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cpython/Lib/test/test_builtin.py

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# Python test set -- built-in functions
import test.test_support, unittest
from test.test_support import fcmp, have_unicode, TESTFN, unlink
import sys, warnings, cStringIO
warnings.filterwarnings("ignore", "hex../oct.. of negative int",
FutureWarning, __name__)
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
L = [
('0', 0),
('1', 1),
('9', 9),
('10', 10),
('99', 99),
('100', 100),
('314', 314),
(' 314', 314),
('314 ', 314),
(' \t\t 314 \t\t ', 314),
(`sys.maxint`, sys.maxint),
(' 1x', ValueError),
(' 1 ', 1),
(' 1\02 ', ValueError),
('', ValueError),
(' ', ValueError),
(' \t\t ', ValueError)
]
if have_unicode:
L += [
(unicode('0'), 0),
(unicode('1'), 1),
(unicode('9'), 9),
(unicode('10'), 10),
(unicode('99'), 99),
(unicode('100'), 100),
(unicode('314'), 314),
(unicode(' 314'), 314),
(unicode('\u0663\u0661\u0664 ','raw-unicode-escape'), 314),
(unicode(' \t\t 314 \t\t '), 314),
(unicode(' 1x'), ValueError),
(unicode(' 1 '), 1),
(unicode(' 1\02 '), ValueError),
(unicode(''), ValueError),
(unicode(' '), ValueError),
(unicode(' \t\t '), ValueError),
(unichr(0x200), ValueError),
]
class BuiltinTest(unittest.TestCase):
def test_import(self):
__import__('sys')
__import__('time')
__import__('string')
self.assertRaises(ImportError, __import__, 'spamspam')
self.assertRaises(TypeError, __import__, 1, 2, 3, 4)
def test_abs(self):
# int
self.assertEqual(abs(0), 0)
self.assertEqual(abs(1234), 1234)
self.assertEqual(abs(-1234), 1234)
# 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')
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.assert_(callable(len))
def f(): pass
self.assert_(callable(f))
class C:
def meth(self): pass
self.assert_(callable(C))
x = C()
self.assert_(callable(x.meth))
self.assert_(not callable(x))
class D(C):
def __call__(self): pass
y = D()
self.assert_(callable(y))
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, 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 handled
a = []; a.append(a)
b = []; b.append(b)
from UserList import UserList
c = UserList(); c.append(c)
self.assertEqual(cmp(a, b), 0)
self.assertEqual(cmp(b, c), 0)
self.assertEqual(cmp(c, a), 0)
self.assertEqual(cmp(a, c), 0)
# okay, now break the cycles
a.pop(); b.pop(); c.pop()
self.assertRaises(TypeError, cmp)
def test_coerce(self):
self.assert_(not fcmp(coerce(1, 1.1), (1.0, 1.1)))
self.assertEqual(coerce(1, 1L), (1L, 1L))
self.assert_(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')
self.assertRaises(TypeError, compile)
self.assertRaises(ValueError, compile, 'print 42\n', '<string>', 'badmode')
self.assertRaises(ValueError, compile, 'print 42\n', '<string>', 'single', 0xff)
def test_complex(self):
class OS:
def __complex__(self): return 1+10j
class NS(object):
def __complex__(self): return 1+10j
self.assertEqual(complex(OS()), 1+10j)
self.assertEqual(complex(NS()), 1+10j)
self.assertEqual(complex("1+10j"), 1+10j)
self.assertEqual(complex(10), 10+0j)
self.assertEqual(complex(10.0), 10+0j)
self.assertEqual(complex(10L), 10+0j)
self.assertEqual(complex(10+0j), 10+0j)
self.assertEqual(complex(1,10), 1+10j)
self.assertEqual(complex(1,10L), 1+10j)
self.assertEqual(complex(1,10.0), 1+10j)
self.assertEqual(complex(1L,10), 1+10j)
self.assertEqual(complex(1L,10L), 1+10j)
self.assertEqual(complex(1L,10.0), 1+10j)
self.assertEqual(complex(1.0,10), 1+10j)
self.assertEqual(complex(1.0,10L), 1+10j)
self.assertEqual(complex(1.0,10.0), 1+10j)
self.assertEqual(complex(3.14+0j), 3.14+0j)
self.assertEqual(complex(3.14), 3.14+0j)
self.assertEqual(complex(314), 314.0+0j)
self.assertEqual(complex(314L), 314.0+0j)
self.assertEqual(complex(3.14+0j, 0j), 3.14+0j)
self.assertEqual(complex(3.14, 0.0), 3.14+0j)
self.assertEqual(complex(314, 0), 314.0+0j)
self.assertEqual(complex(314L, 0L), 314.0+0j)
self.assertEqual(complex(0j, 3.14j), -3.14+0j)
self.assertEqual(complex(0.0, 3.14j), -3.14+0j)
self.assertEqual(complex(0j, 3.14), 3.14j)
self.assertEqual(complex(0.0, 3.14), 3.14j)
self.assertEqual(complex("1"), 1+0j)
self.assertEqual(complex("1j"), 1j)
c = 3.14 + 1j
self.assert_(complex(c) is c)
del c
self.assertRaises(TypeError, complex, "1", "1")
self.assertRaises(TypeError, complex, 1, "1")
self.assertEqual(complex(" 3.14+J "), 3.14+1j)
if have_unicode:
self.assertEqual(complex(unicode(" 3.14+J ")), 3.14+1j)
