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- import sys
- import os
- import marshal
- import imp
- import struct
- import time
-
- import zlib # implied prerequisite
- from zipfile import ZipFile, ZipInfo, ZIP_STORED, ZIP_DEFLATED
- from test import test_support
- from test.test_importhooks import ImportHooksBaseTestCase, test_src, test_co
-
- import zipimport
-
-
- def make_pyc(co, mtime):
- data = marshal.dumps(co)
- if type(mtime) is type(0.0):
- # Mac mtimes need a bit of special casing
- if mtime < 0x7fffffff:
- mtime = int(mtime)
- else:
- mtime = int(-0x100000000L + long(mtime))
- pyc = imp.get_magic() + struct.pack("<i", int(mtime)) + data
- return pyc
-
- NOW = time.time()
- test_pyc = make_pyc(test_co, NOW)
-
-
- if __debug__:
- pyc_ext = ".pyc"
- else:
- pyc_ext = ".pyo"
-
-
- TESTMOD = "ziptestmodule"
- TESTPACK = "ziptestpackage"
- TESTPACK2 = "ziptestpackage2"
- TEMP_ZIP = os.path.abspath("junk95142" + os.extsep + "zip")
-
- class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
-
- compression = ZIP_STORED
-
- def setUp(self):
- # We're reusing the zip archive path, so we must clear the
- # cached directory info.
- zipimport._zip_directory_cache.clear()
- ImportHooksBaseTestCase.setUp(self)
-
- def doTest(self, expected_ext, files, *modules, **kw):
- z = ZipFile(TEMP_ZIP, "w")
- try:
- for name, (mtime, data) in files.items():
- zinfo = ZipInfo(name, time.localtime(mtime))
- zinfo.compress_type = self.compression
- z.writestr(zinfo, data)
- z.close()
-
- stuff = kw.get("stuff", None)
- if stuff is not None:
- # Prepend 'stuff' to the start of the zipfile
- f = open(TEMP_ZIP, "rb")
- data = f.read()
- f.close()
-
- f = open(TEMP_ZIP, "wb")
- f.write(stuff)
- f.write(data)
- f.close()
-
- sys.path.insert(0, TEMP_ZIP)
-
- mod = __import__(".".join(modules), globals(), locals(),
- ["__dummy__"])
- if expected_ext:
- file = mod.get_file()
- self.assertEquals(file, os.path.join(TEMP_ZIP,
- *modules) + expected_ext)
- finally:
- z.close()
- os.remove(TEMP_ZIP)
-
- def testAFakeZlib(self):
- #
- # This could cause a stack overflow before: importing zlib.py
- # from a compressed archive would cause zlib to be imported
- # which would find zlib.py in the archive, which would... etc.
- #
- # This test *must* be executed first: it must be the first one
- # to trigger zipimport to import zlib (zipimport caches the
- # zlib.decompress function object, after which the problem being
- # tested here wouldn't be a problem anymore...
- # (Hence the 'A' in the test method name: to make it the first
- # item in a list sorted by name, like unittest.makeSuite() does.)
- #
- if "zlib" in sys.modules:
- del sys.modules["zlib"]
- files = {"zlib.py": (NOW, test_src)}
- try:
- self.doTest(".py", files, "zlib")
- except ImportError:
- if self.compression != ZIP_DEFLATED:
- self.fail("expected test to not raise ImportError")
- else:
- if self.compression != ZIP_STORED:
- self.fail("expected test to raise ImportError")
-
- def testPy(self):
- files = {TESTMOD + ".py": (NOW, test_src)}
- self.doTest(".py", files, TESTMOD)
-
- def testPyc(self):
- files = {TESTMOD + pyc_ext: (NOW, test_pyc)}
- self.doTest(pyc_ext, files, TESTMOD)
-
- def testBoth(self):
- files = {TESTMOD + ".py": (NOW, test_src),
- TESTMOD + pyc_ext: (NOW, test_pyc)}
- self.doTest(pyc_ext, files, TESTMOD)
-
- def testEmptyPy(self):
- files = {TESTMOD + ".py": (NOW, "")}
- self.doTest(None, files, TESTMOD)
-
- def testBadMagic(self):
- # make pyc magic word invalid, forcing loading from .py
- m0 = ord(test_pyc[0])
- m0 ^= 0x04 # flip an arbitrary bit
- badmagic_pyc = chr(m0) + test_pyc[1:]
- files = {TESTMOD + ".py": (NOW, test_src),
- TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
- self.doTest(".py", files, TESTMOD)
-
- def testBadMagic2(self):
- # make pyc magic word invalid, causing an ImportError
- m0 = ord(test_pyc[0])
- m0 ^= 0x04 # flip an arbitrary bit
- badmagic_pyc = chr(m0) + test_pyc[1:]
- files = {TESTMOD + pyc_ext: (NOW, badmagic_pyc)}
- try:
- self.doTest(".py", files, TESTMOD)
- except ImportError:
- pass
- else:
- self.fail("expected ImportError; import from bad pyc")
-
- def testBadMTime(self):
- t3 = ord(test_pyc[7])
- t3 ^= 0x02 # flip the second bit -- not the first as that one
- # isn't stored in the .py's mtime in the zip archive.
- badtime_pyc = test_pyc[:7] + chr(t3) + test_pyc[8:]
- files = {TESTMOD + ".py": (NOW, test_src),
- TESTMOD + pyc_ext: (NOW, badtime_pyc)}
- self.doTest(".py", files, TESTMOD)
-
- def testPackage(self):
- packdir = TESTPACK + os.sep
- files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
- packdir + TESTMOD + pyc_ext: (NOW, test_pyc)}
- self.doTest(pyc_ext, files, TESTPACK, TESTMOD)
-
- def testDeepPackage(self):
- packdir = TESTPACK + os.sep
- packdir2 = packdir + TESTPACK2 + os.sep
- files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
- packdir2 + "__init__" + pyc_ext: (NOW, test_pyc),
- packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)}
- self.doTest(pyc_ext, files, TESTPACK, TESTPACK2, TESTMOD)
-
- def testGetData(self):
- z = ZipFile(TEMP_ZIP, "w")
- z.compression = self.compression
- try:
- name = "testdata.dat"
- data = "".join([chr(x) for x in range(256)]) * 500
- z.writestr(name, data)
- z.close()
- zi = zipimport.zipimporter(TEMP_ZIP)
- self.assertEquals(data, zi.get_data(name))
- finally:
- z.close()
- os.remove(TEMP_ZIP)
-
- def testImporterAttr(self):
- src = """if 1: # indent hack
- def get_file():
- return __file__
- if __loader__.get_data("some.data") != "some data":
- raise AssertionError, "bad data"\n"""
- pyc = make_pyc(compile(src, "<???>", "exec"), NOW)
- files = {TESTMOD + pyc_ext: (NOW, pyc),
- "some.data": (NOW, "some data")}
- self.doTest(pyc_ext, files, TESTMOD)
-
- def testImport_WithStuff(self):
- # try importing from a zipfile which contains additional
- # stuff at the beginning of the file
- files = {TESTMOD + ".py": (NOW, test_src)}
- self.doTest(".py", files, TESTMOD,
- stuff="Some Stuff"*31)
-
- class CompressedZipImportTestCase(UncompressedZipImportTestCase):
- compression = ZIP_DEFLATED
-
-
- def test_main():
- test_support.run_unittest(
- UncompressedZipImportTestCase,
- CompressedZipImportTestCase
- )
-
- if __name__ == "__main__":
- test_main()
-