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cpython/Lib/test/test_builtin.py
Amaury Forgeot d'Arc 9ed77358d6 Issue2221: in Idle, exec('xx') raised a SystemError('error return without exception set') 
instead of the expected NameError

This happens when sys.stdout is redirected to something that cannot flush().
the flush_io() function must be exception-neutral: don't raise, and don't clear exceptions.

Next step: exec() is not supposed to flush sys.stdout...
2008-04-04 23:25:27 +00:00

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# Python test set -- built-in functions
import test.test_support, unittest
from test.test_support import fcmp, TESTFN, unlink, run_unittest, \
run_with_locale
from operator import neg
import sys, warnings, random, collections, io, fractions
warnings.filterwarnings("ignore", "hex../oct.. of negative int",
FutureWarning, __name__)
warnings.filterwarnings("ignore", "integer argument expected",
DeprecationWarning, "unittest")
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
test_conv_no_sign = [
('0', 0),
('1', 1),
('9', 9),
('10', 10),
('99', 99),
('100', 100),
('314', 314),
(' 314', 314),
('314 ', 314),
(' \t\t 314 \t\t ', 314),
(repr(sys.maxsize), sys.maxsize),
(' 1x', ValueError),
(' 1 ', 1),
(' 1\02 ', ValueError),
('', ValueError),
(' ', ValueError),
(' \t\t ', ValueError),
(str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314),
(chr(0x200), ValueError),
]
test_conv_sign = [
('0', 0),
('1', 1),
('9', 9),
('10', 10),
('99', 99),
('100', 100),
('314', 314),
(' 314', ValueError),
('314 ', 314),
(' \t\t 314 \t\t ', ValueError),
(repr(sys.maxsize), sys.maxsize),
(' 1x', ValueError),
(' 1 ', ValueError),
(' 1\02 ', ValueError),
('', ValueError),
(' ', ValueError),
(' \t\t ', ValueError),
(str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314),
(chr(0x200), ValueError),
]
class TestFailingBool:
def __bool__(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.maxsize-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(0), 0)
self.assertEqual(abs(1234), 1234)
self.assertEqual(abs(-1234), 1234)
# str
self.assertRaises(TypeError, abs, 'a')
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.maxsize-1
self.assert_(isinstance(x, int))
self.assertEqual(-x, sys.maxsize+1)
# XXX(nnorwitz): This test case for callable should probably be removed.
def test_callable(self):
self.assert_(hasattr(len, '__call__'))
def f(): pass
self.assert_(hasattr(f, '__call__'))
class C:
def meth(self): pass
self.assert_(hasattr(C, '__call__'))
x = C()
self.assert_(hasattr(x.meth, '__call__'))
self.assert_(not hasattr(x, '__call__'))
class D(C):
def __call__(self): pass
y = D()
self.assert_(hasattr(y, '__call__'))
y()
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, 1<<24)
self.assertEqual(chr(sys.maxunicode),
str(('\\U%08x' % (sys.maxunicode)).encode("ascii"),
'unicode-escape'))
self.assertRaises(TypeError, chr)
self.assertEqual(chr(0x0000FFFF), "\U0000FFFF")
self.assertEqual(chr(0x00010000), "\U00010000")
self.assertEqual(chr(0x00010001), "\U00010001")
self.assertEqual(chr(0x000FFFFE), "\U000FFFFE")
self.assertEqual(chr(0x000FFFFF), "\U000FFFFF")
self.assertEqual(chr(0x00100000), "\U00100000")
self.assertEqual(chr(0x00100001), "\U00100001")
self.assertEqual(chr(0x0010FFFE), "\U0010FFFE")
self.assertEqual(chr(0x0010FFFF), "\U0010FFFF")
self.assertRaises(ValueError, chr, -1)
self.assertRaises(ValueError, chr, 0x00110000)
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 collections 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_compile(self):
compile('print(1)\n', '', 'exec')
bom = b'\xef\xbb\xbf'
compile(bom + b'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')
compile('print("\xe5")\n', '', 'exec')
self.assertRaises(TypeError, compile, chr(0), 'f', 'exec')
self.assertRaises(ValueError, compile, str('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.assert_('local_var' in dir())
# dir(module)
import sys
self.assert_('exit' in 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.assert_("strip" in dir(str))
self.assert_("__mro__" not in dir(str))
# dir(obj)
class Foo(object):
def __init__(self):
self.x = 7
self.y = 8
self.z = 9
f = Foo()
self.assert_("y" in dir(f))
# dir(obj_no__dict__)
class Foo(object):
__slots__ = []
f = Foo()
self.assert_("__repr__" in 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.assert_("__repr__" not in dir(f))
self.assert_("bar" in dir(f))
# dir(obj_using __dir__)
class Foo(object):
def __dir__(self):
return ["kan", "ga", "roo"]
f = Foo()
self.assert_(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)
# dir(traceback)
try:
raise IndexError
except:
self.assertEqual(len(dir(sys.exc_info()[2])), 4)
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(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(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(-sys.maxsize-1, -1),
(sys.maxsize+1, 0))
self.assert_(not fcmp(divmod(3.25, 1.0), (3.0, 0.25)))
self.assert_(not fcmp(divmod(-3.25, 1.0), (-4.0, 0.75)))
self.assert_(not fcmp(divmod(3.25, -1.0), (-4.0, -0.75)))
self.assert_(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)
globals = {'a': 1, 'b': 2}
locals = {'b': 200, 'c': 300}
bom = b'\xef\xbb\xbf'
self.assertEqual(eval(bom + b'a', globals, locals), 1)
self.assertEqual(eval('"\xe5"', globals), "\xe5")
self.assertRaises(TypeError, eval)
self.assertRaises(TypeError, eval, ())
self.assertRaises(SyntaxError, eval, bom[:2] + b'a')
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, collections.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 1 # used to be 'a' but that's no longer an error
self.assertRaises(TypeError, eval, 'dir()', globals(), C())
def test_exec(self):
g = {}
exec('z = 1', g)
if '__builtins__' in g:
del g['__builtins__']
self.assertEqual(g, {'z': 1})
exec('z = 1+1', g)
if '__builtins__' in g:
del g['__builtins__']
self.assertEqual(g, {'z': 2})
g = {}
l = {}
import warnings
warnings.filterwarnings("ignore", "global statement", module="<string>")
exec('global a; a = 1; b = 2', g, l)
if '__builtins__' in g:
del g['__builtins__']
if '__builtins__' in l:
del l['__builtins__']
self.assertEqual((g, l), ({'a': 1}, {'b': 2}))
def test_exec_redirected(self):
savestdout = sys.stdout
sys.stdout = None # Whatever that cannot flush()
try:
# Used to raise SystemError('error return without exception set')
exec('a')
except NameError:
pass
finally:
sys.stdout = savestdout
def test_filter(self):
self.assertEqual(list(filter(lambda c: 'a' <= c <= 'z', 'Hello World')), list('elloorld'))
self.assertEqual(list(filter(None, [1, 'hello', [], [3], '', None, 9, 0])), [1, 'hello', [3], 9])
self.assertEqual(list(filter(lambda x: x > 0, [1, -3, 9, 0, 2])), [1, 9, 2])
self.assertEqual(list(filter(None, Squares(10))), [1, 4, 9, 16, 25, 36, 49, 64, 81])
self.assertEqual(list(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, list, filter(lambda x: x, BadSeq()))
def badfunc():
pass
self.assertRaises(TypeError, list, filter(badfunc, range(5)))
# test bltinmodule.c::filtertuple()
self.assertEqual(list(filter(None, (1, 2))), [1, 2])
self.assertEqual(list(filter(lambda x: x>=3, (1, 2, 3, 4))), [3, 4])
self.assertRaises(TypeError, list, filter(42, (1, 2)))
def test_float(self):
self.assertEqual(float(3.14), 3.14)
self.assertEqual(float(314), 314.0)
self.assertEqual(float(314), 314.0)
self.assertEqual(float(" 3.14 "), 3.14)
self.assertRaises(ValueError, float, " 0x3.1 ")
self.assertRaises(ValueError, float, " -0x3.p-1 ")
self.assertEqual(float(str(b" \u0663.\u0661\u0664 ",'raw-unicode-escape')), 3.14)
self.assertEqual(float("1"*10000), 1e10000) # Inf on both sides
@run_with_locale('LC_NUMERIC', 'fr_FR', 'de_DE')
def test_float_with_comma(self):
# set locale to something that doesn't use '.' for the decimal point
# float must not accept the locale specific decimal point but
# it still has to accept the normal python syntac
import locale
if not locale.localeconv()['decimal_point'] == ',':
return
self.assertEqual(float(" 3.14 "), 3.14)
self.assertEqual(float("+3.14 "), 3.14)
self.assertEqual(float("-3.14 "), -3.14)
self.assertEqual(float(".14 "), .14)
self.assertEqual(float("3. "), 3.0)
self.assertEqual(float("3.e3 "), 3000.0)
self.assertEqual(float("3.2e3 "), 3200.0)
self.assertEqual(float("2.5e-1 "), 0.25)
self.assertEqual(float("5e-1"), 0.5)
self.assertRaises(ValueError, float, " 3,14 ")
self.assertRaises(ValueError, float, " +3,14 ")
self.assertRaises(ValueError, float, " -3,14 ")
self.assertRaises(ValueError, float, " 0x3.1 ")
self.assertRaises(ValueError, float, " -0x3.p-1 ")
self.assertEqual(float(" 25.e-1 "), 2.5)
self.assertEqual(fcmp(float(" .25e-1 "), .025), 0)
def test_floatconversion(self):
# Make sure that calls to __float__() work properly
class Foo0:
def __float__(self):
return 42.
class Foo1(object):
def __float__(self):
return 42.
class Foo2(float):
def __float__(self):
return 42.
class Foo3(float):
def __new__(cls, value=0.):
return float.__new__(cls, 2*value)
def __float__(self):
return self
class Foo4(float):
def __float__(self):
return 42
self.assertAlmostEqual(float(Foo0()), 42.)
self.assertAlmostEqual(float(Foo1()), 42.)
self.assertAlmostEqual(float(Foo2()), 42.)
self.assertAlmostEqual(float(Foo3(21)), 42.)
