mirror of
				https://github.com/KevinMidboe/python-gpiozero.git
				synced 2025-10-29 17:50:37 +00:00 
			
		
		
		
	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.
		
			
				
	
	
		
			1096 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			1096 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from __future__ import (
 | |
|     unicode_literals,
 | |
|     absolute_import,
 | |
|     print_function,
 | |
|     division,
 | |
|     )
 | |
| str = type('')
 | |
| 
 | |
| 
 | |
| import sys
 | |
| from time import sleep, time
 | |
| try:
 | |
|     from math import isclose
 | |
| except ImportError:
 | |
|     from gpiozero.compat import isclose
 | |
| 
 | |
| import pytest
 | |
| 
 | |
| from gpiozero.pins.mock import MockPin, MockPWMPin
 | |
| from gpiozero import *
 | |
| 
 | |
| 
 | |
| def setup_function(function):
 | |
|     # dirty, but it does the job
 | |
|     Device.pin_factory.pin_class = MockPWMPin if function.__name__ in (
 | |
|         'test_output_pwm_states',
 | |
|         'test_output_pwm_read',
 | |
|         'test_output_pwm_write',
 | |
|         'test_output_pwm_toggle',
 | |
|         'test_output_pwm_active_high_read',
 | |
|         'test_output_pwm_bad_value',
 | |
|         'test_output_pwm_write_closed',
 | |
|         'test_output_pwm_write_silly',
 | |
|         'test_output_pwm_blink_background',
 | |
|         'test_output_pwm_blink_foreground',
 | |
|         'test_output_pwm_fade_background',
 | |
|         'test_output_pwm_fade_foreground',
 | |
|         'test_output_pwm_pulse_background',
 | |
|         'test_output_pwm_pulse_foreground',
 | |
|         'test_output_pwm_blink_interrupt',
 | |
|         'test_rgbled_initial_value',
 | |
|         'test_rgbled_initial_bad_value',
 | |
|         'test_rgbled_value',
 | |
|         'test_rgbled_bad_value',
 | |
|         'test_rgbled_toggle',
 | |
|         'test_rgbled_blink_background',
 | |
|         'test_rgbled_blink_foreground',
 | |
|         'test_rgbled_fade_background',
 | |
|         'test_rgbled_fade_foreground',
 | |
|         'test_rgbled_pulse_background',
 | |
|         'test_rgbled_pulse_foreground',
 | |
|         'test_rgbled_blink_interrupt',
 | |
|         'test_rgbled_close',
 | |
|         'test_motor_pins',
 | |
|         'test_motor_close',
 | |
|         'test_motor_value',
 | |
|         'test_motor_bad_value',
 | |
|         'test_motor_reverse',
 | |
|         'test_servo_pins',
 | |
|         'test_servo_bad_value',
 | |
|         'test_servo_close',
 | |
|         'test_servo_pulse_width',
 | |
|         'test_servo_values',
 | |
|         'test_angular_servo_range',
 | |
|         'test_angular_servo_angles',
 | |
|         ) else MockPin
 | |
| 
 | |
| def teardown_function(function):
 | |
|     Device.pin_factory.reset()
 | |
| 
 | |
| 
 | |
| def test_output_initial_values():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with OutputDevice(2, initial_value=False) as device:
 | |
|         assert pin.function == 'output'
 | |
|         assert not pin.state
 | |
|     with OutputDevice(2, initial_value=True) as device:
 | |
|         assert pin.state
 | |
|         state = pin.state
 | |
|     with OutputDevice(2, initial_value=None) as device:
 | |
|         assert state == pin.state
 | |
| 
 | |
| def test_output_write_active_high():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with OutputDevice(2) as device:
 | |
|         device.on()
 | |
|         assert pin.state
 | |
|         device.off()
 | |
|         assert not pin.state
 | |
| 
 | |
| def test_output_write_active_low():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with OutputDevice(2, active_high=False) as device:
 | |
|         device.on()
 | |
|         assert not pin.state
 | |
|         device.off()
 | |
|         assert pin.state
 | |
| 
 | |
| def test_output_write_closed():
 | |
|     with OutputDevice(2) as device:
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         with pytest.raises(GPIODeviceClosed):
 | |
|             device.on()
 | |
| 
 | |
| def test_output_write_silly():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with OutputDevice(2) as device:
 | |
|         pin.function = 'input'
 | |
|         with pytest.raises(AttributeError):
 | |
|             device.on()
 | |
| 
 | |
| def test_output_value():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with OutputDevice(2) as device:
 | |
|         assert not device.value
 | |
|         assert not pin.state
 | |
|         device.on()
 | |
|         assert device.value
