1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package multierr
import (
"errors"
"fmt"
"testing"
)
func BenchmarkAppend(b *testing.B) {
errorTypes := []struct {
name string
err error
}{
{
name: "nil",
err: nil,
},
{
name: "single error",
err: errors.New("test"),
},
{
name: "multiple errors",
err: appendN(nil, errors.New("err"), 10),
},
}
for _, initial := range errorTypes {
for _, v := range errorTypes {
msg := fmt.Sprintf("append %v to %v", v.name, initial.name)
b.Run(msg, func(b *testing.B) {
for _, appends := range []int{1, 2, 10} {
b.Run(fmt.Sprint(appends), func(b *testing.B) {
for i := 0; i < b.N; i++ {
appendN(initial.err, v.err, appends)
}
})
}
})
}
}
}
func BenchmarkCombine(b *testing.B) {
b.Run("inline 1", func(b *testing.B) {
var x error
for i := 0; i < b.N; i++ {
Combine(x)
}
})
b.Run("inline 2", func(b *testing.B) {
var x, y error
for i := 0; i < b.N; i++ {
Combine(x, y)
}
})
b.Run("inline 3 no error", func(b *testing.B) {
var x, y, z error
for i := 0; i < b.N; i++ {
Combine(x, y, z)
}
})
b.Run("inline 3 one error", func(b *testing.B) {
var x, y, z error
z = fmt.Errorf("failed")
for i := 0; i < b.N; i++ {
Combine(x, y, z)
}
})
b.Run("inline 3 multiple errors", func(b *testing.B) {
var x, y, z error
z = fmt.Errorf("failed3")
y = fmt.Errorf("failed2")
x = fmt.Errorf("failed")
for i := 0; i < b.N; i++ {
Combine(x, y, z)
}
})
b.Run("slice 100 no errors", func(b *testing.B) {
errs := make([]error, 100)
for i := 0; i < b.N; i++ {
Combine(errs...)
}
})
b.Run("slice 100 one error", func(b *testing.B) {
errs := make([]error, 100)
errs[len(errs)-1] = fmt.Errorf("failed")
for i := 0; i < b.N; i++ {
Combine(errs...)
}
})
b.Run("slice 100 multi error", func(b *testing.B) {
errs := make([]error, 100)
errs[0] = fmt.Errorf("failed1")
errs[len(errs)-1] = fmt.Errorf("failed2")
for i := 0; i < b.N; i++ {
Combine(errs...)
}
})
}
|
