1877 lines
66 KiB
Python
1877 lines
66 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
Tests to make sure the behaviour of the builtins is sensible and correct.
|
|
"""
|
|
|
|
from __future__ import absolute_import, division, print_function, unicode_literals
|
|
from future.builtins import (bytes, dict, int, range, round, str, super,
|
|
ascii, chr, hex, input, next, oct, open, pow,
|
|
filter, map, zip, min, max)
|
|
|
|
from future.utils import PY3, exec_, native_str, implements_iterator
|
|
from future.tests.base import (unittest, skip26, expectedFailurePY2,
|
|
expectedFailurePY26)
|
|
|
|
import sys
|
|
import textwrap
|
|
import tempfile
|
|
import os
|
|
from subprocess import Popen, PIPE
|
|
from numbers import Integral
|
|
from decimal import Decimal
|
|
|
|
|
|
class TestBuiltins(unittest.TestCase):
|
|
def setUp(self):
|
|
self.tempdir = tempfile.mkdtemp() + os.path.sep
|
|
|
|
def test_super(self):
|
|
class verbose_list(list):
|
|
'''
|
|
A class that uses the new simpler super() function
|
|
'''
|
|
def append(self, item):
|
|
print('Adding an item')
|
|
super().append(item)
|
|
|
|
l = verbose_list()
|
|
l.append('blah')
|
|
self.assertEqual(l[0], 'blah')
|
|
self.assertEqual(len(l), 1)
|
|
self.assertTrue(isinstance(l, list))
|
|
|
|
def test_super_2(self):
|
|
"""
|
|
This occurs in the backported email/_header_value_parser.py
|
|
module and seems to fail.
|
|
"""
|
|
class Terminal(str):
|
|
def __new__(cls, value, token_type):
|
|
self = super().__new__(cls, value)
|
|
self.token_type = token_type
|
|
self.defects = []
|
|
return self
|
|
|
|
DOT = Terminal('.', 'dot')
|
|
|
|
self.assertTrue(True)
|
|
|
|
def test_isinstance_int(self):
|
|
"""
|
|
Redefining ``int`` to a ``long`` subclass on Py2 makes this
|
|
test fail unless __instancecheck__() is defined appropriately (or
|
|
isinstance is redefined, as we used to do ...)
|
|
"""
|
|
self.assertTrue(isinstance(0, int))
|
|
self.assertTrue(isinstance(int(1), int))
|
|
self.assertFalse(isinstance(1.0, int))
|
|
|
|
def test_isinstance_Integral(self):
|
|
"""
|
|
Tests the preferred alternative to the above
|
|
"""
|
|
self.assertTrue(isinstance(0, Integral))
|
|
|
|
def test_isinstance_long(self):
|
|
"""
|
|
Py2's long doesn't inherit from int!
|
|
"""
|
|
self.assertTrue(isinstance(10**100, int))
|
|
self.assertTrue(isinstance(int(2**64), int))
|
|
if not PY3:
|
|
self.assertTrue(isinstance(long(1), int))
|
|
# Note: the following is a SyntaxError on Py3:
|
|
# self.assertTrue(isinstance(1L, int))
|
|
|
|
def test_isinstance_bytes(self):
|
|
self.assertTrue(isinstance(b'byte-string', bytes))
|
|
self.assertFalse(isinstance(b'byte-string', str))
|
|
|
|
def test_isinstance_str(self):
|
|
self.assertTrue(isinstance('string', str))
|
|
self.assertTrue(isinstance(u'string', str))
|
|
self.assertFalse(isinstance(u'string', bytes))
|
|
|
|
@expectedFailurePY2
|
|
def test_type(self):
|
|
"""
|
|
The following fails when passed a unicode string on Python
|
|
(including when unicode_literals is in effect) and fails when
|
|
passed a byte-string on Python 3. So type() always wants a native
|
|
string as the first argument.
|
|
|
|
TODO: maybe provide a replacement that works identically on Py2/3?
