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"""Unit tests for the uosc.server module."""
import time
import unittest
from struct import pack
from uosc.common import Impulse, ISIZE, NTP_DELTA, TimetagNow
from uosc.server import parse_bundle, parse_message
typegen = type((lambda: (yield))())
class TestParseMessage(unittest.TestCase):
def assertMessage(self, expected, *args):
self.assertEqual(parse_message(*args), expected)
def assertError(self, exc, *args):
self.assertRaises(exc, parse_message, *args)
def test_parse_address(self):
self.assertEqual(parse_message(b'/nil\0\0\0\0,\0\0\0')[0], '/nil')
self.assertEqual(parse_message(b'/*\0\0,\0\0\0')[0], '/*')
def test_parse_address_invalid(self):
self.assertError(ValueError, b'nil\0,\0\0\0')
def test_parse_typetags(self):
self.assertEqual(parse_message(b'/i\0\0,i\0\0\0\0\0*')[1], 'i')
self.assertEqual(parse_message(b'/is\0,is\0\0\0\0*foo\0')[1], 'is')
self.assertEqual(parse_message(b'/nil\0\0\0\0,\0\0\0')[1], '')
def test_parse_no_typetags(self):
_, tags, args = parse_message(b'/nt\0')
self.assertEqual(tags, '')
self.assertEqual(args, ())
_, tags, args = parse_message(b'/nt\0\0\0\0*')
self.assertEqual(tags, '')
self.assertEqual(args, ())
def test_parse_message_int(self):
self.assertMessage(('/i', 'i', (42,)), b'/i\0\0,i\0\0\0\0\0*')
def test_parse_message_float(self):
self.assertMessage(('/f', 'f', (42.0,)), b'/f\0\0,f\0\0B(\0\0')
def test_parse_message_str(self):
self.assertMessage(('/s', 's', ('foo',)), b'/s\0\0,s\0\0foo\0')
def test_parse_message_blob(self):
self.assertMessage(('/b', 'b', (b'\xDE\xAD\xBE\xEF',)),
b'/b\0\0,b\0\0\0\0\0\x04\xDE\xAD\xBE\xEF')
def test_parse_message_double(self):
self.assertMessage(('/d', 'd', (42.0,)), b'/d\0\0,d\0\0@E\0\0\0\0\0\0')
def test_parse_message_true(self):
self.assertMessage(('/T', 'T', (True,)), b'/T\0\0,T\0\0')
def test_parse_message_false(self):
self.assertMessage(('/F', 'F', (False,)), b'/F\0\0,F\0\0')
def test_parse_message_none(self):
self.assertMessage(('/N', 'N', (None,)), b'/N\0\0,N\0\0')
def test_parse_message_impulse(self):
self.assertMessage(('/I', 'I', (Impulse,)), b'/I\0\0,I\0\0')
def test_parse_message_midi(self):
self.assertMessage(('/midi', 'm', ((0, 0xB0, 32, 0),)),
b'/midi\0\0\0,m\0\0\0\xB0 \0')
def test_parse_message_rgba(self):
self.assertMessage(('/rgba', 'r', ((128, 32, 32, 255),)),
b'/rgba\0\0\0,r\0\0\x80 \xFF')
def test_parse_message_symbol(self):
self.assertMessage(('/S', 'S', ('SPAMM',)), b'/S\0\0,S\0\0SPAMM\0\0\0')
def test_parse_message_char(self):
self.assertMessage(('/c', 'c', ('x',)), b'/c\0\0,c\0\0\0\0\0x')
def test_parse_message_bigint(self):
self.assertMessage(('/h', 'h', (42,)), b'/h\0\0,h\0\0\0\0\0\0\0\0\0*')
def test_parse_message_combi(self):
addr, tags, args = parse_message(
b'/big\0\0\0\0,iisbff\0\0\0\x03\xe8\xff\xff\xff\xffhello'
b'\0\0\0\0\0\0\x06\0\x01\x02\x03\x04\x05\0\0'
b'?\x9d\xf3\xb6@\xb5\xb2-')
self.assertEqual(addr, '/big')
self.assertEqual(tags, 'iisbff')
