FilesExpand file tree

 develop

/

contextmanager_test.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

43 lines (32 loc) · 1.15 KB

 develop

/

contextmanager_test.py

Copy path

Top

File metadata and controls

• Code
• Blame

43 lines (32 loc) · 1.15 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

#!/usr/bin/env python

"""

This module tests the context manager of Bus and Notifier classes

"""

import unittest

import can

class ContextManagerTest(unittest.TestCase):

def setUp(self):

data = [0, 1, 2, 3, 4, 5, 6, 7]

self.msg_send = can.Message(

is_extended_id=False, arbitration_id=0x100, data=data

)

def test_open_buses(self):

with (

can.Bus(interface="virtual") as bus_send,

can.Bus(interface="virtual") as bus_recv,

):

bus_send.send(self.msg_send)

msg_recv = bus_recv.recv()

# Receiving a frame with data should evaluate msg_recv to True

self.assertTrue(msg_recv)

def test_use_closed_bus(self):

with (

can.Bus(interface="virtual") as bus_send,

can.Bus(interface="virtual") as bus_recv,

):

bus_send.send(self.msg_send)

# Receiving a frame after bus has been closed should raise a CanException

self.assertRaises(can.CanError, bus_recv.recv)

self.assertRaises(can.CanError, bus_send.send, self.msg_send)

if __name__ == "__main__":

unittest.main()