84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
// Copyright 2018 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 chunk
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import (
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"reflect"
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"testing"
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"github.com/pingcap/tidb/types"
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)
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func getChk() (*Chunk, *Chunk, []bool) {
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numRows := 1024
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srcChk := newChunkWithInitCap(numRows, 0, 0, 8, 8, sizeTime, 0)
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selected := make([]bool, numRows)
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var row Row
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for j := 0; j < numRows; j++ {
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if j%7 == 0 {
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row = MutRowFromValues("abc", "abcdefg", nil, 123, types.ZeroDatetime, "abcdefg").ToRow()
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} else {
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row = MutRowFromValues("abc", "abcdefg", j, 123, types.ZeroDatetime, "abcdefg").ToRow()
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selected[j] = true
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}
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srcChk.AppendPartialRow(0, row)
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}
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dstChk := newChunkWithInitCap(numRows, 0, 0, 8, 8, sizeTime, 0)
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return srcChk, dstChk, selected
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}
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func TestCopySelectedJoinRows(t *testing.T) {
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srcChk, dstChk, selected := getChk()
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numRows := srcChk.NumRows()
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for i := 0; i < numRows; i++ {
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if !selected[i] {
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continue
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}
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dstChk.AppendRow(srcChk.GetRow(i))
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}
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// batch copy
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dstChk2 := newChunkWithInitCap(numRows, 0, 0, 8, 8, sizeTime, 0)
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CopySelectedJoinRows(srcChk, 0, 3, selected, dstChk2)
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if !reflect.DeepEqual(dstChk, dstChk2) {
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t.Fatal()
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}
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}
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func BenchmarkCopySelectedJoinRows(b *testing.B) {
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b.ReportAllocs()
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srcChk, dstChk, selected := getChk()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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dstChk.Reset()
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CopySelectedJoinRows(srcChk, 0, 3, selected, dstChk)
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}
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}
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func BenchmarkAppendSelectedRow(b *testing.B) {
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b.ReportAllocs()
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srcChk, dstChk, selected := getChk()
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numRows := srcChk.NumRows()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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dstChk.Reset()
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for j := 0; j < numRows; j++ {
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if !selected[j] {
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continue
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}
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dstChk.AppendRow(srcChk.GetRow(j))
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}
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}
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}
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