Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_array.py @ 22360:c8a6ea00a9e1 legacy-trunk

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restructure a bit to not rely on test case execution ordering add test case for bug #482460
author Skip Montanaro <skip@pobox.com>
date Sun, 17 Mar 2002 23:03:42 +0000
parents 966725095854
children 7e5141b68c5f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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6b765453b041 module to test the arraymodule created and added to testall.py
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1 #! /usr/bin/env python
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2 """Test the arraymodule.
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3 Roger E. Masse
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4 """
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5 import array
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e59b835ad89a a bold attempt to fix things broken by MAL's verify patch: import
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6 from test_support import verbose, TESTFN, unlink, TestFailed
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7
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8 def main():
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9 testtype('c', 'c')
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10 testtype('u', u'\u263a')
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11 for type in (['b', 'h', 'i', 'l', 'f', 'd']):
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12 testtype(type, 1)
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13 testunicode()
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14 testsubclassing()
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15 unlink(TESTFN)
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16
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17 def testunicode():
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18 try:
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19 array.array('b', u'foo')
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20 except TypeError:
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21 pass
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22 else:
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23 raise TestFailed("creating a non-unicode array from "
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24 "a Unicode string should fail")
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25
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26 x = array.array('u', u'\xa0\xc2\u1234')
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27 x.fromunicode(u' ')
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28 x.fromunicode(u'')
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29 x.fromunicode(u'')
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30 x.fromunicode(u'\x11abc\xff\u1234')
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31 s = x.tounicode()
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32 if s != u'\xa0\xc2\u1234 \x11abc\xff\u1234':
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33 raise TestFailed("fromunicode()/tounicode()")
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34
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35 s = u'\x00="\'a\\b\x80\xff\u0000\u0001\u1234'
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36 a = array.array('u', s)
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37 if verbose:
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38 print "repr of type 'u' array:", repr(a)
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39 print " expected: array('u', %r)" % s
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40
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41 def testsubclassing():
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42 class EditableString(array.array):
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43 def __new__(cls, s, *args, **kwargs):
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44 return array.array.__new__(cls, 'c', s)
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45
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46 def __init__(self, s, color='blue'):
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47 array.array.__init__(self, 'c', s)
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48 self.color = color
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49
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50 def strip(self):
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51 self[:] = array.array('c', self.tostring().strip())
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52
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53 def __repr__(self):
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54 return 'EditableString(%r)' % self.tostring()
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55
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56 s = EditableString("\ttest\r\n")
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57 s.strip()
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58 if s.tostring() != 'test':
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59 raise TestFailed, "subclassing array.array failed somewhere"
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60 if s.color != 'blue':
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61 raise TestFailed, "assigning attributes to instance of array subclass"
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62 s.color = 'red'
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63 if s.color != 'red':
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64 raise TestFailed, "assigning attributes to instance of array subclass"
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65 if s.__dict__.keys() != ['color']:
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66 raise TestFailed, "array subclass __dict__"
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67
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68 class ExaggeratingArray(array.array):
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69 __slots__ = ['offset']
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70
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71 def __new__(cls, typecode, data, offset):
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72 return array.array.__new__(cls, typecode, data)
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73
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74 def __init__(self, typecode, data, offset):
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75 self.offset = offset
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76
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77 def __getitem__(self, i):
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78 return array.array.__getitem__(self, i) + self.offset
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79
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80 a = ExaggeratingArray('i', [3, 6, 7, 11], 4)
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81 if a[0] != 7:
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82 raise TestFailed, "array subclass overriding __getitem__"
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83 try:
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84 a.color = 'blue'
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85 except AttributeError:
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86 pass
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87 else:
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88 raise TestFailed, "array subclass __slots__ was ignored"
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89
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90
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91 def testoverflow(type, lowerLimit, upperLimit):
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92 # should not overflow assigning lower limit
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93 if verbose:
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94 print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
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95 try:
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96 a = array.array(type, [lowerLimit])
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97 except:
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98 raise TestFailed, "array(%s) overflowed assigning %s" %\
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99 (`type`, `lowerLimit`)
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100 # should overflow assigning less than lower limit
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101 if verbose:
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102 print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
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103 try:
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104 a = array.array(type, [lowerLimit-1])
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105 raise TestFailed, "array(%s) did not overflow assigning %s" %\
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106 (`type`, `lowerLimit-1`)
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107 except OverflowError:
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108 pass
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109 # should not overflow assigning upper limit
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110 if verbose:
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111 print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
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112 try:
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113 a = array.array(type, [upperLimit])
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114 except:
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115 raise TestFailed, "array(%s) overflowed assigning %s" %\
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116 (`type`, `upperLimit`)
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117 # should overflow assigning more than upper limit
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118 if verbose:
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119 print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
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120 try:
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121 a = array.array(type, [upperLimit+1])
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122 raise TestFailed, "array(%s) did not overflow assigning %s" %\
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123 (`type`, `upperLimit+1`)
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124 except OverflowError:
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125 pass
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126
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127
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128
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129 def testtype(type, example):
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130 a = array.array(type)
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131 a.append(example)
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132 if verbose:
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133 print 40*'*'
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134 print 'array after append: ', a
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135 a.typecode
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136 a.itemsize
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137 if a.typecode in ('i', 'b', 'h', 'l'):
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138 a.byteswap()
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139
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140 if a.typecode == 'c':
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141 f = open(TESTFN, "w")
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142 f.write("The quick brown fox jumps over the lazy dog.\n")
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143 f.close()
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144 f = open(TESTFN, 'r')
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145 a.fromfile(f, 10)
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146 f.close()
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147 if verbose:
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148 print 'char array with 10 bytes of TESTFN appended: ', a
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149 a.fromlist(['a', 'b', 'c'])
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150 if verbose:
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151 print 'char array with list appended: ', a
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152
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153 a.insert(0, example)
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154 if verbose:
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155 print 'array of %s after inserting another:' % a.typecode, a
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156 f = open(TESTFN, 'w')
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157 a.tofile(f)
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158 f.close()
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Tim Peters <tim.peters@gmail.com>
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159
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160 # This block is just to verify that the operations don't blow up.
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161 a.tolist()
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162 a.tostring()
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163 repr(a)
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164 str(a)
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165
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166 if verbose:
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167 print 'array of %s converted to a list: ' % a.typecode, a.tolist()
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168 if verbose:
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169 print 'array of %s converted to a string: ' \
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170 % a.typecode, `a.tostring()`
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171
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172 # Try out inplace addition and multiplication
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173 a = array.array(type, [example])
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174 b = a
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175 a += array.array(type, [example]*2)
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176 if a is not b:
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177 raise TestFailed, "array(%s) inplace addition" % `type`
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178 if a != array.array(type, [example] * 3):
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179 raise TestFailed, "array(%s) inplace addition" % `type`
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180
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181 a *= 5
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182 if a is not b:
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183 raise TestFailed, "array(%s) inplace multiplication" % `type`
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184 if a != array.array(type, [example] * 15):
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185 raise TestFailed, "array(%s) inplace multiplication" % `type`
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186
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187 a *= 0
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188 if a is not b:
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189 raise TestFailed, "array(%s) inplace multiplication by 0" % `type`
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190 if a != array.array(type, []):
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191 raise TestFailed, "array(%s) inplace multiplication by 0" % `type`
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192
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193 a *= 1000
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194 if a is not b:
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195 raise TestFailed, "empty array(%s) inplace multiplication" % `type`
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196 if a != array.array(type, []):
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197 raise TestFailed, "empty array(%s) inplace multiplication" % `type`
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198
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199 if type == 'c':
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200 a = array.array(type, "abcde")
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201 a[:-1] = a
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202 if a != array.array(type, "abcdee"):
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203 raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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204 a = array.array(type, "abcde")
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205 a[1:] = a
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206 if a != array.array(type, "aabcde"):
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207 raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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208 a = array.array(type, "abcde")
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209 a[1:-1] = a
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210 if a != array.array(type, "aabcdee"):
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211 raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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212 if a.index("e") != 5:
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213 raise TestFailed, "array(%s) index-test" % `type`
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214 if a.count("a") != 2:
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215 raise TestFailed, "array(%s) count-test" % `type`
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216 a.remove("e")
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217 if a != array.array(type, "aabcde"):
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218 raise TestFailed, "array(%s) remove-test" % `type`
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219 if a.pop(0) != "a":
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220 raise TestFailed, "array(%s) pop-test" % `type`
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221 if a.pop(1) != "b":
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222 raise TestFailed, "array(%s) pop-test" % `type`
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223 a.extend(array.array(type, "xyz"))
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224 if a != array.array(type, "acdexyz"):
