| import unittest |
| import pickle |
| import cPickle |
| import pickletools |
| import copy_reg |
| |
| from test.test_support import TestFailed, have_unicode, TESTFN, \ |
| run_with_locale |
| |
| # Tests that try a number of pickle protocols should have a |
| # for proto in protocols: |
| # kind of outer loop. |
| assert pickle.HIGHEST_PROTOCOL == cPickle.HIGHEST_PROTOCOL == 2 |
| protocols = range(pickle.HIGHEST_PROTOCOL + 1) |
| |
| |
| # Return True if opcode code appears in the pickle, else False. |
| def opcode_in_pickle(code, pickle): |
| for op, dummy, dummy in pickletools.genops(pickle): |
| if op.code == code: |
| return True |
| return False |
| |
| # Return the number of times opcode code appears in pickle. |
| def count_opcode(code, pickle): |
| n = 0 |
| for op, dummy, dummy in pickletools.genops(pickle): |
| if op.code == code: |
| n += 1 |
| return n |
| |
| # We can't very well test the extension registry without putting known stuff |
| # in it, but we have to be careful to restore its original state. Code |
| # should do this: |
| # |
| # e = ExtensionSaver(extension_code) |
| # try: |
| # fiddle w/ the extension registry's stuff for extension_code |
| # finally: |
| # e.restore() |
| |
| class ExtensionSaver: |
| # Remember current registration for code (if any), and remove it (if |
| # there is one). |
| def __init__(self, code): |
| self.code = code |
| if code in copy_reg._inverted_registry: |
| self.pair = copy_reg._inverted_registry[code] |
| copy_reg.remove_extension(self.pair[0], self.pair[1], code) |
| else: |
| self.pair = None |
| |
| # Restore previous registration for code. |
| def restore(self): |
| code = self.code |
| curpair = copy_reg._inverted_registry.get(code) |
| if curpair is not None: |
| copy_reg.remove_extension(curpair[0], curpair[1], code) |
| pair = self.pair |
| if pair is not None: |
| copy_reg.add_extension(pair[0], pair[1], code) |
| |
| class C: |
| def __cmp__(self, other): |
| return cmp(self.__dict__, other.__dict__) |
| |
| import __main__ |
| __main__.C = C |
| C.__module__ = "__main__" |
| |
| class myint(int): |
| def __init__(self, x): |
| self.str = str(x) |
| |
| class initarg(C): |
| |
| def __init__(self, a, b): |
| self.a = a |
| self.b = b |
| |
| def __getinitargs__(self): |
| return self.a, self.b |
| |
| class metaclass(type): |
| pass |
| |
| class use_metaclass(object): |
| __metaclass__ = metaclass |
| |
| # DATA0 .. DATA2 are the pickles we expect under the various protocols, for |
| # the object returned by create_data(). |
| |
| # break into multiple strings to avoid confusing font-lock-mode |
| DATA0 = """(lp1 |
| I0 |
| aL1L |
| aF2 |
| ac__builtin__ |
| complex |
| p2 |
| """ + \ |
| """(F3 |
| F0 |
| tRp3 |
| aI1 |
| aI-1 |
| aI255 |
| aI-255 |
| aI-256 |
| aI65535 |
| aI-65535 |
| aI-65536 |
| aI2147483647 |
| aI-2147483647 |
| aI-2147483648 |
| a""" + \ |
| """(S'abc' |
| p4 |
| g4 |
| """ + \ |
| """(i__main__ |
| C |
| p5 |
| """ + \ |
| """(dp6 |
| S'foo' |
| p7 |
| I1 |
| sS'bar' |
| p8 |
| I2 |
| sbg5 |
| tp9 |
| ag9 |
| aI5 |
| a. |
| """ |
| |
| # Disassembly of DATA0. |
| DATA0_DIS = """\ |
| 0: ( MARK |
| 1: l LIST (MARK at 0) |
| 2: p PUT 1 |
| 5: I INT 0 |
| 8: a APPEND |
| 9: L LONG 1L |
| 13: a APPEND |
