBytesDesc(nil, t.Arg2)
|
|
|
|
ret = bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, -t.Ret)
|
|
}
|
|
}
|
|
|
|
func parseTime(c *C, s string) types.Time {
|
|
m, err := types.ParseTime(s, mysql.TypeDatetime, types.DefaultFsp)
|
|
c.Assert(err, IsNil)
|
|
return m
|
|
}
|
|
|
|
func parseDuration(c *C, s string) types.Duration {
|
|
m, err := types.ParseDuration(s, types.DefaultFsp)
|
|
c.Assert(err, IsNil)
|
|
return m
|
|
}
|
|
|
|
func (s *testCodecSuite) TestTime(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
tbl := []string{
|
|
"2011-01-01 00:00:00",
|
|
"2011-01-01 00:00:00",
|
|
"0001-01-01 00:00:00",
|
|
}
|
|
|
|
for _, t := range tbl {
|
|
m := types.NewDatum(parseTime(c, t))
|
|
|
|
b, err := EncodeKey(nil, m)
|
|
c.Assert(err, IsNil)
|
|
v, err := Decode(b, 1)
|
|
c.Assert(err, IsNil)
|
|
var t types.Time
|
|
t.Type = mysql.TypeDatetime
|
|
t.FromPackedUint(v[0].GetUint64())
|
|
c.Assert(types.NewDatum(t), DeepEquals, m)
|
|
}
|
|
|
|
tblCmp := []struct {
|
|
Arg1 string
|
|
Arg2 string
|
|
Ret int
|
|
}{
|
|
{"2011-10-10 00:00:00", "2000-12-12 11:11:11", 1},
|
|
{"2000-10-10 00:00:00", "2001-10-10 00:00:00", -1},
|
|
{"2000-10-10 00:00:00", "2000-10-10 00:00:00", 0},
|
|
}
|
|
|
|
for _, t := range tblCmp {
|
|
m1 := types.NewDatum(parseTime(c, t.Arg1))
|
|
m2 := types.NewDatum(parseTime(c, t.Arg2))
|
|
|
|
b1, err := EncodeKey(nil, m1)
|
|
c.Assert(err, IsNil)
|
|
b2, err := EncodeKey(nil, m2)
|
|
c.Assert(err, IsNil)
|
|
|
|
ret := bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, t.Ret)
|
|
}
|
|
}
|
|
|
|
func (s *testCodecSuite) TestDuration(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
tbl := []string{
|
|
"11:11:11",
|
|
"00:00:00",
|
|
"1 11:11:11",
|
|
}
|
|
|
|
for _, t := range tbl {
|
|
m := parseDuration(c, t)
|
|
|
|
b, err := EncodeKey(nil, types.NewDatum(m))
|
|
c.Assert(err, IsNil)
|
|
v, err := Decode(b, 1)
|
|
c.Assert(err, IsNil)
|
|
m.Fsp = types.MaxFsp
|
|
c.Assert(v, DeepEquals, types.MakeDatums(m))
|
|
}
|
|
|
|
tblCmp := []struct {
|
|
Arg1 string
|
|
Arg2 string
|
|
Ret int
|
|
}{
|
|
{"20:00:00", "11:11:11", 1},
|
|
{"00:00:00", "00:00:01", -1},
|
|
{"00:00:00", "00:00:00", 0},
|
|
}
|
|
|
|
for _, t := range tblCmp {
|
|
m1 := parseDuration(c, t.Arg1)
|
|
m2 := parseDuration(c, t.Arg2)
|
|
|
|
b1, err := EncodeKey(nil, types.NewDatum(m1))
|
|
c.Assert(err, IsNil)
|
|
b2, err := EncodeKey(nil, types.NewDatum(m2))
|
|
c.Assert(err, IsNil)
|
|
|
|
ret := bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, t.Ret)
|
|
}
|
|
}
|
|
|
|
func (s *testCodecSuite) TestDecimal(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
tbl := []string{
|
|
"1234.00",
|
|
"1234",
|
|
"12.34",
|
|
"12.340",
|
|
"0.1234",
|
|
"0.0",
|
|
"0",
|
|
"-0.0",
|
|
"-0.0000",
|
|
"-1234.00",
|
|
"-1234",
|
|
"-12.34",
|
|
"-12.340",
|
|
"-0.1234",
|
|
}
|
|
|
|
for _, t := range tbl {
|
|
dec := new(types.MyDecimal)
|
|
err := dec.FromString([]byte(t))
|
|
c.Assert(err, IsNil)
|
|
b, err := EncodeKey(nil, types.NewDatum(dec))
|
|
c.Assert(err, IsNil)
|
|
v, err := Decode(b, 1)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(v, HasLen, 1)
|
|
vv := v[0].GetMysqlDecimal()
|
|
c.Assert(vv.Compare(dec), Equals, 0)
|
|
}
|
|
|
|
tblCmp := []struct {
|
|
Arg1 interface{}
|
|
Arg2 interface{}
|
|
Ret int
|
|
}{
|
|
// Test for float type decimal.
