mirror of
https://github.com/KevinMidboe/python-gpiozero.git
synced 2025-10-29 17:50:37 +00:00
e8dbe5e3d6
Doing timing tests on pypy (for blink) just doesn't work; even with a tolerance as coarse as tens-of-milliseconds, things fail. I guess that isn't too surprising given that, as the tests are one off things the pypy JIT is never getting a chance to spin up and do its stuff.
480 lines
12 KiB
Python
480 lines
12 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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from time import sleep
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try:
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from math import isclose
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except ImportError:
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from gpiozero.compat import isclose
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import pytest
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from gpiozero.pins.mock import MockPin, MockPWMPin
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from gpiozero import *
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def test_output_initial_values():
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pin = MockPin(2)
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device = OutputDevice(pin, initial_value=False)
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assert pin.function == 'output'
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assert not pin.state
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device.close()
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device = OutputDevice(pin, initial_value=True)
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assert pin.state
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device.close()
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state = pin.state
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device = OutputDevice(pin, initial_value=None)
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assert state == pin.state
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def test_output_write_active_high():
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pin = MockPin(2)
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device = OutputDevice(pin)
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device.on()
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assert pin.state
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device.off()
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assert not pin.state
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def test_output_write_active_low():
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pin = MockPin(2)
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device = OutputDevice(pin, active_high=False)
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device.on()
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assert not pin.state
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device.off()
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assert pin.state
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def test_output_write_closed():
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device = OutputDevice(MockPin(2))
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device.close()
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with pytest.raises(GPIODeviceClosed):
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device.on()
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def test_output_write_silly():
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pin = MockPin(2)
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device = OutputDevice(pin)
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pin.function = 'input'
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with pytest.raises(AttributeError):
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device.on()
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def test_output_value():
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pin = MockPin(2)
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device = OutputDevice(pin)
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assert not device.value
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assert not pin.state
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device.on()
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assert device.value
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assert pin.state
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device.value = False
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assert not device.value
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assert not pin.state
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def test_output_digital_toggle():
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pin = MockPin(2)
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device = DigitalOutputDevice(pin)
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assert not device.value
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assert not pin.state
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device.toggle()
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assert device.value
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assert pin.state
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device.toggle()
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assert not device.value
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assert not pin.state
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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_output_blink_background():
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pin = MockPin(2)
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device = DigitalOutputDevice(pin)
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device.blink(0.1, 0.1, n=2)
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device._blink_thread.join() # naughty, but ensures no arbitrary waits in the test
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pin.assert_states_and_times([
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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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@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_output_blink_foreground():
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pin = MockPin(2)
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device = DigitalOutputDevice(pin)
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device.blink(0.1, 0.1, n=2, background=False)
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pin.assert_states_and_times([
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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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def test_output_blink_interrupt_on():
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pin = MockPin(2)
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device = DigitalOutputDevice(pin)
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device.blink(1, 0.1)
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sleep(0.2)
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device.off() # should interrupt while on
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pin.assert_states([False, True, False])
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def test_output_blink_interrupt_off():
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pin = MockPin(2)
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device = DigitalOutputDevice(pin)
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device.blink(0.1, 1)
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sleep(0.2)
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device.off() # should interrupt while off
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pin.assert_states([False, True, False])
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def test_output_pwm_bad_initial_value():
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with pytest.raises(ValueError):
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PWMOutputDevice(MockPin(2), initial_value=2)
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def test_output_pwm_not_supported():
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with pytest.raises(AttributeError):
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PWMOutputDevice(MockPin(2))
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def test_output_pwm_states():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.value = 0.1
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device.value = 0.2
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device.value = 0.0
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pin.assert_states([0.0, 0.1, 0.2, 0.0])
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def test_output_pwm_read():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin, frequency=100)
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assert device.frequency == 100
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device.value = 0.1
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assert isclose(device.value, 0.1)
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assert isclose(pin.state, 0.1)
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assert device.is_active
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device.frequency = None
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assert not device.value
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assert not device.is_active
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assert device.frequency is None
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def test_output_pwm_write():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.on()
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device.off()
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pin.assert_states([False, True, False])
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def test_output_pwm_toggle():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.toggle()
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device.value = 0.5
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device.value = 0.1
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device.toggle()
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device.off()
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pin.assert_states([False, True, 0.5, 0.1, 0.9, False])
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def test_output_pwm_active_high_read():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin, active_high=False)
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device.value = 0.1
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assert isclose(device.value, 0.1)
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assert isclose(pin.state, 0.9)
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device.frequency = None
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assert device.value
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def test_output_pwm_bad_value():
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with pytest.raises(ValueError):
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PWMOutputDevice(MockPWMPin(2)).value = 2
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def test_output_pwm_write_closed():
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device = PWMOutputDevice(MockPWMPin(2))
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device.close()
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with pytest.raises(GPIODeviceClosed):
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device.on()
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def test_output_pwm_write_silly():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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pin.function = 'input'
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with pytest.raises(AttributeError):
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device.off()
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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_output_pwm_blink_background():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.blink(0.1, 0.1, n=2)
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device._blink_thread.join()
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pin.assert_states_and_times([
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(0.0, 0),
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(0.0, 1),
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(0.1, 0),
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(0.1, 1),
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(0.1, 0)
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])
