3 files changed, 1119 insertions, 0 deletions
diff --git a/ipc/pipe/pipe_factory.go b/ipc/pipe/pipe_factory.go
new file mode 100755
index 00000000..4a3c9a67
--- /dev/null
+++ b/ipc/pipe/pipe_factory.go
@@ -0,0 +1,178 @@
+package pipe
+
+import (
+	"context"
+	"os/exec"
+
+	"github.com/spiral/goridge/v3/pkg/pipe"
+	"github.com/spiral/roadrunner/v2/internal"
+	"github.com/spiral/roadrunner/v2/worker"
+	"go.uber.org/zap"
+)
+
+// Factory connects to stack using standard
+// streams (STDIN, STDOUT pipes).
+type Factory struct {
+	log *zap.Logger
+}
+
+// NewPipeFactory returns new factory instance and starts
+// listening
+func NewPipeFactory(log *zap.Logger) *Factory {
+	return &Factory{
+		log: log,
+	}
+}
+
+type sr struct {
+	w   *worker.Process
+	err error
+}
+
+// SpawnWorkerWithTimeout creates new Process and connects it to goridge relay,
+// method Wait() must be handled on level above.
+func (f *Factory) SpawnWorkerWithTimeout(ctx context.Context, cmd *exec.Cmd) (*worker.Process, error) {
+	spCh := make(chan sr)
+	go func() {
+		w, err := worker.InitBaseWorker(cmd, worker.WithLog(f.log))
+		if err != nil {
+			select {
+			case spCh <- sr{
+				w:   nil,
+				err: err,
+			}:
+				return
+			default:
+				return
+			}
+		}
+
+		in, err := cmd.StdoutPipe()
+		if err != nil {
+			select {
+			case spCh <- sr{
+				w:   nil,
+				err: err,
+			}:
+				return
+			default:
+				return
+			}
+		}
+
+		out, err := cmd.StdinPipe()
+		if err != nil {
+			select {
+			case spCh <- sr{
+				w:   nil,
+				err: err,
+			}:
+				return
+			default:
+				return
+			}
+		}
+
+		// Init new PIPE relay
+		relay := pipe.NewPipeRelay(in, out)
+		w.AttachRelay(relay)
+
+		// Start the worker
+		err = w.Start()
+		if err != nil {
+			select {
+			case spCh <- sr{
+				w:   nil,
+				err: err,
+			}:
+				return
+			default:
+				return
+			}
+		}
+
+		// used as a ping
+		_, err = internal.Pid(relay)
+		if err != nil {
+			_ = w.Kill()
+			select {
+			case spCh <- sr{
+				w:   nil,
+				err: err,
+			}:
+				return
+			default:
+				_ = w.Kill()
+				return
+			}
+		}
+
+		select {
+		case
+		// return worker
+		spCh <- sr{
+			w:   w,
+			err: nil,
+		}:
+			// everything ok, set ready state
+			w.State().Set(worker.StateReady)
+			return
+		default:
+			_ = w.Kill()
+			return
+		}
+	}()
+
+	select {
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	case res := <-spCh:
+		if res.err != nil {
+			return nil, res.err
+		}
+		return res.w, nil
+	}
+}
+
+func (f *Factory) SpawnWorker(cmd *exec.Cmd) (*worker.Process, error) {
+	w, err := worker.InitBaseWorker(cmd, worker.WithLog(f.log))
+	if err != nil {
+		return nil, err
+	}
+
+	in, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	out, err := cmd.StdinPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	// Init new PIPE relay
+	relay := pipe.NewPipeRelay(in, out)
+	w.AttachRelay(relay)
+
+	// Start the worker
+	err = w.Start()
+	if err != nil {
+		return nil, err
+	}
+
+	// errors bundle
+	_, err = internal.Pid(relay)
+	if err != nil {
+		_ = w.Kill()
+		return nil, err
+	}
+
+	// everything ok, set ready state
+	w.State().Set(worker.StateReady)
+	return w, nil
+}
+
+// Close the factory.
