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				https://github.com/KevinMidboe/python-gpiozero.git
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			714 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			714 lines
		
	
	
		
			24 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 time import sleep
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from gpiozero.pins.mock import MockPin, MockPWMPin
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from gpiozero import *
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def setup_function(function):
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    import gpiozero.devices
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    # dirty, but it does the job
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    if function.__name__ in ('test_robot', 'test_ryanteck_robot', 'test_camjam_kit_robot', 'test_led_borg', 'test_snow_pi_initial_value_pwm'):
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        gpiozero.devices.pin_factory = MockPWMPin
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    else:
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        gpiozero.devices.pin_factory = MockPin
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def teardown_function(function):
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    MockPin.clear_pins()
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def test_composite_output_on_off():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with CompositeOutputDevice(OutputDevice(pin1), OutputDevice(pin2), foo=OutputDevice(pin3)) as device:
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        device.on()
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        assert all((pin1.state, pin2.state, pin3.state))
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        device.off()
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        assert not any((pin1.state, pin2.state, pin3.state))
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def test_composite_output_toggle():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with CompositeOutputDevice(OutputDevice(pin1), OutputDevice(pin2), foo=OutputDevice(pin3)) as device:
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        device.toggle()
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        assert all((pin1.state, pin2.state, pin3.state))
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        device[0].off()
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        device.toggle()
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        assert pin1.state
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        assert not pin2.state
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        assert not pin3.state
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def test_composite_output_value():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with CompositeOutputDevice(OutputDevice(pin1), OutputDevice(pin2), foo=OutputDevice(pin3)) as device:
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        assert device.value == (0, 0, 0)
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        device.toggle()
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        assert device.value == (1, 1, 1)
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        device.value = (1, 0, 1)
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        assert device[0].is_active
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        assert not device[1].is_active
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        assert device[2].is_active
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def test_led_board_on_off():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3) as board:
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        assert isinstance(board[0], LED)
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        assert isinstance(board[1], LED)
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        assert isinstance(board[2], LED)
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        assert board.active_high
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        assert board[0].active_high
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        assert board[1].active_high
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        assert board[2].active_high
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        board.on()
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        assert all((pin1.state, pin2.state, pin3.state))
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        board.off()
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        assert not any((pin1.state, pin2.state, pin3.state))
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        board[0].on()
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        assert board.value == (1, 0, 0)
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        assert pin1.state
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        assert not pin2.state
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        assert not pin3.state
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        board.toggle()
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        assert board.value == (0, 1, 1)
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        assert not pin1.state
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        assert pin2.state
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        assert pin3.state
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        board.toggle(0,1)
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        assert board.value == (1, 0, 1)
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        assert pin1.state
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        assert not pin2.state
