mirror/python
1
0
Fork 0
mirror of https://github.com/meshtastic/python.git synced 2026-04-18 13:57:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

figured out how to unit test __reader()

Browse Source
This commit is contained in:
Mike Kinney
2021-12-25 11:39:04 -08:00
parent 9fea479af4
commit a243fab9af
4 changed files with 73 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
meshtastic/stream_interface.py
View File

@@ -24,7 +24,6 @@ class StreamInterface(MeshInterface):
"""Constructor, opens a connection to self.stream
Keyword Arguments:
devPath {string} -- A filepath to a device, i.e. /dev/ttyUSB0 (default: {None})
debugOut {stream} -- If a stream is provided, any debug serial output from the
device will be emitted to that stream. (default: {None})
@@ -33,15 +32,16 @@ class StreamInterface(MeshInterface):
Exception: [description]
"""
if not hasattr(self, 'stream'):
if not hasattr(self, 'stream') and not noProto:
raise Exception(
"StreamInterface is now abstract (to update existing code create SerialInterface instead)")
self._rxBuf = bytes() # empty
self._wantExit = False
self.stream = None
# FIXME, figure out why daemon=True causes reader thread to exit too early
self._rxThread = threading.Thread(
target=self.__reader, args=(), daemon=True)
self._rxThread = threading.Thread(target=self.__reader, args=(), daemon=True)
MeshInterface.__init__(self, debugOut=debugOut, noProto=noProto)
@@ -93,7 +93,10 @@ class StreamInterface(MeshInterface):
def _readBytes(self, length):
"""Read an array of bytes from our stream"""
return self.stream.read(length)
if self.stream:
return self.stream.read(length)
else:
return None
def _sendToRadioImpl(self, toRadio):
"""Send a ToRadio protobuf to the device"""
@@ -116,14 +119,15 @@ class StreamInterface(MeshInterface):
def __reader(self):
"""The reader thread that reads bytes from our stream"""
logging.debug('in __reader()')
empty = bytes()
try:
while not self._wantExit:
# logging.debug("reading character")
logging.debug("reading character")
b = self._readBytes(1)
# logging.debug("In reader loop")
# logging.debug(f"read returned {b}")
logging.debug("In reader loop")
logging.debug(f"read returned {b}")
if len(b) > 0:
c = b[0]
ptr = len(self._rxBuf)
@@ -144,12 +148,12 @@ class StreamInterface(MeshInterface):
if c != START2:
self._rxBuf = empty # failed to find start2
elif ptr >= HEADER_LEN - 1: # we've at least got a header
# big endian length follos header
# big endian length follows header
packetlen = (self._rxBuf[2] << 8) + self._rxBuf[3]
if ptr == HEADER_LEN - 1: # we _just_ finished reading the header, validate length
if packetlen > MAX_TO_FROM_RADIO_SIZE:
self._rxBuf = empty # length ws out out bounds, restart
self._rxBuf = empty # length was out out bounds, restart
if len(self._rxBuf) != 0 and ptr + 1 >= packetlen + HEADER_LEN:
try: