adafruit-beaglebone-io-python/test/test_gpio_setup.py
Drew Fustini 713cafa28e Workaround test failure until TIMERn bug is fixed
Replace GPIO for test "TIMER6" with "P8_10" as TIMERn syntax
is not working on newer kernels such as 4.4.

This is a valid path:
/sys/devices/platform/ocp/ocp:P8_10_pinmux/state

while this path is invalid:
/sys/devices/platform/ocp/ocp:TIMER_pinmux/state

Originally discovered while testing Pull Request #152.
See issue #156 for details.
2017-08-23 07:59:56 +00:00

91 lines
3.2 KiB
Python

import pytest
import os
import platform
import Adafruit_BBIO.GPIO as GPIO
kernel = platform.release()
def teardown_module(module):
GPIO.cleanup()
class TestSetup:
def test_setup_output_key(self):
GPIO.setup("P8_10", GPIO.OUT)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'out\n'
GPIO.cleanup()
def test_setup_output_name(self):
# WARNING: TIMERn syntax is not working on newer kernels
# such as 4.4. Originally discovered while testing
# Pull Request #152. See issue #156 for details.
#GPIO.setup("TIMER6", GPIO.OUT)
GPIO.setup("P8_10", GPIO.OUT)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'out\n'
GPIO.cleanup()
def test_setup_input_key(self):
GPIO.setup("P8_10", GPIO.IN)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'in\n'
GPIO.cleanup()
def test_setup_input_name(self):
# WARNING: TIMERn syntax is not working on newer kernels
# such as 4.4. Originally discovered while testing
# Pull Request #152. See issue #156 for details.
#GPIO.setup("TIMER6", GPIO.IN)
GPIO.setup("P8_10", GPIO.IN)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'in\n'
GPIO.cleanup()
def test_setup_input_pull_up(self):
GPIO.setup("P8_10", GPIO.IN, pull_up_down=GPIO.PUD_UP)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'in\n'
GPIO.cleanup()
def test_setup_input_pull_down(self):
GPIO.setup("P8_10", GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
assert os.path.exists('/sys/class/gpio/gpio68')
direction = open('/sys/class/gpio/gpio68/direction').read()
assert direction == 'in\n'
GPIO.cleanup()
def test_setup_cleanup(self):
GPIO.setup("P8_10", GPIO.OUT)
assert os.path.exists('/sys/class/gpio/gpio68')
GPIO.cleanup()
if kernel < '4.1.0':
assert not os.path.exists('/sys/class/gpio/gpio68')
# for later kernels, the universal capemanager always loads the
# UARTs.
def test_setup_failed_type_error(self):
with pytest.raises(TypeError):
GPIO.setup("P8_10", "WEIRD")
GPIO.cleanup()
def test_setup_failed_value_error(self):
with pytest.raises(ValueError):
GPIO.setup("P8_10", 3)
GPIO.cleanup()
def test_setup_three_digit_gpio(self):
GPIO.setup("P9_31", GPIO.OUT)
assert os.path.exists('/sys/class/gpio/gpio110')
GPIO.cleanup()
if kernel < '4.1.0':
assert not os.path.exists('/sys/class/gpio/gpio110')
# for later kernels, the universal capemanager always loads the
# UARTs.