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diff changeset
225 raise TestFailed, "array(%s) extend-test" % `type`
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diff changeset
226 a.pop()
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diff changeset
227 a.pop()
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diff changeset
228 a.pop()
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229 x = a.pop()
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230 if x != 'e':
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diff changeset
231 raise TestFailed, "array(%s) pop-test" % `type`
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232 if a != array.array(type, "acd"):
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233 raise TestFailed, "array(%s) pop-test" % `type`
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234 a.reverse()
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235 if a != array.array(type, "dca"):
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236 raise TestFailed, "array(%s) reverse-test" % `type`
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237 elif type == 'u':
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238 a = array.array(type, u"abcde")
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239 a[:-1] = a
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240 if a != array.array(type, u"abcdee"):
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241 raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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242 a = array.array(type, u"abcde")
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243 a[1:] = a
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244 if a != array.array(type, u"aabcde"):
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245 raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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246 a = array.array(type, u"abcde")
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247 a[1:-1] = a
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248 if a != array.array(type, u"aabcdee"):
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249 raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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250 if a.index(u"e") != 5:
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251 raise TestFailed, "array(%s) index-test" % `type`
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252 if a.count(u"a") != 2:
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253 raise TestFailed, "array(%s) count-test" % `type`
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254 a.remove(u"e")
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255 if a != array.array(type, u"aabcde"):
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256 raise TestFailed, "array(%s) remove-test" % `type`
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257 if a.pop(0) != u"a":
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258 raise TestFailed, "array(%s) pop-test" % `type`
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259 if a.pop(1) != u"b":
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260 raise TestFailed, "array(%s) pop-test" % `type`
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261 a.extend(array.array(type, u"xyz"))
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262 if a != array.array(type, u"acdexyz"):
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263 raise TestFailed, "array(%s) extend-test" % `type`
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264 a.pop()
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265 a.pop()
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266 a.pop()
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267 x = a.pop()
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268 if x != u'e':
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269 raise TestFailed, "array(%s) pop-test" % `type`
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270 if a != array.array(type, u"acd"):
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271 raise TestFailed, "array(%s) pop-test" % `type`
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272 a.reverse()
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273 if a != array.array(type, u"dca"):
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274 raise TestFailed, "array(%s) reverse-test" % `type`
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275 else:
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276 a = array.array(type, [1, 2, 3, 4, 5])
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277 a[:-1] = a
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278 if a != array.array(type, [1, 2, 3, 4, 5, 5]):
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279 raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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280 a = array.array(type, [1, 2, 3, 4, 5])
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281 a[1:] = a
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282 if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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283 raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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284 a = array.array(type, [1, 2, 3, 4, 5])
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285 a[1:-1] = a
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286 if a != array.array(type, [1, 1, 2, 3, 4, 5, 5]):
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287 raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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288 if a.index(5) != 5:
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289 raise TestFailed, "array(%s) index-test" % `type`
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290 if a.count(1) != 2:
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291 raise TestFailed, "array(%s) count-test" % `type`
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292 a.remove(5)
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293 if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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294 raise TestFailed, "array(%s) remove-test" % `type`
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295 if a.pop(0) != 1:
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296 raise TestFailed, "array(%s) pop-test" % `type`
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297 if a.pop(1) != 2:
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298 raise TestFailed, "array(%s) pop-test" % `type`
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299 a.extend(array.array(type, [7, 8, 9]))
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300 if a != array.array(type, [1, 3, 4, 5, 7, 8, 9]):
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301 raise TestFailed, "array(%s) extend-test" % `type`
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302 a.pop()
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303 a.pop()
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304 a.pop()
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305 x = a.pop()
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306 if x != 5:
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307 raise TestFailed, "array(%s) pop-test" % `type`
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308 if a != array.array(type, [1, 3, 4]):
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309 raise TestFailed, "array(%s) pop-test" % `type`
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310 a.reverse()
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311 if a != array.array(type, [4, 3, 1]):
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312 raise TestFailed, "array(%s) reverse-test" % `type`
8676
7d96842383bb Add tests for array self-assigns. (This one has no relevance to JPython.)
Guido van Rossum <guido@python.org>
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313
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314 # test that overflow exceptions are raised as expected for assignment
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315 # to array of specific integral types
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316 from math import pow
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317 if type in ('b', 'h', 'i', 'l'):
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318 # check signed and unsigned versions
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319 a = array.array(type)
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320 signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
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321 signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
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322 unsignedLowerLimit = 0
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323 unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
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324 testoverflow(type, signedLowerLimit, signedUpperLimit)
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325 testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
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326
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327
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328
4811
9ae3cccfa7cd Many scripts, but small changes. Update the way the scripts obtain the
Roger E. Masse <rmasse@newcnri.cnri.reston.va.us>
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329 main()