+func (f *Factory) Close() error {
+	return nil
+}
diff --git a/ipc/pipe/pipe_factory_spawn_test.go b/ipc/pipe/pipe_factory_spawn_test.go
new file mode 100644
index 00000000..2ce5a257
--- /dev/null
+++ b/ipc/pipe/pipe_factory_spawn_test.go
@@ -0,0 +1,430 @@
+package pipe
+
+import (
+	"os/exec"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/spiral/errors"
+	"github.com/spiral/roadrunner/v2/payload"
+	"github.com/spiral/roadrunner/v2/worker"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap"
+)
+
+var log = zap.NewNop()
+
+func Test_GetState2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+		assert.Equal(t, worker.StateStopped, w.State().Value())
+	}()
+
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	assert.Equal(t, worker.StateReady, w.State().Value())
+	assert.NoError(t, w.Stop())
+}
+
+func Test_Kill2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	wg := &sync.WaitGroup{}
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		assert.Error(t, w.Wait())
+		assert.Equal(t, worker.StateErrored, w.State().Value())
+	}()
+
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	assert.Equal(t, worker.StateReady, w.State().Value())
+	err = w.Kill()
+	if err != nil {
+		t.Errorf("error killing the Process: error %v", err)
+	}
+	wg.Wait()
+}
+
+func Test_Pipe_Start2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+
+	assert.NoError(t, w.Stop())
+}
+
+func Test_Pipe_StartError2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	err := cmd.Start()
+	if err != nil {
+		t.Errorf("error running the command: error %v", err)
+	}
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_PipeError3(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	_, err := cmd.StdinPipe()
+	if err != nil {
+		t.Errorf("error creating the STDIN pipe: error %v", err)
+	}
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_PipeError4(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	_, err := cmd.StdinPipe()
+	if err != nil {
+		t.Errorf("error creating the STDIN pipe: error %v", err)
+	}
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_Failboot2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/failboot.php")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.Nil(t, w)
+	assert.Error(t, err)
+}
+
+func Test_Pipe_Invalid2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/invalid.php")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_Echo2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.NoError(t, err)
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+
+	assert.NoError(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	go func() {
+		if w.Wait() != nil {
+			t.Fail()
+		}
+	}()
+
+	assert.Equal(t, "hello", res.String())
+	err = w.Stop()
+	assert.NoError(t, err)
+}
+
+func Test_Pipe_Broken2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "broken", "pipes")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	assert.NoError(t, err)
+	require.NotNil(t, w)
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.Error(t, err)
+	assert.Nil(t, res)
+
+	time.Sleep(time.Second)
+	err = w.Stop()
+	assert.Error(t, err)
+}
+
+func Benchmark_Pipe_SpawnWorker_Stop2(b *testing.B) {
+	f := NewPipeFactory(log)
+	for n := 0; n < b.N; n++ {
+		cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+		w, _ := f.SpawnWorker(cmd)
+		go func() {
+			if w.Wait() != nil {
+				b.Fail()
+			}
+		}()
+
+		err := w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the worker: error %v", err)
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEcho2(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+	sw := worker.From(w)
+
+	b.ReportAllocs()
+	b.ResetTimer()
+	go func() {
+		err := w.Wait()
+		if err != nil {
+			b.Errorf("error waiting the worker: error %v", err)
+		}
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the worker: error %v", err)
+		}
+	}()
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEcho4(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEchoWithoutContext2(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Test_Echo2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sw := worker.From(w)
+
+	go func() {
+		assert.NoError(t, sw.Wait())
+	}()
+	defer func() {
+		err = sw.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+
+	assert.Nil(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_BadPayload2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+
+	sw := worker.From(w)
+
+	go func() {
+		assert.NoError(t, sw.Wait())
+	}()
+	defer func() {
+		err := sw.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	res, err := sw.Exec(&payload.Payload{})
+	assert.Error(t, err)
+	assert.Nil(t, res)
+
