# Python test set -- built-in functions | |
import platform | |
import unittest | |
from test.test_support import fcmp, have_unicode, TESTFN, unlink, \ | |
run_unittest, check_py3k_warnings | |
import warnings | |
from operator import neg | |
import sys, cStringIO, random, UserDict | |
# count the number of test runs. | |
# used to skip running test_execfile() multiple times | |
# and to create unique strings to intern in test_intern() | |
numruns = 0 | |
class Squares: | |
def __init__(self, max): | |
self.max = max | |
self.sofar = [] | |
def __len__(self): return len(self.sofar) | |
def __getitem__(self, i): | |
if not 0 <= i < self.max: raise IndexError | |
n = len(self.sofar) | |
while n <= i: | |
self.sofar.append(n*n) | |
n += 1 | |
return self.sofar[i] | |
class StrSquares: | |
def __init__(self, max): | |
self.max = max | |
self.sofar = [] | |
def __len__(self): | |
return len(self.sofar) | |
def __getitem__(self, i): | |
if not 0 <= i < self.max: | |
raise IndexError | |
n = len(self.sofar) | |
while n <= i: | |
self.sofar.append(str(n*n)) | |
n += 1 | |
return self.sofar[i] | |
class BitBucket: | |
def write(self, line): | |
pass | |
class TestFailingBool: | |
def __nonzero__(self): | |
raise RuntimeError | |
class TestFailingIter: | |
def __iter__(self): | |
raise RuntimeError | |
class BuiltinTest(unittest.TestCase): | |
def test_import(self): | |
__import__('sys') | |
__import__('time') | |
__import__('string') | |
__import__(name='sys') | |
__import__(name='time', level=0) | |
self.assertRaises(ImportError, __import__, 'spamspam') | |
self.assertRaises(TypeError, __import__, 1, 2, 3, 4) | |
self.assertRaises(ValueError, __import__, '') | |
self.assertRaises(TypeError, __import__, 'sys', name='sys') | |
def test_abs(self): | |
# int | |
self.assertEqual(abs(0), 0) | |
self.assertEqual(abs(1234), 1234) | |
self.assertEqual(abs(-1234), 1234) | |
self.assertTrue(abs(-sys.maxint-1) > 0) | |
# float | |
self.assertEqual(abs(0.0), 0.0) | |
self.assertEqual(abs(3.14), 3.14) | |
self.assertEqual(abs(-3.14), 3.14) | |
# long | |
self.assertEqual(abs(0L), 0L) | |
self.assertEqual(abs(1234L), 1234L) | |
self.assertEqual(abs(-1234L), 1234L) | |
# str | |
self.assertRaises(TypeError, abs, 'a') | |
# bool | |
self.assertEqual(abs(True), 1) | |
self.assertEqual(abs(False), 0) | |
# other | |
self.assertRaises(TypeError, abs) | |
self.assertRaises(TypeError, abs, None) | |
class AbsClass(object): | |
def __abs__(self): | |
return -5 | |
self.assertEqual(abs(AbsClass()), -5) | |
def test_all(self): | |
self.assertEqual(all([2, 4, 6]), True) | |
self.assertEqual(all([2, None, 6]), False) | |
self.assertRaises(RuntimeError, all, [2, TestFailingBool(), 6]) | |
self.assertRaises(RuntimeError, all, TestFailingIter()) | |
self.assertRaises(TypeError, all, 10) # Non-iterable | |
self.assertRaises(TypeError, all) # No args | |
self.assertRaises(TypeError, all, [2, 4, 6], []) # Too many args | |
self.assertEqual(all([]), True) # Empty iterator | |
S = [50, 60] | |
self.assertEqual(all(x > 42 for x in S), True) | |
S = [50, 40, 60] | |
self.assertEqual(all(x > 42 for x in S), False) | |
def test_any(self): | |
self.assertEqual(any([None, None, None]), False) | |
self.assertEqual(any([None, 4, None]), True) | |
self.assertRaises(RuntimeError, any, [None, TestFailingBool(), 6]) | |
self.assertRaises(RuntimeError, all, TestFailingIter()) | |
self.assertRaises(TypeError, any, 10) # Non-iterable | |
self.assertRaises(TypeError, any) # No args | |
self.assertRaises(TypeError, any, [2, 4, 6], []) # Too many args | |
self.assertEqual(any([]), False) # Empty iterator | |
S = [40, 60, 30] | |
self.assertEqual(any(x > 42 for x in S), True) | |
S = [10, 20, 30] | |
self.assertEqual(any(x > 42 for x in S), False) | |
def test_neg(self): | |
x = -sys.maxint-1 | |
self.assertTrue(isinstance(x, int)) | |
self.assertEqual(-x, sys.maxint+1) | |
def test_apply(self): | |
def f0(*args): | |
self.assertEqual(args, ()) | |
def f1(a1): | |
self.assertEqual(a1, 1) | |
def f2(a1, a2): | |
self.assertEqual(a1, 1) | |
self.assertEqual(a2, 2) | |
def f3(a1, a2, a3): | |
self.assertEqual(a1, 1) | |
self.assertEqual(a2, 2) | |
self.assertEqual(a3, 3) | |
apply(f0, ()) | |
apply(f1, (1,)) | |
apply(f2, (1, 2)) | |
apply(f3, (1, 2, 3)) | |
# A PyCFunction that takes only positional parameters should allow an | |
# empty keyword dictionary to pass without a complaint, but raise a | |
# TypeError if the dictionary is non-empty. | |
apply(id, (1,), {}) | |
self.assertRaises(TypeError, apply, id, (1,), {"foo": 1}) | |
self.assertRaises(TypeError, apply) | |
self.assertRaises(TypeError, apply, id, 42) | |
self.assertRaises(TypeError, apply, id, (42,), 42) | |
def test_callable(self): | |
self.assertTrue(callable(len)) | |
self.assertFalse(callable("a")) | |
self.assertTrue(callable(callable)) | |
self.assertTrue(callable(lambda x, y: x + y)) | |
self.assertFalse(callable(__builtins__)) | |
def f(): pass | |
self.assertTrue(callable(f)) | |
class Classic: | |
def meth(self): pass | |
self.assertTrue(callable(Classic)) | |
c = Classic() | |
self.assertTrue(callable(c.meth)) | |
self.assertFalse(callable(c)) | |
class NewStyle(object): | |
def meth(self): pass | |
self.assertTrue(callable(NewStyle)) | |
n = NewStyle() | |
self.assertTrue(callable(n.meth)) | |
self.assertFalse(callable(n)) | |
# Classic and new-style classes evaluate __call__() differently | |
c.__call__ = None | |
self.assertTrue(callable(c)) | |
del c.__call__ | |
self.assertFalse(callable(c)) | |
n.__call__ = None | |
self.assertFalse(callable(n)) | |
del n.__call__ | |
self.assertFalse(callable(n)) | |
class N2(object): | |
def __call__(self): pass | |
n2 = N2() | |
self.assertTrue(callable(n2)) | |
class N3(N2): pass | |
n3 = N3() | |
self.assertTrue(callable(n3)) | |
def test_chr(self): | |
self.assertEqual(chr(32), ' ') | |
self.assertEqual(chr(65), 'A') | |
self.assertEqual(chr(97), 'a') | |
self.assertEqual(chr(0xff), '\xff') | |
self.assertRaises(ValueError, chr, 256) | |
self.assertRaises(TypeError, chr) | |
def test_cmp(self): | |
self.assertEqual(cmp(-1, 1), -1) | |
self.assertEqual(cmp(1, -1), 1) | |
self.assertEqual(cmp(1, 1), 0) | |
# verify that circular objects are not handled | |
a = []; a.append(a) | |
b = []; b.append(b) | |
from UserList import UserList | |
c = UserList(); c.append(c) | |
self.assertRaises(RuntimeError, cmp, a, b) | |
self.assertRaises(RuntimeError, cmp, b, c) | |
self.assertRaises(RuntimeError, cmp, c, a) | |
self.assertRaises(RuntimeError, cmp, a, c) | |
# okay, now break the cycles | |
a.pop(); b.pop(); c.pop() | |
self.assertRaises(TypeError, cmp) | |
def test_coerce(self): | |
