1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
# Copyright (C) 2016
# Author: Martin Basti <martin.basti@gmail.com>
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
import unittest
from dns.exception import FormError
from dns.wiredata import WireData
class WireDataSlicingTestCase(unittest.TestCase):
def testSliceAll(self):
"""Get all data"""
inst = WireData(b'0123456789')
self.assertEqual(inst[:], WireData(b'0123456789'))
def testSliceAllExplicitlyDefined(self):
"""Get all data"""
inst = WireData(b'0123456789')
self.assertEqual(inst[0:10], WireData(b'0123456789'))
def testSliceLowerHalf(self):
"""Get lower half of data"""
inst = WireData(b'0123456789')
self.assertEqual(inst[:5], WireData(b'01234'))
def testSliceLowerHalfWithNegativeIndex(self):
"""Get lower half of data"""
inst = WireData(b'0123456789')
self.assertEqual(inst[:-5], WireData(b'01234'))
def testSliceUpperHalf(self):
"""Get upper half of data"""
inst = WireData(b'0123456789')
self.assertEqual(inst[5:], WireData(b'56789'))
def testSliceMiddle(self):
"""Get data from middle"""
inst = WireData(b'0123456789')
self.assertEqual(inst[3:6], WireData(b'345'))
def testSliceMiddleWithNegativeIndex(self):
"""Get data from middle"""
inst = WireData(b'0123456789')
self.assertEqual(inst[-6:-3], WireData(b'456'))
def testSliceMiddleWithMixedIndex(self):
"""Get data from middle"""
inst = WireData(b'0123456789')
self.assertEqual(inst[-8:3], WireData(b'2'))
self.assertEqual(inst[5:-3], WireData(b'56'))
def testGetOne(self):
"""Get data one by one item"""
data = b'0123456789'
inst = WireData(data)
for i, byte in enumerate(data):
self.assertEqual(inst[i], byte)
for i in range(-1, len(data) * -1, -1):
self.assertEqual(inst[i], data[i])
def testEmptySlice(self):
"""Test empty slice"""
data = b'0123456789'
inst = WireData(data)
for i, byte in enumerate(data):
self.assertEqual(inst[i:i], b'')
for i in range(-1, len(data) * -1, -1):
self.assertEqual(inst[i:i], b'')
self.assertEqual(inst[-3:-6], b'')
def testSliceStartOutOfLowerBorder(self):
"""Get data from out of lower border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[-11:] # pylint: disable=pointless-statement
def testSliceStopOutOfLowerBorder(self):
"""Get data from out of lower border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[:-11] # pylint: disable=pointless-statement
def testSliceBothOutOfLowerBorder(self):
"""Get data from out of lower border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[-12:-11] # pylint: disable=pointless-statement
def testSliceStartOutOfUpperBorder(self):
"""Get data from out of upper border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[11:] # pylint: disable=pointless-statement
def testSliceStopOutOfUpperBorder(self):
"""Get data from out of upper border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[:11] # pylint: disable=pointless-statement
def testSliceBothOutOfUpperBorder(self):
"""Get data from out of lower border"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[10:20] # pylint: disable=pointless-statement
def testGetOneOutOfLowerBorder(self):
"""Get item outside of range"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[-11] # pylint: disable=pointless-statement
def testGetOneOutOfUpperBorder(self):
"""Get item outside of range"""
inst = WireData(b'0123456789')
with self.assertRaises(FormError):
inst[10] # pylint: disable=pointless-statement
|