|
|
{"1234", "123400", -1},
|
|
{"12340", "123400", -1},
|
|
{"1234", "1234.5", -1},
|
|
{"1234", "1234.0000", 0},
|
|
{"1234", "12.34", 1},
|
|
{"12.34", "12.35", -1},
|
|
{"0.12", "0.1234", -1},
|
|
{"0.1234", "12.3400", -1},
|
|
{"0.1234", "0.1235", -1},
|
|
{"0.123400", "12.34", -1},
|
|
{"12.34000", "12.34", 0},
|
|
{"0.01234", "0.01235", -1},
|
|
{"0.1234", "0", 1},
|
|
{"0.0000", "0", 0},
|
|
{"0.0001", "0", 1},
|
|
{"0.0001", "0.0000", 1},
|
|
{"0", "-0.0000", 0},
|
|
{"-0.0001", "0", -1},
|
|
{"-0.1234", "0", -1},
|
|
{"-0.1234", "-0.12", -1},
|
|
{"-0.12", "-0.1234", 1},
|
|
{"-0.12", "-0.1200", 0},
|
|
{"-0.1234", "0.1234", -1},
|
|
{"-1.234", "-12.34", 1},
|
|
{"-0.1234", "-12.34", 1},
|
|
{"-12.34", "1234", -1},
|
|
{"-12.34", "-12.35", 1},
|
|
{"-0.01234", "-0.01235", 1},
|
|
{"-1234", "-123400", 1},
|
|
{"-12340", "-123400", 1},
|
|
|
|
// Test for int type decimal.
|
|
{int64(-1), int64(1), -1},
|
|
{int64(math.MaxInt64), int64(math.MinInt64), 1},
|
|
{int64(math.MaxInt64), int64(math.MaxInt32), 1},
|
|
{int64(math.MinInt32), int64(math.MaxInt16), -1},
|
|
{int64(math.MinInt64), int64(math.MaxInt8), -1},
|
|
{int64(0), int64(math.MaxInt8), -1},
|
|
{int64(math.MinInt8), int64(0), -1},
|
|
{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},
|
|
}
|
|
sc := new(variable.StatementContext)
|
|
for _, t := range tblCmp {
|
|
d1 := types.NewDatum(t.Arg1)
|
|
dec1, err := d1.ToDecimal(sc)
|
|
c.Assert(err, IsNil)
|
|
d1.SetMysqlDecimal(dec1)
|
|
d2 := types.NewDatum(t.Arg2)
|
|
dec2, err := d2.ToDecimal(sc)
|
|
c.Assert(err, IsNil)
|
|
d2.SetMysqlDecimal(dec2)
|
|
|
|
d1.SetLength(30)
|
|
d1.SetFrac(6)
|
|
d2.SetLength(30)
|
|
d2.SetFrac(6)
|
|
b1, err := EncodeKey(nil, d1)
|
|
c.Assert(err, IsNil)
|
|
b2, err := EncodeKey(nil, d2)
|
|
c.Assert(err, IsNil)
|
|
|
|
ret := bytes.Compare(b1, b2)
|
|
c.Assert(ret, Equals, t.Ret, Commentf("%v %x %x", t, b1, b2))
|
|
}
|
|
|
|
floats := []float64{-123.45, -123.40, -23.45, -1.43, -0.93, -0.4333, -0.068,
|
|
-0.0099, 0, 0.001, 0.0012, 0.12, 1.2, 1.23, 123.3, 2424.242424}
|
|
var decs [][]byte
|
|
for i := range floats {
|
|
dec := types.NewDecFromFloatForTest(floats[i])
|
|
var d types.Datum
|
|
d.SetLength(20)
|
|
d.SetFrac(6)
|
|
d.SetMysqlDecimal(dec)
|
|
decs = append(decs, EncodeDecimal(nil, d))
|
|
}
|
|
for i := 0; i < len(decs)-1; i++ {
|
|