| 14: F FLOAT 2.0 |
| 17: a APPEND |
| 18: c GLOBAL '__builtin__ complex' |
| 39: p PUT 2 |
| 42: ( MARK |
| 43: F FLOAT 3.0 |
| 46: F FLOAT 0.0 |
| 49: t TUPLE (MARK at 42) |
| 50: R REDUCE |
| 51: p PUT 3 |
| 54: a APPEND |
| 55: I INT 1 |
| 58: a APPEND |
| 59: I INT -1 |
| 63: a APPEND |
| 64: I INT 255 |
| 69: a APPEND |
| 70: I INT -255 |
| 76: a APPEND |
| 77: I INT -256 |
| 83: a APPEND |
| 84: I INT 65535 |
| 91: a APPEND |
| 92: I INT -65535 |
| 100: a APPEND |
| 101: I INT -65536 |
| 109: a APPEND |
| 110: I INT 2147483647 |
| 122: a APPEND |
| 123: I INT -2147483647 |
| 136: a APPEND |
| 137: I INT -2147483648 |
| 150: a APPEND |
| 151: ( MARK |
| 152: S STRING 'abc' |
| 159: p PUT 4 |
| 162: g GET 4 |
| 165: ( MARK |
| 166: i INST '__main__ C' (MARK at 165) |
| 178: p PUT 5 |
| 181: ( MARK |
| 182: d DICT (MARK at 181) |
| 183: p PUT 6 |
| 186: S STRING 'foo' |
| 193: p PUT 7 |
| 196: I INT 1 |
| 199: s SETITEM |
| 200: S STRING 'bar' |
| 207: p PUT 8 |
| 210: I INT 2 |
| 213: s SETITEM |
| 214: b BUILD |
| 215: g GET 5 |
| 218: t TUPLE (MARK at 151) |
| 219: p PUT 9 |
| 222: a APPEND |
| 223: g GET 9 |
| 226: a APPEND |
| 227: I INT 5 |
| 230: a APPEND |
| 231: . STOP |
| highest protocol among opcodes = 0 |
| """ |
| |
| DATA1 = (']q\x01(K\x00L1L\nG@\x00\x00\x00\x00\x00\x00\x00' |
| 'c__builtin__\ncomplex\nq\x02(G@\x08\x00\x00\x00\x00\x00' |
| '\x00G\x00\x00\x00\x00\x00\x00\x00\x00tRq\x03K\x01J\xff\xff' |
| '\xff\xffK\xffJ\x01\xff\xff\xffJ\x00\xff\xff\xffM\xff\xff' |
| 'J\x01\x00\xff\xffJ\x00\x00\xff\xffJ\xff\xff\xff\x7fJ\x01\x00' |
| '\x00\x80J\x00\x00\x00\x80(U\x03abcq\x04h\x04(c__main__\n' |
| 'C\nq\x05oq\x06}q\x07(U\x03fooq\x08K\x01U\x03barq\tK\x02ubh' |
| '\x06tq\nh\nK\x05e.' |
| ) |
| |
| # Disassembly of DATA1. |
| DATA1_DIS = """\ |
| 0: ] EMPTY_LIST |
| 1: q BINPUT 1 |
| 3: ( MARK |
| 4: K BININT1 0 |
| 6: L LONG 1L |
| 10: G BINFLOAT 2.0 |
| 19: c GLOBAL '__builtin__ complex' |
| 40: q BINPUT 2 |
| 42: ( MARK |
| 43: G BINFLOAT 3.0 |
| 52: G BINFLOAT 0.0 |
| 61: t TUPLE (MARK at 42) |
| 62: R REDUCE |
| 63: q BINPUT 3 |
| 65: K BININT1 1 |
| 67: J BININT -1 |
| 72: K BININT1 255 |
| 74: J BININT -255 |
| 79: J BININT -256 |
| 84: M BININT2 65535 |
| 87: J BININT -65535 |
| 92: J BININT -65536 |
| 97: J BININT 2147483647 |
| 102: J BININT -2147483647 |
| 107: J BININT -2147483648 |
| 112: ( MARK |
| 113: U SHORT_BINSTRING 'abc' |
| 118: q BINPUT 4 |
| 120: h BINGET 4 |
| 122: ( MARK |
| 123: c GLOBAL '__main__ C' |
| 135: q BINPUT 5 |
| 137: o OBJ (MARK at 122) |
| 138: q BINPUT 6 |
| 140: } EMPTY_DICT |
| 141: q BINPUT 7 |
| 143: ( MARK |
| 144: U SHORT_BINSTRING 'foo' |
| 149: q BINPUT 8 |
| 151: K BININT1 1 |
| 153: U SHORT_BINSTRING 'bar' |
| 158: q BINPUT 9 |
| 160: K BININT1 2 |
| 162: u SETITEMS (MARK at 143) |
| 163: b BUILD |
| 164: h BINGET 6 |
| 166: t TUPLE (MARK at 112) |
| 167: q BINPUT 10 |
| 169: h BINGET 10 |
| 171: K BININT1 5 |
| 173: e APPENDS (MARK at 3) |
| 174: . STOP |
| highest protocol among opcodes = 1 |
| """ |
| |
| DATA2 = ('\x80\x02]q\x01(K\x00\x8a\x01\x01G@\x00\x00\x00\x00\x00\x00\x00' |
| 'c__builtin__\ncomplex\nq\x02G@\x08\x00\x00\x00\x00\x00\x00G\x00' |
| '\x00\x00\x00\x00\x00\x00\x00\x86Rq\x03K\x01J\xff\xff\xff\xffK' |