self.assertRaises(TypeError, float, Foo4(42))
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.assert_(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)
# 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_floatasratio(self):
for f, ratio in [
(0.875, (7, 8)),
(-0.875, (-7, 8)),
(0.0, (0, 1)),
(11.5, (23, 2)),
]:
self.assertEqual(f.as_integer_ratio(), ratio)
for i in range(10000):
f = random.random()
f *= 10 ** random.randint(-100, 100)
n, d = f.as_integer_ratio()
self.assertEqual(float(n).__truediv__(d), f)
R = fractions.Fraction
self.assertEqual(R(0, 1),
R(*float(0.0).as_integer_ratio()))
self.assertEqual(R(5, 2),
R(*float(2.5).as_integer_ratio()))
self.assertEqual(R(1, 2),
R(*float(0.5).as_integer_ratio()))
self.assertEqual(R(4728779608739021, 2251799813685248),
R(*float(2.1).as_integer_ratio()))
self.assertEqual(R(-4728779608739021, 2251799813685248),
R(*float(-2.1).as_integer_ratio()))
self.assertEqual(R(-2100, 1),
R(*float(-2100.0).as_integer_ratio()))
self.assertRaises(OverflowError, float('inf').as_integer_ratio)
self.assertRaises(OverflowError, float('-inf').as_integer_ratio)
self.assertRaises(ValueError, float('nan').as_integer_ratio)
def test_getattr(self):
import sys
self.assert_(getattr(sys, 'stdout') is sys.stdout)
self.assertRaises(TypeError, getattr, sys, 1)
self.assertRaises(TypeError, getattr, sys, 1, "foo")
self.assertRaises(TypeError, getattr)
self.assertRaises(AttributeError, getattr, sys, chr(sys.maxunicode))
def test_hasattr(self):
import sys
self.assert_(hasattr(sys, 'stdout'))
self.assertRaises(TypeError, hasattr, sys, 1)
self.assertRaises(TypeError, hasattr)
self.assertEqual(False, hasattr(sys, chr(sys.maxunicode)))
def test_hash(self):
hash(None)
self.assertEqual(hash(1), hash(1))
self.assertEqual(hash(1), hash(1.0))
hash('spam')
self.assertEqual(hash('spam'), hash(b'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.assertEquals(type(hash(X())), int)
class Y(object):
def __hash__(self):
return 2**100
self.assertEquals(type(hash(Y())), int)
class Z(int):
def __hash__(self):
return self
self.assertEquals(hash(Z(42)), hash(42))
def test_hex(self):
self.assertEqual(hex(16), '0x10')
self.assertEqual(hex(16), '0x10')
self.assertEqual(hex(-16), '-0x10')
self.assertEqual(hex(-16), '-0x10')
self.assertRaises(TypeError, hex, {})
def test_id(self):
id(None)
id(1)
id(1)
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, alphabetized as if it were raw_input
def test_int(self):
self.assertEqual(int(314), 314)
self.assertEqual(int(3.14), 3)
self.assertEqual(int(314), 314)
# Check that conversion from float truncates towards zero
self.assertEqual(int(-3.14), -3)
self.assertEqual(int(3.9), 3)
self.assertEqual(int(-3.9), -3)
self.assertEqual(int(3.5), 3)
self.assertEqual(int(-3.5), -3)
# Different base:
self.assertEqual(int("10",16), 16)
# Test conversion from strings and various anomalies
# Testing with no sign at front
for s, v in test_conv_no_sign:
for prefix in "", " ", "\t", " \t\t ":
ss = prefix + s
vv = v
try:
self.assertEqual(int(ss), vv)
except v:
pass
# No whitespaces allowed between + or - sign and the number
for s, v in test_conv_sign:
for sign in "+", "-":
for prefix in "", " ", "\t", " \t\t ":
ss = prefix + sign + s
vv = v
if sign == "-" and v is not ValueError:
vv = -v
try:
self.assertEqual(int(ss), vv)
except v:
pass
s = repr(-1-sys.maxsize)
x = int(s)
self.assertEqual(x+1, -sys.maxsize)
self.assert_(isinstance(x, int))
# should return long
self.assertEqual(int(s[1:]), sys.maxsize+1)
# should return long
x = int(1e100)
self.assert_(isinstance(x, int))
x = int(-1e100)
self.assert_(isinstance(x, int))
