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annotate tests/test-demandimport.py @ 36284:c2c5f9f6fa21

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tests: avoid referring to pvec in demandimport test Nothing else currently uses pvec, so we may want to delete it (but Augie Fackler says he may want to use it). To enable deletion, this patch replaces it by the error module in the demandimport test (any module works). However, since the error module had already been loaded at this point in the test (via the util module), I moved it earlier in the test so it's still not loaded (although I'm not sure if that's even relevant to the test). Differential Revision: https://phab.mercurial-scm.org/D2287
author Martin von Zweigbergk <martinvonz@google.com>
date Fri, 16 Feb 2018 11:33:56 -0800
parents b39f0fdb0338
children 1d0610fdd63b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 from __future__ import absolute_import, print_function
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2
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3 from mercurial import demandimport
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4 demandimport.enable()
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5
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6 import os
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7 import subprocess
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8 import sys
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9
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10 # Only run if demandimport is allowed
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11 if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'],
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12 'demandimport']):
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13 sys.exit(80)
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14
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15 if os.name != 'nt':
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16 try:
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17 import distutils.msvc9compiler
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18 print('distutils.msvc9compiler needs to be an immediate '
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19 'importerror on non-windows platforms')
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20 distutils.msvc9compiler
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21 except ImportError:
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22 pass
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23
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24 import re
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25
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26 rsub = re.sub
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27 def f(obj):
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28 l = repr(obj)
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29 l = rsub("0x[0-9a-fA-F]+", "0x?", l)
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30 l = rsub("from '.*'", "from '?'", l)
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31 l = rsub("'<[a-z]*>'", "'<whatever>'", l)
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32 return l
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33
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34 demandimport.disable()
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35 os.environ['HGDEMANDIMPORT'] = 'disable'
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36 # this enable call should not actually enable demandimport!
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37 demandimport.enable()
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38 from mercurial import node
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39 print("node =", f(node))
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40 # now enable it for real
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41 del os.environ['HGDEMANDIMPORT']
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42 demandimport.enable()
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43
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44 # Test access to special attributes through demandmod proxy
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45 from mercurial import error as errorproxy
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46 print("errorproxy =", f(errorproxy))
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47 print("errorproxy.__doc__ = %r"
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48 % (' '.join(errorproxy.__doc__.split()[:3]) + ' ...'))
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49 print("errorproxy.__name__ = %r" % errorproxy.__name__)
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50 # __name__ must be accessible via __dict__ so the relative imports can be
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51 # resolved
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52 print("errorproxy.__dict__['__name__'] = %r" % errorproxy.__dict__['__name__'])
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53 print("errorproxy =", f(errorproxy))
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54
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55 import os
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56
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57 print("os =", f(os))
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58 print("os.system =", f(os.system))
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59 print("os =", f(os))
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60
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61 from mercurial import util
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62
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63 print("util =", f(util))
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64 print("util.system =", f(util.system))
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65 print("util =", f(util))
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66 print("util.system =", f(util.system))
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67
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68 from mercurial import hgweb
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69 print("hgweb =", f(hgweb))
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70 print("hgweb_mod =", f(hgweb.hgweb_mod))
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71 print("hgweb =", f(hgweb))
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72
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73 import re as fred
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74 print("fred =", f(fred))
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75
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76 import re as remod
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77 print("remod =", f(remod))
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78
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79 import sys as re
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80 print("re =", f(re))
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81
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82 print("fred =", f(fred))
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83 print("fred.sub =", f(fred.sub))
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84 print("fred =", f(fred))
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85
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86 remod.escape # use remod
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87 print("remod =", f(remod))
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88
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89 print("re =", f(re))
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90 print("re.stderr =", f(re.stderr))
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91 print("re =", f(re))
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92
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93 import contextlib
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94 print("contextlib =", f(contextlib))
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95 try:
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96 from contextlib import unknownattr
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97 print('no demandmod should be created for attribute of non-package '
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98 'module:\ncontextlib.unknownattr =', f(unknownattr))
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99 except ImportError as inst:
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100 print('contextlib.unknownattr = ImportError: %s'
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101 % rsub(r"'", '', str(inst)))
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102
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103 # Unlike the import statement, __import__() function should not raise
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104 # ImportError even if fromlist has an unknown item
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105 # (see Python/import.c:import_module_level() and ensure_fromlist())
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106 contextlibimp = __import__('contextlib', globals(), locals(), ['unknownattr'])
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107 print("__import__('contextlib', ..., ['unknownattr']) =", f(contextlibimp))
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108 print("hasattr(contextlibimp, 'unknownattr') =",
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109 util.safehasattr(contextlibimp, 'unknownattr'))