| '\xffJ\x01\xff\xff\xffJ\x00\xff\xff\xffM\xff\xffJ\x01\x00\xff\xff' |
| 'J\x00\x00\xff\xffJ\xff\xff\xff\x7fJ\x01\x00\x00\x80J\x00\x00\x00' |
| '\x80(U\x03abcq\x04h\x04(c__main__\nC\nq\x05oq\x06}q\x07(U\x03foo' |
| 'q\x08K\x01U\x03barq\tK\x02ubh\x06tq\nh\nK\x05e.') |
| |
| # Disassembly of DATA2. |
| DATA2_DIS = """\ |
| 0: \x80 PROTO 2 |
| 2: ] EMPTY_LIST |
| 3: q BINPUT 1 |
| 5: ( MARK |
| 6: K BININT1 0 |
| 8: \x8a LONG1 1L |
| 11: G BINFLOAT 2.0 |
| 20: c GLOBAL '__builtin__ complex' |
| 41: q BINPUT 2 |
| 43: G BINFLOAT 3.0 |
| 52: G BINFLOAT 0.0 |
| 61: \x86 TUPLE2 |
| 62: R REDUCE |
| 63: q BINPUT 3 |
| 65: K BININT1 1 |
| 67: J BININT -1 |
| 72: K BININT1 255 |
| 74: J BININT -255 |
| 79: J BININT -256 |
| 84: M BININT2 65535 |
| 87: J BININT -65535 |
| 92: J BININT -65536 |
| 97: J BININT 2147483647 |
| 102: J BININT -2147483647 |
| 107: J BININT -2147483648 |
| 112: ( MARK |
| 113: U SHORT_BINSTRING 'abc' |
| 118: q BINPUT 4 |
| 120: h BINGET 4 |
| 122: ( MARK |
| 123: c GLOBAL '__main__ C' |
| 135: q BINPUT 5 |
| 137: o OBJ (MARK at 122) |
| 138: q BINPUT 6 |
| 140: } EMPTY_DICT |
| 141: q BINPUT 7 |
| 143: ( MARK |
| 144: U SHORT_BINSTRING 'foo' |
| 149: q BINPUT 8 |
| 151: K BININT1 1 |
| 153: U SHORT_BINSTRING 'bar' |
| 158: q BINPUT 9 |
| 160: K BININT1 2 |
| 162: u SETITEMS (MARK at 143) |
| 163: b BUILD |
| 164: h BINGET 6 |
| 166: t TUPLE (MARK at 112) |
| 167: q BINPUT 10 |
| 169: h BINGET 10 |
| 171: K BININT1 5 |
| 173: e APPENDS (MARK at 5) |
| 174: . STOP |
| highest protocol among opcodes = 2 |
| """ |
| |
| def create_data(): |
| c = C() |
| c.foo = 1 |
| c.bar = 2 |
| x = [0, 1L, 2.0, 3.0+0j] |
| # Append some integer test cases at cPickle.c's internal size |
| # cutoffs. |
| uint1max = 0xff |
| uint2max = 0xffff |
| int4max = 0x7fffffff |
| x.extend([1, -1, |
| uint1max, -uint1max, -uint1max-1, |
| uint2max, -uint2max, -uint2max-1, |
| int4max, -int4max, -int4max-1]) |
| y = ('abc', 'abc', c, c) |
| x.append(y) |
| x.append(y) |
| x.append(5) |
| return x |
| |
| class AbstractPickleTests(unittest.TestCase): |
| # Subclass must define self.dumps, self.loads, self.error. |
| |
| _testdata = create_data() |
| |
| def setUp(self): |
| pass |
| |
| def test_misc(self): |
| # test various datatypes not tested by testdata |
| for proto in protocols: |
| x = myint(4) |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| |
| x = (1, ()) |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| |
| x = initarg(1, x) |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| |
| # XXX test __reduce__ protocol? |
| |
| def test_roundtrip_equality(self): |
| expected = self._testdata |
| for proto in protocols: |
| s = self.dumps(expected, proto) |
| got = self.loads(s) |
| self.assertEqual(expected, got) |
| |
| def test_load_from_canned_string(self): |
| expected = self._testdata |
| for canned in DATA0, DATA1, DATA2: |
| got = self.loads(canned) |
| self.assertEqual(expected, got) |
| |
| # There are gratuitous differences between pickles produced by |
| # pickle and cPickle, largely because cPickle starts PUT indices at |
| # 1 and pickle starts them at 0. See XXX comment in cPickle's put2() -- |
| # there's a comment with an exclamation point there whose meaning |