# SF bug 434186: 0x80000000/2 != 0x80000000>>1.
# Worked by accident in Windows release build, but failed in debug build.
# Failed in all Linux builds.
x = -1-sys.maxsize
self.assertEqual(x >> 1, x//2)
self.assertRaises(ValueError, int, '123\0')
self.assertRaises(ValueError, int, '53', 40)
# SF bug 1545497: embedded NULs were not detected with
# explicit base
self.assertRaises(ValueError, int, '123\0', 10)
self.assertRaises(ValueError, int, '123\x00 245', 20)
x = int('1' * 600)
self.assert_(isinstance(x, int))
x = int(chr(0x661) * 600)
self.assert_(isinstance(x, int))
self.assertRaises(TypeError, int, 1, 12)
# tests with base 0
self.assertRaises(ValueError, int, ' 0123 ', 0) # old octal syntax
self.assertEqual(int('000', 0), 0)
self.assertEqual(int('0o123', 0), 83)
self.assertEqual(int('0x123', 0), 291)
self.assertEqual(int('0b100', 0), 4)
self.assertEqual(int(' 0O123 ', 0), 83)
self.assertEqual(int(' 0X123 ', 0), 291)
self.assertEqual(int(' 0B100 ', 0), 4)
# without base still base 10
self.assertEqual(int('0123'), 123)
self.assertEqual(int('0123', 10), 123)
# tests with prefix and base != 0
self.assertEqual(int('0x123', 16), 291)
self.assertEqual(int('0o123', 8), 83)
self.assertEqual(int('0b100', 2), 4)
self.assertEqual(int('0X123', 16), 291)
self.assertEqual(int('0O123', 8), 83)
self.assertEqual(int('0B100', 2), 4)
# Bug 1679: "0x" is not a valid hex literal
self.assertRaises(ValueError, int, "0x", 16)
self.assertRaises(ValueError, int, "0x", 0)
# SF bug 1334662: int(string, base) wrong answers
# Various representations of 2**32 evaluated to 0
# rather than 2**32 in previous versions
self.assertEqual(int('100000000000000000000000000000000', 2), 4294967296)
self.assertEqual(int('102002022201221111211', 3), 4294967296)
self.assertEqual(int('10000000000000000', 4), 4294967296)
self.assertEqual(int('32244002423141', 5), 4294967296)
self.assertEqual(int('1550104015504', 6), 4294967296)
self.assertEqual(int('211301422354', 7), 4294967296)
self.assertEqual(int('40000000000', 8), 4294967296)
self.assertEqual(int('12068657454', 9), 4294967296)
self.assertEqual(int('4294967296', 10), 4294967296)
self.assertEqual(int('1904440554', 11), 4294967296)
self.assertEqual(int('9ba461594', 12), 4294967296)
self.assertEqual(int('535a79889', 13), 4294967296)
self.assertEqual(int('2ca5b7464', 14), 4294967296)
self.assertEqual(int('1a20dcd81', 15), 4294967296)
self.assertEqual(int('100000000', 16), 4294967296)
self.assertEqual(int('a7ffda91', 17), 4294967296)
self.assertEqual(int('704he7g4', 18), 4294967296)
self.assertEqual(int('4f5aff66', 19), 4294967296)
self.assertEqual(int('3723ai4g', 20), 4294967296)
self.assertEqual(int('281d55i4', 21), 4294967296)
self.assertEqual(int('1fj8b184', 22), 4294967296)
self.assertEqual(int('1606k7ic', 23), 4294967296)
self.assertEqual(int('mb994ag', 24), 4294967296)
self.assertEqual(int('hek2mgl', 25), 4294967296)
self.assertEqual(int('dnchbnm', 26), 4294967296)
self.assertEqual(int('b28jpdm', 27), 4294967296)
self.assertEqual(int('8pfgih4', 28), 4294967296)
self.assertEqual(int('76beigg', 29), 4294967296)
self.assertEqual(int('5qmcpqg', 30), 4294967296)
self.assertEqual(int('4q0jto4', 31), 4294967296)
self.assertEqual(int('4000000', 32), 4294967296)
self.assertEqual(int('3aokq94', 33), 4294967296)
self.assertEqual(int('2qhxjli', 34), 4294967296)
self.assertEqual(int('2br45qb', 35), 4294967296)
self.assertEqual(int('1z141z4', 36), 4294967296)
# SF bug 1334662: int(string, base) wrong answers
# Checks for proper evaluation of 2**32 + 1
self.assertEqual(int('100000000000000000000000000000001', 2), 4294967297)
self.assertEqual(int('102002022201221111212', 3), 4294967297)
self.assertEqual(int('10000000000000001', 4), 4294967297)
self.assertEqual(int('32244002423142', 5), 4294967297)
self.assertEqual(int('1550104015505', 6), 4294967297)
self.assertEqual(int('211301422355', 7), 4294967297)
self.assertEqual(int('40000000001', 8), 4294967297)
self.assertEqual(int('12068657455', 9), 4294967297)
self.assertEqual(int('4294967297', 10), 4294967297)
self.assertEqual(int('1904440555', 11), 4294967297)
self.assertEqual(int('9ba461595', 12), 4294967297)
self.assertEqual(int('535a7988a', 13), 4294967297)
self.assertEqual(int('2ca5b7465', 14), 4294967297)
self.assertEqual(int('1a20dcd82', 15), 4294967297)
self.assertEqual(int('100000001', 16), 4294967297)
self.assertEqual(int('a7ffda92', 17), 4294967297)
self.assertEqual(int('704he7g5', 18), 4294967297)
self.assertEqual(int('4f5aff67', 19), 4294967297)
self.assertEqual(int('3723ai4h', 20), 4294967297)
self.assertEqual(int('281d55i5', 21), 4294967297)
self.assertEqual(int('1fj8b185', 22), 4294967297)
self.assertEqual(int('1606k7id', 23), 4294967297)
self.assertEqual(int('mb994ah', 24), 4294967297)
self.assertEqual(int('hek2mgm', 25), 4294967297)
self.assertEqual(int('dnchbnn', 26), 4294967297)
self.assertEqual(int('b28jpdn', 27), 4294967297)
self.assertEqual(int('8pfgih5', 28), 4294967297)
self.assertEqual(int('76beigh', 29), 4294967297)
self.assertEqual(int('5qmcpqh', 30), 4294967297)
self.assertEqual(int('4q0jto5', 31), 4294967297)
self.assertEqual(int('4000001', 32), 4294967297)
self.assertEqual(int('3aokq95', 33), 4294967297)
self.assertEqual(int('2qhxjlj', 34), 4294967297)
self.assertEqual(int('2br45qc', 35), 4294967297)
self.assertEqual(int('1z141z5', 36), 4294967297)
def test_intconversion(self):
# Test __int__()
class ClassicMissingMethods:
pass
self.assertRaises(TypeError, int, ClassicMissingMethods())
class MissingMethods(object):
pass
self.assertRaises(TypeError, int, MissingMethods())
class Foo0:
def __int__(self):
return 42
class Foo1(object):
def __int__(self):
return 42
class Foo2(int):
def __int__(self):
return 42
class Foo3(int):
def __int__(self):
return self
class Foo4(int):
def __int__(self):
return 42
class Foo5(int):
def __int__(self):
return 42.