+	assert.Contains(t, err.Error(), "payload can not be empty")
+}
+
+func Test_String2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	assert.Contains(t, w.String(), "php ../../tests/client.php echo pipes")
+	assert.Contains(t, w.String(), "ready")
+	assert.Contains(t, w.String(), "num_execs: 0")
+}
+
+func Test_Echo_Slow2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/slow-client.php", "echo", "pipes", "10", "10")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+
+	assert.Nil(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_Broken2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "broken", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorker(cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NotNil(t, err)
+	assert.Nil(t, res)
+
+	time.Sleep(time.Second * 3)
+	assert.Error(t, w.Stop())
+}
+
+func Test_Error2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "error", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NotNil(t, err)
+	assert.Nil(t, res)
+
+	if errors.Is(errors.SoftJob, err) == false {
+		t.Fatal("error should be of type errors.ErrSoftJob")
+	}
+	assert.Contains(t, err.Error(), "hello")
+}
+
+func Test_NumExecs2(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorker(cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	_, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(1), w.State().NumExecs())
+
+	_, err = sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(2), w.State().NumExecs())
+
+	_, err = sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(3), w.State().NumExecs())
+}
diff --git a/ipc/pipe/pipe_factory_test.go b/ipc/pipe/pipe_factory_test.go
new file mode 100755
index 00000000..025498b5
--- /dev/null
+++ b/ipc/pipe/pipe_factory_test.go
@@ -0,0 +1,511 @@
+package pipe
+
+import (
+	"context"
+	"os/exec"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/spiral/errors"
+	"github.com/spiral/roadrunner/v2/payload"
+	"github.com/spiral/roadrunner/v2/worker"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_GetState(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+		assert.Equal(t, worker.StateStopped, w.State().Value())
+	}()
+
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	assert.Equal(t, worker.StateReady, w.State().Value())
+	err = w.Stop()
+	if err != nil {
+		t.Errorf("error stopping the Process: error %v", err)
+	}
+}
+
+func Test_Kill(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	wg := &sync.WaitGroup{}
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		assert.Error(t, w.Wait())
+		assert.Equal(t, worker.StateErrored, w.State().Value())
+	}()
+
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	assert.Equal(t, worker.StateReady, w.State().Value())
+	err = w.Kill()
+	if err != nil {
+		t.Errorf("error killing the Process: error %v", err)
+	}
+	wg.Wait()
+}
+
+func Test_Pipe_Start(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	assert.NoError(t, err)
+	assert.NotNil(t, w)
+
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+
+	assert.NoError(t, w.Stop())
+}
+
+func Test_Pipe_StartError(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	err := cmd.Start()
+	if err != nil {
+		t.Errorf("error running the command: error %v", err)
+	}
+
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_PipeError(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	_, err := cmd.StdinPipe()
+	if err != nil {
+		t.Errorf("error creating the STDIN pipe: error %v", err)
+	}
+
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_PipeError2(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	// error cause
+	_, err := cmd.StdinPipe()
+	if err != nil {
+		t.Errorf("error creating the STDIN pipe: error %v", err)
+	}
+
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_Failboot(t *testing.T) {
+	cmd := exec.Command("php", "../../tests/failboot.php")
+	ctx := context.Background()
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+
+	assert.Nil(t, w)
+	assert.Error(t, err)
+}
+
+func Test_Pipe_Invalid(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/invalid.php")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	assert.Error(t, err)
+	assert.Nil(t, w)
+}
+
+func Test_Pipe_Echo(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NoError(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	go func() {
+		if w.Wait() != nil {
+			t.Fail()
+		}
+	}()
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_Pipe_Echo_Script(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("sh", "../../tests/pipes_test_script.sh")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NoError(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	go func() {
+		if w.Wait() != nil {
+			t.Fail()
+		}
+	}()
