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import sys
import pytest
from ctypes import c_float
import sdl2
from sdl2 import SDL_Init, SDL_Quit, SDL_INIT_SENSOR
from sdl2.events import SDL_QUERY, SDL_ENABLE, SDL_IGNORE
from sdl2.stdinc import SDL_TRUE, SDL_FALSE
from sdl2.error import SDL_GetError, SDL_ClearError
from sdl2 import sensor
# Make sure sensor subsystem is available and works before running tests
available = sdl2.dll.version >= 2009
ret = SDL_Init(SDL_INIT_SENSOR)
SDL_Quit()
skipmsg = 'Sensor subsystem not supported'
pytestmark = pytest.mark.skipif(ret != 0 or not available, reason=skipmsg)
def test_SDL_NumSensors():
ret = SDL_Init(SDL_INIT_SENSOR)
assert ret == 0
retval = sensor.SDL_NumSensors()
SDL_Quit()
assert retval >= 0
skipmsg = "sensor subsystem not supported"
@pytest.mark.skipif(SDL_Init(SDL_INIT_SENSOR) != 0, reason=skipmsg)
class TestSDLSensor(object):
__tags__ = ["sdl"]
@classmethod
def setup_class(cls):
SDL_Init(SDL_INIT_SENSOR)
num = sensor.SDL_NumSensors()
if num < 1:
pytest.skip("no available sensor devices")
cls.scount = num
@classmethod
def teardown_class(cls):
SDL_Quit()
def setup_method(self):
SDL_ClearError()
def test_SDL_SensorOpenClose(self):
for index in range(self.scount):
s = sensor.SDL_SensorOpen(index)
assert isinstance(s.contents, sensor.SDL_Sensor)
sensor.SDL_SensorClose(s)
def test_SDL_SensorFromInstanceID(self):
for index in range(self.scount):
iid = sensor.SDL_SensorGetDeviceInstanceID(index)
s = sensor.SDL_SensorFromInstanceID(iid)
assert isinstance(s.contents, sensor.SDL_Sensor)
sensor.SDL_SensorClose(s)
def test_SDL_SensorUpdate(self):
sensor.SDL_SensorUpdate()
def test_SDL_SensorDeviceInfo(self):
types = {
sensor.SDL_SENSOR_INVALID: "Invalid",
sensor.SDL_SENSOR_UNKNOWN: "Unknown",
sensor.SDL_SENSOR_ACCEL: "Accelerometer",
sensor.SDL_SENSOR_GYRO: "Gyroscope"
}
for index in range(self.scount):
name = sensor.SDL_SensorGetDeviceName(index)
assert type(name) in (str, bytes)
dtype = sensor.SDL_SensorGetDeviceType(index)
assert dtype in list(types.keys())
nptype = sensor.SDL_SensorGetDeviceNonPortableType(index)
assert type(nptype) == int
iid = sensor.SDL_SensorGetDeviceInstanceID(index)
assert type(iid) == int
def test_SDL_SensorInfo(self):
sensors = []
types = {
sensor.SDL_SENSOR_INVALID: "Invalid",
sensor.SDL_SENSOR_UNKNOWN: "Unknown",
sensor.SDL_SENSOR_ACCEL: "Accelerometer",
sensor.SDL_SENSOR_GYRO: "Gyroscope"
}
for index in range(self.scount):
dtype = sensor.SDL_SensorGetDeviceType(index)
if dtype in [sensor.SDL_SENSOR_INVALID, sensor.SDL_SENSOR_UNKNOWN]:
continue
s = sensor.SDL_SensorOpen(index)
name = sensor.SDL_SensorGetName(s)
assert type(name) in (str, bytes)
dtype = sensor.SDL_SensorGetType(s)
assert dtype in list(types.keys())
nptype = sensor.SDL_SensorGetNonPortableType(s)
assert type(nptype) == int
iid = sensor.SDL_SensorGetInstanceID(s)
assert type(iid) == int
sensor.SDL_SensorUpdate()
data = c_float(-0.00323) # Set a random initial value
assert sensor.SDL_SensorGetData(s, data, 1) == 0
assert data.value != -0.00323
sensor.SDL_SensorClose(s)
s_info = {
'name': name.decode('utf-8'), 'type': types[dtype],
'np': nptype, 'id': iid, 'data': data.value
}
sensors.append(s_info)
if len(sensors):
print("Available sensors:")
for s in sensors:
print(" '{0}' (ID: {1}):".format(s['name'], s['id']))
print(" - Sensor Type: {0}".format(s['type']))
print(" - Non-Portable Type: {0}".format(s['nptype']))
print(" - Current X Value: {0}".format(s['data']))
@pytest.mark.skipif(sdl2.dll.version < 2014, reason="not available")
def test_SDL_LockUnlockSensors(self):
# NOTE: not sure how better to test these, since I don't know if
# they'd even be useful at all in Python given the GIL
sensor.SDL_LockSensors()
sensor.SDL_UnlockSensors()
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