self.assertEqual(int(Foo0()), 42)
self.assertEqual(int(Foo1()), 42)
self.assertEqual(int(Foo2()), 42)
self.assertEqual(int(Foo3()), 0)
self.assertEqual(int(Foo4()), 42)
self.assertRaises(TypeError, int, Foo5())
class Classic:
pass
for base in (object, Classic):
class IntOverridesTrunc(base):
def __int__(self):
return 42
def __trunc__(self):
return -12
self.assertEqual(int(IntOverridesTrunc()), 42)
class JustTrunc(base):
def __trunc__(self):
return 42
self.assertEqual(int(JustTrunc()), 42)
for trunc_result_base in (object, Classic):
class Integral(trunc_result_base):
def __int__(self):
return 42
class TruncReturnsNonInt(base):
def __trunc__(self):
return Integral()
self.assertEqual(int(TruncReturnsNonInt()), 42)
class NonIntegral(trunc_result_base):
def __trunc__(self):
# Check that we avoid infinite recursion.
return NonIntegral()
class TruncReturnsNonIntegral(base):
def __trunc__(self):
return NonIntegral()
try:
int(TruncReturnsNonIntegral())
except TypeError as e:
self.assertEquals(str(e),
"__trunc__ returned non-Integral"
" (type NonIntegral)")
else:
self.fail("Failed to raise TypeError with %s" %
((base, trunc_result_base),))
def test_iter(self):
self.assertRaises(TypeError, iter)
self.assertRaises(TypeError, iter, 42, 42)
lists = [("1", "2"), ["1", "2"], "12"]
for l in lists:
i = iter(l)
self.assertEqual(next(i), '1')
self.assertEqual(next(i), '2')
self.assertRaises(StopIteration, next, i)
def test_isinstance(self):
class C:
pass
class D(C):
pass
class E:
pass
c = C()
d = D()
e = E()
self.assert_(isinstance(c, C))
self.assert_(isinstance(d, C))
self.assert_(not isinstance(e, C))
self.assert_(not isinstance(c, D))
self.assert_(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.assert_(issubclass(D, C))
self.assert_(issubclass(C, C))
self.assert_(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())
def test_list(self):
self.assertEqual(list([]), [])
l0_3 = [0, 1, 2, 3]
l0_3_bis = list(l0_3)
self.assertEqual(l0_3, l0_3_bis)
self.assert_(l0_3 is not l0_3_bis)
self.assertEqual(list(()), [])
self.assertEqual(list((0, 1, 2, 3)), [0, 1, 2, 3])
self.assertEqual(list(''), [])
self.assertEqual(list('spam'), ['s', 'p', 'a', 'm'])
if sys.maxsize == 0x7fffffff:
# This test can currently only work on 32-bit machines.
# XXX If/when PySequence_Length() returns a ssize_t, it should be
# XXX re-enabled.
# Verify clearing of bug #556025.
# This assumes that the max data size (sys.maxsize) == max
# address size this also assumes that the address size is at
# least 4 bytes with 8 byte addresses, the bug is not well
# tested
#
# Note: This test is expected to SEGV under Cygwin 1.3.12 or
# earlier due to a newlib bug. See the following mailing list
# thread for the details:
# http://sources.redhat.com/ml/newlib/2002/msg00369.html
self.assertRaises(MemoryError, list, range(sys.maxsize // 2))
# This code used to segfault in Py2.4a3
x = []
x.extend(-y for y in x)
self.assertEqual(x, [])
def test_long(self):
self.assertEqual(int(314), 314)
self.assertEqual(int(3.14), 3)
self.assertEqual(int(314), 314)
# Check that conversion from float truncates towards zero
self.assertEqual(int(-3.14), -3)
self.assertEqual(int(3.9), 3)
self.assertEqual(int(-3.9), -3)
self.assertEqual(int(3.5), 3)
self.assertEqual(int(-3.5), -3)
self.assertEqual(int("-3"), -3)
# Different base:
self.assertEqual(int("10",16), 16)
# Check conversions from string (same test set as for int(), and then some)
LL = [
('1' + '0'*20, 10**20),
('1' + '0'*100, 10**100)
]
for s, v in LL:
for sign in "", "+", "-":
for prefix in "", " ", "\t", " \t\t ":
ss = prefix + sign + s
vv = v
if sign == "-" and v is not ValueError:
vv = -v
try:
self.assertEqual(int(ss), int(vv))
except v:
pass
self.assertRaises(ValueError, int, '123\0')
self.assertRaises(ValueError, int, '53', 40)
self.assertRaises(TypeError, int, 1, 12)
# SF patch #1638879: embedded NULs were not detected with
# explicit base
self.assertRaises(ValueError, int, '123\0', 10)
self.assertRaises(ValueError, int, '123\x00 245', 20)