| # is a mystery. cPickle also suppresses PUT for objects with a refcount |
| # of 1. |
| def dont_test_disassembly(self): |
| from cStringIO import StringIO |
| from pickletools import dis |
| |
| for proto, expected in (0, DATA0_DIS), (1, DATA1_DIS): |
| s = self.dumps(self._testdata, proto) |
| filelike = StringIO() |
| dis(s, out=filelike) |
| got = filelike.getvalue() |
| self.assertEqual(expected, got) |
| |
| def test_recursive_list(self): |
| l = [] |
| l.append(l) |
| for proto in protocols: |
| s = self.dumps(l, proto) |
| x = self.loads(s) |
| self.assertEqual(len(x), 1) |
| self.assert_(x is x[0]) |
| |
| def test_recursive_dict(self): |
| d = {} |
| d[1] = d |
| for proto in protocols: |
| s = self.dumps(d, proto) |
| x = self.loads(s) |
| self.assertEqual(x.keys(), [1]) |
| self.assert_(x[1] is x) |
| |
| def test_recursive_inst(self): |
| i = C() |
| i.attr = i |
| for proto in protocols: |
| s = self.dumps(i, 2) |
| x = self.loads(s) |
| self.assertEqual(dir(x), dir(i)) |
| self.assert_(x.attr is x) |
| |
| def test_recursive_multi(self): |
| l = [] |
| d = {1:l} |
| i = C() |
| i.attr = d |
| l.append(i) |
| for proto in protocols: |
| s = self.dumps(l, proto) |
| x = self.loads(s) |
| self.assertEqual(len(x), 1) |
| self.assertEqual(dir(x[0]), dir(i)) |
| self.assertEqual(x[0].attr.keys(), [1]) |
| self.assert_(x[0].attr[1] is x) |
| |
| def test_garyp(self): |
| self.assertRaises(self.error, self.loads, 'garyp') |
| |
| def test_insecure_strings(self): |
| insecure = ["abc", "2 + 2", # not quoted |
| #"'abc' + 'def'", # not a single quoted string |
| "'abc", # quote is not closed |
| "'abc\"", # open quote and close quote don't match |
| "'abc' ?", # junk after close quote |
| "'\\'", # trailing backslash |
| # some tests of the quoting rules |
| #"'abc\"\''", |
| #"'\\\\a\'\'\'\\\'\\\\\''", |
| ] |
| for s in insecure: |
| buf = "S" + s + "\012p0\012." |
| self.assertRaises(ValueError, self.loads, buf) |
| |
| if have_unicode: |
| def test_unicode(self): |
| endcases = [unicode(''), unicode('<\\u>'), unicode('<\\\u1234>'), |
| unicode('<\n>'), unicode('<\\>')] |
| for proto in protocols: |
| for u in endcases: |
| p = self.dumps(u, proto) |
| u2 = self.loads(p) |
| self.assertEqual(u2, u) |
| |
| def test_ints(self): |
| import sys |
| for proto in protocols: |
| n = sys.maxint |
| while n: |
| for expected in (-n, n): |
| s = self.dumps(expected, proto) |
| n2 = self.loads(s) |
| self.assertEqual(expected, n2) |
| n = n >> 1 |
| |
| def test_maxint64(self): |
| maxint64 = (1L << 63) - 1 |
| data = 'I' + str(maxint64) + '\n.' |
| got = self.loads(data) |
| self.assertEqual(got, maxint64) |
| |
| # Try too with a bogus literal. |
| data = 'I' + str(maxint64) + 'JUNK\n.' |
| self.assertRaises(ValueError, self.loads, data) |
| |
| def test_long(self): |
| for proto in protocols: |
| # 256 bytes is where LONG4 begins. |
| for nbits in 1, 8, 8*254, 8*255, 8*256, 8*257: |
| nbase = 1L << nbits |
| for npos in nbase-1, nbase, nbase+1: |
| for n in npos, -npos: |
| pickle = self.dumps(n, proto) |
| got = self.loads(pickle) |
| self.assertEqual(n, got) |
| # Try a monster. This is quadratic-time in protos 0 & 1, so don't |
| # bother with those. |
| nbase = long("deadbeeffeedface", 16) |
| nbase += nbase << 1000000 |
| for n in nbase, -nbase: |
| p = self.dumps(n, 2) |
| got = self.loads(p) |
| self.assertEqual(n, got) |
| |
| @run_with_locale('LC_ALL', 'de_DE', 'fr_FR') |
| def test_float_format(self): |
| # make sure that floats are formatted locale independent |
| self.assertEqual(self.dumps(1.2)[0:3], 'F1.') |
| |
| def test_reduce(self): |
| pass |
| |
| def test_getinitargs(self): |
| pass |
| |
| def test_metaclass(self): |
| a = use_metaclass() |
| for proto in protocols: |
| s = self.dumps(a, proto) |
| b = self.loads(s) |
| self.assertEqual(a.__class__, b.__class__) |
| |
| def test_structseq(self): |
| import time |
| import os |
| |
| t = time.localtime() |
| for proto in protocols: |
| s = self.dumps(t, proto) |
| u = self.loads(s) |
| self.assertEqual(t, u) |
| if hasattr(os, "stat"): |
| t = os.stat(os.curdir) |
| s = self.dumps(t, proto) |
| u = self.loads(s) |
| self.assertEqual(t, u) |
| if hasattr(os, "statvfs"): |
| t = os.statvfs(os.curdir) |
| s = self.dumps(t, proto) |
| u = self.loads(s) |
| self.assertEqual(t, u) |
| |
| # Tests for protocol 2 |
| |
| def test_proto(self): |
| build_none = pickle.NONE + pickle.STOP |
| for proto in protocols: |
| expected = build_none |
| if proto >= 2: |
| expected = pickle.PROTO + chr(proto) + expected |
| p = self.dumps(None, proto) |
| self.assertEqual(p, expected) |
| |
| oob = protocols[-1] + 1 # a future protocol |
| badpickle = pickle.PROTO + chr(oob) + build_none |
| try: |
| self.loads(badpickle) |
| except ValueError, detail: |
| self.failUnless(str(detail).startswith( |
| "unsupported pickle protocol")) |
| else: |
| self.fail("expected bad protocol number to raise ValueError") |
| |
| def test_long1(self): |
| x = 12345678910111213141516178920L |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| self.assertEqual(opcode_in_pickle(pickle.LONG1, s), proto >= 2) |
| |
| def test_long4(self): |
| x = 12345678910111213141516178920L << (256*8) |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| self.assertEqual(opcode_in_pickle(pickle.LONG4, s), proto >= 2) |
| |
| def test_short_tuples(self): |
| # Map (proto, len(tuple)) to expected opcode. |
| expected_opcode = {(0, 0): pickle.TUPLE, |
| (0, 1): pickle.TUPLE, |
| (0, 2): pickle.TUPLE, |
| (0, 3): pickle.TUPLE, |
| (0, 4): pickle.TUPLE, |
| |
| (1, 0): pickle.EMPTY_TUPLE, |
| (1, 1): pickle.TUPLE, |
| (1, 2): pickle.TUPLE, |
| (1, 3): pickle.TUPLE, |
| (1, 4): pickle.TUPLE, |
| |
| (2, 0): pickle.EMPTY_TUPLE, |
| (2, 1): pickle.TUPLE1, |
| (2, 2): pickle.TUPLE2, |
| (2, 3): pickle.TUPLE3, |
| (2, 4): pickle.TUPLE, |
| } |
| a = () |
| b = (1,) |
| c = (1, 2) |
| d = (1, 2, 3) |
| e = (1, 2, 3, 4) |
| for proto in protocols: |
| for x in a, b, c, d, e: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y, (proto, x, s, y)) |
| expected = expected_opcode[proto, len(x)] |
| self.assertEqual(opcode_in_pickle(expected, s), True) |
| |
| def test_singletons(self): |
| # Map (proto, singleton) to expected opcode. |
| expected_opcode = {(0, None): pickle.NONE, |
| (1, None): pickle.NONE, |
| (2, None): pickle.NONE, |
| |
| (0, True): pickle.INT, |
| (1, True): pickle.INT, |
| (2, True): pickle.NEWTRUE, |
| |
| (0, False): pickle.INT, |
| (1, False): pickle.INT, |
| (2, False): pickle.NEWFALSE, |