 | |
|         assert pin.state
 | |
|         device.value = False
 | |
|         assert not device.value
 | |
|         assert not pin.state
 | |
| 
 | |
| def test_output_digital_toggle():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with DigitalOutputDevice(2) as device:
 | |
|         assert not device.value
 | |
|         assert not pin.state
 | |
|         device.toggle()
 | |
|         assert device.value
 | |
|         assert pin.state
 | |
|         device.toggle()
 | |
|         assert not device.value
 | |
|         assert not pin.state
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_blink_background():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with DigitalOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join() # naughty, but ensures no arbitrary waits in the test
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, False),
 | |
|             (0.0, True),
 | |
|             (0.1, False),
 | |
|             (0.1, True),
 | |
|             (0.1, False)
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_blink_foreground():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with DigitalOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, False),
 | |
|             (0.0, True),
 | |
|             (0.1, False),
 | |
|             (0.1, True),
 | |
|             (0.1, False)
 | |
|             ])
 | |
| 
 | |
| def test_output_blink_interrupt_on():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with DigitalOutputDevice(4) as device:
 | |
|         device.blink(1, 0.1)
 | |
|         sleep(0.2)
 | |
|         device.off() # should interrupt while on
 | |
|         pin.assert_states([False, True, False])
 | |
| 
 | |
| def test_output_blink_interrupt_off():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with DigitalOutputDevice(4) as device:
 | |
|         device.blink(0.1, 1)
 | |
|         sleep(0.2)
 | |
|         device.off() # should interrupt while off
 | |
|         pin.assert_states([False, True, False])
 | |
| 
 | |
| def test_output_pwm_bad_initial_value():
 | |
|     with pytest.raises(ValueError):
 | |
|         PWMOutputDevice(2, initial_value=2)
 | |
| 
 | |
| def test_output_pwm_not_supported():
 | |
|     with pytest.raises(AttributeError):
 | |
|         PWMOutputDevice(2)
 | |
| 
 | |
| def test_output_pwm_states():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         device.value = 0.1
 | |
|         device.value = 0.2
 | |
|         device.value = 0.0
 | |
|         pin.assert_states([0.0, 0.1, 0.2, 0.0])
 | |
| 
 | |
| def test_output_pwm_read():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with PWMOutputDevice(2, frequency=100) as device:
 | |
|         assert device.frequency == 100
 | |
|         device.value = 0.1
 | |
|         assert isclose(device.value, 0.1)
 | |
|         assert isclose(pin.state, 0.1)
 | |
|         assert device.is_active
 | |
|         device.frequency = None
 | |
|         assert not device.value
 | |
|         assert not device.is_active
 | |
|         assert device.frequency is None
 | |
| 
 | |
| def test_output_pwm_write():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         device.on()
 | |
|         device.off()
 | |
|         pin.assert_states([False, True, False])
 | |
| 
 | |
| def test_output_pwm_toggle():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         device.toggle()
 | |
|         device.value = 0.5
 | |
|         device.value = 0.1
 | |
|         device.toggle()
 | |
|         device.off()
 | |
|         pin.assert_states([False, True, 0.5, 0.1, 0.9, False])
 | |
| 
 | |
| def test_output_pwm_active_high_read():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with PWMOutputDevice(2, active_high=False) as device:
 | |
|         device.value = 0.1
 | |
|         assert isclose(device.value, 0.1)
 | |
|         assert isclose(pin.state, 0.9)
 | |
|         device.frequency = None
 | |
|         assert device.value
 | |
| 
 | |
| def test_output_pwm_bad_value():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with PWMOutputDevice(2) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = 2
 | |
| 
 | |
| def test_output_pwm_write_closed():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with PWMOutputDevice(2) as device:
 | |
|         device.close()
 | |
|         with pytest.raises(GPIODeviceClosed):
 | |
|             device.on()
 | |
| 
 | |
| def test_output_pwm_write_silly():
 | |
|     pin = Device.pin_factory.pin(2)
 | |
|     with PWMOutputDevice(2) as device:
 | |
|         pin.function = 'input'
 | |
