fixed unit tests

doc.go

@@ -4,6 +4,7 @@ package pty
 import (
 	"errors"
 	"io"
+	"time"
 )
 
 // ErrUnsupported is returned if a function is not
@@ -30,6 +31,8 @@ type Pty interface {
 
 	// WriteString is only used to identify Pty and Tty
 	WriteString(s string) (n int, err error)
+	SetDeadline(t time.Time) error
+
 	io.ReadWriteCloser
 }
 
@@ -41,6 +44,7 @@ type Tty interface {
 	FdHolder
 
 	Name() string
+	SetDeadline(t time.Time) error
 
 	io.ReadWriteCloser
 }

io_test.go

@@ -4,13 +4,12 @@
 package pty
 
 import (
-	"testing"
-
 	"context"
 	"errors"
 	"os"
 	"runtime"
 	"sync"
+	"testing"
 	"time"
 )
 
@@ -71,7 +70,7 @@ func TestReadClose(t *testing.T) {
 }
 
 // Open pty and setup watchdogs for graceful and not so graceful failure modes
-func prepare(t *testing.T) (ptmx *os.File, done func()) {
+func prepare(t *testing.T) (ptmx Pty, done func()) {
 	if runtime.GOOS == "darwin" {
 		t.Log("creack/pty uses blocking i/o on darwin intentionally:")
 		t.Log("> https://github.com/creack/pty/issues/52")

pty_windows.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"os"
 	"syscall"
+	"time"
 	"unsafe"
 
 	"golang.org/x/sys/windows"
@@ -137,6 +138,10 @@ func (p *WindowsPty) Close() error {
 	return err
 }
 
+func (t *WindowsPty) SetDeadline(value time.Time) error {
+	return nil
+}
+
 func (t *WindowsTty) Name() string {
 	return t.r.Name()
 }
@@ -158,6 +163,10 @@ func (t *WindowsTty) Close() error {
 	return t.w.Close()
 }
 
+func (t *WindowsTty) SetDeadline(value time.Time) error {
+	return nil
+}
+
 func procCreatePseudoConsole(hInput windows.Handle, hOutput windows.Handle, dwFlags uint32, consoleHandle *windows.Handle) error {
 	var r0 uintptr
 	var err error