upd test

config.go

@@ -10,6 +10,7 @@ type config struct {
 	KeepAliveTimeout time.Duration
 	TimeoutJitter    int64 // additional random timeout in ms
 	GracefulTimeout  time.Duration
+	TaskChLen        int
 }
 
 type logger interface {
@@ -64,3 +65,13 @@ func WithGracefulTimeout(t time.Duration) Option {
 func (t gracefulTimeout) apply(cfg *config) {
 	cfg.GracefulTimeout = time.Duration(t)
 }
+
+type taskChLen int
+
+func WithTaskLen(t int) Option {
+	return taskChLen(t)
+}
+
+func (t taskChLen) apply(cfg *config) {
+	cfg.TaskChLen = int(t)
+}

pool_test.go

@@ -165,6 +165,7 @@ func TestOnPanic(t *testing.T) {
 		context.Background(),
 		WithJitter(1),
 		WithCapacity(testCount),
+		WithTaskLen(0),
 	)
 	pool.SetLogger(log.New(io.Discard, "", 0))
 
@@ -217,6 +218,7 @@ func TestCloseGracefullyByTimeout(t *testing.T) {
 		WithKeepAlive(time.Minute),
 		WithCapacity(1),
 		WithGracefulTimeout(3*time.Second),
+		WithTaskLen(2),
 	)
 
 	task := func(ctx context.Context) {