Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test___all__.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents b36cb4602e21
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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a0ef4ef5fc88 Backporting since it would have helped us find a regression.
Antoine Pitrou <solipsis@pitrou.net>
parents: 56364
diff changeset
1 from __future__ import print_function
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2
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Walter Dörwald <walter@livinglogic.de>
parents: 25681
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3 import unittest
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4 from test import test_support as support
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5 import os
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6 import sys
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7
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8 # Setup bsddb warnings
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9 try:
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f5ce5e1bb23a Silence deprecation warning in test___all__ caused by an import bsddb.
Ezio Melotti <ezio.melotti@gmail.com>
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10 bsddb = support.import_module('bsddb', deprecated=True)
f5ce5e1bb23a Silence deprecation warning in test___all__ caused by an import bsddb.
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11 except unittest.SkipTest:
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12 pass
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13
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14
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15 class NoAll(RuntimeError):
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16 pass
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17
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18 class FailedImport(RuntimeError):
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19 pass
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20
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21
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22 class AllTest(unittest.TestCase):
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23
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24 def check_all(self, modname):
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25 names = {}
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26 with support.check_warnings((".* (module|package)",
3748bca4d869 Replace catch_warnings with check_warnings when it makes sense. Use assertRaises context manager to simplify some tests.
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27 DeprecationWarning), quiet=True):
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28 try:
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29 exec "import %s" % modname in names
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30 except:
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31 # Silent fail here seems the best route since some modules
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32 # may not be available or not initialize properly in all
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33 # environments.
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34 raise FailedImport(modname)
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35 if not hasattr(sys.modules[modname], "__all__"):
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36 raise NoAll(modname)
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37 names = {}
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38 try:
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39 exec "from %s import *" % modname in names
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40 except Exception as e:
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41 # Include the module name in the exception string
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42 self.fail("__all__ failure in {}: {}: {}".format(
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43 modname, e.__class__.__name__, e))
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44 if "__builtins__" in names:
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45 del names["__builtins__"]
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46 keys = set(names)
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47 all = set(sys.modules[modname].__all__)
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48 self.assertEqual(keys, all)
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49
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50 def walk_modules(self, basedir, modpath):
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51 for fn in sorted(os.listdir(basedir)):
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52 path = os.path.join(basedir, fn)
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53 if os.path.isdir(path):
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54 pkg_init = os.path.join(path, '__init__.py')
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55 if os.path.exists(pkg_init):
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56 yield pkg_init, modpath + fn
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57 for p, m in self.walk_modules(path, modpath + fn + "."):
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58 yield p, m
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59 continue
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60 if not fn.endswith('.py') or fn == '__init__.py':
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61 continue
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62 yield path, modpath + fn[:-3]
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63
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64 def test_all(self):
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65 # Blacklisted modules and packages
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66 blacklist = set([
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67 # Will raise a SyntaxError when compiling the exec statement
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68 '__future__',
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69 ])
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70
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71 if not sys.platform.startswith('java'):
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72 # In case _socket fails to build, make this test fail more gracefully
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73 # than an AttributeError somewhere deep in CGIHTTPServer.
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74 import _socket
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75
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76 # rlcompleter needs special consideration; it import readline which
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77 # initializes GNU readline which calls setlocale(LC_CTYPE, "")... :-(
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78 try:
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79 import rlcompleter
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80 import locale
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81 except ImportError:
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82 pass
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83 else:
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84 locale.setlocale(locale.LC_CTYPE, 'C')
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85
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86 ignored = []
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87 failed_imports = []
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88 lib_dir = os.path.dirname(os.path.dirname(__file__))
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89 for path, modname in self.walk_modules(lib_dir, ""):
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90 m = modname
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91 blacklisted = False
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92 while m:
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93 if m in blacklist:
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94 blacklisted = True
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95 break
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96 m = m.rpartition('.')[0]
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97 if blacklisted:
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98 continue
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99 if support.verbose:
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100 print(modname)
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101 try:
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102 # This heuristic speeds up the process by removing, de facto,
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103 # most test modules (and avoiding the auto-executing ones).
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104 with open(path, "rb") as f:
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105 if "__all__" not in f.read():
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106 raise NoAll(modname)
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107 self.check_all(modname)
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108 except NoAll:
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109 ignored.append(modname)
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110 except FailedImport:
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111 failed_imports.append(modname)
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112
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113 if support.verbose:
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114 print('Following modules have no __all__ and have been ignored:',
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115 ignored)
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116 print('Following modules failed to be imported:', failed_imports)
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117
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118
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119 def test_main():
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120 support.run_unittest(AllTest)
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121
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122 if __name__ == "__main__":
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123 test_main()