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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 (
"fmt"
"math/rand"
"os"
"path/filepath"
"runtime"
"testing"
"time"
"github.com/google/syzkaller/pkg/csource"
"github.com/google/syzkaller/prog"
_ "github.com/google/syzkaller/sys"
)
const timeout = 10 * time.Second
func buildExecutor(t *testing.T, target *prog.Target) string {
src := fmt.Sprintf("../../executor/executor_%v.cc", target.OS)
return buildProgram(t, target, filepath.FromSlash(src))
}
func buildProgram(t *testing.T, target *prog.Target, src string) string {
bin, err := csource.Build(target, "c++", src)
if err != nil {
t.Fatalf("%v", err)
}
return bin
}
func initTest(t *testing.T) (*prog.Target, rand.Source, int, EnvFlags) {
t.Parallel()
iters := 100
if testing.Short() {
iters = 10
}
seed := int64(time.Now().UnixNano())
rs := rand.NewSource(seed)
t.Logf("seed=%v", seed)
target, err := prog.GetTarget(runtime.GOOS, runtime.GOARCH)
if err != nil {
t.Fatal(err)
}
cfg, _, err := DefaultConfig()
if err != nil {
t.Fatal(err)
}
flags := cfg.Flags & (FlagUseShmem | FlagUseForkServer)
return target, rs, iters, flags
}
func TestExecute(t *testing.T) {
target, _, _, configFlags := initTest(t)
bin := buildExecutor(t, target)
defer os.Remove(bin)
flags := []ExecFlags{0, FlagThreaded, FlagThreaded | FlagCollide}
for _, flag := range flags {
t.Logf("testing flags 0x%x\n", flag)
cfg := &Config{
Executor: bin,
Flags: configFlags,
Timeout: timeout,
}
env, err := MakeEnv(cfg, 0)
if err != nil {
t.Fatalf("failed to create env: %v", err)
}
defer env.Close()
for i := 0; i < 10; i++ {
p := target.GenerateSimpleProg()
opts := &ExecOpts{
Flags: flag,
}
output, info, failed, hanged, err := env.Exec(opts, p)
if err != nil {
t.Fatalf("failed to run executor: %v", err)
}
if hanged {
t.Fatalf("program hanged:\n%s", output)
}
if failed {
t.Fatalf("program failed:\n%s", output)
}
if len(info) == 0 {
t.Fatalf("no calls executed:\n%s", output)
}
if info[0].Errno != 0 {
t.Fatalf("simple call failed: %v\n%s", info[0].Errno, output)
}
if len(output) != 0 {
t.Fatalf("output on empty program")
}
}
}
}
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