mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 09:40:36 +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.
197 lines
6.6 KiB
Python
197 lines
6.6 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 sys
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import pytest
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from threading import Event
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from functools import partial
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from gpiozero.pins.mock import MockChargingPin, MockTriggerPin
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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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def test_input_initial_values():
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pin = Device.pin_factory.pin(4)
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with InputDevice(4, pull_up=True) as device:
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assert pin.function == 'input'
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assert pin.pull == 'up'
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assert device.pull_up
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with InputDevice(4, pull_up=False) as device:
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assert pin.pull == 'down'
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assert not device.pull_up
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def test_input_is_active_low():
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pin = Device.pin_factory.pin(2)
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with InputDevice(2, pull_up=True) as device:
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pin.drive_high()
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assert not device.is_active
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assert repr(device) == '<gpiozero.InputDevice object on pin GPIO2, pull_up=True, is_active=False>'
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pin.drive_low()
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assert device.is_active
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assert repr(device) == '<gpiozero.InputDevice object on pin GPIO2, pull_up=True, is_active=True>'
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def test_input_is_active_high():
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pin = Device.pin_factory.pin(4)
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with InputDevice(4, pull_up=False) as device:
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pin.drive_high()
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assert device.is_active
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assert repr(device) == '<gpiozero.InputDevice object on pin GPIO4, pull_up=False, is_active=True>'
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pin.drive_low()
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assert not device.is_active
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assert repr(device) == '<gpiozero.InputDevice object on pin GPIO4, pull_up=False, is_active=False>'
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def test_input_pulled_up():
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pin = Device.pin_factory.pin(2)
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with pytest.raises(PinFixedPull):
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InputDevice(2, pull_up=False)
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def test_input_event_activated():
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event = Event()
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pin = Device.pin_factory.pin(4)
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with DigitalInputDevice(4) as device:
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device.when_activated = lambda: event.set()
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assert not event.is_set()
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pin.drive_high()
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assert event.is_set()
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def test_input_event_deactivated():
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event = Event()
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pin = Device.pin_factory.pin(4)
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with DigitalInputDevice(4) as device:
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device.when_deactivated = lambda: event.set()
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assert not event.is_set()
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pin.drive_high()
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assert not event.is_set()
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pin.drive_low()
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assert event.is_set()
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def test_input_partial_callback():
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event = Event()
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pin = Device.pin_factory.pin(4)
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def foo(a, b):
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event.set()
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return a + b
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bar = partial(foo, 1)
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baz = partial(bar, 2)
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with DigitalInputDevice(4) as device:
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device.when_activated = baz
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assert not event.is_set()
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pin.drive_high()
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assert event.is_set()
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def test_input_wait_active():
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pin = Device.pin_factory.pin(4)
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with DigitalInputDevice(4) as device:
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pin.drive_high()
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assert device.wait_for_active(1)
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assert not device.wait_for_inactive(0)
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def test_input_wait_inactive():
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pin = Device.pin_factory.pin(4)
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with DigitalInputDevice(4) as device:
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assert device.wait_for_inactive(1)
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assert not device.wait_for_active(0)
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def test_input_smoothed_attrib():
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pin = Device.pin_factory.pin(4)
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with SmoothedInputDevice(4, threshold=0.5, queue_len=5, partial=False) as device:
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assert repr(device) == '<gpiozero.SmoothedInputDevice object on pin GPIO4, pull_up=False>'
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assert device.threshold == 0.5
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assert device.queue_len == 5
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assert not device.partial
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device._queue.start()
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assert not device.is_active
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with pytest.raises(InputDeviceError):
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device.threshold = 1
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def test_input_smoothed_values():
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pin = Device.pin_factory.pin(4)
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with SmoothedInputDevice(4) as device:
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device._queue.start()
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assert not device.is_active
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pin.drive_high()
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assert device.wait_for_active(1)
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pin.drive_low()
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assert device.wait_for_inactive(1)
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def test_input_button():
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pin = Device.pin_factory.pin(2)
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with Button(2) as button:
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assert pin.pull == 'up'
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assert not button.is_pressed
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pin.drive_low()
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assert button.is_pressed
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assert button.wait_for_press(1)
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pin.drive_high()
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assert not button.is_pressed
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assert button.wait_for_release(1)
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def test_input_line_sensor():
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pin = Device.pin_factory.pin(4)
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with LineSensor(4) as sensor:
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pin.drive_low() # logic is inverted for line sensor
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assert sensor.wait_for_line(1)
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assert sensor.line_detected
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pin.drive_high()
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assert sensor.wait_for_no_line(1)
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assert not sensor.line_detected
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def test_input_motion_sensor():
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pin = Device.pin_factory.pin(4)
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with MotionSensor(4) as sensor:
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pin.drive_high()
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assert sensor.wait_for_motion(1)
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assert sensor.motion_detected
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pin.drive_low()
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assert sensor.wait_for_no_motion(1)
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assert not sensor.motion_detected
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@pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
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reason='timing is too random on pypy')
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def test_input_light_sensor():
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pin = Device.pin_factory.pin(4, pin_class=MockChargingPin)
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with LightSensor(4) as sensor:
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pin.charge_time = 0.1
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assert sensor.wait_for_dark(1)
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pin.charge_time = 0.0
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assert sensor.wait_for_light(1)
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@pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
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reason='timing is too random on pypy')
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def test_input_distance_sensor():
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echo_pin = Device.pin_factory.pin(4)
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trig_pin = Device.pin_factory.pin(5, pin_class=MockTriggerPin, echo_pin=echo_pin, echo_time=0.02)
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with pytest.raises(ValueError):
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DistanceSensor(4, 5, max_distance=-1)
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# normal queue len is large (because the sensor is *really* jittery) but
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# we want quick tests and we've got precisely controlled pins :)
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with DistanceSensor(4, 5, queue_len=5, max_distance=1) as sensor:
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assert sensor.max_distance == 1
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assert sensor.trigger is trig_pin
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assert sensor.echo is echo_pin
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assert sensor.wait_for_out_of_range(1)
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assert not sensor.in_range
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assert sensor.distance == 1.0 # should be waay before max-distance so this should work
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trig_pin.echo_time = 0.0
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assert sensor.wait_for_in_range(1)
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assert sensor.in_range
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assert sensor.distance < sensor.threshold_distance # depending on speed of machine, may not reach 0 here
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sensor.threshold_distance = 0.1
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assert sensor.threshold_distance == 0.1
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with pytest.raises(ValueError):
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sensor.max_distance = -1
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sensor.max_distance = 20
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assert sensor.max_distance == 20
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assert sensor.threshold_distance == 0.1
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