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# 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
self.assertEqual(all([0, TestFailingBool()]), False)# Short-circuit
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, any, 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
self.assertEqual(any([1, TestFailingBool()]), True) # Short-circuit
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())
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
# test_int(): see test_int.py for int() tests.
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 TestExecFile(unittest.TestCase):
# 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):
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")
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)
class TestType(unittest.TestCase):
def test_new_type(self):
A = type('A', (), {})
self.assertEqual(A.__name__, 'A')
self.assertEqual(A.__module__, __name__)
self.assertEqual(A.__bases__, (object,))
self.assertIs(A.__base__, object)
x = A()
self.assertIs(type(x), A)
self.assertIs(x.__class__, A)
class B:
def ham(self):
return 'ham%d' % self
C = type('C', (B, int), {'spam': lambda self: 'spam%s' % self})
self.assertEqual(C.__name__, 'C')
self.assertEqual(C.__module__, __name__)
self.assertEqual(C.__bases__, (B, int))
self.assertIs(C.__base__, int)
self.assertIn('spam', C.__dict__)
self.assertNotIn('ham', C.__dict__)
x = C(42)
self.assertEqual(x, 42)
self.assertIs(type(x), C)
self.assertIs(x.__class__, C)
self.assertEqual(x.ham(), 'ham42')
self.assertEqual(x.spam(), 'spam42')
self.assertEqual(x.bit_length(), 6)
def test_type_new_keywords(self):
class B:
def ham(self):
return 'ham%d' % self
C = type.__new__(type,
name='C',
bases=(B, int),
dict={'spam': lambda self: 'spam%s' % self})
self.assertEqual(C.__name__, 'C')
self.assertEqual(C.__module__, __name__)
self.assertEqual(C.__bases__, (B, int))
self.assertIs(C.__base__, int)
self.assertIn('spam', C.__dict__)
self.assertNotIn('ham', C.__dict__)
def test_type_name(self):
for name in 'A', '\xc4', 'B.A', '42', '':
A = type(name, (), {})
self.assertEqual(A.__name__, name)
self.assertEqual(A.__module__, __name__)
with self.assertRaises(ValueError):
type('A\x00B', (), {})
with self.assertRaises(TypeError):
type(u'A', (), {})
C = type('C', (), {})
for name in 'A', '\xc4', 'B.A', '42', '':
C.__name__ = name
self.assertEqual(C.__name__, name)
self.assertEqual(C.__module__, __name__)
A = type('C', (), {})
with self.assertRaises(ValueError):
A.__name__ = 'A\x00B'
self.assertEqual(A.__name__, 'C')
with self.assertRaises(TypeError):
A.__name__ = u'A'
self.assertEqual(A.__name__, 'C')
def test_type_doc(self):
tests = ('x', '\xc4', 'x\x00y', 42, None)
if have_unicode:
tests += (u'\xc4', u'x\x00y')
for doc in tests:
A = type('A', (), {'__doc__': doc})
self.assertEqual(A.__doc__, doc)
A = type('A', (), {})
self.assertEqual(A.__doc__, None)
with self.assertRaises(AttributeError):
A.__doc__ = 'x'
def test_bad_args(self):
with self.assertRaises(TypeError):
type()
with self.assertRaises(TypeError):
type('A', ())
with self.assertRaises(TypeError):
type('A', (), {}, ())
with self.assertRaises(TypeError):
type('A', (), dict={})
with self.assertRaises(TypeError):
type('A', [], {})
with self.assertRaises(TypeError):
type('A', (), UserDict.UserDict())
with self.assertRaises(TypeError):
type('A', (None,), {})
with self.assertRaises(TypeError):
type('A', (bool,), {})
with self.assertRaises(TypeError):
type('A', (int, str), {})
class B:
pass
with self.assertRaises(TypeError):
type('A', (B,), {})
def test_bad_slots(self):
with self.assertRaises(TypeError):
type('A', (long,), {'__slots__': 'x'})
with self.assertRaises(TypeError):
type('A', (), {'__slots__': ''})
with self.assertRaises(TypeError):
type('A', (), {'__slots__': '42'})
with self.assertRaises(TypeError):
type('A', (), {'__slots__': 'x\x00y'})
with self.assertRaises(TypeError):
type('A', (), {'__slots__': ('__dict__', '__dict__')})
with self.assertRaises(TypeError):
type('A', (), {'__slots__': ('__weakref__', '__weakref__')})
class B(object):
pass
with self.assertRaises(TypeError):
type('A', (B,), {'__slots__': '__dict__'})
with self.assertRaises(TypeError):
type('A', (B,), {'__slots__': '__weakref__'})
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):
global numruns
if not numruns:
with check_py3k_warnings(
(".+ not supported in 3.x", DeprecationWarning)):
run_unittest(TestExecFile)
numruns += 1
test_classes = (BuiltinTest, TestSorted, TestType)
_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)