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// Copyright 2015 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package ipc
import (
"math/rand"
"os"
"testing"
"time"
"github.com/google/syzkaller/csource"
"github.com/google/syzkaller/fileutil"
"github.com/google/syzkaller/prog"
)
const timeout = 10 * time.Second
func buildExecutor(t *testing.T) string {
return buildProgram(t, "../executor/executor.cc")
}
func buildSource(t *testing.T, src []byte) string {
tmp, err := fileutil.WriteTempFile(src)
if err != nil {
t.Fatalf("%v", err)
}
defer os.Remove(tmp)
return buildProgram(t, tmp)
}
func buildProgram(t *testing.T, src string) string {
bin, err := csource.Build("c++", src)
if err != nil {
t.Fatalf("%v", err)
}
return bin
}
func initTest(t *testing.T) (rand.Source, int) {
iters := 100
if testing.Short() {
iters = 10
}
seed := int64(time.Now().UnixNano())
rs := rand.NewSource(seed)
t.Logf("seed=%v", seed)
return rs, iters
}
func TestEmptyProg(t *testing.T) {
bin := buildExecutor(t)
defer os.Remove(bin)
env, err := MakeEnv(bin, timeout, 0, 0)
if err != nil {
t.Fatalf("failed to create env: %v", err)
}
defer env.Close()
p := new(prog.Prog)
output, _, failed, hanged, err := env.Exec(p, false, false)
if err != nil {
t.Fatalf("failed to run executor: %v", err)
}
if len(output) != 0 {
t.Fatalf("output on empty program")
}
if failed || hanged {
t.Fatalf("empty program failed")
}
}
func TestExecute(t *testing.T) {
bin := buildExecutor(t)
defer os.Remove(bin)
rs, iters := initTest(t)
flags := []uint64{0, FlagThreaded, FlagThreaded | FlagCollide}
for _, flag := range flags {
t.Logf("testing flags 0x%x\n", flag)
env, err := MakeEnv(bin, timeout, flag, 0)
if err != nil {
t.Fatalf("failed to create env: %v", err)
}
defer env.Close()
for i := 0; i < iters/len(flags); i++ {
p := prog.Generate(rs, 10, nil)
output, _, _, _, err := env.Exec(p, false, false)
if err != nil {
t.Logf("program:\n%s\n", p.Serialize())
t.Fatalf("failed to run executor: %v\n%s", err, output)
}
}
}
}
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