|
|
"""
|
|
mytype = type('blah', (dict,), {"old": 1, "new": 2})
|
|
d = mytype()
|
|
self.assertTrue(isinstance(d, mytype))
|
|
self.assertTrue(isinstance(d, dict))
|
|
|
|
def test_isinstance_tuple_of_types(self):
|
|
# These two should be equivalent, even if ``int`` is a special
|
|
# backported type.
|
|
label = 1
|
|
self.assertTrue(isinstance(label, (float, Decimal)) or
|
|
isinstance(label, int))
|
|
self.assertTrue(isinstance(label, (float, Decimal, int)))
|
|
self.assertTrue(isinstance(10**100, (float, Decimal, int)))
|
|
|
|
self.assertTrue(isinstance(b'blah', (str, bytes)))
|
|
self.assertTrue(isinstance(b'blah', (bytes, float, int)))
|
|
|
|
self.assertFalse(isinstance(b'blah', (str, Decimal, float, int)))
|
|
|
|
self.assertTrue(isinstance('blah', (str, Decimal, float, int)))
|
|
self.assertTrue(isinstance(u'blah', (Decimal, float, int, str)))
|
|
|
|
self.assertFalse(isinstance('blah', (bytes, Decimal, float, int)))
|
|
|
|
def test_round(self):
|
|
"""
|
|
Note that the Python 2.x round() function fails these tests. The
|
|
Python 3.x round() function passes them, as should our custom
|
|
round() function.
|
|
"""
|
|
self.assertEqual(round(0.1250, 2), 0.12)
|
|
self.assertEqual(round(0.1350, 2), 0.14)
|
|
self.assertEqual(round(0.1251, 2), 0.13)
|
|
self.assertEqual(round(0.125000001, 2), 0.13)
|
|
self.assertEqual(round(123.5, 0), 124.0)
|
|
self.assertEqual(round(123.5), 124)
|
|
self.assertEqual(round(12.35, 2), 12.35)
|
|
self.assertEqual(round(12.35, 1), 12.3)
|
|
self.assertEqual(round(12.35, 0), 12.0)
|
|
self.assertEqual(round(123.5, 1), 123.5)
|
|
|
|
self.assertTrue(isinstance(round(123.5, 0), float))
|
|
self.assertTrue(isinstance(round(123.5), Integral))
|
|
|
|
@unittest.skip('negative ndigits not implemented yet')
|
|
def test_round_negative_ndigits(self):
|
|
self.assertEqual(round(10.1350, 0), 10.0)
|
|
self.assertEqual(round(10.1350, -1), 10.0)
|
|
self.assertEqual(round(10.1350, -2), 0.0)
|
|
self.assertEqual(round(10.1350, -3), 0.0)
|
|
|
|
self.assertEqual(round(12.35, -1), 10.0)
|
|
self.assertEqual(round(12.35, -2), 0.0)
|
|
self.assertEqual(round(123.5, -1), 120.0)
|
|
self.assertEqual(round(123.5, -2), 100.0)
|
|
self.assertEqual(round(123.551, -2), 100.0)
|
|
self.assertEqual(round(123.551, -3), 0.0)
|
|
|
|
def test_newnext_doc_example(self):
|
|
# Python 3-style iterator:
|
|
class Upper(object):
|
|
def __init__(self, iterable):
|
|
self._iter = iter(iterable)
|
|
def __next__(self): # note the Py3 interface
|
|
return next(self._iter).upper()
|
|
def __iter__(self):
|
|
return self
|
|
|
|
# from future.builtins import next
|
|
itr = Upper('hello')
|
|
self.assertEqual(next(itr), 'H')
|
|
self.assertEqual(next(itr), 'E')
|
|
# This doesn't work on Py2 because next() isn't defined:
|
|
# self.assertEqual(list(itr), 'LLO')
|
|
|
|
# Check that regular Py2 iterators with just a .next method also work:
|
|
itr2 = iter(['one', 'three', 'five'])
|
|
self.assertEqual(next(itr2), 'one')
|
|
|
|
|
|
##############################################################
|
|
# Below here are the tests from Py3.3'2 test_builtin.py module
|
|
##############################################################
|
|
|
|
from future.backports.test.support import TESTFN, unlink, run_unittest, check_warnings
|
|
import ast
|
|
import collections
|
|
|
|
import io
|
|
import locale
|
|
import os
|
|
import pickle
|
|
import platform
|
|
import random
|
|
import sys
|
|
import traceback
|
|
import types
|
|