| } |
| for proto in protocols: |
| for x in None, False, True: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assert_(x is y, (proto, x, s, y)) |
| expected = expected_opcode[proto, x] |
| self.assertEqual(opcode_in_pickle(expected, s), True) |
| |
| def test_newobj_tuple(self): |
| x = MyTuple([1, 2, 3]) |
| x.foo = 42 |
| x.bar = "hello" |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(tuple(x), tuple(y)) |
| self.assertEqual(x.__dict__, y.__dict__) |
| |
| def test_newobj_list(self): |
| x = MyList([1, 2, 3]) |
| x.foo = 42 |
| x.bar = "hello" |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(list(x), list(y)) |
| self.assertEqual(x.__dict__, y.__dict__) |
| |
| def test_newobj_generic(self): |
| for proto in protocols: |
| for C in myclasses: |
| B = C.__base__ |
| x = C(C.sample) |
| x.foo = 42 |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| detail = (proto, C, B, x, y, type(y)) |
| self.assertEqual(B(x), B(y), detail) |
| self.assertEqual(x.__dict__, y.__dict__, detail) |
| |
| # Register a type with copy_reg, with extension code extcode. Pickle |
| # an object of that type. Check that the resulting pickle uses opcode |
| # (EXT[124]) under proto 2, and not in proto 1. |
| |
| def produce_global_ext(self, extcode, opcode): |
| e = ExtensionSaver(extcode) |
| try: |
| copy_reg.add_extension(__name__, "MyList", extcode) |
| x = MyList([1, 2, 3]) |
| x.foo = 42 |
| x.bar = "hello" |
| |
| # Dump using protocol 1 for comparison. |
| s1 = self.dumps(x, 1) |
| self.assert_(__name__ in s1) |
| self.assert_("MyList" in s1) |
| self.assertEqual(opcode_in_pickle(opcode, s1), False) |
| |
| y = self.loads(s1) |
| self.assertEqual(list(x), list(y)) |
| self.assertEqual(x.__dict__, y.__dict__) |
| |
| # Dump using protocol 2 for test. |
| s2 = self.dumps(x, 2) |
| self.assert_(__name__ not in s2) |
| self.assert_("MyList" not in s2) |
| self.assertEqual(opcode_in_pickle(opcode, s2), True) |
| |
| y = self.loads(s2) |
| self.assertEqual(list(x), list(y)) |
| self.assertEqual(x.__dict__, y.__dict__) |
| |
| finally: |
| e.restore() |
| |
| def test_global_ext1(self): |
| self.produce_global_ext(0x00000001, pickle.EXT1) # smallest EXT1 code |
| self.produce_global_ext(0x000000ff, pickle.EXT1) # largest EXT1 code |
| |
| def test_global_ext2(self): |
| self.produce_global_ext(0x00000100, pickle.EXT2) # smallest EXT2 code |
| self.produce_global_ext(0x0000ffff, pickle.EXT2) # largest EXT2 code |
| self.produce_global_ext(0x0000abcd, pickle.EXT2) # check endianness |
| |
| def test_global_ext4(self): |
| self.produce_global_ext(0x00010000, pickle.EXT4) # smallest EXT4 code |
| self.produce_global_ext(0x7fffffff, pickle.EXT4) # largest EXT4 code |
| self.produce_global_ext(0x12abcdef, pickle.EXT4) # check endianness |
| |
| def test_list_chunking(self): |
| n = 10 # too small to chunk |
| x = range(n) |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| num_appends = count_opcode(pickle.APPENDS, s) |
| self.assertEqual(num_appends, proto > 0) |
| |
| n = 2500 # expect at least two chunks when proto > 0 |
| x = range(n) |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| num_appends = count_opcode(pickle.APPENDS, s) |
| if proto == 0: |
| self.assertEqual(num_appends, 0) |
| else: |
