source: python/trunk/Lib/test/test_site.py

Last change on this file was 391, checked in by dmik, 11 years ago

python: Merge vendor 2.7.6 to trunk.

  • Property svn:eol-style set to native
File size: 15.2 KB
Line 
1"""Tests for 'site'.
2
3Tests assume the initial paths in sys.path once the interpreter has begun
4executing have not been removed.
5
6"""
7import unittest
8from test.test_support import run_unittest, TESTFN, EnvironmentVarGuard
9from test.test_support import captured_output
10import __builtin__
11import os
12import sys
13import re
14import encodings
15import subprocess
16import sysconfig
17from copy import copy
18
19# Need to make sure to not import 'site' if someone specified ``-S`` at the
20# command-line. Detect this by just making sure 'site' has not been imported
21# already.
22if "site" in sys.modules:
23 import site
24else:
25 raise unittest.SkipTest("importation of site.py suppressed")
26
27if site.ENABLE_USER_SITE and not os.path.isdir(site.USER_SITE):
28 # need to add user site directory for tests
29 os.makedirs(site.USER_SITE)
30 site.addsitedir(site.USER_SITE)
31
32class HelperFunctionsTests(unittest.TestCase):
33 """Tests for helper functions.
34
35 The setting of the encoding (set using sys.setdefaultencoding) used by
36 the Unicode implementation is not tested.
37
38 """
39
40 def setUp(self):
41 """Save a copy of sys.path"""
42 self.sys_path = sys.path[:]
43 self.old_base = site.USER_BASE
44 self.old_site = site.USER_SITE
45 self.old_prefixes = site.PREFIXES
46 self.old_vars = copy(sysconfig._CONFIG_VARS)
47
48 def tearDown(self):
49 """Restore sys.path"""
50 sys.path[:] = self.sys_path
51 site.USER_BASE = self.old_base
52 site.USER_SITE = self.old_site
53 site.PREFIXES = self.old_prefixes
54 sysconfig._CONFIG_VARS = self.old_vars
55
56 def test_makepath(self):
57 # Test makepath() have an absolute path for its first return value
58 # and a case-normalized version of the absolute path for its
59 # second value.
60 path_parts = ("Beginning", "End")
61 original_dir = os.path.join(*path_parts)
62 abs_dir, norm_dir = site.makepath(*path_parts)
63 self.assertEqual(os.path.abspath(original_dir), abs_dir)
64 if original_dir == os.path.normcase(original_dir):
65 self.assertEqual(abs_dir, norm_dir)
66 else:
67 self.assertEqual(os.path.normcase(abs_dir), norm_dir)
68
69 def test_init_pathinfo(self):
70 dir_set = site._init_pathinfo()
71 for entry in [site.makepath(path)[1] for path in sys.path
72 if path and os.path.isdir(path)]:
73 self.assertIn(entry, dir_set,
74 "%s from sys.path not found in set returned "
75 "by _init_pathinfo(): %s" % (entry, dir_set))
76
77 def pth_file_tests(self, pth_file):
78 """Contain common code for testing results of reading a .pth file"""
79 self.assertIn(pth_file.imported, sys.modules,
80 "%s not in sys.modules" % pth_file.imported)
81 self.assertIn(site.makepath(pth_file.good_dir_path)[0], sys.path)
82 self.assertFalse(os.path.exists(pth_file.bad_dir_path))
83
84 def test_addpackage(self):
85 # Make sure addpackage() imports if the line starts with 'import',
86 # adds directories to sys.path for any line in the file that is not a
87 # comment or import that is a valid directory name for where the .pth
88 # file resides; invalid directories are not added
89 pth_file = PthFile()
90 pth_file.cleanup(prep=True) # to make sure that nothing is
91 # pre-existing that shouldn't be
92 try:
93 pth_file.create()
94 site.addpackage(pth_file.base_dir, pth_file.filename, set())
95 self.pth_file_tests(pth_file)
96 finally:
97 pth_file.cleanup()
98
99 def make_pth(self, contents, pth_dir='.', pth_name=TESTFN):
100 # Create a .pth file and return its (abspath, basename).