# Imported above more portably (using unittest2 on Py2.6):
|
|
import warnings
|
|
from operator import neg
|
|
try:
|
|
import pty, signal
|
|
except ImportError:
|
|
pty = signal = None
|
|
|
|
|
|
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
|
|
# On Py2:
|
|
def __nonzero__(self):
|
|
raise RuntimeError
|
|
|
|
class TestFailingIter:
|
|
def __iter__(self):
|
|
raise RuntimeError
|
|
|
|
def filter_char(arg):
|
|
return ord(arg) > ord("d")
|
|
|
|
def map_char(arg):
|
|
return chr(ord(arg)+1)
|
|
|
|
class BuiltinTest(unittest.TestCase):
|
|
# Helper to check picklability
|
|
def check_iter_pickle(self, it, seq):
|
|
itorg = it
|
|
d = pickle.dumps(it)
|
|
it = pickle.loads(d)
|
|
self.assertEqual(type(itorg), type(it))
|
|
self.assertEqual(list(it), seq)
|
|
|
|
#test the iterator after dropping one from it
|
|
it = pickle.loads(d)
|
|
try:
|
|
next(it)
|
|
except StopIteration:
|
|
return
|
|
d = pickle.dumps(it)
|
|
it = pickle.loads(d)
|
|
self.assertEqual(list(it), seq[1:])
|
|
|
|
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)
|
|
# 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_ascii(self):
|
|
# Was: self.assertEqual(ascii(''), "''") # '\'\'')
|
|
# Heisenbug on Py2.7?!
|
|
self.assertEqual(ascii(0), '0')
|
|
self.assertEqual(ascii(()), '()')
|
|
self.assertEqual(ascii([]), '[]')
|
|
self.assertEqual(ascii({}), '{}')
|
|
a = []
|
|
a.append(a)
|
|
self.assertEqual(ascii(a), '[[...]]')
|
|
a = {}
|
|
a[0] = a
|
|
self.assertEqual(ascii(a), '{0: {...}}')
|
|
# Advanced checks for unicode strings
|
|
def _check_uni(s):
|
|
self.assertEqual(ascii(s), repr(s))
|
|
_check_uni("'")
|
|
_check_uni('"')
|
|
_check_uni('"\'')
|
|
_check_uni('\0')
|
|
_check_uni('\r\n\t .')
|
|
# Unprintable non-ASCII characters
|
|
_check_uni('\x85')
|
|
_check_uni('\u1fff')
|
|
_check_uni('\U00012fff')
|
|
# Lone surrogates
|
|
_check_uni('\ud800')
|
|
_check_uni('\udfff')
|
|
|
|
# Issue #9804: surrogates should be joined even for printable
|
|
# wide characters (UCS-2 builds).
|
|
|
|
# Fails on Py2.7. Was:
|
|
# self.assertEqual(ascii('\U0001d121'), "'\\U0001d121'")
|
|
# # All together
|
|
# s = "'\0\"\n\r\t abcd\x85é\U00012fff\uD800\U0001D121xxx."
|
|
# self.assertEqual(ascii(s),
|
|
# r"""'\'\x00"\n\r\t abcd\x85\xe9\U00012fff\ud800\U0001d121xxx.'""")
|
|
|
|
def test_neg(self):
|
|
x = -sys.maxsize-1
|
|
self.assertTrue(isinstance(x, int))
|
|
self.assertEqual(-x, sys.maxsize+1)
|
|
|
|
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 C1(object): # Was: class C1: (old-style class on Py2)
|
|
def meth(self): pass
|
|
self.assertTrue(callable(C1))
|
|
c = C1()
|
|
self.assertTrue(callable(c.meth))
|
|
self.assertFalse(callable(c))
|
|
|
|
# __call__ is looked up on the class, not the instance
|
|
c.__call__ = None
|
|
self.assertFalse(callable(c))
|
|
c.__call__ = lambda self: 0
|
|
self.assertFalse(callable(c))
|
|
del c.__call__
|
|
self.assertFalse(callable(c))
|
|
|
|
class C2(object):
|
|
def __call__(self): pass
|
|
c2 = C2()
|
|
self.assertTrue(callable(c2))
|
|
c2.__call__ = None
|
|
self.assertTrue(callable(c2))
|
|
class C3(C2): pass
|
|
c3 = C3()
|
|
self.assertTrue(callable(c3))
|
|
|
|
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.assertRaises(TypeError, chr)
|
|
self.assertEqual(chr(0x0000FFFF), "\U0000FFFF")
|
|
self.assertRaises(ValueError, chr, -1)
|
|
self.assertRaises(ValueError, chr, 0x00110000)
|
|
self.assertRaises((OverflowError, ValueError), chr, 2**32)
|
|
|
|
@unittest.skip('FIXME: skip on narrow builds?')
