Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_cmd.py @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 294f8aeb4d4b
children
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rev   line source
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1 #!/usr/bin/env python3
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2 """
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3 Test script for the 'cmd' module
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4 Original by Michael Schneider
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5 """
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6
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7
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8 import cmd
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9 import sys
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10 import re
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11 import unittest
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12 import io
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13 from test import support
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14
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15 class samplecmdclass(cmd.Cmd):
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16 """
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17 Instance the sampleclass:
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18 >>> mycmd = samplecmdclass()
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19
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20 Test for the function parseline():
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21 >>> mycmd.parseline("")
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22 (None, None, '')
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23 >>> mycmd.parseline("?")
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24 ('help', '', 'help ')
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25 >>> mycmd.parseline("?help")
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26 ('help', 'help', 'help help')
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27 >>> mycmd.parseline("!")
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28 ('shell', '', 'shell ')
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29 >>> mycmd.parseline("!command")
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30 ('shell', 'command', 'shell command')
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31 >>> mycmd.parseline("func")
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32 ('func', '', 'func')
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33 >>> mycmd.parseline("func arg1")
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34 ('func', 'arg1', 'func arg1')
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36
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37 Test for the function onecmd():
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38 >>> mycmd.onecmd("")
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39 >>> mycmd.onecmd("add 4 5")
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40 9
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41 >>> mycmd.onecmd("")
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42 9
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43 >>> mycmd.onecmd("test")
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44 *** Unknown syntax: test
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45
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46 Test for the function emptyline():
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47 >>> mycmd.emptyline()
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48 *** Unknown syntax: test
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49
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50 Test for the function default():
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51 >>> mycmd.default("default")
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52 *** Unknown syntax: default
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53
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54 Test for the function completedefault():
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55 >>> mycmd.completedefault()
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56 This is the completedefault methode
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57 >>> mycmd.completenames("a")
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58 ['add']
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59
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60 Test for the function completenames():
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61 >>> mycmd.completenames("12")
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62 []
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63 >>> mycmd.completenames("help")
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64 ['help']
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65
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66 Test for the function complete_help():
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67 >>> mycmd.complete_help("a")
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68 ['add']
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69 >>> mycmd.complete_help("he")
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70 ['help']
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71 >>> mycmd.complete_help("12")
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72 []
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73 >>> sorted(mycmd.complete_help(""))
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74 ['add', 'exit', 'help', 'shell']
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75
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76 Test for the function do_help():
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77 >>> mycmd.do_help("testet")
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78 *** No help on testet
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79 >>> mycmd.do_help("add")
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80 help text for add
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81 >>> mycmd.onecmd("help add")
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82 help text for add
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83 >>> mycmd.do_help("")
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84 <BLANKLINE>
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85 Documented commands (type help <topic>):
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86 ========================================
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87 add help
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88 <BLANKLINE>
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89 Undocumented commands:
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90 ======================
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91 exit shell
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92 <BLANKLINE>
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93
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94 Test for the function print_topics():
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95 >>> mycmd.print_topics("header", ["command1", "command2"], 2 ,10)
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96 header
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97 ======
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98 command1
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99 command2
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100 <BLANKLINE>
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101
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102 Test for the function columnize():
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103 >>> mycmd.columnize([str(i) for i in range(20)])
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104 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
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105 >>> mycmd.columnize([str(i) for i in range(20)], 10)
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106 0 7 14
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107 1 8 15
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108 2 9 16
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109 3 10 17
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110 4 11 18
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111 5 12 19
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112 6 13
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113
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114 This is a interactive test, put some commands in the cmdqueue attribute
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115 and let it execute
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116 This test includes the preloop(), postloop(), default(), emptyline(),
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117 parseline(), do_help() functions
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118 >>> mycmd.use_rawinput=0
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119 >>> mycmd.cmdqueue=["", "add", "add 4 5", "help", "help add","exit"]
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120 >>> mycmd.cmdloop()
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121 Hello from preloop