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        assert pin3.state
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        board.off(2)
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        assert board.value == (1, 0, 0)
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        assert pin1.state
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        assert not pin2.state
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        assert not pin3.state
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        board.on(1)
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        assert board.value == (1, 1, 0)
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        assert pin1.state
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        assert pin2.state
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        assert not pin3.state
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        board.off(0,1)
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        assert board.value == (0, 0, 0)
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        assert not pin1.state
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        assert not pin2.state
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        assert not pin3.state
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        board.on(1,2)
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        assert board.value == (0, 1, 1)
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        assert not pin1.state
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        assert pin2.state
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        assert pin3.state
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        board.toggle(0)
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        assert board.value == (1, 1, 1)
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        assert pin1.state
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        assert pin2.state
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        assert pin3.state
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def test_led_board_active_low():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3, active_high=False) as board:
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        assert not board.active_high
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        assert not board[0].active_high
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        assert not board[1].active_high
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        assert not board[2].active_high
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        board.on()
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        assert not any ((pin1.state, pin2.state, pin3.state))
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        board.off()
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        assert all((pin1.state, pin2.state, pin3.state))
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        board[0].on()
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        assert board.value == (1, 0, 0)
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        assert not pin1.state
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        assert pin2.state
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        assert pin3.state
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        board.toggle()
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        assert board.value == (0, 1, 1)
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        assert pin1.state
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        assert not pin2.state
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        assert not pin3.state
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def test_led_board_value():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3) as board:
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        assert board.value == (0, 0, 0)
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        board.value = (0, 1, 0)
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        assert board.value == (0, 1, 0)
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        board.value = (1, 0, 1)
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        assert board.value == (1, 0, 1)
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def test_led_board_pwm_value():
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    pin1 = MockPWMPin(2)
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    pin2 = MockPWMPin(3)
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    pin3 = MockPWMPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3, pwm=True) as board:
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        assert board.value == (0, 0, 0)
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        board.value = (0, 1, 0)
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        assert board.value == (0, 1, 0)
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        board.value = (0.5, 0, 0.75)
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        assert board.value == (0.5, 0, 0.75)
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def test_led_board_pwm_bad_value():
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    pin1 = MockPWMPin(2)
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    pin2 = MockPWMPin(3)
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    pin3 = MockPWMPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3, pwm=True) as board:
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        with pytest.raises(ValueError):
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            board.value = (-1, 0, 0)
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        with pytest.raises(ValueError):