|
|
def test_ord_big(self):
|
|
"""
|
|
These tests seem to fail on OS X (narrow Python build?)
|
|
"""
|
|
self.assertEqual(chr(sys.maxunicode),
|
|
str('\\U0010ffff'.encode("ascii"), 'unicode-escape'))
|
|
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)
|
|
|
|
@unittest.skip('FIXME: skip on narrow builds?')
|
|
def test_chr_big(self):
|
|
"""
|
|
These tests seem to fail on OS X (narrow Python build?)
|
|
"""
|
|
self.assertEqual(ord(chr(0x10FFFF)), 0x10FFFF)
|
|
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")
|
|
|
|
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')
|
|
# Fails on Py2.7:
|
|
# Was: compile(memoryview(b"text"), "name", "exec")
|
|
self.assertRaises(TypeError, compile)
|
|
self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'badmode')
|
|
self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'single', 0xff)
|
|
# Raises TypeError in Python < v3.5, ValueError in v3.5:
|
|
self.assertRaises((TypeError, ValueError), compile, chr(0), 'f', 'exec')
|
|
self.assertRaises(TypeError, compile, 'pass', '?', 'exec',
|
|
mode='eval', source='0', filename='tmp')
|
|
compile('print("\xe5")\n', '', 'exec')
|
|
self.assertRaises(ValueError, compile, str('a = 1'), 'f', 'bad')
|
|
|
|
# test the optimize argument
|
|
# These tests fail on Py2.7 ...
|
|
|
|
# codestr = '''def f():
|
|
# """doc"""
|
|
# try:
|
|
# assert False
|
|
# except AssertionError:
|
|
# return (True, f.__doc__)
|
|
# else:
|
|
# return (False, f.__doc__)
|
|
# '''
|
|
# def f(): """doc"""
|
|
# values = [(-1, __debug__, f.__doc__),
|
|
# (0, True, 'doc'),
|
|
# (1, False, 'doc'),
|
|
# (2, False, None)]
|
|
# for optval, debugval, docstring in values:
|
|
# # test both direct compilation and compilation via AST
|
|
# codeobjs = []
|
|
# codeobjs.append(compile(codestr, "<test>", "exec", optimize=optval))
|
|
# tree = ast.parse(codestr)
|
|
# codeobjs.append(compile(tree, "<test>", "exec", optimize=optval))
|
|
# for code in codeobjs:
|
|
# ns = {}
|
|
# exec_(code, ns)
|
|
# rv = ns['f']()
|
|
# self.assertEqual(rv, (debugval, docstring))
|
|
|
|
def test_delattr(self):
|
|
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)
|
|
self.assertIn('exit', dir(sys))
|
|
|
|
# dir(module_with_invalid__dict__)
|
|
class Foo(types.ModuleType):
|
|
__dict__ = 8
|
|
f = Foo(native_str("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__tuple)
|
|
# Was:
|
|
# class Foo(object):
|
|
# def __dir__(self):
|
|
# return ("b", "c", "a")
|
|
# res = dir(Foo())
|
|
# self.assertIsInstance(res, list)
|
|
# self.assertTrue(res == ["a", "b", "c"])
|
|
|
|
# dir(obj__dir__not_sequence)
|
|
class Foo(object):
|
|
def __dir__(self):
|
|
return 7
|
|
f = Foo()
|
|
self.assertRaises(TypeError, dir, f)
|
|
|
|
# These tests fail on Py2:
|
|
# # dir(traceback)
|
|
# try:
|
|
# raise IndexError
|
|
# except:
|
|
# self.assertEqual(len(dir(sys.exc_info()[2])), 4)
|
|
#
|
|
# # test that object has a __dir__()
|
|
# self.assertEqual(sorted([].__dir__()), dir([]))
|
|
|
|
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(-sys.maxsize-1, -1), (sys.maxsize+1, 0))
|
|
|
|
for num, denom, exp_result in [ (3.25, 1.0, (3.0, 0.25)),
|
|
(-3.25, 1.0, (-4.0, 0.75)),
|
|
(3.25, -1.0, (-4.0, -0.75)),
|
|
(-3.25, -1.0, (3.0, -0.25))]:
|
|
result = divmod(num, denom)
|
|
self.assertAlmostEqual(result[0], exp_result[0])
|
|
self.assertAlmostEqual(result[1], exp_result[1])
|
|
|
|
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)
|
|
if PY3:
|
|
from collections import UserDict
|
|
else:
|
|
from UserDict import UserDict
|
|
eval('[locals() for i in (2,3)]', g, 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 = {}
|
|
|
|
with check_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_globals(self):
|
|
code = compile("print('Hello World!')", "", "exec")
|
|
# no builtin function
|
|
# Was:
|
|
# self.assertRaisesRegex(NameError, "name 'print' is not defined",
|
|
# exec_, code, {'__builtins__': {}})
|
|
# Now:
|
|
self.assertRaises(NameError,
|
|
exec_, code, {'__builtins__': {}})
|
|
# __builtins__ must be a mapping type
|
|
# Was:
|
|
# self.assertRaises(TypeError,
|
|
# exec_, code, {'__builtins__': 123})
|
|
# Raises a NameError again on Py2
|
|
|
|
# no __build_class__ function
|
|
code = compile("class A: pass", "", "exec")
|
|
# Was:
|
|
# self.assertRaisesRegex(NameError, "__build_class__ not found",
|
|
# exec_, code, {'__builtins__': {}})
|
|
self.assertRaises(NameError,
|
|
exec_, code, {'__builtins__': {}})
|
|
|
|
class frozendict_error(Exception):
|
|
pass
|
|
|
|
class frozendict(dict):
|
|
def __setitem__(self, key, value):
|
|
raise frozendict_error("frozendict is readonly")
|
|
|
|
# This test seems to fail with "TypeError: 'module' object is not iterable":
|
|
# # read-only builtins
|
|
# frozen_builtins = frozendict(__builtins__)
|
|
# code = compile("__builtins__['superglobal']=2; print(superglobal)", "test", "exec")
|
|
# self.assertRaises(frozendict_error,
|
|
# exec_, code, {'__builtins__': frozen_builtins})
|
|
|
|
# read-only globals
|
|
namespace = frozendict({})
|
|
code = compile("x=1", "test", "exec")
|
|
self.assertRaises(frozendict_error,
|
|
exec_, code, namespace)
|
|
|
|
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)))
|
|
|
|
@expectedFailurePY2
|
|
def test_filter_pickle(self):
|
|
f1 = filter(filter_char, "abcdeabcde")
|
|
f2 = filter(filter_char, "abcdeabcde")
|
|
self.check_iter_pickle(f1, list(f2))
|
|
|
|
def test_getattr(self):
|
|
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)
|
|
# These tests fail on Py2:
|
|
# self.assertRaises(AttributeError, getattr, sys, chr(sys.maxunicode))
|
|
# unicode surrogates are not encodable to the default encoding (utf8)
|
|
# self.assertRaises(AttributeError, getattr, 1, "\uDAD1\uD51E")
|
|
# This test fails on Py2
|
|
|
|
def test_hasattr(self):
|
|
self.assertTrue(hasattr(sys, 'stdout'))
|
|
self.assertRaises(TypeError, hasattr, sys, 1)
|
|
self.assertRaises(TypeError, hasattr)