self.assertEqual(int('100000000000000000000000000000000', 2),
4294967296)
self.assertEqual(int('102002022201221111211', 3), 4294967296)
self.assertEqual(int('10000000000000000', 4), 4294967296)
self.assertEqual(int('32244002423141', 5), 4294967296)
self.assertEqual(int('1550104015504', 6), 4294967296)
self.assertEqual(int('211301422354', 7), 4294967296)
self.assertEqual(int('40000000000', 8), 4294967296)
self.assertEqual(int('12068657454', 9), 4294967296)
self.assertEqual(int('4294967296', 10), 4294967296)
self.assertEqual(int('1904440554', 11), 4294967296)
self.assertEqual(int('9ba461594', 12), 4294967296)
self.assertEqual(int('535a79889', 13), 4294967296)
self.assertEqual(int('2ca5b7464', 14), 4294967296)
self.assertEqual(int('1a20dcd81', 15), 4294967296)
self.assertEqual(int('100000000', 16), 4294967296)
self.assertEqual(int('a7ffda91', 17), 4294967296)
self.assertEqual(int('704he7g4', 18), 4294967296)
self.assertEqual(int('4f5aff66', 19), 4294967296)
self.assertEqual(int('3723ai4g', 20), 4294967296)
self.assertEqual(int('281d55i4', 21), 4294967296)
self.assertEqual(int('1fj8b184', 22), 4294967296)
self.assertEqual(int('1606k7ic', 23), 4294967296)
self.assertEqual(int('mb994ag', 24), 4294967296)
self.assertEqual(int('hek2mgl', 25), 4294967296)
self.assertEqual(int('dnchbnm', 26), 4294967296)
self.assertEqual(int('b28jpdm', 27), 4294967296)
self.assertEqual(int('8pfgih4', 28), 4294967296)
self.assertEqual(int('76beigg', 29), 4294967296)
self.assertEqual(int('5qmcpqg', 30), 4294967296)
self.assertEqual(int('4q0jto4', 31), 4294967296)
self.assertEqual(int('4000000', 32), 4294967296)
self.assertEqual(int('3aokq94', 33), 4294967296)
self.assertEqual(int('2qhxjli', 34), 4294967296)
self.assertEqual(int('2br45qb', 35), 4294967296)
self.assertEqual(int('1z141z4', 36), 4294967296)
self.assertEqual(int('100000000000000000000000000000001', 2),
4294967297)
self.assertEqual(int('102002022201221111212', 3), 4294967297)
self.assertEqual(int('10000000000000001', 4), 4294967297)
self.assertEqual(int('32244002423142', 5), 4294967297)
self.assertEqual(int('1550104015505', 6), 4294967297)
self.assertEqual(int('211301422355', 7), 4294967297)
self.assertEqual(int('40000000001', 8), 4294967297)
self.assertEqual(int('12068657455', 9), 4294967297)
self.assertEqual(int('4294967297', 10), 4294967297)
self.assertEqual(int('1904440555', 11), 4294967297)
self.assertEqual(int('9ba461595', 12), 4294967297)
self.assertEqual(int('535a7988a', 13), 4294967297)
self.assertEqual(int('2ca5b7465', 14), 4294967297)
self.assertEqual(int('1a20dcd82', 15), 4294967297)
self.assertEqual(int('100000001', 16), 4294967297)
self.assertEqual(int('a7ffda92', 17), 4294967297)
self.assertEqual(int('704he7g5', 18), 4294967297)
self.assertEqual(int('4f5aff67', 19), 4294967297)
self.assertEqual(int('3723ai4h', 20), 4294967297)
self.assertEqual(int('281d55i5', 21), 4294967297)
self.assertEqual(int('1fj8b185', 22), 4294967297)
self.assertEqual(int('1606k7id', 23), 4294967297)
self.assertEqual(int('mb994ah', 24), 4294967297)
self.assertEqual(int('hek2mgm', 25), 4294967297)
self.assertEqual(int('dnchbnn', 26), 4294967297)
self.assertEqual(int('b28jpdn', 27), 4294967297)
self.assertEqual(int('8pfgih5', 28), 4294967297)
self.assertEqual(int('76beigh', 29), 4294967297)
self.assertEqual(int('5qmcpqh', 30), 4294967297)
self.assertEqual(int('4q0jto5', 31), 4294967297)
self.assertEqual(int('4000001', 32), 4294967297)
self.assertEqual(int('3aokq95', 33), 4294967297)
self.assertEqual(int('2qhxjlj', 34), 4294967297)
self.assertEqual(int('2br45qc', 35), 4294967297)
self.assertEqual(int('1z141z5', 36), 4294967297)
def test_longconversion(self):
# Test __long__()
class Foo0:
def __long__(self):
return 42
class Foo1(object):
def __long__(self):
return 42
class Foo2(int):
def __long__(self):
return 42
class Foo3(int):
def __long__(self):
return self
class Foo4(int):
def __long__(self):
return 42
class Foo5(int):
def __long__(self):
return 42.