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            board.value = (0, 2, 0)
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def test_led_board_initial_value():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3, initial_value=0) as board:
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        assert board.value == (0, 0, 0)
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    with LEDBoard(pin1, pin2, foo=pin3, initial_value=1) as board:
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        assert board.value == (1, 1, 1)
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def test_led_board_pwm_initial_value():
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    pin1 = MockPWMPin(2)
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    pin2 = MockPWMPin(3)
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    pin3 = MockPWMPin(4)
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    with LEDBoard(pin1, pin2, foo=pin3, pwm=True, initial_value=0) as board:
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        assert board.value == (0, 0, 0)
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    with LEDBoard(pin1, pin2, foo=pin3, pwm=True, initial_value=1) as board:
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        assert board.value == (1, 1, 1)
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    with LEDBoard(pin1, pin2, foo=pin3, pwm=True, initial_value=0.5) as board:
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        assert board.value == (0.5, 0.5, 0.5)
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def test_led_board_pwm_bad_initial_value():
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    pin1 = MockPWMPin(2)
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    pin2 = MockPWMPin(3)
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    pin3 = MockPWMPin(4)
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    with pytest.raises(ValueError):
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        LEDBoard(pin1, pin2, foo=pin3, pwm=True, initial_value=-1)
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    with pytest.raises(ValueError):
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        LEDBoard(pin1, pin2, foo=pin3, pwm=True, initial_value=2)
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def test_led_board_nested():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        assert list(led.pin for led in board.leds) == [pin1, pin2, pin3]
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        assert board.value == (0, (0, 0))
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        board.value = (1, (0, 1))
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        assert pin1.state
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        assert not pin2.state
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        assert pin3.state
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def test_led_board_bad_blink():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        with pytest.raises(ValueError):
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            board.blink(fade_in_time=1, fade_out_time=1)
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        with pytest.raises(ValueError):
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            board.blink(fade_out_time=1)
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        with pytest.raises(ValueError):
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            board.pulse()
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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_led_board_blink_background():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(0.1, 0.1, n=2)
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        board._blink_thread.join() # naughty, but ensures no arbitrary waits in the test
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        test = [
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            (0.0, False),
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            (0.0, True),
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            (0.1, False),
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            (0.1, True),
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            (0.1, False)
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            ]
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        pin1.assert_states_and_times(test)
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        pin2.assert_states_and_times(test)
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        pin3.assert_states_and_times(test)
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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_led_board_blink_foreground():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(0.1, 0.1, n=2, background=False)
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        test = [
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            (0.0, False),
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            (0.0, True),
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            (0.1, False),
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            (0.1, True),
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            (0.1, False)
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            ]
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        pin1.assert_states_and_times(test)
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        pin2.assert_states_and_times(test)
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        pin3.assert_states_and_times(test)
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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_led_board_blink_control():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(0.1, 0.1, n=2)
