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64a8470246
create a testing method that can be called to make sure that the handling of the .pth file was correct.
239 lines
8.3 KiB
Python
239 lines
8.3 KiB
Python
"""Tests for 'site'.
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Tests assume the initial paths in sys.path once the interpreter has begun
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executing have not been removed.
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"""
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import unittest
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from test.test_support import TestSkipped, TestFailed, run_unittest, TESTFN
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import __builtin__
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import os
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import sys
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import encodings
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import tempfile
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# Need to make sure to not import 'site' if someone specified ``-S`` at the
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# command-line. Detect this by just making sure 'site' has not been imported
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# already.
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if "site" in sys.modules:
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import site
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else:
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raise TestSkipped("importation of site.py suppressed")
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class HelperFunctionsTests(unittest.TestCase):
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"""Tests for helper functions.
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The setting of the encoding (set using sys.setdefaultencoding) used by
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the Unicode implementation is not tested.
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"""
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def setUp(self):
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"""Save a copy of sys.path"""
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self.sys_path = sys.path[:]
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def tearDown(self):
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"""Restore sys.path"""
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sys.path = self.sys_path
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def test_makepath(self):
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# Test makepath() have an absolute path for its first return value
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# and a case-normalized version of the absolute path for its
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# second value.
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path_parts = ("Beginning", "End")
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original_dir = os.path.join(*path_parts)
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abs_dir, norm_dir = site.makepath(*path_parts)
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self.failUnlessEqual(os.path.abspath(original_dir), abs_dir)
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if original_dir == os.path.normcase(original_dir):
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self.failUnlessEqual(abs_dir, norm_dir)
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else:
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self.failUnlessEqual(os.path.normcase(abs_dir), norm_dir)
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def test_init_pathinfo(self):
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dir_set = site._init_pathinfo()
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for entry in [site.makepath(path)[1] for path in sys.path
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if path and os.path.isdir(path)]:
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self.failUnless(entry in dir_set,
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"%s from sys.path not found in set returned "
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"by _init_pathinfo(): %s" % (entry, dir_set))
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def test_addpackage(self):
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# Make sure addpackage() imports if the line starts with 'import',
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# adds directories to sys.path for any line in the file that is not a
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# comment or import that is a valid directory name for where the .pth
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# file resides; invalid directories are not added
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pth_file = PthFile()
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pth_file.cleanup() # to make sure that nothing is pre-existing that
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# shouldn't be
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try:
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pth_file.create()
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site.addpackage(pth_file.base_dir, pth_file.filename, set())
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unittest.FunctionTestCase(pth_file.test)
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finally:
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pth_file.cleanup()
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def test_addsitedir(self):
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# Same tests for test_addpackage since addsitedir() essentially just
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# calls addpackage() for every .pth file in the directory
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pth_file = PthFile()
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pth_file.cleanup() # Make sure that nothing is pre-existing that is
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# tested for
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try:
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site.addsitedir(pth_file.base_dir, set())
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unittest.FunctionTestCase(pth_file.test)
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finally:
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pth_file.cleanup()
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class PthFile(object):
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"""Helper class for handling testing of .pth files"""
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def __init__(self, filename_base=TESTFN, imported="time",
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good_dirname="__testdir__", bad_dirname="__bad"):
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"""Initialize instance variables"""
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self.filename = filename_base + ".pth"
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self.base_dir = os.path.abspath('')
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self.file_path = os.path.join(self.base_dir, self.filename)
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self.imported = "time"
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self.good_dirname = good_dirname
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self.bad_dirname = bad_dirname
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self.good_dir_path = os.path.join(self.base_dir, self.good_dirname)
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self.bad_dir_path = os.path.join(self.base_dir, self.bad_dirname)
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def create(self):
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"""Create a .pth file with a comment, blank lines, an ``import
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<self.imported>``, a line with self.good_dirname, and a line with
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self.bad_dirname.
