94 lines
2.6 KiB
Go
94 lines
2.6 KiB
Go
// Copyright 2021 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 executor
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import (
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"testing"
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"github.com/pingcap/tidb/expression"
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"github.com/pingcap/tidb/parser/mysql"
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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/mock"
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"github.com/stretchr/testify/require"
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)
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func TestVecGroupChecker(t *testing.T) {
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tp := types.NewFieldTypeBuilder().SetType(mysql.TypeVarchar).BuildP()
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col0 := &expression.Column{
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RetType: tp,
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Index: 0,
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}
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ctx := mock.NewContext()
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groupChecker := newVecGroupChecker(ctx, []expression.Expression{col0})
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chk := chunk.New([]*types.FieldType{tp}, 6, 6)
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chk.Reset()
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chk.Column(0).AppendString("aaa")
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chk.Column(0).AppendString("AAA")
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chk.Column(0).AppendString("😜")
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chk.Column(0).AppendString("😃")
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chk.Column(0).AppendString("À")
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chk.Column(0).AppendString("A")
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tp.SetCollate("bin")
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groupChecker.reset()
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_, err := groupChecker.splitIntoGroups(chk)
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require.NoError(t, err)
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for i := 0; i < 6; i++ {
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b, e := groupChecker.getNextGroup()
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require.Equal(t, b, i)
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require.Equal(t, e, i+1)
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}
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require.True(t, groupChecker.isExhausted())
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tp.SetCollate("utf8_general_ci")
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groupChecker.reset()
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_, err = groupChecker.splitIntoGroups(chk)
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require.NoError(t, err)
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for i := 0; i < 3; i++ {
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b, e := groupChecker.getNextGroup()
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require.Equal(t, b, i*2)
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require.Equal(t, e, i*2+2)
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}
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require.True(t, groupChecker.isExhausted())
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tp.SetCollate("utf8_unicode_ci")
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groupChecker.reset()
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_, err = groupChecker.splitIntoGroups(chk)
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require.NoError(t, err)
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for i := 0; i < 3; i++ {
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b, e := groupChecker.getNextGroup()
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require.Equal(t, b, i*2)
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require.Equal(t, e, i*2+2)
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}
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require.True(t, groupChecker.isExhausted())
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// test padding
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tp.SetCollate("utf8_bin")
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tp.SetFlen(6)
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chk.Reset()
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chk.Column(0).AppendString("a")
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chk.Column(0).AppendString("a ")
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chk.Column(0).AppendString("a ")
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groupChecker.reset()
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_, err = groupChecker.splitIntoGroups(chk)
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require.NoError(t, err)
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b, e := groupChecker.getNextGroup()
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require.Equal(t, b, 0)
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require.Equal(t, e, 3)
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require.True(t, groupChecker.isExhausted())
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}
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