|         with pytest.raises(AttributeError):
 | |
|             device.off()
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_blink_background():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_blink_foreground():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_fade_background():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0, 0, 0.2, 0.2, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_fade_foreground():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.blink(0, 0, 0.2, 0.2, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_pulse_background():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.pulse(0.2, 0.2, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ])
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_output_pwm_pulse_foreground():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         start = time()
 | |
|         device.pulse(0.2, 0.2, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         pin.assert_states_and_times([
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ])
 | |
| 
 | |
| def test_output_pwm_blink_interrupt():
 | |
|     pin = Device.pin_factory.pin(4)
 | |
|     with PWMOutputDevice(4) as device:
 | |
|         device.blink(1, 0.1)
 | |
|         sleep(0.2)
 | |
|         device.off() # should interrupt while on
 | |
|         pin.assert_states([0, 1, 0])
 | |
| 
 | |
| def test_rgbled_missing_pins():
 | |
|     with pytest.raises(ValueError):
 | |
|         RGBLED()
 | |
| 
 | |
| def test_rgbled_initial_value():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, initial_value=(0.1, 0.2, 0)) as device:
 | |
|         assert r.frequency
 | |
|         assert g.frequency
 | |
|         assert b.frequency
 | |
|         assert isclose(r.state, 0.1)
 | |
|         assert isclose(g.state, 0.2)
 | |
|         assert isclose(b.state, 0.0)
 | |
| 
 | |
| def test_rgbled_initial_value_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False, initial_value=(0, 1, 1)) as device:
 | |
|         assert r.state == 0
 | |
|         assert g.state == 1
 | |
|         assert b.state == 1
 | |
| 
 | |
| def test_rgbled_initial_bad_value():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with pytest.raises(ValueError):
 | |
|         RGBLED(1, 2, 3, initial_value=(0.1, 0.2, 1.2))
 | |
| 
 | |
| def test_rgbled_initial_bad_value_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with pytest.raises(ValueError):
 | |
|         RGBLED(1, 2, 3, pwm=False, initial_value=(0.1, 0.2, 0))
 | |
| 
 | |
| def test_rgbled_value():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         assert isinstance(device._leds[0], PWMLED)
 | |
|         assert isinstance(device._leds[1], PWMLED)
 | |
|         assert isinstance(device._leds[2], PWMLED)
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
|         device.on()
 | |
|         assert device.is_active
 | |
|         assert device.value == (1, 1, 1)
 | |
|         device.off()
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
|         device.value = (0.5, 0.5, 0.5)
 | |
|         assert device.is_active
 | |
|         assert device.value == (0.5, 0.5, 0.5)
 | |
| 
 | |
| def test_rgbled_value_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         assert isinstance(device._leds[0], LED)
 | |
|         assert isinstance(device._leds[1], LED)
 | |
|         assert isinstance(device._leds[2], LED)
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
|         device.on()
 | |
|         assert device.is_active
 | |
|         assert device.value == (1, 1, 1)
 | |
|         device.off()
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
| 
 | |
| def test_rgbled_bad_value():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (2, 0, 0)
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (0, -1, 0)
 | |
| 
 | |
| def test_rgbled_bad_value_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (2, 0, 0)
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (0, -1, 0)
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (0.5, 0, 0)
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (0, 0.5, 0)
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = (0, 0, 0.5)
 | |
| 
 | |
| def test_rgbled_toggle():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
|         device.toggle()
 | |
|         assert device.is_active
 | |
|         assert device.value == (1, 1, 1)
 | |
|         device.toggle()
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
| 
 | |
| def test_rgbled_toggle_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
