Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_pipes.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents 228cfb6e2900
children 6c6425563918
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import pipes
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2 import os
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3 import string
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4 import unittest
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5 from test.test_support import TESTFN, run_unittest, unlink
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6
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7 if os.name != 'posix':
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8 raise unittest.SkipTest('pipes module only works on posix')
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9
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10 TESTFN2 = TESTFN + "2"
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11
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12 # tr a-z A-Z is not portable, so make the ranges explicit
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13 s_command = 'tr %s %s' % (string.ascii_lowercase, string.ascii_uppercase)
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14
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15 class SimplePipeTests(unittest.TestCase):
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16 def tearDown(self):
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17 for f in (TESTFN, TESTFN2):
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18 unlink(f)
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19
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20 def testSimplePipe1(self):
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21 t = pipes.Template()
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22 t.append(s_command, pipes.STDIN_STDOUT)
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23 f = t.open(TESTFN, 'w')
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24 f.write('hello world #1')
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25 f.close()
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26 self.assertEqual(open(TESTFN).read(), 'HELLO WORLD #1')
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27
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28 def testSimplePipe2(self):
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29 file(TESTFN, 'w').write('hello world #2')
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30 t = pipes.Template()
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31 t.append(s_command + ' < $IN > $OUT', pipes.FILEIN_FILEOUT)
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32 t.copy(TESTFN, TESTFN2)
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33 self.assertEqual(open(TESTFN2).read(), 'HELLO WORLD #2')
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34
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35 def testSimplePipe3(self):
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36 file(TESTFN, 'w').write('hello world #2')
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37 t = pipes.Template()
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38 t.append(s_command + ' < $IN', pipes.FILEIN_STDOUT)
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39 self.assertEqual(t.open(TESTFN, 'r').read(), 'HELLO WORLD #2')
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40
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41 def testEmptyPipeline1(self):
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42 # copy through empty pipe
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43 d = 'empty pipeline test COPY'
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44 file(TESTFN, 'w').write(d)
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45 file(TESTFN2, 'w').write('')
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46 t=pipes.Template()
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47 t.copy(TESTFN, TESTFN2)
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48 self.assertEqual(open(TESTFN2).read(), d)
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49
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50 def testEmptyPipeline2(self):
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51 # read through empty pipe
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52 d = 'empty pipeline test READ'
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53 file(TESTFN, 'w').write(d)
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54 t=pipes.Template()
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55 self.assertEqual(t.open(TESTFN, 'r').read(), d)
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56
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57 def testEmptyPipeline3(self):
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58 # write through empty pipe
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59 d = 'empty pipeline test WRITE'
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60 t = pipes.Template()
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61 t.open(TESTFN, 'w').write(d)
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62 self.assertEqual(open(TESTFN).read(), d)
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63
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64 def testQuoting(self):
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65 safeunquoted = string.ascii_letters + string.digits + '!@%_-+=:,./'
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66 unsafe = '"`$\\'
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67
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68 self.assertEqual(pipes.quote(safeunquoted), safeunquoted)
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69 self.assertEqual(pipes.quote('test file name'), "'test file name'")
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70 for u in unsafe:
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71 self.assertEqual(pipes.quote('test%sname' % u),
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72 "'test%sname'" % u)
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73 for u in unsafe:
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74 self.assertEqual(pipes.quote("test%s'name'" % u),
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75 '"test\\%s\'name\'"' % u)
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76
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77 def testRepr(self):
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78 t = pipes.Template()
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79 self.assertEqual(repr(t), "<Template instance, steps=[]>")
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80 t.append('tr a-z A-Z', pipes.STDIN_STDOUT)
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81 self.assertEqual(repr(t),
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82 "<Template instance, steps=[('tr a-z A-Z', '--')]>")
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83
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84 def testSetDebug(self):
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85 t = pipes.Template()
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86 t.debug(False)
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87 self.assertEqual(t.debugging, False)
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88 t.debug(True)
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89 self.assertEqual(t.debugging, True)
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90
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91 def testReadOpenSink(self):
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92 # check calling open('r') on a pipe ending with
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93 # a sink raises ValueError
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94 t = pipes.Template()
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95 t.append('boguscmd', pipes.SINK)