| self.failUnless(num_appends >= 2) |
| |
| def test_dict_chunking(self): |
| n = 10 # too small to chunk |
| x = dict.fromkeys(range(n)) |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| num_setitems = count_opcode(pickle.SETITEMS, s) |
| self.assertEqual(num_setitems, proto > 0) |
| |
| n = 2500 # expect at least two chunks when proto > 0 |
| x = dict.fromkeys(range(n)) |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| y = self.loads(s) |
| self.assertEqual(x, y) |
| num_setitems = count_opcode(pickle.SETITEMS, s) |
| if proto == 0: |
| self.assertEqual(num_setitems, 0) |
| else: |
| self.failUnless(num_setitems >= 2) |
| |
| def test_simple_newobj(self): |
| x = object.__new__(SimpleNewObj) # avoid __init__ |
| x.abc = 666 |
| for proto in protocols: |
| s = self.dumps(x, proto) |
| self.assertEqual(opcode_in_pickle(pickle.NEWOBJ, s), proto >= 2) |
| y = self.loads(s) # will raise TypeError if __init__ called |
| self.assertEqual(y.abc, 666) |
| self.assertEqual(x.__dict__, y.__dict__) |
| |
| def test_newobj_list_slots(self): |
| x = SlotList([1, 2, 3]) |
| x.foo = 42 |
| x.bar = "hello" |
| s = self.dumps(x, 2) |
| y = self.loads(s) |
| self.assertEqual(list(x), list(y)) |
| self.assertEqual(x.__dict__, y.__dict__) |
| self.assertEqual(x.foo, y.foo) |
| self.assertEqual(x.bar, y.bar) |
| |
| def test_reduce_overrides_default_reduce_ex(self): |
| for proto in 0, 1, 2: |
| x = REX_one() |
| self.assertEqual(x._reduce_called, 0) |
| s = self.dumps(x, proto) |
| self.assertEqual(x._reduce_called, 1) |
| y = self.loads(s) |
| self.assertEqual(y._reduce_called, 0) |
| |
| def test_reduce_ex_called(self): |
| for proto in 0, 1, 2: |
| x = REX_two() |
| self.assertEqual(x._proto, None) |
| s = self.dumps(x, proto) |
| self.assertEqual(x._proto, proto) |
| y = self.loads(s) |
| self.assertEqual(y._proto, None) |
| |
| def test_reduce_ex_overrides_reduce(self): |
| for proto in 0, 1, 2: |
| x = REX_three() |
| self.assertEqual(x._proto, None) |
| s = self.dumps(x, proto) |
| self.assertEqual(x._proto, proto) |
| y = self.loads(s) |
| self.assertEqual(y._proto, None) |
| |
| def test_reduce_ex_calls_base(self): |
| for proto in 0, 1, 2: |
| x = REX_four() |
| self.assertEqual(x._proto, None) |
| s = self.dumps(x, proto) |
| self.assertEqual(x._proto, proto) |
| y = self.loads(s) |
| self.assertEqual(y._proto, proto) |
| |
| def test_reduce_calls_base(self): |
| for proto in 0, 1, 2: |
| x = REX_five() |
| self.assertEqual(x._reduce_called, 0) |
| s = self.dumps(x, proto) |
| self.assertEqual(x._reduce_called, 1) |
| y = self.loads(s) |
| self.assertEqual(y._reduce_called, 1) |
| |
| # Test classes for reduce_ex |
| |
| class REX_one(object): |
| _reduce_called = 0 |
| def __reduce__(self): |
| self._reduce_called = 1 |
| return REX_one, () |
| # No __reduce_ex__ here, but inheriting it from object |
| |
| class REX_two(object): |
| _proto = None |
| def __reduce_ex__(self, proto): |
| self._proto = proto |
| return REX_two, () |
| # No __reduce__ here, but inheriting it from object |
| |
| class REX_three(object): |
| _proto = None |
| def __reduce_ex__(self, proto): |
| self._proto = proto |
| return REX_two, () |
| def __reduce__(self): |
| raise TestFailed, "This __reduce__ shouldn't be called" |