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        # make sure the blink thread's started
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        while not board._blink_leds:
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            sleep(0.00001) # pragma: no cover
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        board[1][0].off() # immediately take over the second LED
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        board._blink_thread.join() # naughty, but ensures no arbitrary waits in the test
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        test = [
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            (0.0, False),
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            (0.0, True),
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            (0.1, False),
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            (0.1, True),
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            (0.1, False)
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            ]
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        pin1.assert_states_and_times(test)
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        pin3.assert_states_and_times(test)
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        print(pin2.states)
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        pin2.assert_states_and_times([(0.0, False), (0.0, True), (0.0, False)])
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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_led_board_blink_take_over():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board[1].blink(0.1, 0.1, n=2)
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        board.blink(0.1, 0.1, n=2) # immediately take over blinking
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        board[1]._blink_thread.join()
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        board._blink_thread.join()
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        test = [
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            (0.0, False),
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            (0.0, True),
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            (0.1, False),
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            (0.1, True),
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            (0.1, False)
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            ]
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        pin1.assert_states_and_times(test)
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        pin2.assert_states_and_times(test)
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        pin3.assert_states_and_times(test)
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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_led_board_blink_control_all():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(0.1, 0.1, n=2)
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        # make sure the blink thread's started
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        while not board._blink_leds:
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            sleep(0.00001) # pragma: no cover
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        board[0].off() # immediately take over all LEDs
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        board[1][0].off()
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        board[1][1].off()
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        board._blink_thread.join() # blink should terminate here anyway
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        test = [
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            (0.0, False),
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            (0.0, True),
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            (0.0, False),
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            ]
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        pin1.assert_states_and_times(test)
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        pin2.assert_states_and_times(test)
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        pin3.assert_states_and_times(test)
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def test_led_board_blink_interrupt_on():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(1, 0.1)
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        sleep(0.2)
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        board.off() # should interrupt while on
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        pin1.assert_states([False, True, False])
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        pin2.assert_states([False, True, False])
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        pin3.assert_states([False, True, False])
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def test_led_board_blink_interrupt_off():
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    pin1 = MockPin(2)
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    pin2 = MockPin(3)
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    pin3 = MockPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3)) as board:
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        board.blink(0.1, 1)
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        sleep(0.2)
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        board.off() # should interrupt while off
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        pin1.assert_states([False, True, False])
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        pin2.assert_states([False, True, False])
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        pin3.assert_states([False, True, False])
