add another sending timeout unit test

test/test.py

@@ -94,7 +94,7 @@ def write_func(data):
 
 		write_func.data = None
 
-		hdlc_c = HDLController(read_func, write_func, sending_timeout=2)
+		hdlc_c = HDLController(read_func, write_func)
 		hdlc_c.send('test')
 		while write_func.data == None: pass
 		self.assertEqual(write_func.data, frame_data('test', FRAME_DATA, 0))
@@ -105,6 +105,46 @@ def write_func(data):
 		self.assertEqual(hdlc_c.get_senders_number(), 1)
 		hdlc_c.stop()
 
+	def test_send_three_frames_and_wait_timeout(self):
+		def read_func():
+			pass
+
+		def write_func(data):
+			write_func.data = data
+
+		write_func.data = None
+
+		hdlc_c = HDLController(read_func, write_func, sending_timeout=5)
+		hdlc_c.send('test1')
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test1', FRAME_DATA, 0))
+		self.assertEqual(hdlc_c.get_senders_number(), 1)
+		write_func.data = None
+		sleep(1)
+		hdlc_c.send('test2')
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test2', FRAME_DATA, 1))
+		self.assertEqual(hdlc_c.get_senders_number(), 2)
+		write_func.data = None
+		sleep(1)
+		hdlc_c.send('test3')
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test3', FRAME_DATA, 2))
+		self.assertEqual(hdlc_c.get_senders_number(), 3)
+		write_func.data = None
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test1', FRAME_DATA, 0))
+		self.assertEqual(hdlc_c.get_senders_number(), 3)
+		write_func.data = None
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test2', FRAME_DATA, 1))
+		self.assertEqual(hdlc_c.get_senders_number(), 3)
+		write_func.data = None
+		while write_func.data == None: pass
+		self.assertEqual(write_func.data, frame_data('test3', FRAME_DATA, 2))
+		self.assertEqual(hdlc_c.get_senders_number(), 3)
+		hdlc_c.stop()
+
 	def test_send_frame_and_receive_ack(self):
 		def read_func():
 			return frame_data('', FRAME_ACK, 1)