293 lines
6.7 KiB
Go
293 lines
6.7 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 server
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import (
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/domain"
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"github.com/pingcap/tidb/kv"
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"github.com/pingcap/tidb/mysql"
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"github.com/pingcap/tidb/session"
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"github.com/pingcap/tidb/store/mockstore"
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"github.com/pingcap/tidb/types"
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"github.com/pingcap/tidb/util/chunk"
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"github.com/pingcap/tidb/util/testleak"
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"github.com/pkg/errors"
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)
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var _ = Suite(&testUtilSuite{})
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func newStoreWithBootstrap() (kv.Storage, *domain.Domain, error) {
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store, err := mockstore.NewMockTikvStore()
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if err != nil {
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return nil, nil, errors.Trace(err)
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}
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session.SetSchemaLease(0)
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dom, err := session.BootstrapSession(store)
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return store, dom, errors.Trace(err)
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}
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type testUtilSuite struct {
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store kv.Storage
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dom *domain.Domain
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}
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func (s *testUtilSuite) SetUpSuite(c *C) {
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testleak.BeforeTest()
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var err error
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s.store, s.dom, err = newStoreWithBootstrap()
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c.Assert(err, IsNil)
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}
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func (s *testUtilSuite) TearDownSuite(c *C) {
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s.dom.Close()
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s.store.Close()
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testleak.AfterTest(c)()
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}
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func (s *testUtilSuite) TestDumpBinaryTime(c *C) {
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t, err := types.ParseTimestamp(nil, "0000-00-00 00:00:00.0000000")
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c.Assert(err, IsNil)
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d, err := dumpBinaryDateTime(nil, t, nil)
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c.Assert(err, IsNil)
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c.Assert(d, DeepEquals, []byte{11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
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t, err = types.ParseDatetime(nil, "0000-00-00 00:00:00.0000000")
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c.Assert(err, IsNil)
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d, err = dumpBinaryDateTime(nil, t, nil)
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c.Assert(err, IsNil)
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c.Assert(d, DeepEquals, []byte{11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
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t, err = types.ParseDate(nil, "0000-00-00")
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c.Assert(err, IsNil)
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d, err = dumpBinaryDateTime(nil, t, nil)
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c.Assert(err, IsNil)
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c.Assert(d, DeepEquals, []byte{4, 0, 0, 0, 0})
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myDuration, err := types.ParseDuration(nil, "0000-00-00 00:00:00.0000000", 6)
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c.Assert(err, IsNil)
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d = dumpBinaryTime(myDuration.Duration)
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c.Assert(d, DeepEquals, []byte{0})
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}
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func (s *testUtilSuite) TestDumpTextValue(c *C) {
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columns := []*ColumnInfo{{
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Type: mysql.TypeLonglong,
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Decimal: mysql.NotFixedDec,
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}}
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bs, err := dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{types.NewIntDatum(10)}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "10")
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{types.NewUintDatum(11)}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "11")
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columns[0].Type = mysql.TypeFloat
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columns[0].Decimal = 1
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f32 := types.NewFloat32Datum(1.2)
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{f32}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "1.2")
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columns[0].Decimal = 2
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{f32}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "1.20")
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f64 := types.NewFloat64Datum(2.2)
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columns[0].Type = mysql.TypeDouble
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columns[0].Decimal = 1
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{f64}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "2.2")
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columns[0].Decimal = 2
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{f64}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "2.20")
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columns[0].Type = mysql.TypeBlob
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{types.NewBytesDatum([]byte("foo"))}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "foo")
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columns[0].Type = mysql.TypeVarchar
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{types.NewStringDatum("bar")}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "bar")
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var d types.Datum
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time, err := types.ParseTime(nil, "2017-01-05 23:59:59.575601", mysql.TypeDatetime, 0)
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c.Assert(err, IsNil)
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d.SetMysqlTime(time)
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columns[0].Type = mysql.TypeDatetime
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{d}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "2017-01-06 00:00:00")
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duration, err := types.ParseDuration(nil, "11:30:45", 0)
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c.Assert(err, IsNil)
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d.SetMysqlDuration(duration)
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columns[0].Type = mysql.TypeDuration
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columns[0].Decimal = 0
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{d}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "11:30:45")
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d.SetMysqlDecimal(types.NewDecFromStringForTest("1.23"))
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columns[0].Type = mysql.TypeNewDecimal
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bs, err = dumpTextRow(nil, columns, chunk.MutRowFromDatums([]types.Datum{d}).ToRow())
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c.Assert(err, IsNil)
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c.Assert(mustDecodeStr(c, bs), Equals, "1.23")
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}
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func mustDecodeStr(c *C, b []byte) string {
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str, _, _, err := parseLengthEncodedBytes(b)
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c.Assert(err, IsNil)
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return string(str)
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}
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func (s *testUtilSuite) TestAppendFormatFloat(c *C) {
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tests := []struct {
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fVal float64
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out string
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prec int
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bitSize int
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}{
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{
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99999999999999999999,
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"1e20",
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-1,
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64,
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},
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{
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1e15,
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"1e15",
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-1,
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64,
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},
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{
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9e14,
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"900000000000000",
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-1,
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64,
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},
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{
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-9999999999999999,
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"-1e16",
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-1,
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64,
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},
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{
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999999999999999,
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"999999999999999",
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-1,
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64,
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},
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{
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0.000000000000001,
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"0.000000000000001",
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-1,
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64,
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},
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{
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0.0000000000000009,
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"9e-16",
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-1,
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64,
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},
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{
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-0.0000000000000009,
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"-9e-16",
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-1,
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64,
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},
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{
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0.11111,
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"0.111",
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3,
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64,
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},
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{
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0.11111,
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"0.111",
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3,
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64,
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},
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{
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0.1111111111111111111,
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"0.11111111",
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-1,
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32,
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},
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{
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0.1111111111111111111,
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"0.1111111111111111",
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-1,
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64,
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},
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{
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0.0000000000000009,
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"0.000",
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3,
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64,
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},
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{
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0,
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"0",
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-1,
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64,
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},
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}
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for _, t := range tests {
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c.Assert(string(appendFormatFloat(nil, t.fVal, t.prec, t.bitSize)), Equals, t.out)
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}
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}
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func (s *testUtilSuite) TestParseNullTermString(c *C) {
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for _, t := range []struct {
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input string
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str string
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remain string
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}{
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{
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"abc\x00def",
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"abc",
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"def",
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},
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{
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"\x00def",
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"",
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"def",
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},
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{
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"def\x00hig\x00k",
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"def",
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"hig\x00k",
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},
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{
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"abcdef",
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"",
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"abcdef",
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},
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} {
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str, remain := parseNullTermString([]byte(t.input))
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c.Assert(string(str), Equals, t.str)
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c.Assert(string(remain), Equals, t.remain)
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}
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}
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