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# vim: set fileencoding=utf-8:
#
# GPIO Zero: a library for controlling the Raspberry Pi's GPIO pins
#
# Copyright (c) 2016-2021 Dave Jones <dave@waveform.org.uk>
# Copyright (c) 2016-2019 Andrew Scheller <github@loowis.durge.org>
#
# SPDX-License-Identifier: BSD-3-Clause
from __future__ import (
unicode_literals,
absolute_import,
print_function,
division,
)
str = type('')
from threading import Event
from time import sleep
import pytest
from gpiozero import *
from gpiozero.pins.mock import *
def test_mock_pin_init(mock_factory):
with pytest.raises(ValueError):
Device.pin_factory.pin(60)
assert Device.pin_factory.pin(2).number == 2
def test_mock_pin_defaults(mock_factory):
pin = Device.pin_factory.pin(4)
assert pin.bounce == None
assert pin.edges == 'both'
assert pin.frequency == None
assert pin.function == 'input'
assert pin.pull == 'floating'
assert pin.state == 0
assert pin.when_changed == None
pin.close()
pin = Device.pin_factory.pin(2)
assert pin.pull == 'up'
def test_mock_pin_open_close(mock_factory):
pin = Device.pin_factory.pin(2)
pin.close()
def test_mock_pin_init_twice_same_pin(mock_factory):
pin1 = Device.pin_factory.pin(2)
pin2 = Device.pin_factory.pin(pin1.number)
assert pin1 is pin2
def test_mock_pin_init_twice_different_pin(mock_factory):
pin1 = Device.pin_factory.pin(2)
pin2 = Device.pin_factory.pin(pin1.number+1)
assert pin1 != pin2
assert pin1.number == 2
assert pin2.number == pin1.number+1
def test_mock_pwm_pin_defaults(mock_factory):
pin = Device.pin_factory.pin(4, pin_class=MockPWMPin)
assert pin.bounce == None
assert pin.edges == 'both'
assert pin.frequency == None
assert pin.function == 'input'
assert pin.pull == 'floating'
assert pin.state == 0
assert pin.when_changed == None
pin.close()
pin = Device.pin_factory.pin(2, pin_class=MockPWMPin)
assert pin.pull == 'up'
def test_mock_pwm_pin_open_close(mock_factory):
pin = Device.pin_factory.pin(2, pin_class=MockPWMPin)
pin.close()
def test_mock_pwm_pin_init_twice_same_pin(mock_factory):
pin1 = Device.pin_factory.pin(2, pin_class=MockPWMPin)
pin2 = Device.pin_factory.pin(pin1.number, pin_class=MockPWMPin)
assert pin1 is pin2
def test_mock_pwm_pin_init_twice_different_pin(mock_factory):
pin1 = Device.pin_factory.pin(2, pin_class=MockPWMPin)
pin2 = Device.pin_factory.pin(pin1.number + 1, pin_class=MockPWMPin)
assert pin1 != pin2
assert pin1.number == 2
assert pin2.number == pin1.number+1
def test_mock_pin_init_twice_different_modes(mock_factory):
pin1 = Device.pin_factory.pin(2, pin_class=MockPin)
pin2 = Device.pin_factory.pin(pin1.number + 1, pin_class=MockPWMPin)
assert pin1 != pin2
with pytest.raises(ValueError):
Device.pin_factory.pin(pin1.number, pin_class=MockPWMPin)
with pytest.raises(ValueError):
Device.pin_factory.pin(pin2.number, pin_class=MockPin)
def test_mock_pin_frequency_unsupported(mock_factory):
pin = Device.pin_factory.pin(2)
pin.frequency = None
with pytest.raises(PinPWMUnsupported):
pin.frequency = 100
def test_mock_pin_frequency_supported(mock_factory):
pin = Device.pin_factory.pin(2, pin_class=MockPWMPin)
pin.function = 'output'
assert pin.frequency is None
pin.frequency = 100
pin.state = 0.5
pin.frequency = None
assert not pin.state
def test_mock_pin_pull(mock_factory):
pin = Device.pin_factory.pin(4)
pin.function = 'input'
assert pin.pull == 'floating'
pin.pull = 'up'
assert pin.state
pin.pull = 'down'
assert not pin.state
with pytest.raises(PinInvalidPull):
pin.pull = 'foo'
pin.function = 'output'
with pytest.raises(PinFixedPull):
pin.pull = 'floating'
pin.close()
pin = Device.pin_factory.pin(2)
pin.function = 'input'
assert pin.pull == 'up'
with pytest.raises(PinFixedPull):
pin.pull = 'floating'
def test_mock_pin_state(mock_factory):
pin = Device.pin_factory.pin(2)
with pytest.raises(PinSetInput):
pin.state = 1
pin.function = 'output'
pin.state = 1
assert pin.state == 1
pin.state = 0
assert pin.state == 0
pin.state = 0.5
assert pin.state == 1
def test_mock_pin_connected_state(mock_factory):
input_pin = Device.pin_factory.pin(4)
pin2 = Device.pin_factory.pin(5, pin_class=MockConnectedPin, input_pin=input_pin)
pin3 = Device.pin_factory.pin(6, pin_class=MockConnectedPin)
input_pin.function = 'input'
pin2.function = 'output'
pin3.function = 'output'
pin2.state = 0
assert input_pin.state == 0
pin2.state = 1
assert input_pin.state == 1
pin3.state = 0
assert input_pin.state == 1
pin3.state = 1
assert input_pin.state == 1
def test_mock_pin_functions(mock_factory):
pin = Device.pin_factory.pin(2)
assert pin.function == 'input'
pin.function = 'output'
assert pin.function == 'output'
pin.function = 'input'
assert pin.function == 'input'
with pytest.raises(ValueError):
pin.function = 'foo'
def test_mock_pwm_pin_state(mock_factory):
pin = Device.pin_factory.pin(2, pin_class=MockPWMPin)
with pytest.raises(PinSetInput):
pin.state = 1
pin.function = 'output'
pin.state = 1
assert pin.state == 1
pin.state = 0
assert pin.state == 0
pin.state = 0.5
assert pin.state == 0.5
def test_mock_pin_edges(mock_factory):
pin = Device.pin_factory.pin(2)
assert pin.when_changed is None
fired = Event()
pin.function = 'input'
pin.edges = 'both'
assert pin.edges == 'both'
pin.drive_low()
assert not pin.state
def changed(ticks, state):
fired.set()
pin.when_changed = changed
pin.drive_high()
assert pin.state
assert fired.is_set()
fired.clear()
pin.edges = 'falling'
pin.drive_low()
assert not pin.state
assert fired.is_set()
fired.clear()
pin.drive_high()
assert pin.state
assert not fired.is_set()
assert pin.edges == 'falling'
def test_mock_charging_pin(mock_factory):
pin = Device.pin_factory.pin(4, pin_class=MockChargingPin, charge_time=1)
pin.function = 'input'
assert pin.state == 0
pin.function = 'output'
assert pin.state == 0
pin.close()
mock_factory.reset()
pin = Device.pin_factory.pin(4, pin_class=MockChargingPin, charge_time=0.01)
pin.function = 'input'
sleep(0.1)
assert pin.state == 1
pin.function = 'output'
pin.state = 0
pin.function = 'output'
assert pin.state == 0
pin.function = 'input'
sleep(0.1)
assert pin.state == 1
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