1 import sys 2 import os 3 import marshal 4 import imp 5 import struct 6 import time 7 import unittest 8 9 from test import test_support 10 from test.test_importhooks import ImportHooksBaseTestCase, test_src, test_co 11 12 # some tests can be ran even without zlib 13 try: 14 import zlib 15 except ImportError: 16 zlib = None 17 18 from zipfile import ZipFile, ZipInfo, ZIP_STORED, ZIP_DEFLATED 19 20 import zipimport 21 import linecache 22 import doctest 23 import inspect 24 import StringIO 25 from traceback import extract_tb, extract_stack, print_tb 26 raise_src = 'def do_raise(): raise TypeError\n' 27 28 def make_pyc(co, mtime): 29 data = marshal.dumps(co) 30 if type(mtime) is type(0.0): 31 # Mac mtimes need a bit of special casing 32 if mtime < 0x7fffffff: 33 mtime = int(mtime) 34 else: 35 mtime = int(-0x100000000L + long(mtime)) 36 pyc = imp.get_magic() + struct.pack("<i", int(mtime)) + data 37 return pyc 38 39 def module_path_to_dotted_name(path): 40 return path.replace(os.sep, '.') 41 42 NOW = time.time() 43 test_pyc = make_pyc(test_co, NOW) 44 45 46 if __debug__: 47 pyc_ext = ".pyc" 48 else: 49 pyc_ext = ".pyo" 50 51 52 TESTMOD = "ziptestmodule" 53 TESTPACK = "ziptestpackage" 54 TESTPACK2 = "ziptestpackage2" 55 TEMP_ZIP = os.path.abspath("junk95142" + os.extsep + "zip") 56 57 58 class UncompressedZipImportTestCase(ImportHooksBaseTestCase): 59 60 compression = ZIP_STORED 61 62 def setUp(self): 63 # We're reusing the zip archive path, so we must clear the 64 # cached directory info and linecache 65 linecache.clearcache() 66 zipimport._zip_directory_cache.clear() 67 ImportHooksBaseTestCase.setUp(self) 68 69 def doTest(self, expected_ext, files, *modules, **kw): 70 z = ZipFile(TEMP_ZIP, "w") 71 try: 72 for name, (mtime, data) in files.items(): 73 zinfo = ZipInfo(name, time.localtime(mtime)) 74 zinfo.compress_type = self.compression 75 z.writestr(zinfo, data) 76 z.close() 77 78 stuff = kw.get("stuff", None) 79 if stuff is not None: 80 # Prepend 'stuff' to the start of the zipfile 81 f = open(TEMP_ZIP, "rb") 82 data = f.read() 83 f.close() 84 85 f = open(TEMP_ZIP, "wb") 86 f.write(stuff) 87 f.write(data) 88 f.close() 89 90 sys.path.insert(0, TEMP_ZIP) 91 92 mod = __import__(".".join(modules), globals(), locals(), 93 ["__dummy__"]) 94 95 call = kw.get('call') 96 if call is not None: 97 call(mod) 98 99 if expected_ext: 100 file = mod.get_file() 101 self.assertEqual(file, os.path.join(TEMP_ZIP, 102 *modules) + expected_ext) 103 finally: 104 z.close() 105 os.remove(TEMP_ZIP) 106 107 def testAFakeZlib(self): 108 # 109 # This could cause a stack overflow before: importing zlib.py 110 # from a compressed archive would cause zlib to be imported 111 # which would find zlib.py in the archive, which would... etc. 112 # 113 # This test *must* be executed first: it must be the first one 114 # to trigger zipimport to import zlib (zipimport caches the 115 # zlib.decompress function object, after which the problem being 116 # tested here wouldn't be a problem anymore... 117 # (Hence the 'A' in the test method name: to make it the first 118 # item in a list sorted by name, like unittest.makeSuite() does.) 119 # 120 # This test fails on platforms on which the zlib module is 121 # statically linked, but the problem it tests for can't 122 # occur in that case (builtin modules are always found first), 123 # so we'll simply skip it then. Bug #765456. 