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Code Issues Releases Activity

checking in debug stuff for the hw pwm issue #17

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This commit is contained in:
Robert Wolterman
2016-09-24 14:22:05 -05:00
parent c8e4323c27
commit 82d6fef173
4 changed files with 223 additions and 26 deletions
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52
test/test_pwm_setup.py
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@ -2,12 +2,15 @@ import pytest
import os
import CHIP_IO.PWM as PWM
import CHIP_IO.OverlayManager as OM
def teardown_module(module):
PWM.cleanup()
OM.unload("PWM0")
class TestPwmSetup:
def test_start_pwm(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
pwm_test = '/sys/class/pwm/pwmchip0/pwm0'
@ -18,8 +21,10 @@ class TestPwmSetup:
assert int(duty) == 0
assert int(period) == 500000
PWM.cleanup()
OM.unload("PWM0")
def test_start_pwm_with_polarity_one(self):
OM.load("PWM0")
PWM.start("PWM0", 0, 2000, 1)
pwm_test = '/sys/class/pwm/pwmchip0/pwm0'
@ -32,8 +37,10 @@ class TestPwmSetup:
assert int(period) == 500000
assert str(polarity) == "inverted"
PWM.cleanup()
OM.unload("PWM0")
def test_start_pwm_with_polarity_default(self):
OM.load("PWM0")
PWM.start("PWM0", 0, 2000, 0)
pwm_test = '/sys/class/pwm/pwmchip0/pwm0'
@ -46,8 +53,10 @@ class TestPwmSetup:
assert int(period) == 500000
assert str(polarity) == "normal"
PWM.cleanup()
OM.unload("PWM0")
def test_start_pwm_with_polarity_zero(self):
OM.load("PWM0")
PWM.start("PWM0", 0, 2000, 0)
pwm_test = '/sys/class/pwm/pwmchip0/pwm0'
@ -60,54 +69,78 @@ class TestPwmSetup:
assert int(period) == 500000
assert str(polarity) == "normal"
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_start_invalid_pwm_key(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("P8_25", -1)
OM.unload("PWM0")
def test_pwm_start_invalid_duty_cycle_negative(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("PWM0", -1)
OM.unload("PWM0")
def test_pwm_start_valid_duty_cycle_min(self):
#testing an exception isn't thrown
OM.load("PWM0")
PWM.start("PWM0", 0)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_start_valid_duty_cycle_max(self):
#testing an exception isn't thrown
OM.load("PWM0")
PWM.start("PWM0", 100)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_start_invalid_duty_cycle_high(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("PWM0", 101)
OM.unload("PWM0")
def test_pwm_start_invalid_duty_cycle_string(self):
with pytest.raises(TypeError):
OM.load("PWM0")
PWM.start("PWM0", "1")
OM.unload("PWM0")
def test_pwm_start_invalid_frequency_negative(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("PWM0", 0, -1)
OM.unload("PWM0")
def test_pwm_start_invalid_frequency_string(self):
with pytest.raises(TypeError):
OM.load("PWM0")
PWM.start("PWM0", 0, "1")
OM.unload("PWM0")
def test_pwm_start_negative_polarity(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("PWM0", 0, 100, -1)
OM.unload("PWM0")
def test_pwm_start_invalid_positive_polarity(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.start("PWM0", 0, 100, 2)
OM.unload("PWM0")
def test_pwm_start_invalid_polarity_type(self):
with pytest.raises(TypeError):
OM.load("PWM0")
PWM.start("PWM0", 0, 100, "1")
OM.unload("PWM0")
def test_pwm_duty_modified(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
pwm_test = '/sys/class/pwm/pwmchip0/pwm0'
@ -124,56 +157,75 @@ class TestPwmSetup:
assert int(duty) == 500000
assert int(period) == 500000
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_duty_cycle_non_setup_key(self):
with pytest.raises(RuntimeError):
OM.load("PWM0")
PWM.set_duty_cycle("PWM0", 100)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_duty_cycle_invalid_key(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.set_duty_cycle("P9_15", 100)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_duty_cycle_invalid_value_high(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
with pytest.raises(ValueError):
PWM.set_duty_cycle("PWM0", 101)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_duty_cycle_invalid_value_negative(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
with pytest.raises(ValueError):
PWM.set_duty_cycle("PWM0", -1)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_duty_cycle_invalid_value_string(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
with pytest.raises(TypeError):
PWM.set_duty_cycle("PWM0", "a")
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_frequency_invalid_value_negative(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
with pytest.raises(ValueError):
PWM.set_frequency("PWM0", -1)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_frequency_invalid_value_string(self):
OM.load("PWM0")
PWM.start("PWM0", 0)
with pytest.raises(TypeError):
PWM.set_frequency("PWM0", "11")
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_freq_non_setup_key(self):
with pytest.raises(RuntimeError):
OM.load("PWM0")
PWM.set_frequency("PWM0", 100)
PWM.cleanup()
OM.unload("PWM0")
def test_pwm_freq_non_setup_key(self):
with pytest.raises(ValueError):
OM.load("PWM0")
PWM.set_frequency("P9_15", 100)
PWM.cleanup()
OM.unload("PWM0")
def test_stop_pwm(self):
pass