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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#! /usr/bin/env python
"""Test the arraymodule.
Roger E. Masse
"""
import array
from test_support import verbose, TESTFN, unlink, TestFailed
def main():
testtype('c', 'c')
for type in (['b', 'h', 'i', 'l', 'f', 'd']):
testtype(type, 1)
unlink(TESTFN)
def testoverflow(type, lowerLimit, upperLimit):
# should not overflow assigning lower limit
if verbose:
print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
try:
a = array.array(type, [lowerLimit])
except:
raise TestFailed, "array(%s) overflowed assigning %s" %\
(`type`, `lowerLimit`)
# should overflow assigning less than lower limit
if verbose:
print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
try:
a = array.array(type, [lowerLimit-1])
raise TestFailed, "array(%s) did not overflow assigning %s" %\
(`type`, `lowerLimit-1`)
except OverflowError:
pass
# should not overflow assigning upper limit
if verbose:
print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
try:
a = array.array(type, [upperLimit])
except:
raise TestFailed, "array(%s) overflowed assigning %s" %\
(`type`, `upperLimit`)
# should overflow assigning more than upper limit
if verbose:
print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
try:
a = array.array(type, [upperLimit+1])
raise TestFailed, "array(%s) did not overflow assigning %s" %\
(`type`, `upperLimit+1`)
except OverflowError:
pass
def testtype(type, example):
a = array.array(type)
a.append(example)
if verbose:
print 40*'*'
print 'array after append: ', a
a.typecode
a.itemsize
if a.typecode in ('i', 'b', 'h', 'l'):
a.byteswap()
if a.typecode == 'c':
f = open(TESTFN, "w")
f.write("The quick brown fox jumps over the lazy dog.\n")
f.close()
f = open(TESTFN, 'r')
a.fromfile(f, 10)
f.close()
if verbose:
print 'char array with 10 bytes of TESTFN appended: ', a
a.fromlist(['a', 'b', 'c'])
if verbose:
print 'char array with list appended: ', a
a.insert(0, example)
if verbose:
print 'array of %s after inserting another:' % a.typecode, a
f = open(TESTFN, 'w')
a.tofile(f)
f.close()
a.tolist()
a.tostring()
if verbose:
print 'array of %s converted to a list: ' % a.typecode, a.tolist()
if verbose:
print 'array of %s converted to a string: ' \
% a.typecode, `a.tostring()`
if type == 'c':
a = array.array(type, "abcde")
a[:-1] = a
if a != array.array(type, "abcdee"):
raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
a = array.array(type, "abcde")
a[1:] = a
if a != array.array(type, "aabcde"):
raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
a = array.array(type, "abcde")
a[1:-1] = a
if a != array.array(type, "aabcdee"):
raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
if a.index("e") != 5:
raise TestFailed, "array(%s) index-test" % `type`
if a.count("a") != 2:
raise TestFailed, "array(%s) count-test" % `type`
a.remove("e")
if a != array.array(type, "aabcde"):
raise TestFailed, "array(%s) remove-test" % `type`
if a.pop(0) != "a":
raise TestFailed, "array(%s) pop-test" % `type`
if a.pop(1) != "b":
raise TestFailed, "array(%s) pop-test" % `type`
a.extend(array.array(type, "xyz"))
if a != array.array(type, "acdexyz"):
raise TestFailed, "array(%s) extend-test" % `type`
a.pop()
a.pop()
a.pop()
a.pop()
if a != array.array(type, "acd"):
raise TestFailed, "array(%s) pop-test" % `type`
else:
a = array.array(type, [1, 2, 3, 4, 5])
a[:-1] = a
if a != array.array(type, [1, 2, 3, 4, 5, 5]):
raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
a = array.array(type, [1, 2, 3, 4, 5])
a[1:] = a
if a != array.array(type, [1, 1, 2, 3, 4, 5]):
raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
a = array.array(type, [1, 2, 3, 4, 5])
a[1:-1] = a
if a != array.array(type, [1, 1, 2, 3, 4, 5, 5]):
raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
if a.index(5) != 5:
raise TestFailed, "array(%s) index-test" % `type`
if a.count(1) != 2:
raise TestFailed, "array(%s) count-test" % `type`
a.remove(5)
if a != array.array(type, [1, 1, 2, 3, 4, 5]):
raise TestFailed, "array(%s) remove-test" % `type`
if a.pop(0) != 1:
raise TestFailed, "array(%s) pop-test" % `type`
if a.pop(1) != 2:
raise TestFailed, "array(%s) pop-test" % `type`
a.extend(array.array(type, [7, 8, 9]))
if a != array.array(type, [1, 3, 4, 5, 7, 8, 9]):
raise TestFailed, "array(%s) extend-test" % `type`
a.pop()
a.pop()
a.pop()
a.pop()
if a != array.array(type, [1, 3, 4]):
raise TestFailed, "array(%s) pop-test" % `type`
# test that overflow exceptions are raised as expected for assignment
# to array of specific integral types
from math import pow
if type in ('b', 'h', 'i', 'l'):
# check signed and unsigned versions
a = array.array(type)
signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
unsignedLowerLimit = 0
unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
testoverflow(type, signedLowerLimit, signedUpperLimit)
testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
main()
|