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_Pipe_Broken(t *testing.T) {
+	t.Parallel()
+	cmd := exec.Command("php", "../../tests/client.php", "broken", "pipes")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	require.NoError(t, err)
+	require.NotNil(t, w)
+
+	go func() {
+		errW := w.Wait()
+		require.Error(t, errW)
+	}()
+
+	sw := worker.From(w)
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.Error(t, err)
+	assert.Nil(t, res)
+
+	time.Sleep(time.Second)
+	err = w.Stop()
+	assert.NoError(t, err)
+}
+
+func Benchmark_Pipe_SpawnWorker_Stop(b *testing.B) {
+	f := NewPipeFactory(log)
+	for n := 0; n < b.N; n++ {
+		cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+		w, _ := f.SpawnWorkerWithTimeout(context.Background(), cmd)
+		go func() {
+			if w.Wait() != nil {
+				b.Fail()
+			}
+		}()
+
+		err := w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the worker: error %v", err)
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEcho(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(context.Background(), cmd)
+	sw := worker.From(w)
+
+	b.ReportAllocs()
+	b.ResetTimer()
+	go func() {
+		err := w.Wait()
+		if err != nil {
+			b.Errorf("error waiting the worker: error %v", err)
+		}
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the worker: error %v", err)
+		}
+	}()
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEcho3(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Benchmark_Pipe_Worker_ExecEchoWithoutContext(b *testing.B) {
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+	ctx := context.Background()
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	defer func() {
+		err = w.Stop()
+		if err != nil {
+			b.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	for n := 0; n < b.N; n++ {
+		if _, err := sw.Exec(&payload.Payload{Body: []byte("hello")}); err != nil {
+			b.Fail()
+		}
+	}
+}
+
+func Test_Echo(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sw := worker.From(w)
+	go func() {
+		assert.NoError(t, sw.Wait())
+	}()
+	defer func() {
+		err = sw.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+
+	assert.Nil(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_BadPayload(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+
+	sw := worker.From(w)
+
+	go func() {
+		assert.NoError(t, sw.Wait())
+	}()
+	defer func() {
+		err := sw.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	res, err := sw.Exec(&payload.Payload{})
+
+	assert.Error(t, err)
+	assert.Nil(t, res)
+
+	assert.Contains(t, err.Error(), "payload can not be empty")
+}
+
+func Test_String(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	assert.Contains(t, w.String(), "php ../../tests/client.php echo pipes")
+	assert.Contains(t, w.String(), "ready")
+	assert.Contains(t, w.String(), "num_execs: 0")
+}
+
+func Test_Echo_Slow(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/slow-client.php", "echo", "pipes", "10", "10")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+
+	assert.Nil(t, err)
+	assert.NotNil(t, res)
+	assert.NotNil(t, res.Body)
+	assert.Empty(t, res.Context)
+
+	assert.Equal(t, "hello", res.String())
+}
+
+func Test_Broken(t *testing.T) {
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "broken", "pipes")
+
+	w, err := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	sw := worker.From(w)
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NotNil(t, err)
+	assert.Nil(t, res)
+
+	time.Sleep(time.Second * 3)
+	assert.Error(t, w.Stop())
+}
+
+func Test_Error(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "error", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	res, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	assert.NotNil(t, err)
+	assert.Nil(t, res)
+
+	if errors.Is(errors.SoftJob, err) == false {
+		t.Fatal("error should be of type errors.ErrSoftJob")
+	}
+	assert.Contains(t, err.Error(), "hello")
+}
+
+func Test_NumExecs(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	cmd := exec.Command("php", "../../tests/client.php", "echo", "pipes")
+
+	w, _ := NewPipeFactory(log).SpawnWorkerWithTimeout(ctx, cmd)
+	go func() {
+		assert.NoError(t, w.Wait())
+	}()
+	defer func() {
+		err := w.Stop()
+		if err != nil {
+			t.Errorf("error stopping the Process: error %v", err)
+		}
+	}()
+
+	sw := worker.From(w)
+
+	_, err := sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(1), w.State().NumExecs())
+
+	_, err = sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(2), w.State().NumExecs())
+
+	_, err = sw.Exec(&payload.Payload{Body: []byte("hello")})
+	if err != nil {
+		t.Errorf("fail to execute payload: error %v", err)
+	}
+	assert.Equal(t, uint64(3), w.State().NumExecs())
+}