mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
c820636fcb
This implements the proposal discussed in the re-opened #279 to add a pin_factory argument at the device level and remove the ability to specify a pin instance to device constructors (they now only accept a pin specification). Note: there's still a couple of bits to tidy up (tests on "real" Pis, and pin_factory.release_all needs refinement) but the test suite is now at least capable of passing on a PC.
135 lines
3.6 KiB
Python
135 lines
3.6 KiB
Python
from __future__ import (
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unicode_literals,
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absolute_import,
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print_function,
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division,
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)
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str = type('')
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import warnings
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import pytest
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from gpiozero import *
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def teardown_function(function):
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Device.pin_factory.reset()
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# TODO add more devices tests!
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def test_device_bad_pin():
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with pytest.raises(GPIOPinMissing):
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device = GPIODevice()
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with pytest.raises(PinInvalidPin):
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device = GPIODevice(60)
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def test_device_non_physical():
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with warnings.catch_warnings(record=True) as w:
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device = GPIODevice(37)
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assert len(w) == 1
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assert w[0].category == PinNonPhysical
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def test_device_init():
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pin = Device.pin_factory.pin(2)
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with GPIODevice(2) as device:
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assert not device.closed
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assert device.pin == pin
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def test_device_init_twice_same_pin():
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with GPIODevice(2) as device:
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with pytest.raises(GPIOPinInUse):
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GPIODevice(2)
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def test_device_init_twice_different_pin():
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with GPIODevice(2) as device:
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with GPIODevice(3) as device2:
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pass
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def test_device_close():
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device = GPIODevice(2)
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# Don't use "with" here; we're testing close explicitly
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device.close()
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assert device.closed
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assert device.pin is None
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def test_device_reopen_same_pin():
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pin = Device.pin_factory.pin(2)
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with GPIODevice(2) as device:
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pass
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with GPIODevice(2) as device2:
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assert not device2.closed
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assert device2.pin is pin
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assert device.closed
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assert device.pin is None
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def test_device_repr():
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with GPIODevice(4) as device:
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assert repr(device) == '<gpiozero.GPIODevice object on pin %s, is_active=False>' % device.pin
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def test_device_repr_after_close():
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with GPIODevice(2) as device:
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pass
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assert repr(device) == '<gpiozero.GPIODevice object closed>'
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def test_device_unknown_attr():
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with GPIODevice(2) as device:
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with pytest.raises(AttributeError):
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device.foo = 1
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def test_device_context_manager():
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with GPIODevice(2) as device:
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assert not device.closed
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assert device.closed
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def test_composite_device_sequence():
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with CompositeDevice(
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InputDevice(4),
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InputDevice(5)
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) as device:
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assert len(device) == 2
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assert device[0].pin.number == 4
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assert device[1].pin.number == 5
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assert device.namedtuple._fields == ('device_0', 'device_1')
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def test_composite_device_values():
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with CompositeDevice(
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InputDevice(4),
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InputDevice(5)
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) as device:
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assert device.value == (0, 0)
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assert not device.is_active
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device[0].pin.drive_high()
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assert device.value == (1, 0)
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assert device.is_active
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def test_composite_device_named():
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with CompositeDevice(
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foo=InputDevice(4),
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bar=InputDevice(5),
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_order=('foo', 'bar')
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) as device:
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assert device.namedtuple._fields == ('foo', 'bar')
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assert device.value == (0, 0)
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assert not device.is_active
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def test_composite_device_bad_init():
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with pytest.raises(ValueError):
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CompositeDevice(foo=1, bar=2, _order=('foo',))
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with pytest.raises(ValueError):
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CompositeDevice(close=1)
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with pytest.raises(ValueError):
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CompositeDevice(2)
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with pytest.raises(ValueError):
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CompositeDevice(Device.pin_factory.pin(2))
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def test_composite_device_read_only():
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with CompositeDevice(
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foo=InputDevice(4),
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bar=InputDevice(5)
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) as device:
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with pytest.raises(AttributeError):
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device.foo = 1
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