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