self.assertTrue(not fcmp(coerce(1, 1.1), (1.0, 1.1))) | |
self.assertEqual(coerce(1, 1L), (1L, 1L)) | |
self.assertTrue(not fcmp(coerce(1L, 1.1), (1.0, 1.1))) | |
self.assertRaises(TypeError, coerce) | |
class BadNumber: | |
def __coerce__(self, other): | |
raise ValueError | |
self.assertRaises(ValueError, coerce, 42, BadNumber()) | |
self.assertRaises(OverflowError, coerce, 0.5, int("12345" * 1000)) | |
def test_compile(self): | |
compile('print 1\n', '', 'exec') | |
bom = '\xef\xbb\xbf' | |
compile(bom + 'print 1\n', '', 'exec') | |
compile(source='pass', filename='?', mode='exec') | |
compile(dont_inherit=0, filename='tmp', source='0', mode='eval') | |
compile('pass', '?', dont_inherit=1, mode='exec') | |
self.assertRaises(TypeError, compile) | |
self.assertRaises(ValueError, compile, 'print 42\n', '<string>', 'badmode') | |
self.assertRaises(ValueError, compile, 'print 42\n', '<string>', 'single', 0xff) | |
self.assertRaises(TypeError, compile, chr(0), 'f', 'exec') | |
self.assertRaises(TypeError, compile, 'pass', '?', 'exec', | |
mode='eval', source='0', filename='tmp') | |
if have_unicode: | |
compile(unicode('print u"\xc3\xa5"\n', 'utf8'), '', 'exec') | |
self.assertRaises(TypeError, compile, unichr(0), 'f', 'exec') | |
self.assertRaises(ValueError, compile, unicode('a = 1'), 'f', 'bad') | |
def test_delattr(self): | |
import sys | |
sys.spam = 1 | |
delattr(sys, 'spam') | |
self.assertRaises(TypeError, delattr) | |
def test_dir(self): | |
# dir(wrong number of arguments) | |
self.assertRaises(TypeError, dir, 42, 42) | |
# dir() - local scope | |
local_var = 1 | |
self.assertIn('local_var', dir()) | |
# dir(module) | |
import sys | |
self.assertIn('exit', dir(sys)) | |
# dir(module_with_invalid__dict__) | |
import types | |
class Foo(types.ModuleType): | |
__dict__ = 8 | |
f = Foo("foo") | |
self.assertRaises(TypeError, dir, f) | |
# dir(type) | |
self.assertIn("strip", dir(str)) | |
self.assertNotIn("__mro__", dir(str)) | |
# dir(obj) | |
class Foo(object): | |
def __init__(self): | |
self.x = 7 | |
self.y = 8 | |
self.z = 9 | |
f = Foo() | |
self.assertIn("y", dir(f)) | |
# dir(obj_no__dict__) | |
class Foo(object): | |
__slots__ = [] | |
f = Foo() | |
self.assertIn("__repr__", dir(f)) | |
# dir(obj_no__class__with__dict__) | |
# (an ugly trick to cause getattr(f, "__class__") to fail) | |
class Foo(object): | |
__slots__ = ["__class__", "__dict__"] | |
def __init__(self): | |
self.bar = "wow" | |
f = Foo() | |
self.assertNotIn("__repr__", dir(f)) | |
self.assertIn("bar", dir(f)) | |
# dir(obj_using __dir__) | |
class Foo(object): | |
def __dir__(self): | |
return ["kan", "ga", "roo"] | |
f = Foo() | |
self.assertTrue(dir(f) == ["ga", "kan", "roo"]) | |
# dir(obj__dir__not_list) | |
class Foo(object): | |
def __dir__(self): | |
return 7 | |
f = Foo() | |
self.assertRaises(TypeError, dir, f) | |
def test_divmod(self): | |
self.assertEqual(divmod(12, 7), (1, 5)) | |
self.assertEqual(divmod(-12, 7), (-2, 2)) | |
self.assertEqual(divmod(12, -7), (-2, -2)) | |
self.assertEqual(divmod(-12, -7), (1, -5)) | |
self.assertEqual(divmod(12L, 7L), (1L, 5L)) | |
self.assertEqual(divmod(-12L, 7L), (-2L, 2L)) | |
self.assertEqual(divmod(12L, -7L), (-2L, -2L)) | |
self.assertEqual(divmod(-12L, -7L), (1L, -5L)) | |
self.assertEqual(divmod(12, 7L), (1, 5L)) | |
self.assertEqual(divmod(-12, 7L), (-2, 2L)) | |
self.assertEqual(divmod(12L, -7), (-2L, -2)) | |
self.assertEqual(divmod(-12L, -7), (1L, -5)) | |
self.assertEqual(divmod(-sys.maxint-1, -1), | |
(sys.maxint+1, 0)) | |
self.assertTrue(not fcmp(divmod(3.25, 1.0), (3.0, 0.25))) | |
self.assertTrue(not fcmp(divmod(-3.25, 1.0), (-4.0, 0.75))) | |
self.assertTrue(not fcmp(divmod(3.25, -1.0), (-4.0, -0.75))) | |
self.assertTrue(not fcmp(divmod(-3.25, -1.0), (3.0, -0.25))) | |
self.assertRaises(TypeError, divmod) | |
def test_eval(self): | |
self.assertEqual(eval('1+1'), 2) | |
self.assertEqual(eval(' 1+1\n'), 2) | |
globals = {'a': 1, 'b': 2} | |
locals = {'b': 200, 'c': 300} | |
self.assertEqual(eval('a', globals) , 1) | |
self.assertEqual(eval('a', globals, locals), 1) | |
self.assertEqual(eval('b', globals, locals), 200) | |
self.assertEqual(eval('c', globals, locals), 300) | |
if have_unicode: | |
self.assertEqual(eval(unicode('1+1')), 2) | |
self.assertEqual(eval(unicode(' 1+1\n')), 2) | |
globals = {'a': 1, 'b': 2} | |
locals = {'b': 200, 'c': 300} | |
if have_unicode: | |
self.assertEqual(eval(unicode('a'), globals), 1) | |
self.assertEqual(eval(unicode('a'), globals, locals), 1) | |
self.assertEqual(eval(unicode('b'), globals, locals), 200) | |
self.assertEqual(eval(unicode('c'), globals, locals), 300) | |
bom = '\xef\xbb\xbf' | |
self.assertEqual(eval(bom + 'a', globals, locals), 1) | |
self.assertEqual(eval(unicode('u"\xc3\xa5"', 'utf8'), globals), | |
unicode('\xc3\xa5', 'utf8')) | |
self.assertRaises(TypeError, eval) | |
self.assertRaises(TypeError, eval, ()) | |
def test_general_eval(self): | |
# Tests that general mappings can be used for the locals argument | |
class M: | |
"Test mapping interface versus possible calls from eval()." | |
def __getitem__(self, key): | |
if key == 'a': | |
return 12 | |
raise KeyError | |
def keys(self): | |
return list('xyz') | |
m = M() | |
g = globals() | |
self.assertEqual(eval('a', g, m), 12) | |
self.assertRaises(NameError, eval, 'b', g, m) | |
self.assertEqual(eval('dir()', g, m), list('xyz')) | |
self.assertEqual(eval('globals()', g, m), g) | |
self.assertEqual(eval('locals()', g, m), m) | |
self.assertRaises(TypeError, eval, 'a', m) | |
class A: | |
"Non-mapping" | |
pass | |
m = A() | |
self.assertRaises(TypeError, eval, 'a', g, m) | |
# Verify that dict subclasses work as well | |
class D(dict): | |
def __getitem__(self, key): | |
if key == 'a': | |
return 12 | |
return dict.__getitem__(self, key) | |
def keys(self): | |
return list('xyz') | |
d = D() | |
self.assertEqual(eval('a', g, d), 12) | |
self.assertRaises(NameError, eval, 'b', g, d) | |
self.assertEqual(eval('dir()', g, d), list('xyz')) | |
self.assertEqual(eval('globals()', g, d), g) | |
self.assertEqual(eval('locals()', g, d), d) | |
# Verify locals stores (used by list comps) | |
eval('[locals() for i in (2,3)]', g, d) | |
eval('[locals() for i in (2,3)]', g, UserDict.UserDict()) | |
class SpreadSheet: | |
"Sample application showing nested, calculated lookups." | |
_cells = {} | |
def __setitem__(self, key, formula): | |
self._cells[key] = formula | |
def __getitem__(self, key): | |
return eval(self._cells[key], globals(), self) | |
ss = SpreadSheet() | |
ss['a1'] = '5' | |
ss['a2'] = 'a1*6' | |
ss['a3'] = 'a2*7' | |
self.assertEqual(ss['a3'], 210) | |
