def test_sequence_counter(self):
seq = stentura._SequenceCounter()
actual = [seq() for x in xrange(512)]
expected = range(256) * 2
self.assertEqual(actual, expected)
seq = stentura._SequenceCounter(67)
actual = [seq() for x in xrange(512)]
expected = range(67, 256) + range(256) + range(67)
self.assertEqual(actual, expected)
def test_sequence_counter(self):
seq = stentura._SequenceCounter()
actual = [seq() for x in xrange(512)]
expected = range(256) * 2
self.assertEqual(actual, expected)
seq = stentura._SequenceCounter(67)
actual = [seq() for x in xrange(512)]
expected = range(67, 256) + range(256) + range(67)
self.assertEqual(actual, expected)
def test_read(self):
request_buf = array.array('B')
response_buf = array.array('B')
stroke_buf = array.array('B')
event = threading.Event()
tests = ([0b11000001] * (3 * 512 + 28), [0b11010101] * 4,
[0b11000010] * 8)
for data in tests:
data = str(buffer(array.array('B', data)))
requests, responses = make_readc_packets(data)
port = MockPacketPort(responses, requests)
seq = stentura._SequenceCounter()
response = stentura._read(port, event, seq, request_buf,
response_buf, stroke_buf)
self.assertEqual(data, str(response))
def test_read(self):
request_buf = array.array('B')
response_buf = array.array('B')
stroke_buf = array.array('B')
event = threading.Event()
tests = ([0b11000001] * (3 * 512 + 28), [0b11010101] * 4,
[0b11000010] * 8)
for data in tests:
data = str(buffer(array.array('B', data)))
requests, responses = make_readc_packets(data)
port = MockPacketPort(responses, requests)
seq = stentura._SequenceCounter()
response = stentura._read(port, event, seq, request_buf,
response_buf, stroke_buf)
self.assertEqual(data, str(response))
def make_readc_packets(data):
requests, responses = [], []
seq = stentura._SequenceCounter()
buf = array.array('B')
block, byte = 0, 0
while data:
s = seq()
chunk = buffer(data, 0, 512)
data = buffer(data, 512)
q = stentura._make_read(buf, s, block, byte)
requests.append(str(q))
r = make_read_response(s, chunk)
responses.append(str(r))
byte += len(chunk)
if byte >= 512:
block += 1
byte -= 512
s = seq()
q = stentura._make_read(buf, s, block, byte)
requests.append(str(q))
r = make_read_response(s)
responses.append(str(r))
return requests, responses
def make_readc_packets(data):
requests, responses = [], []
seq = stentura._SequenceCounter()
buf = array.array('B')
block, byte = 0, 0
while data:
s = seq()
chunk = buffer(data, 0, 512)
data = buffer(data, 512)
q = stentura._make_read(buf, s, block, byte)
requests.append(str(q))
r = make_read_response(s, chunk)
responses.append(str(r))
byte += len(chunk)
if byte >= 512:
block += 1
byte -= 512
s = seq()
q = stentura._make_read(buf, s, block, byte)
requests.append(str(q))
r = make_read_response(s)
responses.append(str(r))
return requests, responses