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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mypackagebeingfuzzed
import (
"io/ioutil"
"os"
"runtime/pprof"
"testing"
)
func TestFuzzCorpus(t *testing.T) {
dir := os.Getenv("FUZZ_CORPUS_DIR")
if dir == "" {
t.Logf("No fuzzing corpus directory set")
return
}
infos, err := ioutil.ReadDir(dir)
if err != nil {
t.Logf("Not fuzzing corpus directory %s", err)
return
}
filename := ""
defer func() {
if r := recover(); r != nil {
t.Error("Fuzz panicked in "+filename, r)
}
}()
profname := os.Getenv("FUZZ_PROFILE_NAME")
if profname != "" {
f, err := os.Create(profname + ".cpu.prof")
if err != nil {
t.Logf("error creating profile file %s\n", err)
} else {
_ = pprof.StartCPUProfile(f)
}
}
for i := range infos {
filename = dir + infos[i].Name()
data, err := ioutil.ReadFile(filename)
if err != nil {
t.Error("Failed to read corpus file", err)
}
FuzzFunction(data)
}
if profname != "" {
pprof.StopCPUProfile()
f, err := os.Create(profname + ".heap.prof")
if err != nil {
t.Logf("error creating heap profile file %s\n", err)
}
if err = pprof.WriteHeapProfile(f); err != nil {
t.Logf("error writing heap profile file %s\n", err)
}
f.Close()
}
}
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