# Verify that dir() catches a non-list returned by eval | |
# SF bug #1004669 | |
class C: | |
def __getitem__(self, item): | |
raise KeyError(item) | |
def keys(self): | |
return 'a' | |
self.assertRaises(TypeError, eval, 'dir()', globals(), C()) | |
# Done outside of the method test_z to get the correct scope | |
z = 0 | |
f = open(TESTFN, 'w') | |
f.write('z = z+1\n') | |
f.write('z = z*2\n') | |
f.close() | |
with check_py3k_warnings(("execfile.. not supported in 3.x", | |
DeprecationWarning)): | |
execfile(TESTFN) | |
def test_execfile(self): | |
global numruns | |
if numruns: | |
return | |
numruns += 1 | |
globals = {'a': 1, 'b': 2} | |
locals = {'b': 200, 'c': 300} | |
self.assertEqual(self.__class__.z, 2) | |
globals['z'] = 0 | |
execfile(TESTFN, globals) | |
self.assertEqual(globals['z'], 2) | |
locals['z'] = 0 | |
execfile(TESTFN, globals, locals) | |
self.assertEqual(locals['z'], 2) | |
class M: | |
"Test mapping interface versus possible calls from execfile()." | |
def __init__(self): | |
self.z = 10 | |
def __getitem__(self, key): | |
if key == 'z': | |
return self.z | |
raise KeyError | |
def __setitem__(self, key, value): | |
if key == 'z': | |
self.z = value | |
return | |
raise KeyError | |
locals = M() | |
locals['z'] = 0 | |
execfile(TESTFN, globals, locals) | |
self.assertEqual(locals['z'], 2) | |
unlink(TESTFN) | |
self.assertRaises(TypeError, execfile) | |
self.assertRaises(TypeError, execfile, TESTFN, {}, ()) | |
import os | |
self.assertRaises(IOError, execfile, os.curdir) | |
self.assertRaises(IOError, execfile, "I_dont_exist") | |
def test_filter(self): | |
self.assertEqual(filter(lambda c: 'a' <= c <= 'z', 'Hello World'), 'elloorld') | |
self.assertEqual(filter(None, [1, 'hello', [], [3], '', None, 9, 0]), [1, 'hello', [3], 9]) | |
self.assertEqual(filter(lambda x: x > 0, [1, -3, 9, 0, 2]), [1, 9, 2]) | |
self.assertEqual(filter(None, Squares(10)), [1, 4, 9, 16, 25, 36, 49, 64, 81]) | |
self.assertEqual(filter(lambda x: x%2, Squares(10)), [1, 9, 25, 49, 81]) | |
def identity(item): | |
return 1 | |
filter(identity, Squares(5)) | |
self.assertRaises(TypeError, filter) | |
class BadSeq(object): | |
def __getitem__(self, index): | |
if index<4: | |
return 42 | |
raise ValueError | |
self.assertRaises(ValueError, filter, lambda x: x, BadSeq()) | |
def badfunc(): | |
pass | |
self.assertRaises(TypeError, filter, badfunc, range(5)) | |
# test bltinmodule.c::filtertuple() | |
self.assertEqual(filter(None, (1, 2)), (1, 2)) | |
self.assertEqual(filter(lambda x: x>=3, (1, 2, 3, 4)), (3, 4)) | |
self.assertRaises(TypeError, filter, 42, (1, 2)) | |
# test bltinmodule.c::filterstring() | |
self.assertEqual(filter(None, "12"), "12") | |
self.assertEqual(filter(lambda x: x>="3", "1234"), "34") | |
self.assertRaises(TypeError, filter, 42, "12") | |
class badstr(str): | |
def __getitem__(self, index): | |
raise ValueError | |
self.assertRaises(ValueError, filter, lambda x: x >="3", badstr("1234")) | |
class badstr2(str): | |
def __getitem__(self, index): | |
return 42 | |
self.assertRaises(TypeError, filter, lambda x: x >=42, badstr2("1234")) | |
class weirdstr(str): | |
def __getitem__(self, index): | |
return weirdstr(2*str.__getitem__(self, index)) | |
self.assertEqual(filter(lambda x: x>="33", weirdstr("1234")), "3344") | |
class shiftstr(str): | |
def __getitem__(self, index): | |
return chr(ord(str.__getitem__(self, index))+1) | |
self.assertEqual(filter(lambda x: x>="3", shiftstr("1234")), "345") | |
if have_unicode: | |
# test bltinmodule.c::filterunicode() | |
self.assertEqual(filter(None, unicode("12")), unicode("12")) | |
self.assertEqual(filter(lambda x: x>="3", unicode("1234")), unicode("34")) | |
self.assertRaises(TypeError, filter, 42, unicode("12")) | |
self.assertRaises(ValueError, filter, lambda x: x >="3", badstr(unicode("1234"))) | |
class badunicode(unicode): | |
def __getitem__(self, index): | |
return 42 | |
self.assertRaises(TypeError, filter, lambda x: x >=42, badunicode("1234")) | |
class weirdunicode(unicode): | |
def __getitem__(self, index): | |
return weirdunicode(2*unicode.__getitem__(self, index)) | |
self.assertEqual( | |
filter(lambda x: x>=unicode("33"), weirdunicode("1234")), unicode("3344")) | |
class shiftunicode(unicode): | |
def __getitem__(self, index): | |
return unichr(ord(unicode.__getitem__(self, index))+1) | |
self.assertEqual( | |
filter(lambda x: x>=unicode("3"), shiftunicode("1234")), | |
unicode("345") | |
) | |
def test_filter_subclasses(self): | |
# test that filter() never returns tuple, str or unicode subclasses | |
# and that the result always goes through __getitem__ | |
funcs = (None, bool, lambda x: True) | |
class tuple2(tuple): | |
def __getitem__(self, index): | |
return 2*tuple.__getitem__(self, index) | |
class str2(str): | |
def __getitem__(self, index): | |
return 2*str.__getitem__(self, index) | |
inputs = { | |
tuple2: {(): (), (1, 2, 3): (2, 4, 6)}, | |
str2: {"": "", "123": "112233"} | |
} | |
if have_unicode: | |
class unicode2(unicode): | |
def __getitem__(self, index): | |
return 2*unicode.__getitem__(self, index) | |
inputs[unicode2] = { | |
unicode(): unicode(), | |
unicode("123"): unicode("112233") | |
} | |
for (cls, inps) in inputs.iteritems(): | |
for (inp, exp) in inps.iteritems(): | |
# make sure the output goes through __getitem__ | |
# even if func is None | |
self.assertEqual( | |
filter(funcs[0], cls(inp)), | |
filter(funcs[1], cls(inp)) | |
) | |
for func in funcs: | |
outp = filter(func, cls(inp)) | |
self.assertEqual(outp, exp) | |
self.assertTrue(not isinstance(outp, cls)) | |
def test_getattr(self): | |
import sys | |
self.assertTrue(getattr(sys, 'stdout') is sys.stdout) | |
self.assertRaises(TypeError, getattr, sys, 1) | |
self.assertRaises(TypeError, getattr, sys, 1, "foo") | |
self.assertRaises(TypeError, getattr) | |
if have_unicode: | |
self.assertRaises(UnicodeError, getattr, sys, unichr(sys.maxunicode)) | |
def test_hasattr(self): | |
import sys | |
self.assertTrue(hasattr(sys, 'stdout')) | |
self.assertRaises(TypeError, hasattr, sys, 1) | |
self.assertRaises(TypeError, hasattr) | |
if have_unicode: | |
self.assertRaises(UnicodeError, hasattr, sys, unichr(sys.maxunicode)) | |
# Check that hasattr allows SystemExit and KeyboardInterrupts by | |
class A: | |
def __getattr__(self, what): | |
raise KeyboardInterrupt | |
self.assertRaises(KeyboardInterrupt, hasattr, A(), "b") | |
class B: | |
def __getattr__(self, what): | |
raise SystemExit | |
self.assertRaises(SystemExit, hasattr, B(), "b") | |
def test_hash(self): | |
hash(None) | |
self.assertEqual(hash(1), hash(1L)) | |
self.assertEqual(hash(1), hash(1.0)) | |
hash('spam') | |
if have_unicode: | |
self.assertEqual(hash('spam'), hash(unicode('spam'))) | |
hash((0,1,2,3)) | |
def f(): pass | |
self.assertRaises(TypeError, hash, []) | |
self.assertRaises(TypeError, hash, {}) | |
# Bug 1536021: Allow hash to return long objects | |
class X: | |
def __hash__(self): | |
return 2**100 | |
self.assertEqual(type(hash(X())), int) | |
class Y(object): | |
def __hash__(self): | |
return 2**100 | |
self.assertEqual(type(hash(Y())), int) | |
class Z(long): | |
def __hash__(self): | |
return self | |
self.assertEqual(hash(Z(42)), hash(42L)) | |
def test_hex(self): | |
self.assertEqual(hex(16), '0x10') | |
self.assertEqual(hex(16L), '0x10L') | |
self.assertEqual(hex(-16), '-0x10') | |
self.assertEqual(hex(-16L), '-0x10L') | |
self.assertRaises(TypeError, hex, {}) | |
def test_id(self): | |
id(None) | |
id(1) | |
id(1L) | |
id(1.0) | |
id('spam') | |
id((0,1,2,3)) | |
id([0,1,2,3]) | |
id({'spam': 1, 'eggs': 2, 'ham': 3}) | |
# Test input() later, together with raw_input | |
def test_intern(self): | |
self.assertRaises(TypeError, intern) | |
# This fails if the test is run twice with a constant string, | |
# therefore append the run counter | |
s = "never interned before " + str(numruns) | |
self.assertTrue(intern(s) is s) | |
s2 = s.swapcase().swapcase() | |
self.assertTrue(intern(s2) is s) | |
# Subclasses of string can't be interned, because they | |
# provide too much opportunity for insane things to happen. | |
# We don't want them in the interned dict and if they aren't | |
# actually interned, we don't want to create the appearance | |
# that they are by allowing intern() to succeed. | |
class S(str): | |
def __hash__(self): | |
return 123 | |
self.assertRaises(TypeError, intern, S("abc")) | |
# It's still safe to pass these strings to routines that | |
# call intern internally, e.g. PyObject_SetAttr(). | |
s = S("abc") | |
setattr(s, s, s) | |
self.assertEqual(getattr(s, s), s) | |
def test_iter(self): | |
self.assertRaises(TypeError, iter) | |
self.assertRaises(TypeError, iter, 42, 42) | |
lists = [("1", "2"), ["1", "2"], "12"] | |
if have_unicode: | |
lists.append(unicode("12")) | |
for l in lists: | |
i = iter(l) | |
self.assertEqual(i.next(), '1') | |
self.assertEqual(i.next(), '2') | |
self.assertRaises(StopIteration, i.next) | |
def test_isinstance(self): | |
class C: | |
pass | |
class D(C): | |
pass | |
class E: | |
pass | |
c = C() | |
d = D() | |
e = E() | |
self.assertTrue(isinstance(c, C)) | |
self.assertTrue(isinstance(d, C)) | |
self.assertTrue(not isinstance(e, C)) | |
self.assertTrue(not isinstance(c, D)) | |
self.assertTrue(not isinstance('foo', E)) | |
self.assertRaises(TypeError, isinstance, E, 'foo') | |
self.assertRaises(TypeError, isinstance) | |
def test_issubclass(self): | |
class C: | |
pass | |
class D(C): | |
pass | |
class E: | |
pass | |
c = C() | |
d = D() | |
e = E() | |
self.assertTrue(issubclass(D, C)) | |
self.assertTrue(issubclass(C, C)) | |
self.assertTrue(not issubclass(C, D)) | |
self.assertRaises(TypeError, issubclass, 'foo', E) | |
self.assertRaises(TypeError, issubclass, E, 'foo') | |
self.assertRaises(TypeError, issubclass) | |
def test_len(self): | |
self.assertEqual(len('123'), 3) | |
self.assertEqual(len(()), 0) | |
self.assertEqual(len((1, 2, 3, 4)), 4) | |
self.assertEqual(len([1, 2, 3, 4]), 4) | |
self.assertEqual(len({}), 0) | |
self.assertEqual(len({'a':1, 'b': 2}), 2) | |
class BadSeq: | |
def __len__(self): | |
raise ValueError | |
self.assertRaises(ValueError, len, BadSeq()) | |
self.assertRaises(TypeError, len, 2) | |
class ClassicStyle: pass | |
class NewStyle(object): pass | |
self.assertRaises(AttributeError, len, ClassicStyle()) | |
self.assertRaises(TypeError, len, NewStyle()) | |
def test_map(self): | |
self.assertEqual( | |
map(None, 'hello world'), | |
['h','e','l','l','o',' ','w','o','r','l','d'] | |
) | |
self.assertEqual( | |
map(None, 'abcd', 'efg'), | |
[('a', 'e'), ('b', 'f'), ('c', 'g'), ('d', None)] | |
) | |
self.assertEqual( | |
map(None, range(10)), | |
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9] | |
) | |
self.assertEqual( | |
map(lambda x: x*x, range(1,4)), | |
[1, 4, 9] | |
) | |
try: | |
from math import sqrt | |
except ImportError: | |
def sqrt(x): | |
return pow(x, 0.5) | |
self.assertEqual( | |
map(lambda x: map(sqrt,x), [[16, 4], [81, 9]]), | |
[[4.0, 2.0], [9.0, 3.0]] | |
) | |
self.assertEqual( | |
map(lambda x, y: x+y, [1,3,2], [9,1,4]), | |
[10, 4, 6] | |
) | |
def plus(*v): | |
accu = 0 | |
for i in v: accu = accu + i | |
return accu | |
self.assertEqual( | |
map(plus, [1, 3, 7]), | |
[1, 3, 7] | |
) | |
self.assertEqual( | |
map(plus, [1, 3, 7], [4, 9, 2]), | |
[1+4, 3+9, 7+2] | |
) | |
self.assertEqual( | |
map(plus, [1, 3, 7], [4, 9, 2], [1, 1, 0]), | |
[1+4+1, 3+9+1, 7+2+0] | |
) | |
self.assertEqual( | |
map(None, Squares(10)), | |
[0, 1, 4, 9, 16, 25, 36, 49, 64, 81] | |
) | |
self.assertEqual( | |
map(int, Squares(10)), | |
[0, 1, 4, 9, 16, 25, 36, 49, 64, 81] | |
) | |
self.assertEqual( | |
map(None, Squares(3), Squares(2)), | |
[(0,0), (1,1), (4,None)] | |
) | |
self.assertEqual( | |
map(max, Squares(3), Squares(2)), | |
[0, 1, 4] | |
) | |
self.assertRaises(TypeError, map) | |
self.assertRaises(TypeError, map, lambda x: x, 42) | |
self.assertEqual(map(None, [42]), [42]) | |
class BadSeq: | |
def __getitem__(self, index): | |
raise ValueError | |
self.assertRaises(ValueError, map, lambda x: x, BadSeq()) | |
def badfunc(x): | |
raise RuntimeError | |
self.assertRaises(RuntimeError, map, badfunc, range(5)) | |
def test_max(self): | |
self.assertEqual(max('123123'), '3') | |
self.assertEqual(max(1, 2, 3), 3) | |
self.assertEqual(max((1, 2, 3, 1, 2, 3)), 3) | |
self.assertEqual(max([1, 2, 3, 1, 2, 3]), 3) | |
self.assertEqual(max(1, 2L, 3.0), 3.0) | |
self.assertEqual(max(1L, 2.0, 3), 3) | |
self.assertEqual(max(1.0, 2, 3L), 3L) | |
for stmt in ( | |
"max(key=int)", # no args | |
"max(1, key=int)", # single arg not iterable | |
"max(1, 2, keystone=int)", # wrong keyword | |
"max(1, 2, key=int, abc=int)", # two many keywords | |
"max(1, 2, key=1)", # keyfunc is not callable | |
): | |
try: | |
exec(stmt) in globals() | |
except TypeError: | |
pass | |
else: | |
self.fail(stmt) | |
self.assertEqual(max((1,), key=neg), 1) # one elem iterable | |
self.assertEqual(max((1,2), key=neg), 1) # two elem iterable | |
self.assertEqual(max(1, 2, key=neg), 1) # two elems | |
data = [random.randrange(200) for i in range(100)] | |
keys = dict((elem, random.randrange(50)) for elem in data) | |
f = keys.__getitem__ | |
self.assertEqual(max(data, key=f), | |
sorted(reversed(data), key=f)[-1]) | |
def test_min(self): | |