# SF bug 543840: complex(string) accepts strings with \0
# Fixed in 2.3.
self.assertRaises(ValueError, complex, '1+1j\0j')
class Z:
def __complex__(self): return 3.14j
z = Z()
self.assertEqual(complex(z), 3.14j)
def test_delattr(self):
import sys
sys.spam = 1
delattr(sys, 'spam')
self.assertRaises(TypeError, delattr)
def test_dir(self):
x = 1
self.assert_('x' in dir())
import sys
self.assert_('modules' in dir(sys))
self.assertRaises(TypeError, dir, 42, 42)
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.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)
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)
self.assertRaises(TypeError, eval)
self.assertRaises(TypeError, eval, ())
# 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()
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)
unlink(TESTFN)
self.assertRaises(TypeError, execfile)
import os
self.assertRaises(IOError, execfile, os.curdir)
self.assertRaises(IOError, execfile, "I_dont_exist")
def test_filter(self):
self.assertEqual(filter(lambda c: 'a' <= c <= 'z', 'Hello World'), 'elloorld')
self.assertEqual(filter(None, [1, 'hello', [], [3], '', None, 9, 0]), [1, 'hello', [3], 9])
self.assertEqual(filter(lambda x: x > 0, [1, -3, 9, 0, 2]), [1, 9, 2])
self.assertEqual(filter(None, Squares(10)), [1, 4, 9, 16, 25, 36, 49, 64, 81])
self.assertEqual(filter(lambda x: x%2, Squares(10)), [1, 9, 25, 49, 81])
def identity(item):
return 1
filter(identity, Squares(5))
self.assertRaises(TypeError, filter)
class BadSeq(object):
def __getitem__(self, index):
if index<4:
return 42
raise ValueError
self.assertRaises(ValueError, filter, lambda x: x, BadSeq())
def badfunc():
pass
self.assertRaises(TypeError, filter, badfunc, range(5))
# test bltinmodule.c::filtertuple()
self.assertEqual(filter(None, (1, 2)), (1, 2))
self.assertEqual(filter(lambda x: x>=3, (1, 2, 3, 4)), (3, 4))
self.assertRaises(TypeError, filter, 42, (1, 2))
# test bltinmodule.c::filterstring()
self.assertEqual(filter(None, "12"), "12")
self.assertEqual(filter(lambda x: x>="3", "1234"), "34")
self.assertRaises(TypeError, filter, 42, "12")
class badstr(str):
def __getitem__(self, index):
raise ValueError
self.assertRaises(ValueError, filter, lambda x: x >="3", badstr("1234"))
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")))
def test_float(self):
self.assertEqual(float(3.14), 3.14)
self.assertEqual(float(314), 314.0)
self.assertEqual(float(314L), 314.0)
self.assertEqual(float(" 3.14 "), 3.14)
if have_unicode:
self.assertEqual(float(unicode(" 3.14 ")), 3.14)
self.assertEqual(float(unicode(" \u0663.\u0661\u0664 ",'raw-unicode-escape')), 3.14)
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(UnicodeError, getattr, sys, unichr(sys.maxunicode))
def test_hasattr(self):
import sys
self.assert_(hasattr(sys, 'stdout'))
self.assertRaises(TypeError, hasattr, sys, 1)
self.assertRaises(TypeError, hasattr)
self.assertRaises(UnicodeError, hasattr, sys, unichr(sys.maxunicode))
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, {})
def test_hex(self):
self.assertEqual(hex(16), '0x10')
self.assertEqual(hex(16L), '0x10L')
self.assertEqual(len(hex(-1)), len(hex(sys.maxint)))
self.assert_(hex(-16) in ('0xfffffff0', '0xfffffffffffffff0'))
self.assertEqual(hex(-16L), '-0x10L')
self.assertRaises(TypeError, hex, {})
def test_id(self):
id(None)
id(1)
id(1L)
id(1.0)
id('spam')
id((0,1,2,3))
id([0,1,2,3])
id({'spam': 1, 'eggs': 2, 'ham': 3})
# Test input() later, together with raw_input
def test_int(self):
self.assertEqual(int(314), 314)
self.assertEqual(int(3.14), 3)
self.assertEqual(int(314L), 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), 16L)
if have_unicode:
self.assertEqual(int(unicode("10"),16), 16L)
# Test conversion from strings and various anomalies
for s, v in L:
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 = `-1-sys.maxint`
self.assertEqual(int(s)+1, -sys.maxint)
# should return long
int(s[1:])
# should return long
x = int(1e100)
self.assert_(isinstance(x, long))
x = int(-1e100)
self.assert_(isinstance(x, long))
# 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.maxint
self.assertEqual(x >> 1, x//2)
self.assertRaises(ValueError, int, '123\0')
self.assertRaises(ValueError, int, '53', 40)
