| 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.) |
| # |
| # This test fails on platforms on which the zlib module is |
| # statically linked, but the problem it tests for can't |
| # occur in that case (builtin modules are always found first), |
| # so we'll simply skip it then. Bug #765456. |
| # |
| if "zlib" in sys.builtin_module_names: |
| return |
| 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() |