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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package fuzz
import (
"fmt"
"os"
"strconv"
"testing"
)
func BenchmarkMutatorBytes(b *testing.B) {
origEnv := os.Getenv("GODEBUG")
defer func() { os.Setenv("GODEBUG", origEnv) }()
os.Setenv("GODEBUG", fmt.Sprintf("%s,fuzzseed=123", origEnv))
m := newMutator()
for _, size := range []int{
1,
10,
100,
1000,
10000,
100000,
} {
b.Run(strconv.Itoa(size), func(b *testing.B) {
buf := make([]byte, size)
b.ResetTimer()
for i := 0; i < b.N; i++ {
// resize buffer to the correct shape and reset the PCG
buf = buf[0:size]
m.r = newPcgRand()
m.mutate([]interface{}{buf}, workerSharedMemSize)
}
})
}
}
func BenchmarkMutatorString(b *testing.B) {
origEnv := os.Getenv("GODEBUG")
defer func() { os.Setenv("GODEBUG", origEnv) }()
os.Setenv("GODEBUG", fmt.Sprintf("%s,fuzzseed=123", origEnv))
m := newMutator()
for _, size := range []int{
1,
10,
100,
1000,
10000,
100000,
} {
b.Run(strconv.Itoa(size), func(b *testing.B) {
buf := make([]byte, size)
b.ResetTimer()
for i := 0; i < b.N; i++ {
// resize buffer to the correct shape and reset the PCG
buf = buf[0:size]
m.r = newPcgRand()
m.mutate([]interface{}{string(buf)}, workerSharedMemSize)
}
})
}
}
func BenchmarkMutatorAllBasicTypes(b *testing.B) {
origEnv := os.Getenv("GODEBUG")
defer func() { os.Setenv("GODEBUG", origEnv) }()
os.Setenv("GODEBUG", fmt.Sprintf("%s,fuzzseed=123", origEnv))
m := newMutator()
types := []interface{}{
[]byte(""),
string(""),
false,
float32(0),
float64(0),
int(0),
int8(0),
int16(0),
int32(0),
int64(0),
uint8(0),
uint16(0),
uint32(0),
uint64(0),
}
for _, t := range types {
b.Run(fmt.Sprintf("%T", t), func(b *testing.B) {
for i := 0; i < b.N; i++ {
m.r = newPcgRand()
m.mutate([]interface{}{t}, workerSharedMemSize)
}
})
}
}
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