self.assertEqual(int(Foo0()), 42)
self.assertEqual(int(Foo1()), 42)
# XXX invokes __int__ now
# self.assertEqual(long(Foo2()), 42L)
self.assertEqual(int(Foo3()), 0)
# XXX likewise
# self.assertEqual(long(Foo4()), 42)
# self.assertRaises(TypeError, long, Foo5())
def test_map(self):
self.assertEqual(
list(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(
list(map(lambda x: list(map(sqrt, x)), [[16, 4], [81, 9]])),
[[4.0, 2.0], [9.0, 3.0]]
)
self.assertEqual(
list(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(
list(map(plus, [1, 3, 7])),
[1, 3, 7]
)
self.assertEqual(
list(map(plus, [1, 3, 7], [4, 9, 2])),
[1+4, 3+9, 7+2]
)
self.assertEqual(
list(map(plus, [1, 3, 7], [4, 9, 2], [1, 1, 0])),
[1+4+1, 3+9+1, 7+2+0]
)
self.assertEqual(
list(map(int, Squares(10))),
[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]
)
def Max(a, b):
if a is None:
return b
if b is None:
return a
return max(a, b)
self.assertEqual(
list(map(Max, Squares(3), Squares(2))),
[0, 1]
)
self.assertRaises(TypeError, map)
self.assertRaises(TypeError, map, lambda x: x, 42)
class BadSeq:
def __iter__(self):
raise ValueError
yield None
self.assertRaises(ValueError, list, map(lambda x: x, BadSeq()))
def badfunc(x):
raise RuntimeError
self.assertRaises(RuntimeError, list, 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, 2, 3.0), 3.0)
self.assertEqual(max(1, 2.0, 3), 3)
self.assertEqual(max(1.0, 2, 3), 3)
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, 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, 2, 3.0), 1)
self.assertEqual(min(1, 2.0, 3), 1)
self.assertEqual(min(1.0, 2, 3), 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(TypeError, 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, 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.assertEquals(next(it, 42), 42)
class Iter(object):
def __iter__(self):
return self
def __next__(self):
raise StopIteration
it = iter(Iter())
self.assertEquals(next(it, 42), 42)
self.assertRaises(StopIteration, next, it)
def gen():
yield 1
return
it = gen()
self.assertEquals(next(it), 1)
self.assertRaises(StopIteration, next, it)
self.assertEquals(next(it, 42), 42)
def test_oct(self):
self.assertEqual(oct(100), '0o144')
self.assertEqual(oct(100), '0o144')
self.assertEqual(oct(-100), '-0o144')
self.assertEqual(oct(-100), '-0o144')
self.assertRaises(TypeError, oct, ())
def write_testfile(self):
# NB the first 4 lines are also used to test 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)
self.assertEqual(ord('\x80'), 128)
self.assertEqual(ord('\xff'), 255)
self.assertEqual(ord(b' '), 32)
self.assertEqual(ord(b'A'), 65)
self.assertEqual(ord(b'a'), 97)
self.assertEqual(ord(b'\x80'), 128)
self.assertEqual(ord(b'\xff'), 255)
self.assertEqual(ord(chr(sys.maxunicode)), sys.maxunicode)
self.assertRaises(TypeError, ord, 42)
self.assertEqual(ord(chr(0x10FFFF)), 0x10FFFF)
self.assertEqual(ord("\U0000FFFF"), 0x0000FFFF)
self.assertEqual(ord("\U00010000"), 0x00010000)
self.assertEqual(ord("\U00010001"), 0x00010001)
self.assertEqual(ord("\U000FFFFE"), 0x000FFFFE)
self.assertEqual(ord("\U000FFFFF"), 0x000FFFFF)
self.assertEqual(ord("\U00100000"), 0x00100000)
self.assertEqual(ord("\U00100001"), 0x00100001)
self.assertEqual(ord("\U0010FFFE"), 0x0010FFFE)
self.assertEqual(ord("\U0010FFFF"), 0x0010FFFF)
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(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.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, 2, 2.0:
for y in 10, 10, 10.0:
for z in 1000, 1000, 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.assertAlmostEqual(pow(-1, 0.5), 1j)
self.assertAlmostEqual(pow(-1, 1/3), 0.5 + 0.8660254037844386j)
self.assertRaises(TypeError, pow, -1, -2, 3)
self.assertRaises(ValueError, pow, 1, 2, 0)
self.assertRaises(TypeError, pow, -1, -2, 3)
self.assertRaises(ValueError, pow, 1, 2, 0)
self.assertRaises(TypeError, pow)
def test_range(self):
self.assertEqual(list(range(3)), [0, 1, 2])
self.assertEqual(list(range(1, 5)), [1, 2, 3, 4])
self.assertEqual(list(range(0)), [])
self.assertEqual(list(range(-3)), [])
self.assertEqual(list(range(1, 10, 3)), [1, 4, 7])
#self.assertEqual(list(range(5, -5, -3)), [5, 2, -1, -4])
""" XXX(nnorwitz):
# Now test range() with longs
self.assertEqual(list(range(-2**100)), [])
self.assertEqual(list(range(0, -2**100)), [])
self.assertEqual(list(range(0, 2**100, -1)), [])
self.assertEqual(list(range(0, 2**100, -1)), [])
a = int(10 * sys.maxsize)
b = int(100 * sys.maxsize)
c = int(50 * sys.maxsize)
self.assertEqual(list(range(a, a+2)), [a, a+1])
self.assertEqual(list(range(a+2, a, -1)), [a+2, a+1])
self.assertEqual(list(range(a+4, a, -2)), [a+4, a+2])
seq = list(range(a, b, c))
self.assert_(a in seq)
self.assert_(b not in seq)
self.assertEqual(len(seq), 2)
seq = list(range(b, a, -c))
self.assert_(b in seq)
self.assert_(a not in seq)
self.assertEqual(len(seq), 2)
seq = list(range(-a, -b, -c))
self.assert_(-a in seq)
self.assert_(-b not in 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, int(0))
class badzero(int):
def __eq__(self, other):
raise RuntimeError
__ne__ = __lt__ = __gt__ = __le__ = __ge__ = __eq__
# XXX This won't (but should!) raise RuntimeError if a is an int...
self.assertRaises(RuntimeError, range, a, a + 1, badzero(1))
"""