|         device.toggle()
 | |
|         assert device.is_active
 | |
|         assert device.value == (1, 1, 1)
 | |
|         device.toggle()
 | |
|         assert not device.is_active
 | |
|         assert device.value == (0, 0, 0)
 | |
| 
 | |
| def test_rgbled_blink_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.blink(fade_in_time=1)
 | |
|         with pytest.raises(ValueError):
 | |
|             device.blink(fade_out_time=1)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_blink_background():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_blink_background_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_blink_foreground():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_blink_foreground_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         start = time()
 | |
|         device.blink(0.1, 0.1, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.4, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.0, 1),
 | |
|             (0.1, 0),
 | |
|             (0.1, 1),
 | |
|             (0.1, 0)
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_fade_background():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.blink(0, 0, 0.2, 0.2, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| def test_rgbled_fade_background_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.blink(0, 0, 0.2, 0.2, n=2)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_fade_foreground():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.blink(0, 0, 0.2, 0.2, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| def test_rgbled_fade_foreground_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.blink(0, 0, 0.2, 0.2, n=2, background=False)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_pulse_background():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.pulse(0.2, 0.2, n=2)
 | |
|         assert isclose(time() - start, 0, abs_tol=0.05)
 | |
|         device._blink_thread.join()
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| def test_rgbled_pulse_background_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.pulse(0.2, 0.2, n=2)
 | |
| 
 | |
| @pytest.mark.skipif(hasattr(sys, 'pypy_version_info'),
 | |
|                     reason='timing is too random on pypy')
 | |
| def test_rgbled_pulse_foreground():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         start = time()
 | |
|         device.pulse(0.2, 0.2, n=2, background=False)
 | |
|         assert isclose(time() - start, 0.8, abs_tol=0.05)
 | |
|         expected = [
 | |
|             (0.0, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 1),
 | |
|             (0.04, 0.8),
 | |
|             (0.04, 0.6),
 | |
|             (0.04, 0.4),
 | |
|             (0.04, 0.2),
 | |
|             (0.04, 0),
 | |
|             ]
 | |
|         r.assert_states_and_times(expected)
 | |
|         g.assert_states_and_times(expected)
 | |
|         b.assert_states_and_times(expected)
 | |
| 
 | |
| def test_rgbled_pulse_foreground_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.pulse(0.2, 0.2, n=2, background=False)
 | |
| 
 | |
| def test_rgbled_blink_interrupt():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         device.blink(1, 0.1)
 | |
|         sleep(0.2)
 | |
|         device.off() # should interrupt while on
 | |
|         r.assert_states([0, 1, 0])
 | |
|         g.assert_states([0, 1, 0])
 | |
|         b.assert_states([0, 1, 0])
 | |
| 
 | |
| def test_rgbled_blink_interrupt_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (4, 5, 6))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         device.blink(1, 0.1)
 | |
|         sleep(0.2)
 | |
|         device.off() # should interrupt while on
 | |
|         r.assert_states([0, 1, 0])
 | |
|         g.assert_states([0, 1, 0])
 | |
|         b.assert_states([0, 1, 0])
 | |
| 
 | |
| def test_rgbled_close():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3) as device:
 | |
|         assert not device.closed
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         device.close()
 | |
|         assert device.closed
 | |
| 
 | |
| def test_rgbled_close_nonpwm():
 | |
|     r, g, b = (Device.pin_factory.pin(i) for i in (1, 2, 3))
 | |
|     with RGBLED(1, 2, 3, pwm=False) as device:
 | |
|         assert not device.closed
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         device.close()
 | |
|         assert device.closed
 | |
| 
 | |
| def test_motor_missing_pins():
 | |
|     with pytest.raises(ValueError):
 | |
|         Motor()
 | |
| 
 | |