101 pth_dir = os.path.abspath(pth_dir)
102 pth_basename = pth_name + '.pth'
103 pth_fn = os.path.join(pth_dir, pth_basename)
104 pth_file = open(pth_fn, 'w')
105 self.addCleanup(lambda: os.remove(pth_fn))
106 pth_file.write(contents)
107 pth_file.close()
108 return pth_dir, pth_basename
109
110 def test_addpackage_import_bad_syntax(self):
111 # Issue 10642
112 pth_dir, pth_fn = self.make_pth("import bad)syntax\n")
113 with captured_output("stderr") as err_out:
114 site.addpackage(pth_dir, pth_fn, set())
115 self.assertRegexpMatches(err_out.getvalue(), "line 1")
116 self.assertRegexpMatches(err_out.getvalue(),
117 re.escape(os.path.join(pth_dir, pth_fn)))
118 # XXX: the previous two should be independent checks so that the
119 # order doesn't matter. The next three could be a single check
120 # but my regex foo isn't good enough to write it.
121 self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
122 self.assertRegexpMatches(err_out.getvalue(), r'import bad\)syntax')
123 self.assertRegexpMatches(err_out.getvalue(), 'SyntaxError')
124
125 def test_addpackage_import_bad_exec(self):
126 # Issue 10642
127 pth_dir, pth_fn = self.make_pth("randompath\nimport nosuchmodule\n")
128 with captured_output("stderr") as err_out:
129 site.addpackage(pth_dir, pth_fn, set())
130 self.assertRegexpMatches(err_out.getvalue(), "line 2")
131 self.assertRegexpMatches(err_out.getvalue(),
132 re.escape(os.path.join(pth_dir, pth_fn)))
133 # XXX: ditto previous XXX comment.
134 self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
135 self.assertRegexpMatches(err_out.getvalue(), 'ImportError')
136
137 @unittest.skipIf(sys.platform == "win32", "Windows does not raise an "
138 "error for file paths containing null characters")
139 def test_addpackage_import_bad_pth_file(self):
140 # Issue 5258
141 pth_dir, pth_fn = self.make_pth("abc\x00def\n")
142 with captured_output("stderr") as err_out:
143 site.addpackage(pth_dir, pth_fn, set())
144 self.assertRegexpMatches(err_out.getvalue(), "line 1")
145 self.assertRegexpMatches(err_out.getvalue(),
146 re.escape(os.path.join(pth_dir, pth_fn)))
147 # XXX: ditto previous XXX comment.
148 self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
149 self.assertRegexpMatches(err_out.getvalue(), 'TypeError')
150
151 def test_addsitedir(self):
152 # Same tests for test_addpackage since addsitedir() essentially just
153 # calls addpackage() for every .pth file in the directory
154 pth_file = PthFile()
155 pth_file.cleanup(prep=True) # Make sure that nothing is pre-existing
156 # that is tested for
157 try:
158 pth_file.create()
159 site.addsitedir(pth_file.base_dir, set())
160 self.pth_file_tests(pth_file)
161 finally:
162 pth_file.cleanup()
163
164 @unittest.skipUnless(site.ENABLE_USER_SITE, "requires access to PEP 370 "
165 "user-site (site.ENABLE_USER_SITE)")
166 def test_s_option(self):
167 usersite = site.USER_SITE
168 self.assertIn(usersite, sys.path)
169
170 env = os.environ.copy()
171 rc = subprocess.call([sys.executable, '-c',
172 'import sys; sys.exit(%r in sys.path)' % usersite],
173 env=env)
174 self.assertEqual(rc, 1, "%r is not in sys.path (sys.exit returned %r)"
175 % (usersite, rc))
176
177 env = os.environ.copy()
178 rc = subprocess.call([sys.executable, '-s', '-c',
179 'import sys; sys.exit(%r in sys.path)' % usersite],
180 env=env)
181 self.assertEqual(rc, 0)
182
