Software: Apache. PHP/5.4.45 

uname -a: Linux webm056.cluster010.gra.hosting.ovh.net 5.15.167-ovh-vps-grsec-zfs-classid #1 SMP Tue
Sep 17 08:14:20 UTC 2024 x86_64 

uid=243112(mycochar) gid=100(users) groups=100(users)  

Safe-mode: OFF (not secure)

/home/mycochar/www/image/photo/go/src/cmd/go/testdata/script/   drwxr-xr-x
Free 0 B of 0 B (0%)
Your ip: 216.73.216.77 - Server ip: 213.186.33.19
                            

Viewing file:     test_fuzz_cache.txt (1.93 KB)      -rw-r--r--

[!fuzz-instrumented] skip

[short] skip
env GOCACHE=$WORK/cache

# Fuzz cache should not exist after a regular test run.
go test .
exists $GOCACHE
! exists $GOCACHE/fuzz

# Fuzzing should write interesting values to the cache.
go test -fuzz=FuzzY -fuzztime=100x .
go run ./contains_files $GOCACHE/fuzz/example.com/y/FuzzY

# 'go clean -cache' should not delete the fuzz cache.
go clean -cache
exists $GOCACHE/fuzz

# 'go clean -fuzzcache' should delete the fuzz cache but not the build cache.
go build -x ./empty
stderr '(compile|gccgo)( |\.exe).*empty.go'
go clean -fuzzcache
! exists $GOCACHE/fuzz
go build -x ./empty
! stderr '(compile|gccgo)( |\.exe).*empty.go'

# Fuzzing indicates that one new interesting value was found with an empty
# corpus, and the total size of the cache is now 1.
go clean -fuzzcache
go test -fuzz=FuzzEmpty -fuzztime=10000x .
stdout 'new interesting: 1'
stdout 'total: 1'

# Fuzzing again with a small fuzztime does not find any other interesting
# values but still indicates that the cache size is 1.
go test -fuzz=FuzzEmpty -fuzztime=2x .
stdout 'new interesting: 0'
stdout 'total: 1'

! go clean -fuzzcache example.com/y
stderr 'go: clean -fuzzcache cannot be used with package arguments'

-- go.mod --
module example.com/y

go 1.16
-- y_test.go --
package y

import (
	"io"
	"testing"
)

func FuzzEmpty(f *testing.F) {
    f.Fuzz(func (*testing.T, []byte) {})
}

func FuzzY(f *testing.F) {
	f.Add([]byte("y"))
	f.Fuzz(func(t *testing.T, b []byte) { Y(io.Discard, b) })
}
-- y.go --
package y

import (
	"bytes"
	"io"
)

func Y(w io.Writer, b []byte) {
	if !bytes.Equal(b, []byte("y")) {
		w.Write([]byte("not equal"))
	}
}
-- empty/empty.go --
package empty
-- contains_files/contains_files.go --
package main

import (
	"fmt"
	"path/filepath"
	"io/ioutil"
	"os"
)

func main() {
	infos, err := ioutil.ReadDir(filepath.Clean(os.Args[1]))
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	if len(infos) == 0 {
		os.Exit(1)
	}
}