self.assertEqual(min('123123'), '1') | |
self.assertEqual(min(1, 2, 3), 1) | |
self.assertEqual(min((1, 2, 3, 1, 2, 3)), 1) | |
self.assertEqual(min([1, 2, 3, 1, 2, 3]), 1) | |
self.assertEqual(min(1, 2L, 3.0), 1) | |
self.assertEqual(min(1L, 2.0, 3), 1L) | |
self.assertEqual(min(1.0, 2, 3L), 1.0) | |
self.assertRaises(TypeError, min) | |
self.assertRaises(TypeError, min, 42) | |
self.assertRaises(ValueError, min, ()) | |
class BadSeq: | |
def __getitem__(self, index): | |
raise ValueError | |
self.assertRaises(ValueError, min, BadSeq()) | |
class BadNumber: | |
def __cmp__(self, other): | |
raise ValueError | |
self.assertRaises(ValueError, min, (42, BadNumber())) | |
for stmt in ( | |
"min(key=int)", # no args | |
"min(1, key=int)", # single arg not iterable | |
"min(1, 2, keystone=int)", # wrong keyword | |
"min(1, 2, key=int, abc=int)", # two many keywords | |
"min(1, 2, key=1)", # keyfunc is not callable | |
): | |
try: | |
exec(stmt) in globals() | |
except TypeError: | |
pass | |
else: | |
self.fail(stmt) | |
self.assertEqual(min((1,), key=neg), 1) # one elem iterable | |
self.assertEqual(min((1,2), key=neg), 2) # two elem iterable | |
self.assertEqual(min(1, 2, key=neg), 2) # two elems | |
data = [random.randrange(200) for i in range(100)] | |
keys = dict((elem, random.randrange(50)) for elem in data) | |
f = keys.__getitem__ | |
self.assertEqual(min(data, key=f), | |
sorted(data, key=f)[0]) | |
def test_next(self): | |
it = iter(range(2)) | |
self.assertEqual(next(it), 0) | |
self.assertEqual(next(it), 1) | |
self.assertRaises(StopIteration, next, it) | |
self.assertRaises(StopIteration, next, it) | |
self.assertEqual(next(it, 42), 42) | |
class Iter(object): | |
def __iter__(self): | |
return self | |
def next(self): | |
raise StopIteration | |
it = iter(Iter()) | |
self.assertEqual(next(it, 42), 42) | |
self.assertRaises(StopIteration, next, it) | |
def gen(): | |
yield 1 | |
return | |
it = gen() | |
self.assertEqual(next(it), 1) | |
self.assertRaises(StopIteration, next, it) | |
self.assertEqual(next(it, 42), 42) | |
def test_oct(self): | |
self.assertEqual(oct(100), '0144') | |
self.assertEqual(oct(100L), '0144L') | |
self.assertEqual(oct(-100), '-0144') | |
self.assertEqual(oct(-100L), '-0144L') | |
self.assertRaises(TypeError, oct, ()) | |
def write_testfile(self): | |
# NB the first 4 lines are also used to test input and raw_input, below | |
fp = open(TESTFN, 'w') | |
try: | |
fp.write('1+1\n') | |
fp.write('1+1\n') | |
fp.write('The quick brown fox jumps over the lazy dog') | |
fp.write('.\n') | |
fp.write('Dear John\n') | |
fp.write('XXX'*100) | |
fp.write('YYY'*100) | |
finally: | |
fp.close() | |
def test_open(self): | |
self.write_testfile() | |
fp = open(TESTFN, 'r') | |
try: | |
self.assertEqual(fp.readline(4), '1+1\n') | |
self.assertEqual(fp.readline(4), '1+1\n') | |
self.assertEqual(fp.readline(), 'The quick brown fox jumps over the lazy dog.\n') | |
self.assertEqual(fp.readline(4), 'Dear') | |
self.assertEqual(fp.readline(100), ' John\n') | |
self.assertEqual(fp.read(300), 'XXX'*100) | |
self.assertEqual(fp.read(1000), 'YYY'*100) | |
finally: | |
fp.close() | |
unlink(TESTFN) | |
def test_ord(self): | |
self.assertEqual(ord(' '), 32) | |
self.assertEqual(ord('A'), 65) | |
self.assertEqual(ord('a'), 97) | |
if have_unicode: | |
self.assertEqual(ord(unichr(sys.maxunicode)), sys.maxunicode) | |
self.assertRaises(TypeError, ord, 42) | |
if have_unicode: | |
self.assertRaises(TypeError, ord, unicode("12")) | |
def test_pow(self): | |
self.assertEqual(pow(0,0), 1) | |
self.assertEqual(pow(0,1), 0) | |
self.assertEqual(pow(1,0), 1) | |
self.assertEqual(pow(1,1), 1) | |
self.assertEqual(pow(2,0), 1) | |
self.assertEqual(pow(2,10), 1024) | |
self.assertEqual(pow(2,20), 1024*1024) | |
self.assertEqual(pow(2,30), 1024*1024*1024) | |
self.assertEqual(pow(-2,0), 1) | |
self.assertEqual(pow(-2,1), -2) | |
self.assertEqual(pow(-2,2), 4) | |
self.assertEqual(pow(-2,3), -8) | |
self.assertEqual(pow(0L,0), 1) | |
self.assertEqual(pow(0L,1), 0) | |
self.assertEqual(pow(1L,0), 1) | |
self.assertEqual(pow(1L,1), 1) | |
self.assertEqual(pow(2L,0), 1) | |
self.assertEqual(pow(2L,10), 1024) | |
self.assertEqual(pow(2L,20), 1024*1024) | |
self.assertEqual(pow(2L,30), 1024*1024*1024) | |
self.assertEqual(pow(-2L,0), 1) | |
self.assertEqual(pow(-2L,1), -2) | |
self.assertEqual(pow(-2L,2), 4) | |
self.assertEqual(pow(-2L,3), -8) | |
self.assertAlmostEqual(pow(0.,0), 1.) | |
self.assertAlmostEqual(pow(0.,1), 0.) | |
self.assertAlmostEqual(pow(1.,0), 1.) | |
self.assertAlmostEqual(pow(1.,1), 1.) | |
self.assertAlmostEqual(pow(2.,0), 1.) | |
self.assertAlmostEqual(pow(2.,10), 1024.) | |
self.assertAlmostEqual(pow(2.,20), 1024.*1024.) | |
self.assertAlmostEqual(pow(2.,30), 1024.*1024.*1024.) | |
self.assertAlmostEqual(pow(-2.,0), 1.) | |
self.assertAlmostEqual(pow(-2.,1), -2.) | |
self.assertAlmostEqual(pow(-2.,2), 4.) | |
self.assertAlmostEqual(pow(-2.,3), -8.) | |
for x in 2, 2L, 2.0: | |
for y in 10, 10L, 10.0: | |
for z in 1000, 1000L, 1000.0: | |
if isinstance(x, float) or \ | |
isinstance(y, float) or \ | |
isinstance(z, float): | |
self.assertRaises(TypeError, pow, x, y, z) | |
else: | |
self.assertAlmostEqual(pow(x, y, z), 24.0) | |
self.assertRaises(TypeError, pow, -1, -2, 3) | |
self.assertRaises(ValueError, pow, 1, 2, 0) | |
self.assertRaises(TypeError, pow, -1L, -2L, 3L) | |
self.assertRaises(ValueError, pow, 1L, 2L, 0L) | |
# Will return complex in 3.0: | |
self.assertRaises(ValueError, pow, -342.43, 0.234) | |
self.assertRaises(TypeError, pow) | |
def test_range(self): | |
self.assertEqual(range(3), [0, 1, 2]) | |
self.assertEqual(range(1, 5), [1, 2, 3, 4]) | |
self.assertEqual(range(0), []) | |
self.assertEqual(range(-3), []) | |
self.assertEqual(range(1, 10, 3), [1, 4, 7]) | |
self.assertEqual(range(5, -5, -3), [5, 2, -1, -4]) | |
# Now test range() with longs | |
self.assertEqual(range(-2**100), []) | |
self.assertEqual(range(0, -2**100), []) | |
self.assertEqual(range(0, 2**100, -1), []) | |
self.assertEqual(range(0, 2**100, -1), []) | |
a = long(10 * sys.maxint) | |
b = long(100 * sys.maxint) | |
c = long(50 * sys.maxint) | |
self.assertEqual(range(a, a+2), [a, a+1]) | |
self.assertEqual(range(a+2, a, -1L), [a+2, a+1]) | |
self.assertEqual(range(a+4, a, -2), [a+4, a+2]) | |
seq = range(a, b, c) | |
self.assertIn(a, seq) | |
self.assertNotIn(b, seq) | |
self.assertEqual(len(seq), 2) | |
seq = range(b, a, -c) | |
self.assertIn(b, seq) | |
self.assertNotIn(a, seq) | |
self.assertEqual(len(seq), 2) | |
seq = range(-a, -b, -c) | |
self.assertIn(-a, seq) | |
self.assertNotIn(-b, seq) | |
self.assertEqual(len(seq), 2) | |