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122 help text for add
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123 *** invalid number of arguments
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124 9
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125 <BLANKLINE>
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126 Documented commands (type help <topic>):
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127 ========================================
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128 add help
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129 <BLANKLINE>
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130 Undocumented commands:
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131 ======================
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132 exit shell
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133 <BLANKLINE>
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134 help text for add
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135 Hello from postloop
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136 """
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137
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138 def preloop(self):
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139 print("Hello from preloop")
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140
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141 def postloop(self):
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142 print("Hello from postloop")
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143
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144 def completedefault(self, *ignored):
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145 print("This is the completedefault methode")
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146
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147 def complete_command(self):
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148 print("complete command")
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149
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150 def do_shell(self, s):
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151 pass
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152
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153 def do_add(self, s):
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154 l = s.split()
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155 if len(l) != 2:
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156 print("*** invalid number of arguments")
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157 return
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158 try:
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159 l = [int(i) for i in l]
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160 except ValueError:
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161 print("*** arguments should be numbers")
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162 return
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163 print(l[0]+l[1])
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164
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165 def help_add(self):
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166 print("help text for add")
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167 return
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168
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169 def do_exit(self, arg):
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170 return True
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171
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172
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173 class TestAlternateInput(unittest.TestCase):
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174
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175 class simplecmd(cmd.Cmd):
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176
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177 def do_print(self, args):
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178 print(args, file=self.stdout)
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179
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180 def do_EOF(self, args):
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181 return True
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182
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183
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184 class simplecmd2(simplecmd):
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185
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186 def do_EOF(self, args):
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187 print('*** Unknown syntax: EOF', file=self.stdout)
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188 return True
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189
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190
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191 def test_file_with_missing_final_nl(self):
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192 input = io.StringIO("print test\nprint test2")
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193 output = io.StringIO()
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194 cmd = self.simplecmd(stdin=input, stdout=output)
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195 cmd.use_rawinput = False
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196 cmd.cmdloop()
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197 self.assertMultiLineEqual(output.getvalue(),
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198 ("(Cmd) test\n"
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199 "(Cmd) test2\n"
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200 "(Cmd) "))
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201
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202
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203 def test_input_reset_at_EOF(self):
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204 input = io.StringIO("print test\nprint test2")
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205 output = io.StringIO()
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206 cmd = self.simplecmd2(stdin=input, stdout=output)
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207 cmd.use_rawinput = False
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208 cmd.cmdloop()
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209 self.assertMultiLineEqual(output.getvalue(),
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210 ("(Cmd) test\n"
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211 "(Cmd) test2\n"
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212 "(Cmd) *** Unknown syntax: EOF\n"))
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213 input = io.StringIO("print \n\n")
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214 output = io.StringIO()
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215 cmd.stdin = input
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216 cmd.stdout = output
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217 cmd.cmdloop()
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218 self.assertMultiLineEqual(output.getvalue(),
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219 ("(Cmd) \n"
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220 "(Cmd) \n"
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221 "(Cmd) *** Unknown syntax: EOF\n"))
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222
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223
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224 def test_main(verbose=None):
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225 from test import test_cmd
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226 support.run_doctest(test_cmd, verbose)
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227 support.run_unittest(TestAlternateInput)
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228
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229 def test_coverage(coverdir):
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230 trace = support.import_module('trace')
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231 tracer=trace.Trace(ignoredirs=[sys.base_prefix, sys.base_exec_prefix,],
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232 trace=0, count=1)
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233 tracer.run('reload(cmd);test_main()')
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234 r=tracer.results()
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235 print("Writing coverage results...")
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236 r.write_results(show_missing=True, summary=True, coverdir=coverdir)
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237
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238 if __name__ == "__main__":
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239 if "-c" in sys.argv:
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240 test_coverage('/tmp/cmd.cover')
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241 elif "-i" in sys.argv:
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242 samplecmdclass().cmdloop()
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243 else:
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244 test_main()