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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_led_board_fade_background():
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    pin1 = MockPWMPin(2)
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    pin2 = MockPWMPin(3)
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    pin3 = MockPWMPin(4)
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    with LEDBoard(pin1, LEDBoard(pin2, pin3, pwm=True), pwm=True) as board:
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        board.blink(0, 0, 0.2, 0.2, n=2)
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        board._blink_thread.join()
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        test = [
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            (0.0, 0),
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            (0.04, 0.2),
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            (0.04, 0.4),
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            (0.04, 0.6),
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            (0.04, 0.8),
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            (0.04, 1),
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            (0.04, 0.8),
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            (0.04, 0.6),
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            (0.04, 0.4),
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            (0.04, 0.2),
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            (0.04, 0),
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            (0.04, 0.2),
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            (0.04, 0.4),
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            (0.04, 0.6),
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            (0.04, 0.8),
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            (0.04, 1),
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            (0.04, 0.8),
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            (0.04, 0.6),
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						|
            (0.04, 0.4),
 | 
						|
            (0.04, 0.2),
 | 
						|
            (0.04, 0),
 | 
						|
            ]
 | 
						|
        pin1.assert_states_and_times(test)
 | 
						|
        pin2.assert_states_and_times(test)
 | 
						|
        pin3.assert_states_and_times(test)
 | 
						|
 | 
						|
def test_led_bar_graph_value():
 | 
						|
    pin1 = MockPin(2)
 | 
						|
    pin2 = MockPin(3)
 | 
						|
    pin3 = MockPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3) as graph:
 | 
						|
        assert isinstance(graph[0], LED)
 | 
						|
        assert isinstance(graph[1], LED)
 | 
						|
        assert isinstance(graph[2], LED)
 | 
						|
        assert graph.active_high
 | 
						|
        assert graph[0].active_high
 | 
						|
        assert graph[1].active_high
 | 
						|
        assert graph[2].active_high
 | 
						|
        graph.value = 0
 | 
						|
        assert graph.value == 0
 | 
						|
        assert not any((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1
 | 
						|
        assert graph.value == 1
 | 
						|
        assert all((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1/3
 | 
						|
        assert graph.value == 1/3
 | 
						|
        assert pin1.state and not (pin2.state or pin3.state)
 | 
						|
        graph.value = -1/3
 | 
						|
        assert graph.value == -1/3
 | 
						|
        assert pin3.state and not (pin1.state or pin2.state)
 | 
						|
        pin1.state = True
 | 
						|
        pin2.state = True
 | 
						|
        assert graph.value == 1
 | 
						|
        pin3.state = False
 | 
						|
        assert graph.value == 2/3
 | 
						|
        pin3.state = True
 | 
						|
        pin1.state = False
 | 
						|
        assert graph.value == -2/3
 | 
						|
 | 
						|
def test_led_bar_graph_active_low():
 | 
						|
    pin1 = MockPin(2)
 | 
						|
    pin2 = MockPin(3)
 | 
						|
    pin3 = MockPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, active_high=False) as graph:
 | 
						|
        assert not graph.active_high
 | 
						|
        assert not graph[0].active_high
 | 
						|
        assert not graph[1].active_high
 | 
						|
        assert not graph[2].active_high
 | 
						|
        graph.value = 0
 | 
						|
        assert graph.value == 0
 | 
						|
        assert all((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1
 | 
						|
        assert graph.value == 1
 | 
						|
        assert not any((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1/3
 | 
						|
        assert graph.value == 1/3
 | 
						|
        assert not pin1.state and pin2.state and pin3.state
 | 
						|
        graph.value = -1/3
 | 
						|
        assert graph.value == -1/3
 | 
						|
        assert not pin3.state and pin1.state and pin2.state
 | 
						|
 | 
						|
def test_led_bar_graph_pwm_value():
 | 
						|
    pin1 = MockPWMPin(2)
 | 
						|
    pin2 = MockPWMPin(3)
 | 
						|
    pin3 = MockPWMPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, pwm=True) as graph:
 | 
						|
        assert isinstance(graph[0], PWMLED)
 | 
						|
        assert isinstance(graph[1], PWMLED)
 | 
						|
        assert isinstance(graph[2], PWMLED)
 | 
						|
        graph.value = 0
 | 
						|
        assert graph.value == 0
 | 
						|
        assert not any((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1
 | 
						|
        assert graph.value == 1
 | 
						|
        assert all((pin1.state, pin2.state, pin3.state))
 | 
						|
        graph.value = 1/3
 | 
						|
        assert graph.value == 1/3
 | 
						|
        assert pin1.state and not (pin2.state or pin3.state)
 | 
						|
        graph.value = -1/3
 | 
						|
        assert graph.value == -1/3
