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//usr/lib/python2.4/test/test_site.py
"""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, TestFailed, run_unittest, TESTFN import __builtin__ import os import sys import encodings import tempfile # 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, 'wU') try: print>>FILE, "#import @bad module name" print>>FILE, "\n" print>>FILE, "import %s" % self.imported print>>FILE, self.good_dirname print>>FILE, self.bad_dirname 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, __builtin__): try: self.failUnless(os.path.isabs(module.__file__), `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 __builtin__ self.failUnless(hasattr(__builtin__, "quit")) self.failUnless(hasattr(__builtin__, "exit")) def test_setting_copyright(self): # 'copyright' and 'credits' should be in __builtin__ self.failUnless(hasattr(__builtin__, "copyright")) self.failUnless(hasattr(__builtin__, "credits")) def test_setting_help(self): # 'help' should be set in __builtin__ self.failUnless(hasattr(__builtin__, "help")) def test_aliasing_mbcs(self): if sys.platform == "win32": import locale if locale.getdefaultlocale()[1].startswith('cp'): for value in encodings.aliases.aliases.itervalues(): 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 not sys.modules.has_key("sitecustomize"): 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()