| def test_motor_pins():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2) as device:
 | |
|         assert device.forward_device.pin is f
 | |
|         assert isinstance(device.forward_device, PWMOutputDevice)
 | |
|         assert device.backward_device.pin is b
 | |
|         assert isinstance(device.backward_device, PWMOutputDevice)
 | |
| 
 | |
| def test_motor_pins_nonpwm():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2, pwm=False) as device:
 | |
|         assert device.forward_device.pin is f
 | |
|         assert isinstance(device.forward_device, DigitalOutputDevice)
 | |
|         assert device.backward_device.pin is b
 | |
|         assert isinstance(device.backward_device, DigitalOutputDevice)
 | |
| 
 | |
| def test_motor_close():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2) as device:
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         assert device.forward_device.pin is None
 | |
|         assert device.backward_device.pin is None
 | |
|         device.close()
 | |
|         assert device.closed
 | |
| 
 | |
| def test_motor_close_nonpwm():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2, pwm=False) as device:
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         assert device.forward_device.pin is None
 | |
|         assert device.backward_device.pin is None
 | |
| 
 | |
| def test_motor_value():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2) as device:
 | |
|         device.value = -1
 | |
|         assert device.is_active
 | |
|         assert device.value == -1
 | |
|         assert b.state == 1 and f.state == 0
 | |
|         device.value = 1
 | |
|         assert device.is_active
 | |
|         assert device.value == 1
 | |
|         assert b.state == 0 and f.state == 1
 | |
|         device.value = 0.5
 | |
|         assert device.is_active
 | |
|         assert device.value == 0.5
 | |
|         assert b.state == 0 and f.state == 0.5
 | |
|         device.value = -0.5
 | |
|         assert device.is_active
 | |
|         assert device.value == -0.5
 | |
|         assert b.state == 0.5 and f.state == 0
 | |
|         device.value = 0
 | |
|         assert not device.is_active
 | |
|         assert not device.value
 | |
|         assert b.state == 0 and f.state == 0
 | |
| 
 | |
| def test_motor_value_nonpwm():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2, pwm=False) as device:
 | |
|         device.value = -1
 | |
|         assert device.is_active
 | |
|         assert device.value == -1
 | |
|         assert b.state == 1 and f.state == 0
 | |
|         device.value = 1
 | |
|         assert device.is_active
 | |
|         assert device.value == 1
 | |
|         assert b.state == 0 and f.state == 1
 | |
|         device.value = 0
 | |
|         assert not device.is_active
 | |
|         assert not device.value
 | |
|         assert b.state == 0 and f.state == 0
 | |
| 
 | |
| def test_motor_bad_value():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = -2
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = 2
 | |
|         with pytest.raises(ValueError):
 | |
|             device.forward(2)
 | |
|         with pytest.raises(ValueError):
 | |
|             device.backward(2)
 | |
| 
 | |
| def test_motor_bad_value_nonpwm():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2, pwm=False) as device:
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = -2
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = 2
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = 0.5
 | |
|         with pytest.raises(ValueError):
 | |
|             device.value = -0.5
 | |
| 
 | |
| def test_motor_reverse():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2) as device:
 | |
|         device.forward()
 | |
|         assert device.value == 1
 | |
|         assert b.state == 0 and f.state == 1
 | |
|         device.reverse()
 | |
|         assert device.value == -1
 | |
|         assert b.state == 1 and f.state == 0
 | |
|         device.backward(0.5)
 | |
|         assert device.value == -0.5
 | |
|         assert b.state == 0.5 and f.state == 0
 | |
|         device.reverse()
 | |
|         assert device.value == 0.5
 | |
|         assert b.state == 0 and f.state == 0.5
 | |
| 
 | |
| def test_motor_reverse_nonpwm():
 | |
|     f = Device.pin_factory.pin(1)
 | |
|     b = Device.pin_factory.pin(2)
 | |
|     with Motor(1, 2, pwm=False) as device:
 | |
|         device.forward()
 | |
|         assert device.value == 1
 | |
|         assert b.state == 0 and f.state == 1
 | |
|         device.reverse()
 | |