 | 
						|
        assert pin3.state and not (pin1.state or pin2.state)
 | 
						|
        graph.value = 1/2
 | 
						|
        assert graph.value == 1/2
 | 
						|
        assert (pin1.state, pin2.state, pin3.state) == (1, 0.5, 0)
 | 
						|
        pin1.state = 0
 | 
						|
        pin3.state = 1
 | 
						|
        assert graph.value == -1/2
 | 
						|
 | 
						|
def test_led_bar_graph_bad_value():
 | 
						|
    pin1 = MockPin(2)
 | 
						|
    pin2 = MockPin(3)
 | 
						|
    pin3 = MockPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3) as graph:
 | 
						|
        with pytest.raises(ValueError):
 | 
						|
            graph.value = -2
 | 
						|
        with pytest.raises(ValueError):
 | 
						|
            graph.value = 2
 | 
						|
 | 
						|
def test_led_bar_graph_bad_init():
 | 
						|
    pin1 = MockPin(2)
 | 
						|
    pin2 = MockPin(3)
 | 
						|
    pin3 = MockPin(4)
 | 
						|
    with pytest.raises(TypeError):
 | 
						|
        LEDBarGraph(pin1, pin2, foo=pin3)
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        LEDBarGraph(pin1, pin2, pin3, initial_value=-2)
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        LEDBarGraph(pin1, pin2, pin3, initial_value=2)
 | 
						|
 | 
						|
def test_led_bar_graph_initial_value():
 | 
						|
    pin1 = MockPin(2)
 | 
						|
    pin2 = MockPin(3)
 | 
						|
    pin3 = MockPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, initial_value=1/3) as graph:
 | 
						|
        assert graph.value == 1/3
 | 
						|
        assert pin1.state and not (pin2.state or pin3.state)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, initial_value=-1/3) as graph:
 | 
						|
        assert graph.value == -1/3
 | 
						|
        assert pin3.state and not (pin1.state or pin2.state)
 | 
						|
 | 
						|
def test_led_bar_graph_pwm_initial_value():
 | 
						|
    pin1 = MockPWMPin(2)
 | 
						|
    pin2 = MockPWMPin(3)
 | 
						|
    pin3 = MockPWMPin(4)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, pwm=True, initial_value=0.5) as graph:
 | 
						|
        assert graph.value == 0.5
 | 
						|
        assert (pin1.state, pin2.state, pin3.state) == (1, 0.5, 0)
 | 
						|
    with LEDBarGraph(pin1, pin2, pin3, pwm=True, initial_value=-0.5) as graph:
 | 
						|
        assert graph.value == -0.5
 | 
						|
        assert (pin1.state, pin2.state, pin3.state) == (0, 0.5, 1)
 | 
						|
 | 
						|
def test_led_borg():
 | 
						|
    pins = [MockPWMPin(n) for n in (17, 27, 22)]
 | 
						|
    with LedBorg() as board:
 | 
						|
        assert [device.pin for device in board._leds] == pins
 | 
						|
 | 
						|
def test_pi_liter():
 | 
						|
    pins = [MockPin(n) for n in (4, 17, 27, 18, 22, 23, 24, 25)]
 | 
						|
    with PiLiter() as board:
 | 
						|
        assert [device.pin for device in board] == pins
 | 
						|
 | 
						|
def test_pi_liter_graph():
 | 
						|
    pins = [MockPin(n) for n in (4, 17, 27, 18, 22, 23, 24, 25)]
 | 
						|
    with PiLiterBarGraph() as board:
 | 
						|
        board.value = 0.5
 | 
						|
        assert [pin.state for pin in pins] == [1, 1, 1, 1, 0, 0, 0, 0]
 | 
						|
        pins[4].state = 1
 | 
						|
        assert board.value == 5/8
 | 
						|
 | 
						|
def test_traffic_lights():
 | 
						|
    red_pin = MockPin(2)
 | 
						|
    amber_pin = MockPin(3)
 | 
						|
    green_pin = MockPin(4)
 | 
						|
    with TrafficLights(red_pin, amber_pin, green_pin) as board:
 | 
						|
        board.red.on()
 | 
						|
        assert board.red.value
 | 
						|
        assert not board.amber.value
 | 
						|
        assert not board.yellow.value
 | 
						|
        assert not board.green.value
 | 
						|
        assert red_pin.state
 | 
						|
        assert not amber_pin.state
 | 
						|
        assert not green_pin.state
 | 
						|
    with TrafficLights(red=red_pin, yellow=amber_pin, green=green_pin) as board:
 | 
						|
        board.yellow.on()
 | 
						|
        assert not board.red.value
 | 
						|
        assert board.amber.value
 | 
						|
        assert board.yellow.value
 | 
						|
        assert not board.green.value
 | 
						|
        assert not red_pin.state
 | 
						|
        assert amber_pin.state
 | 
						|
        assert not green_pin.state
 | 
						|
 | 
						|
def test_traffic_lights_bad_init():
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        TrafficLights()
 | 
						|
    red_pin = MockPin(2)
 | 
						|
    amber_pin = MockPin(3)
 | 
						|
    green_pin = MockPin(4)
 | 
						|
    yellow_pin = MockPin(5)
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        TrafficLights(red=red_pin, amber=amber_pin, yellow=yellow_pin, green=green_pin)
 | 
						|
 | 
						|
def test_pi_traffic():
 | 
						|
    pins = [MockPin(n) for n in (9, 10, 11)]
 | 
						|
    with PiTraffic() as board:
 | 
						|
        assert [device.pin for device in board] == pins
 | 
						|
 | 
						|
def test_snow_pi():
 | 
						|
    pins = [MockPin(n) for n in (23, 24, 25, 17, 18, 22, 7, 8, 9)]
 | 
						|
    with SnowPi() as board:
 | 
						|
        assert [device.pin for device in board.leds] == pins
 | 
						|
 | 
						|
def test_snow_pi_initial_value():
 | 
						|
    with SnowPi() as board:
 | 
						|
        assert all(device.pin.state == False for device in board.leds)
 | 
						|
    with SnowPi(initial_value=False) as board:
 | 
						|
        assert all(device.pin.state == False for device in board.leds)
 | 
						|
    with SnowPi(initial_value=True) as board:
 | 
						|
        assert all(device.pin.state == True for device in board.leds)
 | 
						|
    with SnowPi(initial_value=0.5) as board:
 | 
						|
        assert all(device.pin.state == True for device in board.leds)
 | 
						|
 | 
						|
def test_snow_pi_initial_value_pwm():
 | 
						|
    pins = [MockPWMPin(n) for n in (23, 24, 25, 17, 18, 22, 7, 8, 9)]
 | 
						|