124 # 125 if "zlib" in sys.builtin_module_names: 126 return 127 if "zlib" in sys.modules: 128 del sys.modules["zlib"] 129 files = {"zlib.py": (NOW, test_src)} 130 try: 131 self.doTest(".py", files, "zlib") 132 except ImportError: 133 if self.compression != ZIP_DEFLATED: 134 self.fail("expected test to not raise ImportError") 135 else: 136 if self.compression != ZIP_STORED: 137 self.fail("expected test to raise ImportError") 138 139 def testPy(self): 140 files = {TESTMOD + ".py": (NOW, test_src)} 141 self.doTest(".py", files, TESTMOD) 142 143 def testPyc(self): 144 files = {TESTMOD + pyc_ext: (NOW, test_pyc)} 145 self.doTest(pyc_ext, files, TESTMOD) 146 147 def testBoth(self): 148 files = {TESTMOD + ".py": (NOW, test_src), 149 TESTMOD + pyc_ext: (NOW, test_pyc)} 150 self.doTest(pyc_ext, files, TESTMOD) 151 152 def testEmptyPy(self): 153 files = {TESTMOD + ".py": (NOW, "")} 154 self.doTest(None, files, TESTMOD) 155 156 def testBadMagic(self): 157 # make pyc magic word invalid, forcing loading from .py 158 m0 = ord(test_pyc[0]) 159 m0 ^= 0x04 # flip an arbitrary bit 160 badmagic_pyc = chr(m0) + test_pyc[1:] 161 files = {TESTMOD + ".py": (NOW, test_src), 162 TESTMOD + pyc_ext: (NOW, badmagic_pyc)} 163 self.doTest(".py", files, TESTMOD) 164 165 def testBadMagic2(self): 166 # make pyc magic word invalid, causing an ImportError 167 m0 = ord(test_pyc[0]) 168 m0 ^= 0x04 # flip an arbitrary bit 169 badmagic_pyc = chr(m0) + test_pyc[1:] 170 files = {TESTMOD + pyc_ext: (NOW, badmagic_pyc)} 171 try: 172 self.doTest(".py", files, TESTMOD) 173 except ImportError: 174 pass 175 else: 176 self.fail("expected ImportError; import from bad pyc") 177 178 def testBadMTime(self): 179 t3 = ord(test_pyc[7]) 180 t3 ^= 0x02 # flip the second bit -- not the first as that one 181 # isn't stored in the .py's mtime in the zip archive. 182 badtime_pyc = test_pyc[:7] + chr(t3) + test_pyc[8:] 183 files = {TESTMOD + ".py": (NOW, test_src), 184 TESTMOD + pyc_ext: (NOW, badtime_pyc)} 185 self.doTest(".py", files, TESTMOD) 186 187 def testPackage(self): 188 packdir = TESTPACK + os.sep 189 files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc), 190 packdir + TESTMOD + pyc_ext: (NOW, test_pyc)} 191 self.doTest(pyc_ext, files, TESTPACK, TESTMOD) 192 193 def testDeepPackage(self): 194 packdir = TESTPACK + os.sep 195 packdir2 = packdir + TESTPACK2 + os.sep 196 files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc), 197 packdir2 + "__init__" + pyc_ext: (NOW, test_pyc), 198 packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)} 199 self.doTest(pyc_ext, files, TESTPACK, TESTPACK2, TESTMOD) 200 201 def testZipImporterMethods(self): 202 packdir = TESTPACK + os.sep 203 packdir2 = packdir + TESTPACK2 + os.sep 204 files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc), 205 packdir2 + "__init__" + pyc_ext: (NOW, test_pyc), 206 packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)} 207 208 z = ZipFile(TEMP_ZIP, "w") 209 try: 210 for name, (mtime, data) in files.items(): 211 zinfo = ZipInfo(name, time.localtime(mtime)) 212 zinfo.compress_type = self.compression 213 z.writestr(zinfo, data) 214 z.close() 215 216 zi = zipimport.zipimporter(TEMP_ZIP) 217 self.assertEqual(zi.archive, TEMP_ZIP) 218 self.assertEqual(zi.is_package(TESTPACK), True) 219 mod = zi.load_module(TESTPACK) 220 self.assertEqual(zi.get_filename(TESTPACK), mod.__file__) 221 222 self.assertEqual(zi.is_package(packdir + '__init__'), False) 223 self.assertEqual(zi.is_package(packdir + TESTPACK2), True) 224 self.assertEqual(zi.is_package(packdir2 + TESTMOD), False) 225 226 mod_path = packdir2 + TESTMOD 227 mod_name = module_path_to_dotted_name(mod_path) 228 __import__(mod_name) 229 mod = sys.modules[mod_name] 230 self.assertEqual(zi.get_source(TESTPACK), None) 231 self.assertEqual(zi.get_source(mod_path), None) 232 self.assertEqual(zi.get_filename(mod_path), mod.__file__) 233 # To pass in the module name instead of the path, we must use the right importer 234 loader = mod.__loader__ 235 self.assertEqual(loader.get_source(mod_name), None) 236 self.assertEqual(loader.get_filename(mod_name), mod.