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96 self.assertRaises(ValueError, t.open, 'bogusfile', 'r')
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97
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98 def testWriteOpenSource(self):
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99 # check calling open('w') on a pipe ending with
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100 # a source raises ValueError
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101 t = pipes.Template()
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102 t.prepend('boguscmd', pipes.SOURCE)
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103 self.assertRaises(ValueError, t.open, 'bogusfile', 'w')
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104
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105 def testBadAppendOptions(self):
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106 t = pipes.Template()
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107
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108 # try a non-string command
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109 self.assertRaises(TypeError, t.append, 7, pipes.STDIN_STDOUT)
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110
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111 # try a type that isn't recognized
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112 self.assertRaises(ValueError, t.append, 'boguscmd', 'xx')
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113
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114 # shouldn't be able to append a source
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115 self.assertRaises(ValueError, t.append, 'boguscmd', pipes.SOURCE)
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116
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117 # check appending two sinks
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118 t = pipes.Template()
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119 t.append('boguscmd', pipes.SINK)
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120 self.assertRaises(ValueError, t.append, 'boguscmd', pipes.SINK)
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121
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122 # command needing file input but with no $IN
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123 t = pipes.Template()
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124 self.assertRaises(ValueError, t.append, 'boguscmd $OUT',
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125 pipes.FILEIN_FILEOUT)
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126 t = pipes.Template()
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127 self.assertRaises(ValueError, t.append, 'boguscmd',
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128 pipes.FILEIN_STDOUT)
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129
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130 # command needing file output but with no $OUT
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131 t = pipes.Template()
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132 self.assertRaises(ValueError, t.append, 'boguscmd $IN',
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133 pipes.FILEIN_FILEOUT)
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134 t = pipes.Template()
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135 self.assertRaises(ValueError, t.append, 'boguscmd',
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136 pipes.STDIN_FILEOUT)
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137
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138
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139 def testBadPrependOptions(self):
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140 t = pipes.Template()
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141
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142 # try a non-string command
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143 self.assertRaises(TypeError, t.prepend, 7, pipes.STDIN_STDOUT)
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144
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145 # try a type that isn't recognized
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146 self.assertRaises(ValueError, t.prepend, 'tr a-z A-Z', 'xx')
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147
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148 # shouldn't be able to prepend a sink
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149 self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.SINK)
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150
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151 # check prepending two sources
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152 t = pipes.Template()
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153 t.prepend('boguscmd', pipes.SOURCE)
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154 self.assertRaises(ValueError, t.prepend, 'boguscmd', pipes.SOURCE)
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155
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156 # command needing file input but with no $IN
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157 t = pipes.Template()
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158 self.assertRaises(ValueError, t.prepend, 'boguscmd $OUT',
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159 pipes.FILEIN_FILEOUT)
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160 t = pipes.Template()
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161 self.assertRaises(ValueError, t.prepend, 'boguscmd',
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162 pipes.FILEIN_STDOUT)
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163
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164 # command needing file output but with no $OUT
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165 t = pipes.Template()
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166 self.assertRaises(ValueError, t.prepend, 'boguscmd $IN',
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167 pipes.FILEIN_FILEOUT)
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168 t = pipes.Template()
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169 self.assertRaises(ValueError, t.prepend, 'boguscmd',
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170 pipes.STDIN_FILEOUT)
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171
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172 def testBadOpenMode(self):
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173 t = pipes.Template()
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174 self.assertRaises(ValueError, t.open, 'bogusfile', 'x')
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175
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176 def testClone(self):
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177 t = pipes.Template()
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178 t.append('tr a-z A-Z', pipes.STDIN_STDOUT)
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179
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180 u = t.clone()
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181 self.assertNotEqual(id(t), id(u))
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182 self.assertEqual(t.steps, u.steps)
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183 self.assertNotEqual(id(t.steps), id(u.steps))
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184 self.assertEqual(t.debugging, u.debugging)
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185
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186 def test_main():
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187 run_unittest(SimplePipeTests)
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188
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189 if __name__ == "__main__":
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190 test_main()