183 env = os.environ.copy()
184 env["PYTHONNOUSERSITE"] = "1"
185 rc = subprocess.call([sys.executable, '-c',
186 'import sys; sys.exit(%r in sys.path)' % usersite],
187 env=env)
188 self.assertEqual(rc, 0)
189
190 env = os.environ.copy()
191 env["PYTHONUSERBASE"] = "/tmp"
192 rc = subprocess.call([sys.executable, '-c',
193 'import sys, site; sys.exit(site.USER_BASE.startswith("/tmp"))'],
194 env=env)
195 self.assertEqual(rc, 1)
196
197 def test_getuserbase(self):
198 site.USER_BASE = None
199 user_base = site.getuserbase()
200
201 # the call sets site.USER_BASE
202 self.assertEqual(site.USER_BASE, user_base)
203
204 # let's set PYTHONUSERBASE and see if it uses it
205 site.USER_BASE = None
206 import sysconfig
207 sysconfig._CONFIG_VARS = None
208
209 with EnvironmentVarGuard() as environ:
210 environ['PYTHONUSERBASE'] = 'xoxo'
211 self.assertTrue(site.getuserbase().startswith('xoxo'),
212 site.getuserbase())
213
214 def test_getusersitepackages(self):
215 site.USER_SITE = None
216 site.USER_BASE = None
217 user_site = site.getusersitepackages()
218
219 # the call sets USER_BASE *and* USER_SITE
220 self.assertEqual(site.USER_SITE, user_site)
221 self.assertTrue(user_site.startswith(site.USER_BASE), user_site)
222
223 def test_getsitepackages(self):
224 site.PREFIXES = ['xoxo']
225 dirs = site.getsitepackages()
226
227 if sys.platform in ('os2emx', 'riscos'):
228 self.assertEqual(len(dirs), 1)
229 wanted = os.path.join('xoxo', 'Lib', 'site-packages')
230 self.assertEqual(dirs[0], wanted)
231 elif (sys.platform == "darwin" and
232 sysconfig.get_config_var("PYTHONFRAMEWORK")):
233 # OS X framework builds
234 site.PREFIXES = ['Python.framework']
235 dirs = site.getsitepackages()
236 self.assertEqual(len(dirs), 3)
237 wanted = os.path.join('/Library',
238 sysconfig.get_config_var("PYTHONFRAMEWORK"),
239 sys.version[:3],
240 'site-packages')
241 self.assertEqual(dirs[2], wanted)
242 elif os.sep == '/':
243 # OS X non-framwework builds, Linux, FreeBSD, etc
244 self.assertEqual(len(dirs), 2)
245 wanted = os.path.join('xoxo', 'lib', 'python' + sys.version[:3],
246 'site-packages')
247 self.assertEqual(dirs[0], wanted)
248 wanted = os.path.join('xoxo', 'lib', 'site-python')
249 self.assertEqual(dirs[1], wanted)
250 else:
251 # other platforms
252 self.assertEqual(len(dirs), 2)
253 self.assertEqual(dirs[0], 'xoxo')
254 wanted = os.path.join('xoxo', 'lib', 'site-packages')
255 self.assertEqual(dirs[1], wanted)
256
257class PthFile(object):
258 """Helper class for handling testing of .pth files"""
259
260 def __init__(self, filename_base=TESTFN, imported="time",
261 good_dirname="__testdir__", bad_dirname="__bad"):
262 """Initialize instance variables"""
263 self.filename = filename_base + ".pth"
264 self.base_dir = os.path.abspath('')
265 self.file_path = os.path.join(self.base_dir, self.filename)
266 self.imported = imported
267 self.good_dirname = good_dirname
268 self.bad_dirname = bad_dirname
269 self.good_dir_path = os.path.join(self.base_dir, self.good_dirname)
270 self.bad_dir_path = os.path.join(self.base_dir, self.bad_dirname)
271
272 def create(self):
273 """Create a .pth file with a comment, blank lines, an ``import
274 <self.imported>``, a line with self.good_dirname, and a line with
275 self.bad_dirname.
276
277 Creation of the directory for self.good_dir_path (based off of
278 self.good_dirname) is also performed.