cmp := bytes.Compare(decs[i], decs[i+1])
|
|
c.Assert(cmp, LessEqual, 0)
|
|
}
|
|
}
|
|
|
|
func (s *testCodecSuite) TestCut(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
table := []struct {
|
|
Input []types.Datum
|
|
Expect []types.Datum
|
|
}{
|
|
{
|
|
types.MakeDatums(int64(1)),
|
|
types.MakeDatums(int64(1)),
|
|
},
|
|
|
|
{
|
|
types.MakeDatums(float32(1), float64(3.15), []byte("123"), "123"),
|
|
types.MakeDatums(float64(1), float64(3.15), []byte("123"), []byte("123")),
|
|
},
|
|
{
|
|
types.MakeDatums(uint64(1), float64(3.15), []byte("123"), int64(-1)),
|
|
types.MakeDatums(uint64(1), float64(3.15), []byte("123"), int64(-1)),
|
|
},
|
|
|
|
{
|
|
types.MakeDatums(true, false),
|
|
types.MakeDatums(int64(1), int64(0)),
|
|
},
|
|
|
|
{
|
|
types.MakeDatums(nil),
|
|
types.MakeDatums(nil),
|
|
},
|
|
|
|
{
|
|
types.MakeDatums(types.Hex{Value: 100}, types.Bit{Value: 100, Width: 8}),
|
|
types.MakeDatums(int64(100), uint64(100)),
|
|
},
|
|
|
|
{
|
|
types.MakeDatums(types.Enum{Name: "a", Value: 1}, types.Set{Name: "a", Value: 1}),
|
|
types.MakeDatums(uint64(1), uint64(1)),
|
|
},
|
|
{
|
|
types.MakeDatums(float32(1), float64(3.15), []byte("123456789012345")),
|
|
types.MakeDatums(float64(1), float64(3.15), []byte("123456789012345")),
|
|
},
|
|
{
|
|
types.MakeDatums(types.NewDecFromInt(0), types.NewDecFromFloatForTest(-1.3)),
|
|
types.MakeDatums(types.NewDecFromInt(0), types.NewDecFromFloatForTest(-1.3)),
|
|
},
|
|
}
|
|
for i, t := range table {
|
|
comment := Commentf("%d %v", i, t)
|
|
b, err := EncodeKey(nil, t.Input...)
|
|
c.Assert(err, IsNil, comment)
|
|
var d []byte
|
|
for j, e := range t.Expect {
|
|
d, b, err = CutOne(b)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(d, NotNil)
|
|
ed, err1 := EncodeKey(nil, e)
|
|
c.Assert(err1, IsNil)
|
|
c.Assert(d, DeepEquals, ed, Commentf("%d:%d %#v", i, j, e))
|
|
}
|
|
c.Assert(b, HasLen, 0)
|
|
}
|
|
for i, t := range table {
|
|
comment := Commentf("%d %v", i, t)
|
|
b, err := EncodeValue(nil, t.Input...)
|
|
c.Assert(err, IsNil, comment)
|
|
var d []byte
|
|
for j, e := range t.Expect {
|
|
d, b, err = CutOne(b)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(d, NotNil)
|
|
ed, err1 := EncodeValue(nil, e)
|
|
c.Assert(err1, IsNil)
|
|
c.Assert(d, DeepEquals, ed, Commentf("%d:%d %#v", i, j, e))
|
|
}
|
|
c.Assert(b, HasLen, 0)
|
|
}
|
|
}
|