477 lines
17 KiB
Python
477 lines
17 KiB
Python
import sys
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import os
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import marshal
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import imp
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import struct
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import time
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import unittest
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from test import support
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from test.test_importhooks import ImportHooksBaseTestCase, test_src, test_co
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from zipfile import ZipFile, ZipInfo, ZIP_STORED, ZIP_DEFLATED
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import zipimport
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import linecache
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import doctest
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import inspect
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import io
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from traceback import extract_tb, extract_stack, print_tb
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raise_src = 'def do_raise(): raise TypeError\n'
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def make_pyc(co, mtime, size):
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data = marshal.dumps(co)
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if type(mtime) is type(0.0):
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# Mac mtimes need a bit of special casing
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if mtime < 0x7fffffff:
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mtime = int(mtime)
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else:
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mtime = int(-0x100000000 + int(mtime))
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pyc = imp.get_magic() + struct.pack("<ii", int(mtime), size & 0xFFFFFFFF) + data
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return pyc
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def module_path_to_dotted_name(path):
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return path.replace(os.sep, '.')
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NOW = time.time()
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test_pyc = make_pyc(test_co, NOW, len(test_src))
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TESTMOD = "ziptestmodule"
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TESTPACK = "ziptestpackage"
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TESTPACK2 = "ziptestpackage2"
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TEMP_ZIP = os.path.abspath("junk95142.zip")
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pyc_file = imp.cache_from_source(TESTMOD + '.py')
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pyc_ext = ('.pyc' if __debug__ else '.pyo')
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class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
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compression = ZIP_STORED
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def setUp(self):
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# We're reusing the zip archive path, so we must clear the
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# cached directory info and linecache
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linecache.clearcache()
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zipimport._zip_directory_cache.clear()
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ImportHooksBaseTestCase.setUp(self)
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def doTest(self, expected_ext, files, *modules, **kw):
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z = ZipFile(TEMP_ZIP, "w")
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try:
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for name, (mtime, data) in files.items():
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zinfo = ZipInfo(name, time.localtime(mtime))
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zinfo.compress_type = self.compression
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z.writestr(zinfo, data)
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z.close()
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stuff = kw.get("stuff", None)
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if stuff is not None:
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# Prepend 'stuff' to the start of the zipfile
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with open(TEMP_ZIP, "rb") as f:
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data = f.read()
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with open(TEMP_ZIP, "wb") as f:
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f.write(stuff)
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f.write(data)
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sys.path.insert(0, TEMP_ZIP)
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mod = __import__(".".join(modules), globals(), locals(),
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["__dummy__"])
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call = kw.get('call')
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if call is not None:
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call(mod)
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if expected_ext:
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file = mod.get_file()
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self.assertEqual(file, os.path.join(TEMP_ZIP,
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*modules) + expected_ext)
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finally:
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z.close()
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os.remove(TEMP_ZIP)
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def testAFakeZlib(self):
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#
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# This could cause a stack overflow before: importing zlib.py
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# from a compressed archive would cause zlib to be imported
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# which would find zlib.py in the archive, which would... etc.
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#
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# This test *must* be executed first: it must be the first one
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# to trigger zipimport to import zlib (zipimport caches the
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# zlib.decompress function object, after which the problem being
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# tested here wouldn't be a problem anymore...
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# (Hence the 'A' in the test method name: to make it the first
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# item in a list sorted by name, like unittest.makeSuite() does.)
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#
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# This test fails on platforms on which the zlib module is
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# statically linked, but the problem it tests for can't
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# occur in that case (builtin modules are always found first),
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# so we'll simply skip it then. Bug #765456.