# Reject floats when it would require PyLongs to represent.
# (smaller floats still accepted, but deprecated)
self.assertRaises(TypeError, range, 1e100, 1e101, 1e101)
self.assertRaises(TypeError, range, 0, "spam")
self.assertRaises(TypeError, range, 0, 42, "spam")
#NEAL self.assertRaises(OverflowError, range, -sys.maxsize, sys.maxsize)
#NEAL self.assertRaises(OverflowError, range, 0, 2*sys.maxsize)
self.assertRaises(OverflowError, len, range(0, sys.maxsize**10))
def test_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(), "1+1")
self.assertEqual(input('testing\n'), "1+1")
self.assertEqual(input(), 'The quick brown fox jumps over the lazy dog.')
self.assertEqual(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 = io.StringIO("NULL\0")
self.assertRaises(TypeError, input, 42, 42)
sys.stdin = io.StringIO(" 'whitespace'")
self.assertEqual(input(), " 'whitespace'")
sys.stdin = io.StringIO()
self.assertRaises(EOFError, input)
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_repr(self):
self.assertEqual(repr(''), '\'\'')
self.assertEqual(repr(0), '0')
self.assertEqual(repr(0), '0')
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)), int)
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 even / odd rounding behaviour
self.assertEqual(round(5.5), 6)
self.assertEqual(round(6.5), 6)
self.assertEqual(round(-5.5), -6)
self.assertEqual(round(-6.5), -6)
# Check behavior on ints
self.assertEqual(round(0), 0)
self.assertEqual(round(8), 8)
self.assertEqual(round(-8), -8)
self.assertEqual(type(round(0)), int)
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:
def __round__(self):
return 23
class TestNoRound:
pass
self.assertEqual(round(TestRound()), 23)
self.assertRaises(TypeError, round, 1, 2, 3)
self.assertRaises(TypeError, round, TestNoRound())
t = TestNoRound()
t.__round__ = lambda *args: args
self.assertRaises(TypeError, round, t)
self.assertRaises(TypeError, round, t, 0)
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_str(self):
self.assertEqual(str(''), '')
self.assertEqual(str(0), '0')
self.assertEqual(str(0), '0')
self.assertEqual(str(()), '()')
self.assertEqual(str([]), '[]')
self.assertEqual(str({}), '{}')
a = []
a.append(a)
self.assertEqual(str(a), '[[...]]')
a = {}
a[0] = a
self.assertEqual(str(a), '{0: {...}}')
def test_sum(self):
self.assertEqual(sum([]), 0)
self.assertEqual(sum(list(range(2,8))), 27)
self.assertEqual(sum(iter(list(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())
def test_tuple(self):
self.assertEqual(tuple(()), ())
t0_3 = (0, 1, 2, 3)
t0_3_bis = tuple(t0_3)
self.assert_(t0_3 is t0_3_bis)
self.assertEqual(tuple([]), ())
self.assertEqual(tuple([0, 1, 2, 3]), (0, 1, 2, 3))
self.assertEqual(tuple(''), ())
self.assertEqual(tuple('spam'), ('s', 'p', 'a', 'm'))
def test_type(self):
self.assertEqual(type(''), type('123'))
self.assertNotEqual(type(''), type(()))
# 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()
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)
def test_zip(self):
a = (1, 2, 3)
b = (4, 5, 6)
t = [(1, 4), (2, 5), (3, 6)]
self.assertEqual(list(zip(a, b)), t)
b = [4, 5, 6]
self.assertEqual(list(zip(a, b)), t)
b = (4, 5, 6, 7)
self.assertEqual(list(zip(a, b)), t)
class I:
def __getitem__(self, i):
if i < 0 or i > 2: raise IndexError
return i + 4
self.assertEqual(list(zip(a, I())), t)
self.assertEqual(list(zip()), [])
self.assertEqual(list(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(
list(zip(SequenceWithoutALength(), range(2**30))),
list(enumerate(range(5)))
)
class BadSeq:
def __getitem__(self, i):
if i == 5:
raise ValueError
else:
return i
self.assertRaises(ValueError, list, zip(BadSeq(), BadSeq()))
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)
class TestSorted(unittest.TestCase):
def test_basic(self):
data = list(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, 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, str]
for T in types:
self.assertEqual(sorted(s), sorted(T(s)))
s = ''.join(set(s)) # unique letters only
types = [str, set, frozenset, list, tuple, dict.fromkeys]
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 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 range(len(counts)):
run_unittest(*test_classes)
gc.collect()
counts[i] = sys.gettotalrefcount()
print(counts)
if __name__ == "__main__":
test_main(verbose=True)
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