| |
| class REX_four(object): |
| _proto = None |
| def __reduce_ex__(self, proto): |
| self._proto = proto |
| return object.__reduce_ex__(self, proto) |
| # Calling base class method should succeed |
| |
| class REX_five(object): |
| _reduce_called = 0 |
| def __reduce__(self): |
| self._reduce_called = 1 |
| return object.__reduce__(self) |
| # This one used to fail with infinite recursion |
| |
| # Test classes for newobj |
| |
| class MyInt(int): |
| sample = 1 |
| |
| class MyLong(long): |
| sample = 1L |
| |
| class MyFloat(float): |
| sample = 1.0 |
| |
| class MyComplex(complex): |
| sample = 1.0 + 0.0j |
| |
| class MyStr(str): |
| sample = "hello" |
| |
| class MyUnicode(unicode): |
| sample = u"hello \u1234" |
| |
| class MyTuple(tuple): |
| sample = (1, 2, 3) |
| |
| class MyList(list): |
| sample = [1, 2, 3] |
| |
| class MyDict(dict): |
| sample = {"a": 1, "b": 2} |
| |
| myclasses = [MyInt, MyLong, MyFloat, |
| MyComplex, |
| MyStr, MyUnicode, |
| MyTuple, MyList, MyDict] |
| |
| |
| class SlotList(MyList): |
| __slots__ = ["foo"] |
| |
| class SimpleNewObj(object): |
| def __init__(self, a, b, c): |
| # raise an error, to make sure this isn't called |
| raise TypeError("SimpleNewObj.__init__() didn't expect to get called") |
| |
| class AbstractPickleModuleTests(unittest.TestCase): |
| |
| def test_dump_closed_file(self): |
| import os |
| f = open(TESTFN, "w") |
| try: |
| f.close() |
| self.assertRaises(ValueError, self.module.dump, 123, f) |
| finally: |
| os.remove(TESTFN) |
| |
| def test_load_closed_file(self): |
| import os |
| f = open(TESTFN, "w") |
| try: |
| f.close() |
| self.assertRaises(ValueError, self.module.dump, 123, f) |
| finally: |
| os.remove(TESTFN) |
| |
| def test_highest_protocol(self): |
| # Of course this needs to be changed when HIGHEST_PROTOCOL changes. |
| self.assertEqual(self.module.HIGHEST_PROTOCOL, 2) |
| |
| def test_callapi(self): |
| from cStringIO import StringIO |
| f = StringIO() |
| # With and without keyword arguments |
| self.module.dump(123, f, -1) |
| self.module.dump(123, file=f, protocol=-1) |
| self.module.dumps(123, -1) |
| self.module.dumps(123, protocol=-1) |
| self.module.Pickler(f, -1) |
| self.module.Pickler(f, protocol=-1) |
| |
| class AbstractPersistentPicklerTests(unittest.TestCase): |
| |
| # This class defines persistent_id() and persistent_load() |
| # functions that should be used by the pickler. All even integers |
| # are pickled using persistent ids. |
| |
| def persistent_id(self, object): |
| if isinstance(object, int) and object % 2 == 0: |
| self.id_count += 1 |
| return str(object) |
| else: |
| return None |
| |
| def persistent_load(self, oid): |
| self.load_count += 1 |
| object = int(oid) |
| assert object % 2 == 0 |
| return object |
| |
| def test_persistence(self): |
| self.id_count = 0 |
| self.load_count = 0 |
| L = range(10) |
| self.assertEqual(self.loads(self.dumps(L)), L) |
| self.assertEqual(self.id_count, 5) |
| self.assertEqual(self.load_count, 5) |
| |
| def test_bin_persistence(self): |
| self.id_count = 0 |
| self.load_count = 0 |
| L = range(10) |
| self.assertEqual(self.loads(self.dumps(L, 1)), L) |
| self.assertEqual(self.id_count, 5) |
| self.assertEqual(self.load_count, 5) |