| #!/usr/bin/env python |
| # -*- coding: iso-8859-1 -*- |
| |
| from test import test_support |
| import marshal |
| import sys |
| import unittest |
| import os |
| |
| class IntTestCase(unittest.TestCase): |
| def test_ints(self): |
| # Test the full range of Python ints. |
| n = sys.maxint |
| while n: |
| for expected in (-n, n): |
| s = marshal.dumps(expected) |
| got = marshal.loads(s) |
| self.assertEqual(expected, got) |
| marshal.dump(expected, file(test_support.TESTFN, "wb")) |
| got = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(expected, got) |
| n = n >> 1 |
| os.unlink(test_support.TESTFN) |
| |
| def test_int64(self): |
| # Simulate int marshaling on a 64-bit box. This is most interesting if |
| # we're running the test on a 32-bit box, of course. |
| |
| def to_little_endian_string(value, nbytes): |
| bytes = [] |
| for i in range(nbytes): |
| bytes.append(chr(value & 0xff)) |
| value >>= 8 |
| return ''.join(bytes) |
| |
| maxint64 = (1L << 63) - 1 |
| minint64 = -maxint64-1 |
| |
| for base in maxint64, minint64, -maxint64, -(minint64 >> 1): |
| while base: |
| s = 'I' + to_little_endian_string(base, 8) |
| got = marshal.loads(s) |
| self.assertEqual(base, got) |
| if base == -1: # a fixed-point for shifting right 1 |
| base = 0 |
| else: |
| base >>= 1 |
| |
| def test_bool(self): |
| for b in (True, False): |
| new = marshal.loads(marshal.dumps(b)) |
| self.assertEqual(b, new) |
| self.assertEqual(type(b), type(new)) |
| marshal.dump(b, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(b, new) |
| self.assertEqual(type(b), type(new)) |
| |
| class FloatTestCase(unittest.TestCase): |
| def test_floats(self): |
| # Test a few floats |
| small = 1e-25 |
| n = sys.maxint * 3.7e250 |
| while n > small: |
| for expected in (-n, n): |
| f = float(expected) |
| s = marshal.dumps(f) |
| got = marshal.loads(s) |
| self.assertEqual(f, got) |
| marshal.dump(f, file(test_support.TESTFN, "wb")) |
| got = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(f, got) |
| n /= 123.4567 |
| |
| f = 0.0 |
| s = marshal.dumps(f, 2) |
| got = marshal.loads(s) |
| self.assertEqual(f, got) |
| # and with version <= 1 (floats marshalled differently then) |
| s = marshal.dumps(f, 1) |
| got = marshal.loads(s) |
| self.assertEqual(f, got) |
| |
| n = sys.maxint * 3.7e-250 |
| while n < small: |
| for expected in (-n, n): |
| f = float(expected) |
| |
| s = marshal.dumps(f) |
| got = marshal.loads(s) |
| self.assertEqual(f, got) |
| |
| s = marshal.dumps(f, 1) |
| got = marshal.loads(s) |
| self.assertEqual(f, got) |
| |
| marshal.dump(f, file(test_support.TESTFN, "wb")) |
| got = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(f, got) |
| |
| marshal.dump(f, file(test_support.TESTFN, "wb"), 1) |
| got = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(f, got) |
| n *= 123.4567 |
| os.unlink(test_support.TESTFN) |
| |
| class StringTestCase(unittest.TestCase): |
| def test_unicode(self): |
| for s in [u"", u"Andrè Previn", u"abc", u" "*10000]: |
| new = marshal.loads(marshal.dumps(s)) |
| self.assertEqual(s, new) |
| self.assertEqual(type(s), type(new)) |
| marshal.dump(s, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(s, new) |
| self.assertEqual(type(s), type(new)) |
| os.unlink(test_support.TESTFN) |
| |
| def test_string(self): |
| for s in ["", "Andrè Previn", "abc", " "*10000]: |
| new = marshal.loads(marshal.dumps(s)) |
| self.assertEqual(s, new) |
| self.assertEqual(type(s), type(new)) |
| marshal.dump(s, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(s, new) |
| self.assertEqual(type(s), type(new)) |
| os.unlink(test_support.TESTFN) |
| |
| def test_buffer(self): |
| for s in ["", "Andrè Previn", "abc", " "*10000]: |
| with test_support.check_py3k_warnings(("buffer.. not supported", |
| DeprecationWarning)): |
| b = buffer(s) |
| new = marshal.loads(marshal.dumps(b)) |
| self.assertEqual(s, new) |
| marshal.dump(b, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(s, new) |
| os.unlink(test_support.TESTFN) |
| |
| class ExceptionTestCase(unittest.TestCase): |
| def test_exceptions(self): |
| new = marshal.loads(marshal.dumps(StopIteration)) |
| self.assertEqual(StopIteration, new) |
| |
| class CodeTestCase(unittest.TestCase): |
| def test_code(self): |
| co = ExceptionTestCase.test_exceptions.func_code |
| new = marshal.loads(marshal.dumps(co)) |
| self.assertEqual(co, new) |
| |
| class ContainerTestCase(unittest.TestCase): |
| d = {'astring': '[email protected]', |
| 'afloat': 7283.43, |
| 'anint': 2**20, |
| 'ashortlong': 2L, |
| 'alist': ['.zyx.41'], |
| 'atuple': ('.zyx.41',)*10, |
| 'aboolean': False, |
| 'aunicode': u"Andrè Previn" |
| } |
| def test_dict(self): |
| new = marshal.loads(marshal.dumps(self.d)) |
| self.assertEqual(self.d, new) |
| marshal.dump(self.d, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(self.d, new) |
| os.unlink(test_support.TESTFN) |
| |
| def test_list(self): |
| lst = self.d.items() |
| new = marshal.loads(marshal.dumps(lst)) |
| self.assertEqual(lst, new) |
| marshal.dump(lst, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(lst, new) |
| os.unlink(test_support.TESTFN) |
| |
| def test_tuple(self): |
| t = tuple(self.d.keys()) |
| new = marshal.loads(marshal.dumps(t)) |
| self.assertEqual(t, new) |
| marshal.dump(t, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(t, new) |
| os.unlink(test_support.TESTFN) |
| |
| def test_sets(self): |
| for constructor in (set, frozenset): |
| t = constructor(self.d.keys()) |
| new = marshal.loads(marshal.dumps(t)) |
| self.assertEqual(t, new) |
| self.assertTrue(isinstance(new, constructor)) |
| self.assertNotEqual(id(t), id(new)) |
| marshal.dump(t, file(test_support.TESTFN, "wb")) |
| new = marshal.load(file(test_support.TESTFN, "rb")) |
| self.assertEqual(t, new) |
| os.unlink(test_support.TESTFN) |
| |
| class BugsTestCase(unittest.TestCase): |
| def test_bug_5888452(self): |
| # Simple-minded check for SF 588452: Debug build crashes |
| marshal.dumps([128] * 1000) |
| |
| def test_patch_873224(self): |
| self.assertRaises(Exception, marshal.loads, '0') |
| self.assertRaises(Exception, marshal.loads, 'f') |
| self.assertRaises(Exception, marshal.loads, marshal.dumps(5L)[:-1]) |
| |
| def test_version_argument(self): |
| # Python 2.4.0 crashes for any call to marshal.dumps(x, y) |
| self.assertEqual(marshal.loads(marshal.dumps(5, 0)), 5) |
| self.assertEqual(marshal.loads(marshal.dumps(5, 1)), 5) |
| |
| def test_fuzz(self): |
| # simple test that it's at least not *totally* trivial to |
| # crash from bad marshal data |
| for c in [chr(i) for i in range(256)]: |
| try: |
| marshal.loads(c) |
| except Exception: |
| pass |
| |
| def test_loads_recursion(self): |
| s = 'c' + ('X' * 4*4) + '{' * 2**20 |
| self.assertRaises(ValueError, marshal.loads, s) |
| |
| def test_recursion_limit(self): |
| # Create a deeply nested structure. |
| head = last = [] |
| # The max stack depth should match the value in Python/marshal.c. |
| MAX_MARSHAL_STACK_DEPTH = 2000 |
| for i in range(MAX_MARSHAL_STACK_DEPTH - 2): |
| last.append([0]) |
| last = last[-1] |
| |
| # Verify we don't blow out the stack with dumps/load. |
| data = marshal.dumps(head) |
| new_head = marshal.loads(data) |
| # Don't use == to compare objects, it can exceed the recursion limit. |
| self.assertEqual(len(new_head), len(head)) |
| self.assertEqual(len(new_head[0]), len(head[0])) |
| self.assertEqual(len(new_head[-1]), len(head[-1])) |
| |
| last.append([0]) |
| self.assertRaises(ValueError, marshal.dumps, head) |
| |
| def test_exact_type_match(self): |
| # Former bug: |
| # >>> class Int(int): pass |
| # >>> type(loads(dumps(Int()))) |
| # <type 'int'> |
| for typ in (int, long, float, complex, tuple, list, dict, set, frozenset): |
| # Note: str and unicode subclasses are not tested because they get handled |
| # by marshal's routines for objects supporting the buffer API. |
| subtyp = type('subtyp', (typ,), {}) |
| self.assertRaises(ValueError, marshal.dumps, subtyp()) |
| |
| # Issue #1792 introduced a change in how marshal increases the size of its |
| # internal buffer; this test ensures that the new code is exercised. |
| def test_large_marshal(self): |
| size = int(1e6) |
| testString = 'abc' * size |
| marshal.dumps(testString) |
| |
| def test_invalid_longs(self): |
| # Issue #7019: marshal.loads shouldn't produce unnormalized PyLongs |
| invalid_string = 'l\x02\x00\x00\x00\x00\x00\x00\x00' |
| self.assertRaises(ValueError, marshal.loads, invalid_string) |
| |
| LARGE_SIZE = 2**31 |
| character_size = 4 if sys.maxunicode > 0xFFFF else 2 |
| pointer_size = 8 if sys.maxsize > 0xFFFFFFFF else 4 |
| |
| @unittest.skipIf(LARGE_SIZE > sys.maxsize, "test cannot run on 32-bit systems") |
| class LargeValuesTestCase(unittest.TestCase): |
| def check_unmarshallable(self, data): |
| f = open(test_support.TESTFN, 'wb') |
| self.addCleanup(test_support.unlink, test_support.TESTFN) |
| with f: |
| self.assertRaises(ValueError, marshal.dump, data, f) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, memuse=1, dry_run=False) |
| def test_string(self, size): |
| self.check_unmarshallable('x' * size) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, |
| memuse=character_size, dry_run=False) |
| def test_unicode(self, size): |
| self.check_unmarshallable(u'x' * size) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, |
| memuse=pointer_size, dry_run=False) |
| def test_tuple(self, size): |
| self.check_unmarshallable((None,) * size) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, |
| memuse=pointer_size, dry_run=False) |
| def test_list(self, size): |
| self.check_unmarshallable([None] * size) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, |
| memuse=pointer_size*12 + sys.getsizeof(LARGE_SIZE-1), |
| dry_run=False) |
| def test_set(self, size): |
| self.check_unmarshallable(set(range(size))) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, |
| memuse=pointer_size*12 + sys.getsizeof(LARGE_SIZE-1), |
| dry_run=False) |
| def test_frozenset(self, size): |
| self.check_unmarshallable(frozenset(range(size))) |
| |
| @test_support.precisionbigmemtest(size=LARGE_SIZE, memuse=1, dry_run=False) |
| def test_bytearray(self, size): |
| self.check_unmarshallable(bytearray(size)) |
| |
| |
| def test_main(): |
| test_support.run_unittest(IntTestCase, |
| FloatTestCase, |
| StringTestCase, |
| CodeTestCase, |
| ContainerTestCase, |
| ExceptionTestCase, |
| BugsTestCase, |
| LargeValuesTestCase, |
| ) |
| |
| if __name__ == "__main__": |
| test_main() |