self.assertRaises(TypeError, range) | |
self.assertRaises(TypeError, range, 1, 2, 3, 4) | |
self.assertRaises(ValueError, range, 1, 2, 0) | |
self.assertRaises(ValueError, range, a, a + 1, long(0)) | |
class badzero(int): | |
def __cmp__(self, other): | |
raise RuntimeError | |
__hash__ = None # Invalid cmp makes this unhashable | |
self.assertRaises(RuntimeError, range, a, a + 1, badzero(1)) | |
# Reject floats. | |
self.assertRaises(TypeError, range, 1., 1., 1.) | |
self.assertRaises(TypeError, range, 1e100, 1e101, 1e101) | |
self.assertRaises(TypeError, range, 0, "spam") | |
self.assertRaises(TypeError, range, 0, 42, "spam") | |
self.assertRaises(OverflowError, range, -sys.maxint, sys.maxint) | |
self.assertRaises(OverflowError, range, 0, 2*sys.maxint) | |
bignum = 2*sys.maxint | |
smallnum = 42 | |
# Old-style user-defined class with __int__ method | |
class I0: | |
def __init__(self, n): | |
self.n = int(n) | |
def __int__(self): | |
return self.n | |
self.assertEqual(range(I0(bignum), I0(bignum + 1)), [bignum]) | |
self.assertEqual(range(I0(smallnum), I0(smallnum + 1)), [smallnum]) | |
# New-style user-defined class with __int__ method | |
class I1(object): | |
def __init__(self, n): | |
self.n = int(n) | |
def __int__(self): | |
return self.n | |
self.assertEqual(range(I1(bignum), I1(bignum + 1)), [bignum]) | |
self.assertEqual(range(I1(smallnum), I1(smallnum + 1)), [smallnum]) | |
# New-style user-defined class with failing __int__ method | |
class IX(object): | |
def __int__(self): | |
raise RuntimeError | |
self.assertRaises(RuntimeError, range, IX()) | |
# New-style user-defined class with invalid __int__ method | |
class IN(object): | |
def __int__(self): | |
return "not a number" | |
self.assertRaises(TypeError, range, IN()) | |
# Exercise various combinations of bad arguments, to check | |
# refcounting logic | |
self.assertRaises(TypeError, range, 0.0) | |
self.assertRaises(TypeError, range, 0, 0.0) | |
self.assertRaises(TypeError, range, 0.0, 0) | |
self.assertRaises(TypeError, range, 0.0, 0.0) | |
self.assertRaises(TypeError, range, 0, 0, 1.0) | |
self.assertRaises(TypeError, range, 0, 0.0, 1) | |
self.assertRaises(TypeError, range, 0, 0.0, 1.0) | |
self.assertRaises(TypeError, range, 0.0, 0, 1) | |
self.assertRaises(TypeError, range, 0.0, 0, 1.0) | |
self.assertRaises(TypeError, range, 0.0, 0.0, 1) | |
self.assertRaises(TypeError, range, 0.0, 0.0, 1.0) | |
def test_input_and_raw_input(self): | |
self.write_testfile() | |
fp = open(TESTFN, 'r') | |
savestdin = sys.stdin | |
savestdout = sys.stdout # Eats the echo | |
try: | |
sys.stdin = fp | |
sys.stdout = BitBucket() | |
self.assertEqual(input(), 2) | |
self.assertEqual(input('testing\n'), 2) | |
self.assertEqual(raw_input(), 'The quick brown fox jumps over the lazy dog.') | |
self.assertEqual(raw_input('testing\n'), 'Dear John') | |
# SF 1535165: don't segfault on closed stdin | |
# sys.stdout must be a regular file for triggering | |
sys.stdout = savestdout | |
sys.stdin.close() | |
self.assertRaises(ValueError, input) | |
sys.stdout = BitBucket() | |
sys.stdin = cStringIO.StringIO("NULL\0") | |
self.assertRaises(TypeError, input, 42, 42) | |
sys.stdin = cStringIO.StringIO(" 'whitespace'") | |
self.assertEqual(input(), 'whitespace') | |
sys.stdin = cStringIO.StringIO() | |
self.assertRaises(EOFError, input) | |
# SF 876178: make sure input() respect future options. | |
sys.stdin = cStringIO.StringIO('1/2') | |
sys.stdout = cStringIO.StringIO() | |
exec compile('print input()', 'test_builtin_tmp', 'exec') | |
sys.stdin.seek(0, 0) | |
exec compile('from __future__ import division;print input()', | |
'test_builtin_tmp', 'exec') | |
sys.stdin.seek(0, 0) | |
exec compile('print input()', 'test_builtin_tmp', 'exec') | |
# The result we expect depends on whether new division semantics | |
# are already in effect. | |
if 1/2 == 0: | |
# This test was compiled with old semantics. | |
expected = ['0', '0.5', '0'] | |
else: | |
# This test was compiled with new semantics (e.g., -Qnew | |
# was given on the command line. | |
expected = ['0.5', '0.5', '0.5'] | |
self.assertEqual(sys.stdout.getvalue().splitlines(), expected) | |
del sys.stdout | |
self.assertRaises(RuntimeError, input, 'prompt') | |
del sys.stdin | |
self.assertRaises(RuntimeError, input, 'prompt') | |
finally: | |
sys.stdin = savestdin | |
sys.stdout = savestdout | |
fp.close() | |
unlink(TESTFN) | |
def test_reduce(self): | |
add = lambda x, y: x+y | |
self.assertEqual(reduce(add, ['a', 'b', 'c'], ''), 'abc') | |
self.assertEqual( | |
reduce(add, [['a', 'c'], [], ['d', 'w']], []), | |
['a','c','d','w'] | |
) | |
self.assertEqual(reduce(lambda x, y: x*y, range(2,8), 1), 5040) | |
self.assertEqual( | |
reduce(lambda x, y: x*y, range(2,21), 1L), | |
2432902008176640000L | |
) | |
self.assertEqual(reduce(add, Squares(10)), 285) | |
self.assertEqual(reduce(add, Squares(10), 0), 285) | |
self.assertEqual(reduce(add, Squares(0), 0), 0) | |
self.assertRaises(TypeError, reduce) | |
self.assertRaises(TypeError, reduce, 42) | |
self.assertRaises(TypeError, reduce, 42, 42) | |
self.assertRaises(TypeError, reduce, 42, 42, 42) | |
self.assertRaises(TypeError, reduce, None, range(5)) | |
self.assertRaises(TypeError, reduce, add, 42) | |
self.assertEqual(reduce(42, "1"), "1") # func is never called with one item | |
self.assertEqual(reduce(42, "", "1"), "1") # func is never called with one item | |
self.assertRaises(TypeError, reduce, 42, (42, 42)) | |
self.assertRaises(TypeError, reduce, add, []) # arg 2 must not be empty sequence with no initial value | |
self.assertRaises(TypeError, reduce, add, "") | |
self.assertRaises(TypeError, reduce, add, ()) | |
self.assertEqual(reduce(add, [], None), None) | |
self.assertEqual(reduce(add, [], 42), 42) | |
class BadSeq: | |
def __getitem__(self, index): | |
raise ValueError | |
self.assertRaises(ValueError, reduce, 42, BadSeq()) | |
def test_reload(self): | |
import marshal | |
reload(marshal) | |
import string | |
reload(string) | |
## import sys | |
## self.assertRaises(ImportError, reload, sys) | |
def test_repr(self): | |
self.assertEqual(repr(''), '\'\'') | |
self.assertEqual(repr(0), '0') | |
self.assertEqual(repr(0L), '0L') | |
self.assertEqual(repr(()), '()') | |
self.assertEqual(repr([]), '[]') | |
self.assertEqual(repr({}), '{}') | |
a = [] | |
a.append(a) | |
self.assertEqual(repr(a), '[[...]]') | |
a = {} | |
a[0] = a | |
self.assertEqual(repr(a), '{0: {...}}') | |
def test_round(self): | |
self.assertEqual(round(0.0), 0.0) | |
self.assertEqual(type(round(0.0)), float) # Will be int in 3.0. | |
self.assertEqual(round(1.0), 1.0) | |
self.assertEqual(round(10.0), 10.0) | |
