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annotate Lib/test/test_StringIO.py @ 17322:bd110eadc19a legacy-trunk

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One-liner critical fix from Jim Fulton: Eric's string-method crusade got the order backwards in a line (for .find()).
author Tim Peters <tim.peters@gmail.com>
date Thu, 05 Apr 2001 22:26:23 +0000
parents 60a2e99c863b
children 6378cb117b73
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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d6ffb6d7fe8a New test cases for the StringIO module
Martin v. Löwis <martin@v.loewis.de>
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1 # Tests StringIO and cStringIO
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2
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3 def do_test(module):
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becd8a121464 Jack Jansen reported that the regression test failed on the Mac where
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4 s = ("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"+'\n')*5
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5 f = module.StringIO(s)
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6 print f.read(10)
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7 print f.readline()
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8 print len(f.readlines(60))
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9
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10 f = module.StringIO()
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11 f.write('abcdef')
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12 f.seek(3)
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13 f.write('uvwxyz')
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14 f.write('!')
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15 print `f.getvalue()`
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16 f.close()
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17
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18 f = module.StringIO()
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19 f.writelines(["a", "b", "c"])
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20 f.seek(0)
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21 print `f.getvalue()`
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22 f.close()
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23
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24 f = module.StringIO()
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25 f.write(s)
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26 f.seek(10)
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27 f.truncate()
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28 print `f.getvalue()`
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29 f.seek(0)
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30 f.truncate(5)
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31 print `f.getvalue()`
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32 f.close()
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33 try:
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34 f.write("frobnitz")
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35 except ValueError, e:
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36 print "Caught expected ValueError writing to closed StringIO:"
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37 print e
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38 else:
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39 print "Failed to catch ValueError writing to closed StringIO."
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40
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41 import StringIO, cStringIO
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42 do_test(StringIO)
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43 do_test(cStringIO)