def list_i2c_devices():
i2c_devices_attached = []
dev = atlas_i2c.AtlasI2C()
for device in deviceName.keys():
try:
dev = atlas_i2c.AtlasI2C()
dev.set_i2c_address(device)
dev.read("R")
i2c_devices_attached.append(device)
print("Found " + str(deviceName[device]))
except IOError:
pass
return i2c_devices_attached
def test_read(self, good_response, error_response, no_data_response,
not_ready_response):
for response in (good_response, error_response, no_data_response,
not_ready_response):
device_file = io.BytesIO(response)
dev = atlas_i2c.AtlasI2C(device_file=device_file)
dev.address = 102
response = dev.read(original_cmd="R")
assert isinstance(response, atlas_i2c.CommandResponse)
def __init__(self,
name: str,
address: int = 102,
commands: List = None,
i2c_client=None):
self.name = name
self.address = address
self.commands = commands
self.client = i2c_client
if not self.commands:
self.commands = []
if not self.client:
self.client = atlas_i2c.AtlasI2C()
def test_query_with_args(self):
device_file = io.BytesIO()
i2c_client = atlas_i2c.AtlasI2C(device_file=device_file)
i2c_client.query = Mock()
response = atlas_i2c.CommandResponse()
response.sensor_name = "test-sensor"
response.sensor_address = 102
response.original_command = "S,?"
response.response_type = str
response.response_data = "?S,c"
i2c_client.query.return_value = response
sensor = sensors.Sensor("test-sensor", i2c_client=i2c_client)
result = sensor.query(commands.SCALE, arguments="?")
assert isinstance(result, atlas_i2c.CommandResponse)
assert result == response
def test_query_with_nonexisting_command(self):
device_file = io.BytesIO()
i2c_client = atlas_i2c.AtlasI2C(device_file=device_file)
sensor = sensors.Sensor("test-sensor", i2c_client=i2c_client)
with pytest.raises(AttributeError) as ex:
sensor.query("eat")
def test_write(self, command):
device_file = io.BytesIO()
dev = atlas_i2c.AtlasI2C(device_file=device_file)
dev.address = 102
dev.write(command)