self.assertEqual(round(1000000000.0), 1000000000.0) | |
self.assertEqual(round(1e20), 1e20) | |
self.assertEqual(round(-1.0), -1.0) | |
self.assertEqual(round(-10.0), -10.0) | |
self.assertEqual(round(-1000000000.0), -1000000000.0) | |
self.assertEqual(round(-1e20), -1e20) | |
self.assertEqual(round(0.1), 0.0) | |
self.assertEqual(round(1.1), 1.0) | |
self.assertEqual(round(10.1), 10.0) | |
self.assertEqual(round(1000000000.1), 1000000000.0) | |
self.assertEqual(round(-1.1), -1.0) | |
self.assertEqual(round(-10.1), -10.0) | |
self.assertEqual(round(-1000000000.1), -1000000000.0) | |
self.assertEqual(round(0.9), 1.0) | |
self.assertEqual(round(9.9), 10.0) | |
self.assertEqual(round(999999999.9), 1000000000.0) | |
self.assertEqual(round(-0.9), -1.0) | |
self.assertEqual(round(-9.9), -10.0) | |
self.assertEqual(round(-999999999.9), -1000000000.0) | |
self.assertEqual(round(-8.0, -1), -10.0) | |
self.assertEqual(type(round(-8.0, -1)), float) | |
self.assertEqual(type(round(-8.0, 0)), float) | |
self.assertEqual(type(round(-8.0, 1)), float) | |
# Check half rounding behaviour. | |
self.assertEqual(round(5.5), 6) | |
self.assertEqual(round(6.5), 7) | |
self.assertEqual(round(-5.5), -6) | |
self.assertEqual(round(-6.5), -7) | |
# Check behavior on ints | |
self.assertEqual(round(0), 0) | |
self.assertEqual(round(8), 8) | |
self.assertEqual(round(-8), -8) | |
self.assertEqual(type(round(0)), float) # Will be int in 3.0. | |
self.assertEqual(type(round(-8, -1)), float) | |
self.assertEqual(type(round(-8, 0)), float) | |
self.assertEqual(type(round(-8, 1)), float) | |
# test new kwargs | |
self.assertEqual(round(number=-8.0, ndigits=-1), -10.0) | |
self.assertRaises(TypeError, round) | |
# test generic rounding delegation for reals | |
class TestRound(object): | |
def __float__(self): | |
return 23.0 | |
class TestNoRound(object): | |
pass | |
self.assertEqual(round(TestRound()), 23) | |
self.assertRaises(TypeError, round, 1, 2, 3) | |
self.assertRaises(TypeError, round, TestNoRound()) | |
t = TestNoRound() | |
t.__float__ = lambda *args: args | |
self.assertRaises(TypeError, round, t) | |
self.assertRaises(TypeError, round, t, 0) | |
# Some versions of glibc for alpha have a bug that affects | |
# float -> integer rounding (floor, ceil, rint, round) for | |
# values in the range [2**52, 2**53). See: | |
# | |
# http://sources.redhat.com/bugzilla/show_bug.cgi?id=5350 | |
# | |
# We skip this test on Linux/alpha if it would fail. | |
linux_alpha = (platform.system().startswith('Linux') and | |
platform.machine().startswith('alpha')) | |
system_round_bug = round(5e15+1) != 5e15+1 | |
@unittest.skipIf(linux_alpha and system_round_bug, | |
"test will fail; failure is probably due to a " | |
"buggy system round function") | |
def test_round_large(self): | |
# Issue #1869: integral floats should remain unchanged | |
self.assertEqual(round(5e15-1), 5e15-1) | |
self.assertEqual(round(5e15), 5e15) | |
self.assertEqual(round(5e15+1), 5e15+1) | |
self.assertEqual(round(5e15+2), 5e15+2) | |
self.assertEqual(round(5e15+3), 5e15+3) | |
def test_setattr(self): | |
setattr(sys, 'spam', 1) | |
self.assertEqual(sys.spam, 1) | |
self.assertRaises(TypeError, setattr, sys, 1, 'spam') | |
self.assertRaises(TypeError, setattr) | |
def test_sum(self): | |
self.assertEqual(sum([]), 0) | |
self.assertEqual(sum(range(2,8)), 27) | |
self.assertEqual(sum(iter(range(2,8))), 27) | |
self.assertEqual(sum(Squares(10)), 285) | |
self.assertEqual(sum(iter(Squares(10))), 285) | |
self.assertEqual(sum([[1], [2], [3]], []), [1, 2, 3]) | |
self.assertRaises(TypeError, sum) | |
self.assertRaises(TypeError, sum, 42) | |
self.assertRaises(TypeError, sum, ['a', 'b', 'c']) | |
self.assertRaises(TypeError, sum, ['a', 'b', 'c'], '') | |
self.assertRaises(TypeError, sum, [[1], [2], [3]]) | |
self.assertRaises(TypeError, sum, [{2:3}]) | |
self.assertRaises(TypeError, sum, [{2:3}]*2, {2:3}) | |
class BadSeq: | |
def __getitem__(self, index): | |
raise ValueError | |
self.assertRaises(ValueError, sum, BadSeq()) | |
empty = [] | |
sum(([x] for x in range(10)), empty) | |
self.assertEqual(empty, []) | |
def test_type(self): | |
self.assertEqual(type(''), type('123')) | |
self.assertNotEqual(type(''), type(())) | |
def test_unichr(self): | |
if have_unicode: | |
self.assertEqual(unichr(32), unicode(' ')) | |
self.assertEqual(unichr(65), unicode('A')) | |
self.assertEqual(unichr(97), unicode('a')) | |
self.assertEqual( | |
unichr(sys.maxunicode), | |
unicode('\\U%08x' % (sys.maxunicode), 'unicode-escape') | |
) | |
self.assertRaises(ValueError, unichr, sys.maxunicode+1) | |
self.assertRaises(TypeError, unichr) | |
self.assertRaises((OverflowError, ValueError), unichr, 2**32) | |
# We don't want self in vars(), so these are static methods | |
@staticmethod | |
def get_vars_f0(): | |
return vars() | |
@staticmethod | |
def get_vars_f2(): | |
BuiltinTest.get_vars_f0() | |
a = 1 | |
b = 2 | |
return vars() | |
class C_get_vars(object): | |
def getDict(self): | |
return {'a':2} | |
__dict__ = property(fget=getDict) | |
def test_vars(self): | |
self.assertEqual(set(vars()), set(dir())) | |
import sys | |
self.assertEqual(set(vars(sys)), set(dir(sys))) | |
self.assertEqual(self.get_vars_f0(), {}) | |
self.assertEqual(self.get_vars_f2(), {'a': 1, 'b': 2}) | |
self.assertRaises(TypeError, vars, 42, 42) | |
self.assertRaises(TypeError, vars, 42) | |
self.assertEqual(vars(self.C_get_vars()), {'a':2}) | |
def test_zip(self): | |
a = (1, 2, 3) | |
b = (4, 5, 6) | |
t = [(1, 4), (2, 5), (3, 6)] | |
self.assertEqual(zip(a, b), t) | |
b = [4, 5, 6] | |
self.assertEqual(zip(a, b), t) | |
b = (4, 5, 6, 7) | |
self.assertEqual(zip(a, b), t) | |
class I: | |
def __getitem__(self, i): | |
if i < 0 or i > 2: raise IndexError | |
return i + 4 | |
self.assertEqual(zip(a, I()), t) | |
self.assertEqual(zip(), []) | |
self.assertEqual(zip(*[]), []) | |
self.assertRaises(TypeError, zip, None) | |
class G: | |
pass | |
self.assertRaises(TypeError, zip, a, G()) | |
# Make sure zip doesn't try to allocate a billion elements for the | |
# result list when one of its arguments doesn't say how long it is. | |
# A MemoryError is the most likely failure mode. | |
class SequenceWithoutALength: | |
def __getitem__(self, i): | |
if i == 5: | |
raise IndexError | |
else: | |
return i | |
self.assertEqual( | |
zip(SequenceWithoutALength(), xrange(2**30)), | |
list(enumerate(range(5))) | |
) | |
class BadSeq: | |
def __getitem__(self, i): | |
if i == 5: | |
raise ValueError | |
else: | |
return i | |
self.assertRaises(ValueError, zip, BadSeq(), BadSeq()) | |
def test_format(self): | |
