1 files changed, 54 insertions, 0 deletions
diff --git a/test/test_pty.py b/test/test_pty.py
new file mode 100644
index 0000000..6606ff7
--- /dev/null
+++ b/test/test_pty.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+#
+# This file is part of pySerial - Cross platform serial port support for Python
+# (C) 2016 Chris Liechti <cliechti@gmx.net>
+#
+# SPDX-License-Identifier:    BSD-3-Clause
+"""
+Test PTY related functionality.
+"""
+
+import os
+import sys
+
+try:
+    import pty
+except ImportError:
+    pty = None
+import unittest
+import serial
+
+DATA = b'Hello\n'
+
+@unittest.skipIf(pty is None, "pty module not supported on platform")
+class Test_Pty_Serial_Open(unittest.TestCase):
+    """Test PTY serial open"""
+
+    def setUp(self):
+        # Open PTY
+        self.master, self.slave = pty.openpty()
+
+    def test_pty_serial_open_slave(self):
+        with serial.Serial(os.ttyname(self.slave), timeout=1) as slave:
+            pass  # OK
+
+    def test_pty_serial_write(self):
+        with serial.Serial(os.ttyname(self.slave), timeout=1) as slave:
+            with os.fdopen(self.master, "wb") as fd:
+                fd.write(DATA)
+                fd.flush()
+                out = slave.read(len(DATA))
+                self.assertEqual(DATA, out)
+
+    def test_pty_serial_read(self):
+        with serial.Serial(os.ttyname(self.slave), timeout=1) as slave:
+            with os.fdopen(self.master, "rb") as fd:
+                slave.write(DATA)
+                slave.flush()
+                out = fd.read(len(DATA))
+                self.assertEqual(DATA, out)
+
+if __name__ == '__main__':
+    sys.stdout.write(__doc__)
+    # When this module is executed from the command-line, it runs all its tests
+    unittest.main()