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import unittest
import random
import math
import io
from . import tnetstring
import struct
MAXINT = 2 ** (struct.Struct('i').size * 8 - 1) - 1
FORMAT_EXAMPLES = {
b'0:}': {},
b'0:]': [],
b'51:5:hello,39:11:12345678901#4:this,4:true!0:~4:\x00\x00\x00\x00,]}':
{'hello': [12345678901, b'this', True, None, b'\x00\x00\x00\x00']},
b'5:12345#': 12345,
b'12:this is cool,': b'this is cool',
b'0:,': b'',
b'0:~': None,
b'4:true!': True,
b'5:false!': False,
b'10:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,': b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
b'24:5:12345#5:67890#5:xxxxx,]': [12345, 67890, b'xxxxx'],
b'18:3:0.1^3:0.2^3:0.3^]': [0.1, 0.2, 0.3],
b'243:238:233:228:223:218:213:208:203:198:193:188:183:178:173:168:163:158:153:148:143:138:133:128:123:118:113:108:103:99:95:91:87:83:79:75:71:67:63:59:55:51:47:43:39:35:31:27:23:19:15:11:hello-there,]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]': [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[b'hello-there']]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
}
def get_random_object(random=random, depth=0):
"""Generate a random serializable object."""
# The probability of generating a scalar value increases as the depth increase.
# This ensures that we bottom out eventually.
if random.randint(depth,10) <= 4:
what = random.randint(0,1)
if what == 0:
n = random.randint(0,10)
l = []
for _ in range(n):
l.append(get_random_object(random,depth+1))
return l
if what == 1:
n = random.randint(0,10)
d = {}
for _ in range(n):
n = random.randint(0,100)
k = str([random.randint(32,126) for _ in range(n)])
d[k] = get_random_object(random,depth+1)
return d
else:
what = random.randint(0,4)
if what == 0:
return None
if what == 1:
return True
if what == 2:
return False
if what == 3:
if random.randint(0,1) == 0:
return random.randint(0,MAXINT)
else:
return -1 * random.randint(0,MAXINT)
n = random.randint(0,100)
return bytes([random.randint(32,126) for _ in range(n)])
class Test_Format(unittest.TestCase):
def test_roundtrip_format_examples(self):
for data, expect in FORMAT_EXAMPLES.items():
self.assertEqual(expect,tnetstring.loads(data))
self.assertEqual(expect,tnetstring.loads(tnetstring.dumps(expect)))
self.assertEqual((expect,b''),tnetstring.pop(data))
def test_roundtrip_format_random(self):
for _ in range(500):
v = get_random_object()
self.assertEqual(v,tnetstring.loads(tnetstring.dumps(v)))
self.assertEqual((v,b""),tnetstring.pop(tnetstring.dumps(v)))
def test_unicode_handling(self):
with self.assertRaises(ValueError):
tnetstring.dumps("hello")
self.assertEqual(tnetstring.dumps("hello".encode()),b"5:hello,")
self.assertEqual(type(tnetstring.loads(b"5:hello,")),bytes)
def test_roundtrip_format_unicode(self):
for _ in range(500):
v = get_random_object()
self.assertEqual(v,tnetstring.loads(tnetstring.dumps(v)))
self.assertEqual((v,b''),tnetstring.pop(tnetstring.dumps(v)))
def test_roundtrip_big_integer(self):
i1 = math.factorial(30000)
s = tnetstring.dumps(i1)
i2 = tnetstring.loads(s)
self.assertEqual(i1, i2)
class Test_FileLoading(unittest.TestCase):
def test_roundtrip_file_examples(self):
for data, expect in FORMAT_EXAMPLES.items():
s = io.BytesIO()
s.write(data)
s.write(b'OK')
s.seek(0)
self.assertEqual(expect,tnetstring.load(s))
self.assertEqual(b'OK',s.read())
s = io.BytesIO()
tnetstring.dump(expect,s)
s.write(b'OK')
s.seek(0)
self.assertEqual(expect,tnetstring.load(s))
self.assertEqual(b'OK',s.read())
def test_roundtrip_file_random(self):
for _ in range(500):
v = get_random_object()
s = io.BytesIO()
tnetstring.dump(v,s)
s.write(b'OK')
s.seek(0)
self.assertEqual(v,tnetstring.load(s))
self.assertEqual(b'OK',s.read())
def test_error_on_absurd_lengths(self):
s = io.BytesIO()
s.write(b'1000000000:pwned!,')
s.seek(0)
with self.assertRaises(ValueError):
tnetstring.load(s)
self.assertEqual(s.read(1),b':')
def suite():
loader = unittest.TestLoader()
suite = unittest.TestSuite()
suite.addTest(loader.loadTestsFromTestCase(Test_Format))
suite.addTest(loader.loadTestsFromTestCase(Test_FileLoading))
return suite
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