def _execute_cmd(self, raw_cmd, errcheck=True):
"""
Takes a string command and executes it on Newport
:param str raw_cmd:
:param bool errcheck:
:return: response of device
:rtype: `str`
"""
query_resp = None
if "?" in raw_cmd:
query_resp = self.query(raw_cmd)
else:
self.sendcmd(raw_cmd)
if errcheck:
err_resp = self.query('TB?')
# pylint: disable=unused-variable
code, timestamp, msg = err_resp.split(",")
code = int(code)
if code != 0:
raise NewportError(code)
return query_resp
def stop_motion(self):
"""
Stop all motion on axis. With programmed deceleration rate
"""
try:
self._newport_cmd("ST", target=self.axis_id)
except NewportError as e:
raise NewportError(e)
def test_axis():
"""Get axis for given error code."""
cls = NewportError(errcode=313)
assert cls.axis == cls._axis
def test_timestamp():
"""Get the timestamp for a given error."""
cls = NewportError()
assert cls.timestamp == cls._timestamp
def test_errcode():
"""Get the error code reported by device."""
cls = NewportError(errcode=7)
assert cls.errcode == cls._errcode
def test_get_message():
"""Get the message for a given error code."""
err_code = "7"
cls = NewportError()
assert cls.get_message(err_code) == cls.messageDict[err_code]
def test_init_with_error_code_axis():
"""Initialize with axis-specific error code."""
err_code = 313 # ax 3 not enabled
cls = NewportError(errcode=err_code)
assert cls._axis == 3
assert cls._errcode == 13
def test_init_with_error_code():
"""Initialize with non-axis specific error code."""
err_code = 7 # parameter out of range
cls = NewportError(errcode=err_code)
assert cls._axis is None
assert cls._errcode == 7
def test_init_with_timestamp():
"""Initialized with a time stamp."""
timestamp = datetime.datetime.now()
cls = NewportError(timestamp=timestamp)
assert isinstance(cls._timestamp, datetime.timedelta)
def test_init_none():
"""Initialized with both arguments as `None`."""
cls = NewportError()
assert isinstance(cls._timestamp, datetime.timedelta)
assert cls._errcode is None
assert cls._axis is None