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Creation of the directory for self.good_dir_path (based off of
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self.good_dirname) is also performed.
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Make sure to call self.cleanup() to undo anything done by this method.
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"""
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FILE = open(self.file_path, 'wU')
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try:
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print>>FILE, "#import @bad module name"
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print>>FILE, "\n"
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print>>FILE, "import %s" % self.imported
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print>>FILE, self.good_dirname
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print>>FILE, self.bad_dirname
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finally:
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FILE.close()
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os.mkdir(self.good_dir_path)
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def cleanup(self):
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"""Make sure that the .pth file is deleted, self.imported is not in
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sys.modules, and that both self.good_dirname and self.bad_dirname are
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not existing directories."""
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try:
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os.remove(self.file_path)
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except OSError:
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pass
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try:
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del sys.modules[self.imported]
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except KeyError:
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pass
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try:
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os.rmdir(self.good_dir_path)
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except OSError:
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pass
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try:
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os.rmdir(self.bad_dir_path)
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except OSError:
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pass
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def test(self):
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"""Test to make sure that was and was not supposed to be created by
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using the .pth file occurred"""
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assert site.makepath(self.good_dir_path)[0] in sys.path
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assert self.imported in sys.modules
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assert not os.path.exists(self.bad_dir_path)
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class ImportSideEffectTests(unittest.TestCase):
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"""Test side-effects from importing 'site'."""
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def setUp(self):
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"""Make a copy of sys.path"""
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self.sys_path = sys.path[:]
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def tearDown(self):
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"""Restore sys.path"""
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sys.path = self.sys_path
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def test_abs__file__(self):
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# Make sure all imported modules have their __file__ attribute
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# as an absolute path.
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# Handled by abs__file__()
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site.abs__file__()
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for module in (sys, os, __builtin__):
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try:
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self.failUnless(os.path.isabs(module.__file__), `module`)
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except AttributeError:
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continue
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# We could try everything in sys.modules; however, when regrtest.py
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# runs something like test_frozen before test_site, then we will
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# be testing things loaded *after* test_site did path normalization
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def test_no_duplicate_paths(self):
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# No duplicate paths should exist in sys.path
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# Handled by removeduppaths()
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site.removeduppaths()
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seen_paths = set()
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for path in sys.path:
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self.failUnless(path not in seen_paths)
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seen_paths.add(path)
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def test_add_build_dir(self):
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# Test that the build directory's Modules directory is used when it
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# should be.
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# XXX: implement
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pass
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def test_setting_quit(self):
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# 'quit' and 'exit' should be injected into __builtin__
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self.failUnless(hasattr(__builtin__, "quit"))
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self.failUnless(hasattr(__builtin__, "exit"))
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def test_setting_copyright(self):
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# 'copyright' and 'credits' should be in __builtin__
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self.failUnless(hasattr(__builtin__, "copyright"))
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self.failUnless(hasattr(__builtin__, "credits"))
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def test_setting_help(self):
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# 'help' should be set in __builtin__
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self.failUnless(hasattr(__builtin__, "help"))
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def test_aliasing_mbcs(self):
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if sys.platform == "win32":
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import locale
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if locale.getdefaultlocale()[1].startswith('cp'):
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for value in encodings.aliases.aliases.itervalues():
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if value == "mbcs":
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break
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else:
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self.fail("did not alias mbcs")
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def test_setdefaultencoding_removed(self):
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# Make sure sys.setdefaultencoding is gone
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self.failUnless(not hasattr(sys, "setdefaultencoding"))
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def test_sitecustomize_executed(self):
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# If sitecustomize is available, it should have been imported.
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if not sys.modules.has_key("sitecustomize"):
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try:
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import sitecustomize
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except ImportError:
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pass
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else:
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self.fail("sitecustomize not imported automatically")
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def test_main():
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run_unittest(HelperFunctionsTests, ImportSideEffectTests)
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if __name__ == "__main__":
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test_main()
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