# Test the basic machinery of the format() builtin. Don't test | |
# the specifics of the various formatters | |
self.assertEqual(format(3, ''), '3') | |
# Returns some classes to use for various tests. There's | |
# an old-style version, and a new-style version | |
def classes_new(): | |
class A(object): | |
def __init__(self, x): | |
self.x = x | |
def __format__(self, format_spec): | |
return str(self.x) + format_spec | |
class DerivedFromA(A): | |
pass | |
class Simple(object): pass | |
class DerivedFromSimple(Simple): | |
def __init__(self, x): | |
self.x = x | |
def __format__(self, format_spec): | |
return str(self.x) + format_spec | |
class DerivedFromSimple2(DerivedFromSimple): pass | |
return A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2 | |
# In 3.0, classes_classic has the same meaning as classes_new | |
def classes_classic(): | |
class A: | |
def __init__(self, x): | |
self.x = x | |
def __format__(self, format_spec): | |
return str(self.x) + format_spec | |
class DerivedFromA(A): | |
pass | |
class Simple: pass | |
class DerivedFromSimple(Simple): | |
def __init__(self, x): | |
self.x = x | |
def __format__(self, format_spec): | |
return str(self.x) + format_spec | |
class DerivedFromSimple2(DerivedFromSimple): pass | |
return A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2 | |
def class_test(A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2): | |
self.assertEqual(format(A(3), 'spec'), '3spec') | |
self.assertEqual(format(DerivedFromA(4), 'spec'), '4spec') | |
self.assertEqual(format(DerivedFromSimple(5), 'abc'), '5abc') | |
self.assertEqual(format(DerivedFromSimple2(10), 'abcdef'), | |
'10abcdef') | |
class_test(*classes_new()) | |
class_test(*classes_classic()) | |
def empty_format_spec(value): | |
# test that: | |
# format(x, '') == str(x) | |
# format(x) == str(x) | |
self.assertEqual(format(value, ""), str(value)) | |
self.assertEqual(format(value), str(value)) | |
# for builtin types, format(x, "") == str(x) | |
empty_format_spec(17**13) | |
empty_format_spec(1.0) | |
empty_format_spec(3.1415e104) | |
empty_format_spec(-3.1415e104) | |
empty_format_spec(3.1415e-104) | |
empty_format_spec(-3.1415e-104) | |
empty_format_spec(object) | |
empty_format_spec(None) | |
# TypeError because self.__format__ returns the wrong type | |
class BadFormatResult: | |
def __format__(self, format_spec): | |
return 1.0 | |
self.assertRaises(TypeError, format, BadFormatResult(), "") | |
# TypeError because format_spec is not unicode or str | |
self.assertRaises(TypeError, format, object(), 4) | |
self.assertRaises(TypeError, format, object(), object()) | |
# tests for object.__format__ really belong elsewhere, but | |
# there's no good place to put them | |
x = object().__format__('') | |
self.assertTrue(x.startswith('<object object at')) | |
# first argument to object.__format__ must be string | |
self.assertRaises(TypeError, object().__format__, 3) | |
self.assertRaises(TypeError, object().__format__, object()) | |
self.assertRaises(TypeError, object().__format__, None) | |
# -------------------------------------------------------------------- | |
# Issue #7994: object.__format__ with a non-empty format string is | |
# pending deprecated | |
def test_deprecated_format_string(obj, fmt_str, should_raise_warning): | |
with warnings.catch_warnings(record=True) as w: | |
warnings.simplefilter("always", PendingDeprecationWarning) | |
format(obj, fmt_str) | |
if should_raise_warning: | |
self.assertEqual(len(w), 1) | |
self.assertIsInstance(w[0].message, PendingDeprecationWarning) | |
self.assertIn('object.__format__ with a non-empty format ' | |
'string', str(w[0].message)) | |
else: | |
self.assertEqual(len(w), 0) | |
fmt_strs = ['', 's', u'', u's'] | |
class A: | |
def __format__(self, fmt_str): | |
return format('', fmt_str) | |
for fmt_str in fmt_strs: | |
test_deprecated_format_string(A(), fmt_str, False) | |
class B: | |
pass | |
class C(object): | |
pass | |
for cls in [object, B, C]: | |
for fmt_str in fmt_strs: | |
test_deprecated_format_string(cls(), fmt_str, len(fmt_str) != 0) | |
# -------------------------------------------------------------------- | |
# make sure we can take a subclass of str as a format spec | |
class DerivedFromStr(str): pass | |
self.assertEqual(format(0, DerivedFromStr('10')), ' 0') | |
def test_bin(self): | |
self.assertEqual(bin(0), '0b0') | |
self.assertEqual(bin(1), '0b1') | |
self.assertEqual(bin(-1), '-0b1') | |
self.assertEqual(bin(2**65), '0b1' + '0' * 65) | |
self.assertEqual(bin(2**65-1), '0b' + '1' * 65) | |
self.assertEqual(bin(-(2**65)), '-0b1' + '0' * 65) | |
self.assertEqual(bin(-(2**65-1)), '-0b' + '1' * 65) | |
def test_bytearray_translate(self): | |
x = bytearray("abc") | |
self.assertRaises(ValueError, x.translate, "1", 1) | |
self.assertRaises(TypeError, x.translate, "1"*256, 1) | |
class TestSorted(unittest.TestCase): | |
def test_basic(self): | |
data = range(100) | |
copy = data[:] | |
random.shuffle(copy) | |
self.assertEqual(data, sorted(copy)) | |
self.assertNotEqual(data, copy) | |
data.reverse() | |
random.shuffle(copy) | |
self.assertEqual(data, sorted(copy, cmp=lambda x, y: cmp(y,x))) | |
self.assertNotEqual(data, copy) | |
random.shuffle(copy) | |
self.assertEqual(data, sorted(copy, key=lambda x: -x)) | |
self.assertNotEqual(data, copy) | |
random.shuffle(copy) | |
self.assertEqual(data, sorted(copy, reverse=1)) | |
self.assertNotEqual(data, copy) | |
def test_inputtypes(self): | |
s = 'abracadabra' | |
types = [list, tuple] | |
if have_unicode: | |
types.insert(0, unicode) | |
for T in types: | |
self.assertEqual(sorted(s), sorted(T(s))) | |
s = ''.join(dict.fromkeys(s).keys()) # unique letters only | |
types = [set, frozenset, list, tuple, dict.fromkeys] | |
if have_unicode: | |
types.insert(0, unicode) | |
for T in types: | |
self.assertEqual(sorted(s), sorted(T(s))) | |
def test_baddecorator(self): | |
data = 'The quick Brown fox Jumped over The lazy Dog'.split() | |
self.assertRaises(TypeError, sorted, data, None, lambda x,y: 0) | |
def _run_unittest(*args): | |
with check_py3k_warnings( | |
(".+ not supported in 3.x", DeprecationWarning), | |
(".+ is renamed to imp.reload", DeprecationWarning), | |
("classic int division", DeprecationWarning)): | |
run_unittest(*args) | |
def test_main(verbose=None): | |
test_classes = (BuiltinTest, TestSorted) | |
_run_unittest(*test_classes) | |
# verify reference counting | |
if verbose and hasattr(sys, "gettotalrefcount"): | |
import gc | |
counts = [None] * 5 | |
for i in xrange(len(counts)): | |
_run_unittest(*test_classes) | |
gc.collect() | |
counts[i] = sys.gettotalrefcount() | |
print counts | |
if __name__ == "__main__": | |
test_main(verbose=True) |