x = int('1' * 600)
self.assert_(isinstance(x, long))
if have_unicode:
x = int(unichr(0x661) * 600)
self.assert_(isinstance(x, long))
self.assertRaises(TypeError, int, 1, 12)
self.assertEqual(int('0123', 0), 83)
def test_intern(self):
self.assertRaises(TypeError, intern)
s = "never interned before"
self.assert_(intern(s) is s)
s2 = s.swapcase().swapcase()
self.assert_(intern(s2) is 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.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.maxint == 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.maxint) == 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, xrange(sys.maxint // 2))
def test_long(self):
self.assertEqual(long(314), 314L)
self.assertEqual(long(3.14), 3L)
self.assertEqual(long(314L), 314L)
# Check that conversion from float truncates towards zero
self.assertEqual(long(-3.14), -3L)
self.assertEqual(long(3.9), 3L)
self.assertEqual(long(-3.9), -3L)
self.assertEqual(long(3.5), 3L)
self.assertEqual(long(-3.5), -3L)
self.assertEqual(long("-3"), -3L)
if have_unicode:
self.assertEqual(long(unicode("-3")), -3L)
# Different base:
self.assertEqual(long("10",16), 16L)
if have_unicode:
self.assertEqual(long(unicode("10"),16), 16L)
# Check conversions from string (same test set as for int(), and then some)
LL = [
('1' + '0'*20, 10L**20),
('1' + '0'*100, 10L**100)
]
L2 = L
if have_unicode:
L2 += [
(unicode('1') + unicode('0')*20, 10L**20),
(unicode('1') + unicode('0')*100, 10L**100),
]
for s, v in L2 + 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(long(ss), long(vv))
except v:
pass
self.assertRaises(ValueError, long, '123\0')
self.assertRaises(ValueError, long, '53', 40)
self.assertRaises(TypeError, long, 1, 12)
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 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)
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()))
def test_oct(self):
self.assertEqual(oct(100), '0144')
self.assertEqual(oct(100L), '0144L')
self.assert_(oct(-100) in ('037777777634', '01777777777777777777634'))
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)
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)
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])
self.assertRaises(TypeError, range)
self.assertRaises(TypeError, range, 1, 2, 3, 4)
self.assertRaises(ValueError, range, 1, 2, 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')
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)
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):
self.assertEqual(reduce(lambda x, y: x+y, ['a', 'b', 'c'], ''), 'abc')
self.assertEqual(
reduce(lambda x, y: x+y, [['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(lambda x, y: x+y, Squares(10)), 285)
self.assertEqual(reduce(lambda x, y: x+y, Squares(10), 0), 285)
self.assertEqual(reduce(lambda x, y: x+y, Squares(0), 0), 0)
self.assertRaises(TypeError, reduce)
self.assertRaises(TypeError, reduce, 42, 42)
self.assertRaises(TypeError, reduce, 42, 42, 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))
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(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.assertRaises(TypeError, round)
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(0L), '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_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(()))
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)
def get_vars_f0():
return vars()
# we don't want self in vars(), so use staticmethod
get_vars_f0 = staticmethod(get_vars_f0)
def get_vars_f2():
BuiltinTest.get_vars_f0()
a = 1
b = 2
return vars()
get_vars_f2 = staticmethod(get_vars_f2)
def test_vars(self):
a = b = None
a = vars().keys()
b = dir()
a.sort()
b.sort()
self.assertEqual(a, b)
import sys
a = vars(sys).keys()
b = dir(sys)
a.sort()
b.sort()
self.assertEqual(a, b)
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(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.assertRaises(TypeError, 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_main():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(BuiltinTest))
test.test_support.run_suite(suite)
if __name__ == "__main__":
test_main()
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