279
280 Make sure to call self.cleanup() to undo anything done by this method.
281
282 """
283 FILE = open(self.file_path, 'w')
284 try:
285 print>>FILE, "#import @bad module name"
286 print>>FILE, "\n"
287 print>>FILE, "import %s" % self.imported
288 print>>FILE, self.good_dirname
289 print>>FILE, self.bad_dirname
290 finally:
291 FILE.close()
292 os.mkdir(self.good_dir_path)
293
294 def cleanup(self, prep=False):
295 """Make sure that the .pth file is deleted, self.imported is not in
296 sys.modules, and that both self.good_dirname and self.bad_dirname are
297 not existing directories."""
298 if os.path.exists(self.file_path):
299 os.remove(self.file_path)
300 if prep:
301 self.imported_module = sys.modules.get(self.imported)
302 if self.imported_module:
303 del sys.modules[self.imported]
304 else:
305 if self.imported_module:
306 sys.modules[self.imported] = self.imported_module
307 if os.path.exists(self.good_dir_path):
308 os.rmdir(self.good_dir_path)
309 if os.path.exists(self.bad_dir_path):
310 os.rmdir(self.bad_dir_path)
311
312class ImportSideEffectTests(unittest.TestCase):
313 """Test side-effects from importing 'site'."""
314
315 def setUp(self):
316 """Make a copy of sys.path"""
317 self.sys_path = sys.path[:]
318
319 def tearDown(self):
320 """Restore sys.path"""
321 sys.path[:] = self.sys_path
322
323 def test_abs__file__(self):
324 # Make sure all imported modules have their __file__ attribute
325 # as an absolute path.
326 # Handled by abs__file__()
327 site.abs__file__()
328 for module in (sys, os, __builtin__):
329 try:
330 self.assertTrue(os.path.isabs(module.__file__), repr(module))
331 except AttributeError:
332 continue
333 # We could try everything in sys.modules; however, when regrtest.py
334 # runs something like test_frozen before test_site, then we will
335 # be testing things loaded *after* test_site did path normalization
336
337 def test_no_duplicate_paths(self):
338 # No duplicate paths should exist in sys.path
339 # Handled by removeduppaths()
340 site.removeduppaths()
341 seen_paths = set()
342 for path in sys.path:
343 self.assertNotIn(path, seen_paths)
344 seen_paths.add(path)
345
346 def test_add_build_dir(self):
347 # Test that the build directory's Modules directory is used when it
348 # should be.
349 # XXX: implement
350 pass
351
352 def test_setting_quit(self):
353 # 'quit' and 'exit' should be injected into __builtin__
354 self.assertTrue(hasattr(__builtin__, "quit"))
355 self.assertTrue(hasattr(__builtin__, "exit"))
356
357 def test_setting_copyright(self):
358 # 'copyright' and 'credits' should be in __builtin__
359 self.assertTrue(hasattr(__builtin__, "copyright"))
360 self.assertTrue(hasattr(__builtin__, "credits"))
361
362 def test_setting_help(self):
363 # 'help' should be set in __builtin__
364 self.assertTrue(hasattr(__builtin__, "help"))
365
366 def test_aliasing_mbcs(self):
367 if sys.platform == "win32":
368 import locale
369 if locale.getdefaultlocale()[1].startswith('cp'):
370 for value in encodings.aliases.aliases.itervalues():
371 if value == "mbcs":
372 break
373 else:
374 self.fail("did not alias mbcs")
375
376 def test_setdefaultencoding_removed(self):
377 # Make sure sys.setdefaultencoding is gone
378 self.assertTrue(not hasattr(sys, "setdefaultencoding"))
379
380 def test_sitecustomize_executed(self):
381 # If sitecustomize is available, it should have been imported.
382 if "sitecustomize" not in sys.modules:
383 try:
384 import sitecustomize
385 except ImportError:
386 pass
387 else:
388 self.fail("sitecustomize not imported automatically")
389
390def test_main():
391 run_unittest(HelperFunctionsTests, ImportSideEffectTests)
392
393if __name__ == "__main__":
394 test_main()
Note: See TracBrowser for help on using the repository browser.