self.assertEqual((1000, -1, 'hello', b'\x00\x01\x02\x03\x04\x05'),
args[:-2])
self.assertAlmostEqual(args[-2], 1.234)
self.assertAlmostEqual(args[-1], 5.678)
def test_parse_message_timetag(self):
ntpnow = time.time() + NTP_DELTA
sec = int(ntpnow)
tt = pack(">II", sec, int(abs(ntpnow - sec) * ISIZE))
self.assertMessage(('/tt', 't', (ntpnow,)), b'/tt\0,t\0\0' + tt)
def test_parse_message_timetag_now(self):
self.assertMessage(('/tt', 't', (TimetagNow,)), b'/tt\0,t\0\0\0\0\0\0\0\0\x00\x01')
class TestParseBundle(unittest.TestCase):
timetag = 3657147741.6552954
data1 = (b'#bundle\x00\xd9\xfb\xa5]\xa7\xc1p\x00\x00\x00\x00\x10'
b'/test1\x00\x00,i\x00\x00\x00\x00\x00*\x00\x00\x00\x10'
b'/test2\x00\x00,f\x00\x00@I\x06%\x00\x00\x00\x14'
b'/test3\x00\x00,s\x00\x00hello\x00\x00\x00')
data2 = (b'#bundle\x00\xd9\xfb\xa5]\xa7\xc1p\x00\x00\x00\x00\x10'
b'/test1\x00\x00,i\x00\x00\x00\x00\x00*'
b'\x00\x00\x00$#bundle\x00\xd9\xfb\xa5]\xa7\xc1p\x00'
b'\x00\x00\x00\x10/test2\x00\x00,f\x00\x00@I\x06%')
def test_parse_bundle_nobundle(self):
self.assertRaises(TypeError, next, parse_bundle(b''))
self.assertRaises(TypeError, next, parse_bundle(b'/test1'))
def test_parse_bundle_returns_generator(self):
biter = parse_bundle(self.data1)
self.assertTrue(isinstance(biter, typegen))
def test_parse_bundle_structure(self):
# parsing flat bundle
elements = list(parse_bundle(self.data1))
self.assertEqual(len(elements), 3)
self.assertTrue(isinstance(elements[0], tuple))
self.assertEqual(len(elements[0]), 2)
self.assertTrue(isinstance(elements[0][0], float))
self.assertTrue(isinstance(elements[0][1], tuple))
self.assertEqual(len(elements[0][1]), 3)
self.assertTrue(isinstance(elements[0][1][2], tuple))
self.assertEqual(elements[0][0], elements[1][0],
"timetag of first and second bundle element differ")
self.assertEqual(elements[0][0], elements[2][0],
"timetag of first and third bundle element differ")
# parsing nested bundle
elements = list(parse_bundle(self.data2))
self.assertEqual(len(elements), 2)
self.assertTrue(isinstance(elements[0], tuple))
self.assertEqual(len(elements[0]), 2)
self.assertTrue(isinstance(elements[0][0], float))
self.assertTrue(isinstance(elements[0][1], tuple))
self.assertEqual(len(elements[0][1]), 3)
self.assertTrue(isinstance(elements[0][1][2], tuple))
self.assertEqual(elements[0][0], elements[1][0],
"timetag of first element and element from nested bundle differ")
def test_parse_bundle_elements(self):
# parsing flat bundle
elements = list(parse_bundle(self.data1))
self.assertAlmostEqual(elements[0][0], self.timetag, places=5)
self.assertEqual(elements[0][1], ('/test1', 'i', (42,)))
self.assertAlmostEqual(elements[1][0], self.timetag, places=5)
self.assertEqual(elements[1][1][:2], ('/test2', 'f'))
self.assertAlmostEqual(elements[2][0], self.timetag, places=5)
self.assertAlmostEqual(elements[1][1][2][0], 3.141, places=3)
self.assertEqual(elements[2][1], ('/test3', 's', ('hello',)))
if __name__ == '__main__':
unittest.main()