|         assert device.value == -1
 | |
|         assert b.state == 1 and f.state == 0
 | |
| 
 | |
| def test_servo_pins():
 | |
|     p = Device.pin_factory.pin(1)
 | |
|     with Servo(1) as device:
 | |
|         assert device.pwm_device.pin is p
 | |
|         assert isinstance(device.pwm_device, PWMOutputDevice)
 | |
| 
 | |
| def test_servo_bad_value():
 | |
|     p = Device.pin_factory.pin(1)
 | |
|     with pytest.raises(ValueError):
 | |
|         Servo(1, initial_value=2)
 | |
|     with pytest.raises(ValueError):
 | |
|         Servo(1, min_pulse_width=30/1000)
 | |
|     with pytest.raises(ValueError):
 | |
|         Servo(1, max_pulse_width=30/1000)
 | |
| 
 | |
| def test_servo_pins_nonpwm():
 | |
|     p = Device.pin_factory.pin(2)
 | |
|     with pytest.raises(PinPWMUnsupported):
 | |
|         Servo(1)
 | |
| 
 | |
| def test_servo_close():
 | |
|     p = Device.pin_factory.pin(2)
 | |
|     with Servo(1) as device:
 | |
|         device.close()
 | |
|         assert device.closed
 | |
|         assert device.pwm_device.pin is None
 | |
|         device.close()
 | |
|         assert device.closed
 | |
| 
 | |
| def test_servo_pulse_width():
 | |
|     p = Device.pin_factory.pin(2)
 | |
|     with Servo(1, min_pulse_width=5/10000, max_pulse_width=25/10000) as device:
 | |
|         assert isclose(device.min_pulse_width, 5/10000)
 | |
|         assert isclose(device.max_pulse_width, 25/10000)
 | |
|         assert isclose(device.frame_width, 20/1000)
 | |
|         assert isclose(device.pulse_width, 15/10000)
 | |
|         device.value = -1
 | |
|         assert isclose(device.pulse_width, 5/10000)
 | |
|         device.value = 1
 | |
|         assert isclose(device.pulse_width, 25/10000)
 | |
|         device.value = None
 | |
|         assert device.pulse_width is None
 | |
| 
 | |
| def test_servo_values():
 | |
|     p = Device.pin_factory.pin(1)
 | |
|     with Servo(1) as device:
 | |
|         device.min()
 | |
|         assert device.is_active
 | |
|         assert device.value == -1
 | |
|         assert isclose(p.state, 0.05)
 | |
|         device.max()
 | |
|         assert device.is_active
 | |
|         assert device.value == 1
 | |
|         assert isclose(p.state, 0.1)
 | |
|         device.mid()
 | |
|         assert device.is_active
 | |
|         assert device.value == 0.0
 | |
|         assert isclose(p.state, 0.075)
 | |
|         device.value = 0.5
 | |
|         assert device.is_active
 | |
|         assert device.value == 0.5
 | |
|         assert isclose(p.state, 0.0875)
 | |
|         device.detach()
 | |
|         assert not device.is_active
 | |
|         assert device.value is None
 | |
|         device.value = 0
 | |
|         assert device.value == 0
 | |
|         device.value = None
 | |
|         assert device.value is None
 | |
| 
 | |
| def test_angular_servo_range():
 | |
|     p = Device.pin_factory.pin(1)
 | |
|     with AngularServo(1, initial_angle=15, min_angle=0, max_angle=90) as device:
 | |
|         assert device.min_angle == 0
 | |
|         assert device.max_angle == 90
 | |
| 
 | |
| def test_angular_servo_angles():
 | |
|     p = Device.pin_factory.pin(1)
 | |
|     with AngularServo(1) as device:
 | |
|         device.angle = 0
 | |
|         assert device.angle == 0
 | |
|         assert isclose(device.value, 0)
 | |
|         device.max()
 | |
|         assert device.angle == 90
 | |
|         assert isclose(device.value, 1)
 | |
|         device.min()
 | |
|         assert device.angle == -90
 | |
|         assert isclose(device.value, -1)
 | |
|         device.detach()
 | |
|         assert device.angle is None
 | |
|     with AngularServo(1, initial_angle=15, min_angle=0, max_angle=90) as device:
 | |
|         assert device.angle == 15
 | |
|         assert isclose(device.value, -2/3)
 | |
|         device.angle = 0
 | |
|         assert device.angle == 0
 | |
|         assert isclose(device.value, -1)
 | |
|         device.angle = 90
 | |
|         assert device.angle == 90
 | |
|         assert isclose(device.value, 1)
 | |
|         device.angle = None
 | |
|         assert device.angle is None
 | |
|     with AngularServo(1, min_angle=45, max_angle=-45) as device:
 | |
|         assert device.angle == 0
 | |
|         assert isclose(device.value, 0)
 | |
|         device.angle = -45
 | |
|         assert device.angle == -45
 | |
|         assert isclose(device.value, 1)
 | |
|         device.angle = -15
 | |
|         assert device.angle == -15
 | |
|         assert isclose(device.value, 1/3)
 | |
| 
 |