author | bugtracker-ml@nttdocomo.com |
Sun, 04 Jul 2010 21:21:52 +0100 | |
changeset 84 | 05f4463787cf |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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"""Test correct operation of the print function. |
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""" |
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# In 2.6, this gives us the behavior we want. In 3.0, it has |
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# no function, but it still must parse correctly. |
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from __future__ import print_function |
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import unittest |
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from test import test_support |
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|
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import sys |
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if sys.version_info[0] == 3: |
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# 3.x |
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from io import StringIO |
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else: |
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# 2.x |
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from StringIO import StringIO |
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NotDefined = object() |
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|
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# A dispatch table all 8 combinations of providing |
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# sep, end, and file |
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# I use this machinery so that I'm not just passing default |
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# values to print, I'm eiher passing or not passing in the |
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# arguments |
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dispatch = { |
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(False, False, False): |
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lambda args, sep, end, file: print(*args), |
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(False, False, True): |
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lambda args, sep, end, file: print(file=file, *args), |
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(False, True, False): |
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lambda args, sep, end, file: print(end=end, *args), |
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(False, True, True): |
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lambda args, sep, end, file: print(end=end, file=file, *args), |
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(True, False, False): |
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lambda args, sep, end, file: print(sep=sep, *args), |
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(True, False, True): |
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lambda args, sep, end, file: print(sep=sep, file=file, *args), |
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(True, True, False): |
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lambda args, sep, end, file: print(sep=sep, end=end, *args), |
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(True, True, True): |
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lambda args, sep, end, file: print(sep=sep, end=end, file=file, *args), |
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} |
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|
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# Class used to test __str__ and print |
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class ClassWith__str__: |
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def __init__(self, x): |
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self.x = x |
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def __str__(self): |
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return self.x |
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|
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class TestPrint(unittest.TestCase): |
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def check(self, expected, args, |
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sep=NotDefined, end=NotDefined, file=NotDefined): |
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# Capture sys.stdout in a StringIO. Call print with args, |
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# and with sep, end, and file, if they're defined. Result |
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# must match expected. |
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|
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# Look up the actual function to call, based on if sep, end, and file |
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# are defined |
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fn = dispatch[(sep is not NotDefined, |
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end is not NotDefined, |
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file is not NotDefined)] |
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|
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with test_support.captured_stdout() as t: |
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fn(args, sep, end, file) |
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|
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self.assertEqual(t.getvalue(), expected) |
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|
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def test_print(self): |
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def x(expected, args, sep=NotDefined, end=NotDefined): |
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# Run the test 2 ways: not using file, and using |
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# file directed to a StringIO |
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|
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self.check(expected, args, sep=sep, end=end) |
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|
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# When writing to a file, stdout is expected to be empty |
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o = StringIO() |
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self.check('', args, sep=sep, end=end, file=o) |
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|
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# And o will contain the expected output |
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self.assertEqual(o.getvalue(), expected) |
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|
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x('\n', ()) |
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x('a\n', ('a',)) |
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x('None\n', (None,)) |
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x('1 2\n', (1, 2)) |
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x('1 2\n', (1, ' ', 2)) |
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x('1*2\n', (1, 2), sep='*') |
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x('1 s', (1, 's'), end='') |
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x('a\nb\n', ('a', 'b'), sep='\n') |
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x('1.01', (1.0, 1), sep='', end='') |
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x('1*a*1.3+', (1, 'a', 1.3), sep='*', end='+') |
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x('a\n\nb\n', ('a\n', 'b'), sep='\n') |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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x('\0+ +\0\n', ('\0', ' ', '\0'), sep='+') |
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96 |
|
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x('a\n b\n', ('a\n', 'b')) |
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x('a\n b\n', ('a\n', 'b'), sep=None) |
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x('a\n b\n', ('a\n', 'b'), end=None) |
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x('a\n b\n', ('a\n', 'b'), sep=None, end=None) |
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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x('*\n', (ClassWith__str__('*'),)) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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x('abc 1\n', (ClassWith__str__('abc'), 1)) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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|
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# 2.x unicode tests |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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|
106 |
x(u'1 2\n', ('1', u'2')) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
107 |
x(u'u\1234\n', (u'u\1234',)) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
108 |
x(u' abc 1\n', (' ', ClassWith__str__(u'abc'), 1)) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
109 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
110 |
# errors |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
111 |
self.assertRaises(TypeError, print, '', sep=3) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
112 |
self.assertRaises(TypeError, print, '', end=3) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
113 |
self.assertRaises(AttributeError, print, '', file='') |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
114 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
115 |
def test_main(): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
116 |
test_support.run_unittest(TestPrint) |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
117 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
118 |
if __name__ == "__main__": |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff
changeset
|
119 |
test_main() |