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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_output_pwm_blink_foreground():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.blink(0.1, 0.1, n=2, background=False)
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pin.assert_states_and_times([
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(0.0, 0),
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(0.0, 1),
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(0.1, 0),
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(0.1, 1),
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(0.1, 0)
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])
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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_output_pwm_fade_background():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.blink(0, 0, 0.1, 0.1, n=2)
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device._blink_thread.join()
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pin.assert_states_and_times([
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(0.0, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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])
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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_output_pwm_fade_foreground():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.blink(0, 0, 0.1, 0.1, n=2, background=False)
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pin.assert_states_and_times([
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(0.0, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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])
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def test_output_pwm_blink_interrupt():
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pin = MockPWMPin(2)
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device = PWMOutputDevice(pin)
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device.blink(1, 0.1)
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sleep(0.2)
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device.off() # should interrupt while on
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pin.assert_states([0, 1, 0])
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def test_rgbled_missing_pins():
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with pytest.raises(ValueError):
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RGBLED()
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def test_rgbled_initial_value():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b, initial_value=(0.1, 0.2, 0))
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assert r.frequency
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assert g.frequency
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assert b.frequency
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assert isclose(r.state, 0.1)
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assert isclose(g.state, 0.2)
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assert isclose(b.state, 0.0)
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def test_rgbled_value():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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assert not device.is_active
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assert device.value == (0, 0, 0)
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device.on()
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assert device.is_active
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assert device.value == (1, 1, 1)
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device.off()
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assert not device.is_active
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assert device.value == (0, 0, 0)
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def test_rgbled_toggle():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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assert not device.is_active
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assert device.value == (0, 0, 0)
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device.toggle()
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assert device.is_active
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assert device.value == (1, 1, 1)
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device.toggle()
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assert not device.is_active
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assert device.value == (0, 0, 0)
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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_rgbled_blink_background():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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device.blink(0.1, 0.1, n=2)
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device._blink_thread.join()
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expected = [
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(0.0, 0),
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(0.0, 1),
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(0.1, 0),
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(0.1, 1),
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(0.1, 0)
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]
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r.assert_states_and_times(expected)
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g.assert_states_and_times(expected)
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b.assert_states_and_times(expected)
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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_rgbled_blink_foreground():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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device.blink(0.1, 0.1, n=2, background=False)
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expected = [
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(0.0, 0),
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(0.0, 1),
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(0.1, 0),
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(0.1, 1),
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(0.1, 0)
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]
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r.assert_states_and_times(expected)
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g.assert_states_and_times(expected)
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b.assert_states_and_times(expected)
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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_rgbled_fade_background():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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device.blink(0, 0, 0.1, 0.1, n=2)
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device._blink_thread.join()
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expected = [
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(0.0, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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(0.02, 0.2),
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(0.02, 0.4),
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(0.02, 0.6),
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(0.02, 0.8),
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(0.02, 1),
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(0.02, 0.8),
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(0.02, 0.6),
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(0.02, 0.4),
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(0.02, 0.2),
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(0.02, 0),
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]
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r.assert_states_and_times(expected)
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g.assert_states_and_times(expected)
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b.assert_states_and_times(expected)
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def test_output_rgbled_blink_interrupt():
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r, g, b = (MockPWMPin(i) for i in (1, 2, 3))
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device = RGBLED(r, g, b)
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device.blink(1, 0.1)
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sleep(0.2)
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device.off() # should interrupt while on
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r.assert_states([0, 1, 0])
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g.assert_states([0, 1, 0])
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b.assert_states([0, 1, 0])
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def test_motor_missing_pins():
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with pytest.raises(ValueError):
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Motor()
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def test_motor_pins():
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f = MockPWMPin(1)
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b = MockPWMPin(2)
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device = Motor(f, b)
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assert device.forward_device.pin is f
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assert device.backward_device.pin is b
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def test_motor_close():
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f = MockPWMPin(1)
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b = MockPWMPin(2)
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device = Motor(f, b)
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device.close()
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assert device.closed
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assert device.forward_device.pin is None
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assert device.backward_device.pin is None
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def test_motor_value():
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f = MockPWMPin(1)
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b = MockPWMPin(2)
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device = Motor(f, b)
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device.value = -1
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assert device.is_active
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assert device.value == -1
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assert b.state == 1 and f.state == 0
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device.value = 1
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assert device.is_active
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assert device.value == 1
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assert b.state == 0 and f.state == 1
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device.value = 0.5
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assert device.is_active
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assert device.value == 0.5
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assert b.state == 0 and f.state == 0.5
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device.value = 0
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assert not device.is_active
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assert not device.value
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assert b.state == 0 and f.state == 0
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def test_motor_bad_value():
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f = MockPWMPin(1)
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b = MockPWMPin(2)
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device = Motor(f, b)
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with pytest.raises(ValueError):
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device.value = 2
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def test_motor_reverse():
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f = MockPWMPin(1)
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b = MockPWMPin(2)
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device = Motor(f, b)
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device.forward()
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assert device.value == 1
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assert b.state == 0 and f.state == 1
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device.reverse()
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assert device.value == -1
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assert b.state == 1 and f.state == 0
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