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#
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if "zlib" in sys.builtin_module_names:
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return
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if "zlib" in sys.modules:
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del sys.modules["zlib"]
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files = {"zlib.py": (NOW, test_src)}
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try:
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self.doTest(".py", files, "zlib")
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except ImportError:
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if self.compression != ZIP_DEFLATED:
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self.fail("expected test to not raise ImportError")
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else:
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if self.compression != ZIP_STORED:
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self.fail("expected test to raise ImportError")
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def testPy(self):
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files = {TESTMOD + ".py": (NOW, test_src)}
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self.doTest(".py", files, TESTMOD)
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def testPyc(self):
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files = {TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTMOD)
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def testBoth(self):
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTMOD)
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def testEmptyPy(self):
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files = {TESTMOD + ".py": (NOW, "")}
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self.doTest(None, files, TESTMOD)
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def testBadMagic(self):
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# make pyc magic word invalid, forcing loading from .py
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badmagic_pyc = bytearray(test_pyc)
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badmagic_pyc[0] ^= 0x04 # flip an arbitrary bit
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
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self.doTest(".py", files, TESTMOD)
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def testBadMagic2(self):
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# make pyc magic word invalid, causing an ImportError
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badmagic_pyc = bytearray(test_pyc)
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badmagic_pyc[0] ^= 0x04 # flip an arbitrary bit
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files = {TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
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try:
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self.doTest(".py", files, TESTMOD)
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except ImportError:
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pass
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else:
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self.fail("expected ImportError; import from bad pyc")
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def testBadMTime(self):
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badtime_pyc = bytearray(test_pyc)
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# flip the second bit -- not the first as that one isn't stored in the
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# .py's mtime in the zip archive.
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badtime_pyc[7] ^= 0x02
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, badtime_pyc)}
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self.doTest(".py", files, TESTMOD)
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def testPackage(self):
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packdir = TESTPACK + os.sep
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files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir + TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTPACK, TESTMOD)
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def testDeepPackage(self):
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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self.doTest(pyc_ext, files, TESTPACK, TESTPACK2, TESTMOD)
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def testZipImporterMethods(self):
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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z = ZipFile(TEMP_ZIP, "w")
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try:
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for name, (mtime, data) in files.items():
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zinfo = ZipInfo(name, time.localtime(mtime))
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zinfo.compress_type = self.compression
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z.writestr(zinfo, data)
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z.close()
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zi = zipimport.zipimporter(TEMP_ZIP)
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self.assertEqual(zi.archive, TEMP_ZIP)
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self.assertEqual(zi.is_package(TESTPACK), True)
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mod = zi.load_module(TESTPACK)
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self.assertEqual(zi.get_filename(TESTPACK), mod.__file__)
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self.assertEqual(zi.is_package(packdir + '__init__'), False)
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self.assertEqual(zi.is_package(packdir + TESTPACK2), True)
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self.assertEqual(zi.is_package(packdir2 + TESTMOD), False)
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mod_path = packdir2 + TESTMOD
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mod_name = module_path_to_dotted_name(mod_path)
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__import__(mod_name)
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mod = sys.modules[mod_name]
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self.assertEqual(zi.get_source(TESTPACK), None)
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self.assertEqual(zi.get_source(mod_path), None)
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self.assertEqual(zi.get_filename(mod_path), mod.__file__)
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# To pass in the module name instead of the path, we must use the
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# right importer
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loader = mod.__loader__
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self.assertEqual(loader.get_source(mod_name), None)
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self.assertEqual(loader.get_filename(mod_name), mod.__file__)
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# test prefix and archivepath members
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zi2 = zipimport.zipimporter(TEMP_ZIP + os.sep + TESTPACK)
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self.assertEqual(zi2.archive, TEMP_ZIP)
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self.assertEqual(zi2.prefix, TESTPACK + os.sep)
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finally:
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z.close()
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os.remove(TEMP_ZIP)
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def testZipImporterMethodsInSubDirectory(self):
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packdir = TESTPACK + os.sep
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packdir2 = packdir + TESTPACK2 + os.sep
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files = {packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
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packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
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z = ZipFile(TEMP_ZIP, "w")
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try:
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for name, (mtime, data) in files.items():
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zinfo = ZipInfo(name, time.localtime(mtime))
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zinfo.compress_type = self.compression
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z.writestr(zinfo, data)
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z.close()
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zi = zipimport.zipimporter(TEMP_ZIP + os.sep + packdir)
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self.assertEqual(zi.archive, TEMP_ZIP)
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self.assertEqual(zi.prefix, packdir)
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self.assertEqual(zi.is_package(TESTPACK2), True)
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mod = zi.load_module(TESTPACK2)
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self.assertEqual(zi.get_filename(TESTPACK2), mod.__file__)
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self.assertEqual(
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zi.is_package(TESTPACK2 + os.sep + '__init__'), False)
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self.assertEqual(
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zi.is_package(TESTPACK2 + os.sep + TESTMOD), False)
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mod_path = TESTPACK2 + os.sep + TESTMOD
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mod_name = module_path_to_dotted_name(mod_path)
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__import__(mod_name)
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mod = sys.modules[mod_name]
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self.assertEqual(zi.get_source(TESTPACK2), None)
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self.assertEqual(zi.get_source(mod_path), None)
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self.assertEqual(zi.get_filename(mod_path), mod.__file__)
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# To pass in the module name instead of the path, we must use the
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# right importer
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loader = mod.__loader__
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self.assertEqual(loader.get_source(mod_name), None)
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self.assertEqual(loader.get_filename(mod_name), mod.__file__)
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finally:
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z.close()
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os.remove(TEMP_ZIP)
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def testGetData(self):
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z = ZipFile(TEMP_ZIP, "w")
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z.compression = self.compression
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try:
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name = "testdata.dat"
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data = bytes(x for x in range(256))
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z.writestr(name, data)
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z.close()
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zi = zipimport.zipimporter(TEMP_ZIP)
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self.assertEqual(data, zi.get_data(name))
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self.assertIn('zipimporter object', repr(zi))
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finally:
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z.close()
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os.remove(TEMP_ZIP)
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def testImporterAttr(self):
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src = """if 1: # indent hack
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def get_file():
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return __file__
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if __loader__.get_data("some.data") != b"some data":
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raise AssertionError("bad data")\n"""
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pyc = make_pyc(compile(src, "<???>", "exec"), NOW, len(src))
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files = {TESTMOD + pyc_ext: (NOW, pyc),
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"some.data": (NOW, "some data")}
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self.doTest(pyc_ext, files, TESTMOD)
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def testImport_WithStuff(self):
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# try importing from a zipfile which contains additional
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# stuff at the beginning of the file
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files = {TESTMOD + ".py": (NOW, test_src)}
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self.doTest(".py", files, TESTMOD,
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stuff=b"Some Stuff"*31)
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def assertModuleSource(self, module):
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self.assertEqual(inspect.getsource(module), test_src)
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def testGetSource(self):
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files = {TESTMOD + ".py": (NOW, test_src)}
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self.doTest(".py", files, TESTMOD, call=self.assertModuleSource)
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def testGetCompiledSource(self):
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pyc = make_pyc(compile(test_src, "<???>", "exec"), NOW, len(test_src))
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files = {TESTMOD + ".py": (NOW, test_src),
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TESTMOD + pyc_ext: (NOW, pyc)}
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self.doTest(pyc_ext, files, TESTMOD, call=self.assertModuleSource)
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def runDoctest(self, callback):
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files = {TESTMOD + ".py": (NOW, test_src),
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"xyz.txt": (NOW, ">>> log.append(True)\n")}
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self.doTest(".py", files, TESTMOD, call=callback)
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def doDoctestFile(self, module):
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log = []
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old_master, doctest.master = doctest.master, None
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try:
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doctest.testfile(
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'xyz.txt', package=module, module_relative=True,
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globs=locals()
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)
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finally:
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doctest.master = old_master
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self.assertEqual(log,[True])
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def testDoctestFile(self):
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self.runDoctest(self.doDoctestFile)
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def doDoctestSuite(self, module):
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log = []
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doctest.DocFileTest(
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'xyz.txt', package=module, module_relative=True,
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globs=locals()
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).run()
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self.assertEqual(log,[True])
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def testDoctestSuite(self):
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self.runDoctest(self.doDoctestSuite)
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def doTraceback(self, module):
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try:
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module.do_raise()
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except:
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tb = sys.exc_info()[2].tb_next
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f,lno,n,line = extract_tb(tb, 1)[0]
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self.assertEqual(line, raise_src.strip())
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f,lno,n,line = extract_stack(tb.tb_frame, 1)[0]
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self.assertEqual(line, raise_src.strip())
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s = io.StringIO()
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print_tb(tb, 1, s)
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self.assertTrue(s.getvalue().endswith(raise_src))
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else:
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raise AssertionError("This ought to be impossible")
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def testTraceback(self):
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files = {TESTMOD + ".py": (NOW, raise_src)}
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self.doTest(None, files, TESTMOD, call=self.doTraceback)
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@unittest.skipIf(support.TESTFN_UNENCODABLE is None,
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"need an unencodable filename")
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def testUnencodable(self):
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filename = support.TESTFN_UNENCODABLE + ".zip"
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z = ZipFile(filename, "w")
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zinfo = ZipInfo(TESTMOD + ".py", time.localtime(NOW))
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zinfo.compress_type = self.compression
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z.writestr(zinfo, test_src)
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z.close()
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try:
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zipimport.zipimporter(filename)
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finally:
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os.remove(filename)
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@support.requires_zlib
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class CompressedZipImportTestCase(UncompressedZipImportTestCase):
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compression = ZIP_DEFLATED
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class BadFileZipImportTestCase(unittest.TestCase):
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def assertZipFailure(self, filename):
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self.assertRaises(zipimport.ZipImportError,
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zipimport.zipimporter, filename)
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def testNoFile(self):
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self.assertZipFailure('AdfjdkFJKDFJjdklfjs')
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def testEmptyFilename(self):
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self.assertZipFailure('')
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def testBadArgs(self):
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self.assertRaises(TypeError, zipimport.zipimporter, None)
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self.assertRaises(TypeError, zipimport.zipimporter, TESTMOD, kwd=None)
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def testFilenameTooLong(self):
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self.assertZipFailure('A' * 33000)
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def testEmptyFile(self):
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support.unlink(TESTMOD)
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support.create_empty_file(TESTMOD)
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self.assertZipFailure(TESTMOD)
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def testFileUnreadable(self):
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support.unlink(TESTMOD)
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fd = os.open(TESTMOD, os.O_CREAT, 000)
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try:
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os.close(fd)
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self.assertZipFailure(TESTMOD)
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finally:
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# If we leave "the read-only bit" set on Windows, nothing can
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# delete TESTMOD, and later tests suffer bogus failures.
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os.chmod(TESTMOD, 0o666)
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support.unlink(TESTMOD)
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def testNotZipFile(self):
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support.unlink(TESTMOD)
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fp = open(TESTMOD, 'w+')
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fp.write('a' * 22)
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fp.close()
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self.assertZipFailure(TESTMOD)
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# XXX: disabled until this works on Big-endian machines
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def _testBogusZipFile(self):
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support.unlink(TESTMOD)
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fp = open(TESTMOD, 'w+')
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fp.write(struct.pack('=I', 0x06054B50))
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fp.write('a' * 18)
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fp.close()
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z = zipimport.zipimporter(TESTMOD)
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try:
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self.assertRaises(TypeError, z.find_module, None)
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self.assertRaises(TypeError, z.load_module, None)
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self.assertRaises(TypeError, z.is_package, None)
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self.assertRaises(TypeError, z.get_code, None)
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self.assertRaises(TypeError, z.get_data, None)
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self.assertRaises(TypeError, z.get_source, None)
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error = zipimport.ZipImportError
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self.assertEqual(z.find_module('abc'), None)
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self.assertRaises(error, z.load_module, 'abc')
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self.assertRaises(error, z.get_code, 'abc')
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self.assertRaises(IOError, z.get_data, 'abc')
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self.assertRaises(error, z.get_source, 'abc')
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self.assertRaises(error, z.is_package, 'abc')
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finally:
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zipimport._zip_directory_cache.clear()
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def test_main():
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try:
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support.run_unittest(
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UncompressedZipImportTestCase,
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CompressedZipImportTestCase,
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BadFileZipImportTestCase,
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)
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finally:
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support.unlink(TESTMOD)
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if __name__ == "__main__":
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test_main()
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