    with SnowPi(pwm=True, initial_value=0.5) as board:
 | 
						|
        assert [device.pin for device in board.leds] == pins
 | 
						|
        assert all(device.pin.state == 0.5 for device in board.leds)
 | 
						|
 | 
						|
def test_traffic_lights_buzzer():
 | 
						|
    red_pin = MockPin(2)
 | 
						|
    amber_pin = MockPin(3)
 | 
						|
    green_pin = MockPin(4)
 | 
						|
    buzzer_pin = MockPin(5)
 | 
						|
    button_pin = MockPin(6)
 | 
						|
    with TrafficLightsBuzzer(
 | 
						|
            TrafficLights(red_pin, amber_pin, green_pin),
 | 
						|
            Buzzer(buzzer_pin),
 | 
						|
            Button(button_pin)) as board:
 | 
						|
        board.lights.red.on()
 | 
						|
        board.buzzer.on()
 | 
						|
        assert red_pin.state
 | 
						|
        assert not amber_pin.state
 | 
						|
        assert not green_pin.state
 | 
						|
        assert buzzer_pin.state
 | 
						|
        button_pin.drive_low()
 | 
						|
        assert board.button.is_active
 | 
						|
 | 
						|
def test_fish_dish():
 | 
						|
    pins = [MockPin(n) for n in (9, 22, 4, 8, 7)]
 | 
						|
    with FishDish() as board:
 | 
						|
        assert [led.pin for led in board.lights] + [board.buzzer.pin, board.button.pin] == pins
 | 
						|
 | 
						|
def test_traffic_hat():
 | 
						|
    pins = [MockPin(n) for n in (24, 23, 22, 5, 25)]
 | 
						|
    with TrafficHat() as board:
 | 
						|
        assert [led.pin for led in board.lights] + [board.buzzer.pin, board.button.pin] == pins
 | 
						|
 | 
						|
def test_robot():
 | 
						|
    pins = [MockPWMPin(n) for n in (2, 3, 4, 5)]
 | 
						|
    with Robot((2, 3), (4, 5)) as robot:
 | 
						|
        assert (
 | 
						|
            [device.pin for device in robot.left_motor] +
 | 
						|
            [device.pin for device in robot.right_motor]) == pins
 | 
						|
        assert robot.value == (0, 0)
 | 
						|
        robot.forward()
 | 
						|
        assert [pin.state for pin in pins] == [1, 0, 1, 0]
 | 
						|
        assert robot.value == (1, 1)
 | 
						|
        robot.backward()
 | 
						|
        assert [pin.state for pin in pins] == [0, 1, 0, 1]
 | 
						|
        assert robot.value == (-1, -1)
 | 
						|
        robot.forward(0.5)
 | 
						|
        assert [pin.state for pin in pins] == [0.5, 0, 0.5, 0]
 | 
						|
        assert robot.value == (0.5, 0.5)
 | 
						|
        robot.left()
 | 
						|
        assert [pin.state for pin in pins] == [0, 1, 1, 0]
 | 
						|
        assert robot.value == (-1, 1)
 | 
						|
        robot.right()
 | 
						|
        assert [pin.state for pin in pins] == [1, 0, 0, 1]
 | 
						|
        assert robot.value == (1, -1)
 | 
						|
        robot.reverse()
 | 
						|
        assert [pin.state for pin in pins] == [0, 1, 1, 0]
 | 
						|
        assert robot.value == (-1, 1)
 | 
						|
        robot.stop()
 | 
						|
        assert [pin.state for pin in pins] == [0, 0, 0, 0]
 | 
						|
        assert robot.value == (0, 0)
 | 
						|
        robot.value = (-1, -1)
 | 
						|
        assert robot.value == (-1, -1)
 | 
						|
        robot.value = (0.5, 1)
 | 
						|
        assert robot.value == (0.5, 1)
 | 
						|
        robot.value = (0, -0.5)
 | 
						|
        assert robot.value == (0, -0.5)
 | 
						|
 | 
						|
def test_ryanteck_robot():
 | 
						|
    pins = [MockPWMPin(n) for n in (17, 18, 22, 23)]
 | 
						|
    with RyanteckRobot() as board:
 | 
						|
        assert [device.pin for motor in board for device in motor] == pins
 | 
						|
 | 
						|
def test_camjam_kit_robot():
 | 
						|
    pins = [MockPWMPin(n) for n in (9, 10, 7, 8)]
 | 
						|
    with CamJamKitRobot() as board:
 | 
						|
        assert [device.pin for motor in board for device in motor] == pins
 | 
						|
 | 
						|
def test_energenie_bad_init():
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        Energenie()
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        Energenie(0)
 | 
						|
    with pytest.raises(ValueError):
 | 
						|
        Energenie(5)
 | 
						|
 | 
						|
def test_energenie():
 | 
						|
    pins = [MockPin(n) for n in (17, 22, 23, 27, 24, 25)]
 | 
						|
    with Energenie(1, initial_value=True) as device1, \
 | 
						|
            Energenie(2, initial_value=False) as device2:
 | 
						|
        assert repr(device1) == '<gpiozero.Energenie object on socket 1>'
 | 
						|
        assert repr(device2) == '<gpiozero.Energenie object on socket 2>'
 | 
						|
        assert device1.value
 | 
						|
        assert not device2.value
 | 
						|
        [pin.clear_states() for pin in pins]
 | 
						|
        device1.on()
 | 
						|
        assert device1.value
 | 
						|
        pins[0].assert_states_and_times([(0.0, False), (0.0, True)])
 | 
						|
        pins[1].assert_states_and_times([(0.0, True), (0.0, True)])
 | 
						|
        pins[2].assert_states_and_times([(0.0, True), (0.0, True)])
 | 
						|
        pins[3].assert_states_and_times([(0.0, False), (0.0, True)])
 | 
						|
        pins[4].assert_states_and_times([(0.0, False)])
 | 
						|
        pins[5].assert_states_and_times([(0.0, False), (0.1, True), (0.25, False)])
 | 
						|
        [pin.clear_states() for pin in pins]
 | 
						|
        device2.on()
 | 
						|
        assert device2.value
 | 
						|
        pins[0].assert_states_and_times([(0.0, True), (0.0, False)])
 | 
						|
        pins[1].assert_states_and_times([(0.0, True), (0.0, True)])
 | 
						|
        pins[2].assert_states_and_times([(0.0, True), (0.0, True)])
 | 
						|
        pins[3].assert_states_and_times([(0.0, True), (0.0, True)])
 | 
						|
        pins[4].assert_states_and_times([(0.0, False)])
 | 
						|
        pins[5].assert_states_and_times([(0.0, False), (0.1, True), (0.25, False)])
 | 
						|
        device1.close()
 | 
						|
        assert repr(device1) == '<gpiozero.Energenie object closed>'
 |