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
44
45
46
|
#!/usr/bin/env python
# coding: utf-8
"""
Tests helpers in `can.interfaces.socketcan.socketcan_common`.
"""
from __future__ import absolute_import
import unittest
from can.interfaces.socketcan.utils import \
find_available_interfaces, error_code_to_str
from .config import *
class TestSocketCanHelpers(unittest.TestCase):
@unittest.skipUnless(IS_LINUX, "socketcan is only available on Linux")
def test_error_code_to_str(self):
"""
Check that the function does not crash & always
returns at least one character.
"""
# all possible & also some invalid error codes
test_data = list(range(0, 256)) + [-1, 256, 5235, 346264]
for error_code in test_data:
string = error_code_to_str(error_code)
self.assertTrue(string) # not None or empty
@unittest.skipUnless(IS_LINUX, "socketcan is only available on Linux")
def test_find_available_interfaces(self):
result = list(find_available_interfaces())
self.assertGreaterEqual(len(result), 0)
for entry in result:
self.assertRegexpMatches(entry, r"v?can\d+")
if IS_CI:
self.assertGreaterEqual(len(result), 1)
self.assertIn("vcan0", result)
if __name__ == '__main__':
unittest.main()
|
