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captured packets and simulate what server would send

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This commit is contained in:
Mike Kinney
2021-12-25 16:19:13 -08:00
parent 988540c77d
commit 580c081303
2 changed files with 34 additions and 5 deletions
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7
meshtastic/stream_interface.py
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@@ -38,8 +38,6 @@ class StreamInterface(MeshInterface):
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)
@@ -105,6 +103,7 @@ class StreamInterface(MeshInterface):
bufLen = len(b)
# We convert into a string, because the TCP code doesn't work with byte arrays
header = bytes([START1, START2, (bufLen >> 8) & 0xff, bufLen & 0xff])
logging.debug(f'sending header:{header} b:{b}')
self._writeBytes(header + b)
def close(self):
@@ -127,9 +126,10 @@ class StreamInterface(MeshInterface):
logging.debug("reading character")
b = self._readBytes(1)
logging.debug("In reader loop")
logging.debug(f"read returned {b}")
#logging.debug(f"read returned {b}")
if len(b) > 0:
c = b[0]
#logging.debug(f'c:{c}')
ptr = len(self._rxBuf)
# Assume we want to append this byte, fixme use bytearray instead
@@ -148,6 +148,7 @@ 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
#logging.debug('at least we received a header')
# big endian length follows header
packetlen = (self._rxBuf[2] << 8) + self._rxBuf[3]

32
meshtastic/tests/test_stream_interface.py
View File

@@ -27,7 +27,7 @@ def test_StreamInterface_with_noProto(caplog, reset_globals):
test_data = b'hello'
stream.read.return_value = test_data
with caplog.at_level(logging.DEBUG):
iface = StreamInterface(noProto=True)
iface = StreamInterface(noProto=True, connectNow=False)
iface.stream = stream
iface._writeBytes(test_data)
data = iface._readBytes(len(test_data))
@@ -35,12 +35,39 @@ def test_StreamInterface_with_noProto(caplog, reset_globals):
# Note: This takes a bit, so moving from unit to slow
# Tip: If you want to see the print output, run with '-s' flag:
# pytest -s meshtastic/tests/test_stream_interface.py::test_sendToRadioImpl
@pytest.mark.unitslow
def test_sendToRadioImpl(caplog, reset_globals):
"""Test _sendToRadioImpl()"""
# def add_header(b):
# """Add header stuffs for radio"""
# bufLen = len(b)
# header = bytes([START1, START2, (bufLen >> 8) & 0xff, bufLen & 0xff])
# return header + b
# captured raw bytes of a Heltec2.1 radio with 2 channels (primary and a secondary channel named "gpio")
raw_1_my_info = b'\x1a,\x08\xdc\x8c\xd5\xc5\x02\x18\r2\x0e1.2.49.5354c49P\x15]\xe1%\x17Eh\xe0\xa7\x12p\xe8\x9d\x01x\x08\x90\x01\x01'
raw_2_node_info = b'"9\x08\xdc\x8c\xd5\xc5\x02\x12(\n\t!28b5465c\x12\x0cUnknown 465c\x1a\x03?5C"\x06$o(\xb5F\\0\n\x1a\x02 1%M<\xc6a'
# pylint: disable=C0301
raw_3_node_info = b'"C\x08\xa4\x8c\xd5\xc5\x02\x12(\n\t!28b54624\x12\x0cUnknown 4624\x1a\x03?24"\x06$o(\xb5F$0\n\x1a\x07 5MH<\xc6a%G<\xc6a=\x00\x00\xc0@'
raw_4_complete = b'@\xcf\xe5\xd1\x8c\x0e'
# pylint: disable=C0301
raw_5_prefs = b'Z6\r\\F\xb5(\x15\\F\xb5("\x1c\x08\x06\x12\x13*\x11\n\x0f0\x84\x07P\xac\x02\x88\x01\x01\xb0\t#\xb8\t\x015]$\xddk5\xd5\x7f!b=M<\xc6aP\x03`F'
# pylint: disable=C0301
raw_6_channel0 = b'Z.\r\\F\xb5(\x15\\F\xb5("\x14\x08\x06\x12\x0b:\t\x12\x05\x18\x01"\x01\x01\x18\x015^$\xddk5\xd6\x7f!b=M<\xc6aP\x03`F'
# pylint: disable=C0301
raw_7_channel1 = b'ZS\r\\F\xb5(\x15\\F\xb5("9\x08\x06\x120:.\x08\x01\x12(" \xb4&\xb3\xc7\x06\xd8\xe39%\xba\xa5\xee\x8eH\x06\xf6\xf4H\xe8\xd5\xc1[ao\xb5Y\\\xb4"\xafmi*\x04gpio\x18\x025_$\xddk5\xd7\x7f!b=M<\xc6aP\x03`F'
raw_8_channel2 = b'Z)\r\\F\xb5(\x15\\F\xb5("\x0f\x08\x06\x12\x06:\x04\x08\x02\x12\x005`$\xddk5\xd8\x7f!b=M<\xc6aP\x03`F'
raw_blank = b''
test_data = b'hello'
stream = MagicMock()
stream.read.return_value = test_data
#stream.read.return_value = add_header(test_data)
stream.read.side_effect = [ raw_1_my_info, raw_2_node_info, raw_3_node_info, raw_4_complete,
raw_5_prefs, raw_6_channel0, raw_7_channel1, raw_8_channel2,
raw_blank, raw_blank]
toRadio = MagicMock()
toRadio.SerializeToString.return_value = test_data
with caplog.at_level(logging.DEBUG):
@@ -51,3 +78,4 @@ def test_sendToRadioImpl(caplog, reset_globals):
assert re.search(r'Sending: ', caplog.text, re.MULTILINE)
assert re.search(r'reading character', caplog.text, re.MULTILINE)
assert re.search(r'In reader loop', caplog.text, re.MULTILINE)
print(caplog.text)