uhd/host/tests/device_addr_test.py
Martin Braun 18d11d2ef8 uhd: python: Make DeviceAddr behave like dict
This adds methods to the Python-bound version of device_addr_t so it
behaves like and can be used like a Python dictionary.

Specifically, it adds (including unit tests; assume a and b are of type
uhd.types.DeviceAddr):

```py
len(a)
a.keys()
a.values()
a.get('key')
a.get('key', 'default')
a.pop('key')
'key' in a
a['key']
a['key'] = 'new_val'
a == b
a != b
    # These differ from Python's versions:
a.update(b)
a.update({'foo': 'bar'})
```

The update() method follows the signature of
uhd::device_addr_t::update(), not that of Python's dict.update(), see
the manual for details (the fail_on_conflict argument). All other
methods behave equivalently between Python's dict and uhd::dict.

Signed-off-by: Martin Braun <martin.braun@ettus.com>
2022-10-28 10:15:20 -05:00

56 lines
2.1 KiB
Python

#
# Copyright 2020 Ettus Research, a National Instruments Brand
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
"""
Unit test for uhd.types.DeviceAddr
"""
import unittest
from uhd.types import DeviceAddr, separate_device_addr, combine_device_addrs
class DeviceAddrTest(unittest.TestCase):
""" Test Python-wrapped device_addr_t """
def test_device_addr_dict(self):
"""
Check we can use DeviceAddr like a Python dict
"""
dev_a = DeviceAddr("a=1,b=2,c=3")
self.assertEqual(len(dev_a), 3)
self.assertEqual(dev_a.to_dict(), {'a': '1', 'b': '2', 'c': '3'})
dev_d = dev_a.to_dict()
self.assertEqual(dev_a.keys(), list(dev_d.keys()))
self.assertEqual(dev_a.values(), list(dev_d.values()))
self.assertEqual(dev_a.get('a'), '1')
self.assertEqual(dev_a.get('a', 'boo'), '1')
self.assertEqual(dev_a.get('z'), None)
self.assertEqual(dev_a.get('z', 'boo'), 'boo')
self.assertEqual(dev_a['a'], '1')
with self.assertRaises(KeyError):
print(dev_a['z'])
self.assertTrue('a' in dev_a)
self.assertEqual(dev_a.pop('a'), '1')
self.assertEqual(len(dev_a), 2)
self.assertTrue('a' not in dev_a)
self.assertEqual(dev_a.pop('z', 'boo'), 'boo')
with self.assertRaises(KeyError):
print(dev_a.pop('z'))
dev_a.update({'a': '9'})
self.assertEqual(dev_a.get('a'), '9')
with self.assertRaises(RuntimeError):
dev_a.update({'a': '12'})
dev_a.update({'a': '12'}, False)
self.assertEqual(dev_a.get('a'), '12')
def test_device_addr_separate(self):
dev_a = DeviceAddr("addr0=192.168.40.1,addr1=192.168.40.2,time_source=external")
self.assertEqual(len(dev_a.separate()), 2)
self.assertEqual(len(dev_a.separate()[0]), 2)
self.assertEqual(dev_a.separate(), separate_device_addr(dev_a))
self.assertEqual(
DeviceAddr(
'addr0=192.168.40.1,time_source0=external,'
'addr1=192.168.40.2,time_source1=external'),
combine_device_addrs(dev_a.separate()))