__file__) 237 238 # test prefix and archivepath members 239 zi2 = zipimport.zipimporter(TEMP_ZIP + os.sep + TESTPACK) 240 self.assertEqual(zi2.archive, TEMP_ZIP) 241 self.assertEqual(zi2.prefix, TESTPACK + os.sep) 242 finally: 243 z.close() 244 os.remove(TEMP_ZIP) 245 246 def testZipImporterMethodsInSubDirectory(self): 247 packdir = TESTPACK + os.sep 248 packdir2 = packdir + TESTPACK2 + os.sep 249 files = {packdir2 + "__init__" + pyc_ext: (NOW, test_pyc), 250 packdir2 + TESTMOD + pyc_ext: (NOW, test_pyc)} 251 252 z = ZipFile(TEMP_ZIP, "w") 253 try: 254 for name, (mtime, data) in files.items(): 255 zinfo = ZipInfo(name, time.localtime(mtime)) 256 zinfo.compress_type = self.compression 257 z.writestr(zinfo, data) 258 z.close() 259 260 zi = zipimport.zipimporter(TEMP_ZIP + os.sep + packdir) 261 self.assertEqual(zi.archive, TEMP_ZIP) 262 self.assertEqual(zi.prefix, packdir) 263 self.assertEqual(zi.is_package(TESTPACK2), True) 264 mod = zi.load_module(TESTPACK2) 265 self.assertEqual(zi.get_filename(TESTPACK2), mod.__file__) 266 267 self.assertEqual(zi.is_package(TESTPACK2 + os.sep + '__init__'), False) 268 self.assertEqual(zi.is_package(TESTPACK2 + os.sep + TESTMOD), False) 269 270 mod_path = TESTPACK2 + os.sep + TESTMOD 271 mod_name = module_path_to_dotted_name(mod_path) 272 __import__(mod_name) 273 mod = sys.modules[mod_name] 274 self.assertEqual(zi.get_source(TESTPACK2), None) 275 self.assertEqual(zi.get_source(mod_path), None) 276 self.assertEqual(zi.get_filename(mod_path), mod.__file__) 277 # To pass in the module name instead of the path, we must use the right importer 278 loader = mod.__loader__ 279 self.assertEqual(loader.get_source(mod_name), None) 280 self.assertEqual(loader.get_filename(mod_name), mod.__file__) 281 finally: 282 z.close() 283 os.remove(TEMP_ZIP) 284 285 def testGetData(self): 286 z = ZipFile(TEMP_ZIP, "w") 287 z.compression = self.compression 288 try: 289 name = "testdata.dat" 290 data = "".join([chr(x) for x in range(256)]) * 500 291 z.writestr(name, data) 292 z.close() 293 zi = zipimport.zipimporter(TEMP_ZIP) 294 self.assertEqual(data, zi.get_data(name)) 295 self.assertIn('zipimporter object', repr(zi)) 296 finally: 297 z.close() 298 os.remove(TEMP_ZIP) 299 300 def testImporterAttr(self): 301 src = """if 1: # indent hack 302 def get_file(): 303 return __file__ 304 if __loader__.get_data("some.data") != "some data": 305 raise AssertionError, "bad data"\n""" 306 pyc = make_pyc(compile(src, "<???>", "exec"), NOW) 307 files = {TESTMOD + pyc_ext: (NOW, pyc), 308 "some.data": (NOW, "some data")} 309 self.doTest(pyc_ext, files, TESTMOD) 310 311 def testImport_WithStuff(self): 312 # try importing from a zipfile which contains additional 313 # stuff at the beginning of the file 314 files = {TESTMOD + ".py": (NOW, test_src)} 315 self.doTest(".py", files, TESTMOD, 316 stuff="Some Stuff"*31) 317 318 def assertModuleSource(self, module): 319 self.assertEqual(inspect.getsource(module), test_src) 320 321 def testGetSource(self): 322 files = {TESTMOD + ".py": (NOW, test_src)} 323 self.doTest(".py", files, TESTMOD, call=self.assertModuleSource) 324 325 def testGetCompiledSource(self): 326 pyc = make_pyc(compile(test_src, "<???>", "exec"), NOW) 327 files = {TESTMOD + ".py": (NOW, test_src), 328 TESTMOD + pyc_ext: (NOW, pyc)} 329 self.doTest(pyc_ext, files, TESTMOD, call=self.assertModuleSource) 330 331 def runDoctest(self, callback): 332 files = {TESTMOD + ".py": (NOW, test_src), 333 "xyz.txt": (NOW, ">>> log.append(True)\n")} 334 self.doTest(".py", files, TESTMOD, call=callback) 335 336 def doDoctestFile(self, module): 337 log = [] 338 old_master, doctest.master = doctest.master, None 339 try: 340 doctest.testfile( 341 'xyz.txt', package=module, module_relative=True, 342 globs=locals() 343 ) 344 finally: 345 doctest.master = old_master 346 self.assertEqual(log,[True]) 347 348 def testDoctestFile(self): 349 self.runDoctest(self.doDoctestFile) 350 351 def doDoctestSuite(self, module): 352 log = [] 353 doctest.DocFileTest( 354 'xyz.txt', package=module, module_relative=True, 355 globs=locals() 356 ).run() 357 self.assertEqual(log,[True]) 358 359 def testDoctestSuite(self): 360 self.runDoctest(self.doDoctestSuite) 361 362 def doTraceback(self, module): 363 try: 364 module.do_raise() 365 except: 366 tb = sys.exc_info()[2].tb_next 367 368 f,lno,n,line = extract_tb(tb, 1)[0] 369 self.assertEqual(line, raise_src.strip()) 370 371 f,lno,n,line = extract_stack(tb.tb_frame, 1)[0] 372 self.assertEqual(line, raise_src.strip()) 373 374 s = StringIO.StringIO() 375 print_tb(tb, 1, s) 376 self.assertTrue(s.getvalue().endswith(raise_src)) 377 else: 378 raise AssertionError("This ought to be impossible") 379 380 def testTraceback(self): 381 files = {TESTMOD + ".py": (NOW, raise_src)} 382 self.doTest(None, files, TESTMOD, call=self.doTraceback) 383 384 385 @unittest.skipUnless(zlib, "requires zlib") 386 class CompressedZipImportTestCase(UncompressedZipImportTestCase): 387 compression = ZIP_DEFLATED 388 389 390 class BadFileZipImportTestCase(unittest.TestCase): 391 def assertZipFailure(self, filename): 392 self.assertRaises(zipimport.ZipImportError, 393 zipimport.zipimporter, filename) 394 395 def testNoFile(self): 396 self.assertZipFailure('AdfjdkFJKDFJjdklfjs') 397 398 def testEmptyFilename(self): 399 self.assertZipFailure('') 400 401 def testBadArgs(self): 402 self.assertRaises(TypeError, zipimport.zipimporter, None) 403 self.assertRaises(TypeError, zipimport.zipimporter, TESTMOD, kwd=None) 404 405 def testFilenameTooLong(self): 406 self.assertZipFailure('A' * 33000) 407 408 def testEmptyFile(self): 409 test_support.unlink(TESTMOD) 410 open(TESTMOD, 'w+').close() 411 self.assertZipFailure(TESTMOD) 412 413 def testFileUnreadable(self): 414 test_support.unlink(TESTMOD) 415 fd = os.open(TESTMOD, os.O_CREAT, 000) 416 try: 417 os.close(fd) 418 self.assertZipFailure(TESTMOD) 419 finally: 420 # If we leave "the read-only bit" set on Windows, nothing can 421 # delete TESTMOD, and later tests suffer bogus failures. 422 os.chmod(TESTMOD, 0666) 423 test_support.unlink(TESTMOD) 424 425 def testNotZipFile(self): 426 test_support.unlink(TESTMOD) 427 fp = open(TESTMOD, 'w+') 428 fp.write('a' * 22) 429 fp.close() 430 self.assertZipFailure(TESTMOD) 431 432 # XXX: disabled until this works on Big-endian machines 433 def _testBogusZipFile(self): 434 test_support.unlink(TESTMOD) 435 fp = open(TESTMOD, 'w+') 436 fp.write(struct.pack('=I', 0x06054B50)) 437 fp.write('a' * 18) 438 fp.close() 439 z = zipimport.zipimporter(TESTMOD) 440 441 try: 442 self.assertRaises(TypeError, z.find_module, None) 443 self.assertRaises(TypeError, z.load_module, None) 444 self.assertRaises(TypeError, z.is_package, None) 445 self.assertRaises(TypeError, z.get_code, None) 446 self.assertRaises(TypeError, z.get_data, None) 447 self.assertRaises(TypeError, z.get_source, None) 448 449 error = zipimport.ZipImportError 450 self.assertEqual(z.find_module('abc'), None) 451 452 self.assertRaises(error, z.load_module, 'abc') 453 self.assertRaises(error, z.get_code, 'abc') 454 self.assertRaises(IOError, z.get_data, 'abc') 455 self.assertRaises(error, z.get_source, 'abc') 456 self.assertRaises(error, z.is_package, 'abc') 457 finally: 458 zipimport._zip_directory_cache.clear() 459 460 461 def test_main(): 462 try: 463 test_support.run_unittest( 464 UncompressedZipImportTestCase, 465 CompressedZipImportTestCase, 466 BadFileZipImportTestCase, 467 ) 468 finally: 469 test_support.unlink(TESTMOD) 470 471 if __name__ == "__main__": 472 test_main() 473