|
|
# Fails on Py2:
|
|
# self.assertEqual(False, hasattr(sys, chr(sys.maxunicode)))
|
|
|
|
# Check that hasattr propagates all exceptions outside of
|
|
# AttributeError.
|
|
class A(object):
|
|
def __getattr__(self, what):
|
|
raise SystemExit
|
|
self.assertRaises(SystemExit, hasattr, A(), "b")
|
|
class B(object):
|
|
def __getattr__(self, what):
|
|
raise ValueError
|
|
# Was: self.assertRaises(ValueError, hasattr, B(), "b")
|
|
# Fails on Py2
|
|
|
|
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.assertTrue(isinstance(hash(X()), int))
|
|
class Z(int):
|
|
def __hash__(self):
|
|
return self
|
|
self.assertEqual(hash(Z(42)), hash(42))
|
|
|
|
def test_hex(self):
|
|
self.assertEqual(hex(16), '0x10')
|
|
self.assertEqual(hex(-16), '-0x10')
|
|
self.assertRaises(TypeError, hex, {})
|
|
|
|
def test_id(self):
|
|
id(None)
|
|
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_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.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())
|
|
class InvalidLen:
|
|
def __len__(self):
|
|
return None
|
|
self.assertRaises(TypeError, len, InvalidLen())
|
|
class FloatLen:
|
|
def __len__(self):
|
|
return 4.5
|
|
self.assertRaises(TypeError, len, FloatLen())
|
|
class HugeLen:
|
|
def __len__(self):
|
|
return sys.maxsize + 1
|
|
# Was: self.assertRaises(OverflowError, len, HugeLen())
|
|
class NoLenMethod(object): pass
|
|
self.assertRaises(TypeError, len, NoLenMethod())
|
|
|
|
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)))
|
|
|
|
@expectedFailurePY2
|
|
def test_map_pickle(self):
|
|
m1 = map(map_char, "Is this the real life?")
|
|
m2 = map(map_char, "Is this the real life?")
|
|
self.check_iter_pickle(m1, list(m2))
|
|
|
|
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])
|
|
|
|
self.assertEqual(max([], default=5), 5)
|
|
with self.assertRaises(TypeError):
|
|
max(None, default=5)
|
|
with self.assertRaises(TypeError):
|
|
max(1, 2, default=0)
|
|
self.assertEqual(max([], default=0), 0)
|
|
self.assertIs(max([], default=None), None)
|
|
|
|
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())
|
|
self.assertEqual(max(x for x in [5, 4, 3]), 5)
|
|
|
|
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])
|
|
self.assertEqual(min([], default=5), 5)
|
|
self.assertEqual(min([], default=0), 0)
|
|
self.assertIs(min([], default=None), None)
|
|
with self.assertRaises(TypeError):
|
|
max(None, default=5)
|
|
with self.assertRaises(TypeError):
|
|
max(1, 2, default=0)
|
|
|
|
# Test iterables that can only be looped once #510
|
|
self.assertEqual(min(x for x in [5]), 5)
|
|
|
|
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
|
|
|
|
# Was: it = iter(Iter())
|
|
# Needs this on Py2:
|
|
Iter = implements_iterator(Iter)
|
|
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), '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('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(), '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_open_default_encoding(self):
|
|
old_environ = dict(os.environ)
|
|
try:
|
|
# try to get a user preferred encoding different than the current
|
|
# locale encoding to check that open() uses the current locale
|
|
# encoding and not the user preferred encoding
|
|
for key in ('LC_ALL', 'LANG', 'LC_CTYPE'):
|
|
if key in os.environ:
|
|
del os.environ[key]
|
|
|
|
self.write_testfile()
|
|
current_locale_encoding = locale.getpreferredencoding(False)
|
|
fp = open(TESTFN, 'w')
|
|
try:
|
|
self.assertEqual(fp.encoding, current_locale_encoding)
|
|
finally:
|
|
fp.close()
|
|
unlink(TESTFN)
|
|
finally:
|
|
os.environ.clear()
|
|
os.environ.update(old_environ)
|
|
|
|
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)
|
|
|
|
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.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, int(2), 2.0:
|
|
for y in 10, int(10), 10.0:
|
|
for z in 1000, int(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)
|
|
|
|
# Raises TypeError in Python < v3.5, ValueError in v3.5:
|
|
self.assertRaises((TypeError, ValueError), pow, -1, -2, 3)
|
|
self.assertRaises(ValueError, pow, 1, 2, 0)
|
|
|
|
self.assertRaises(TypeError, pow)
|
|
|
|
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(), '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)
|
|
|
|
@expectedFailurePY2
|
|
@unittest.skipUnless(pty, "the pty and signal modules must be available")
|
|
def check_input_tty(self, prompt, terminal_input, stdio_encoding=None):
|
|
if not sys.stdin.isatty() or not sys.stdout.isatty():
|
|
self.skipTest("stdin and stdout must be ttys")
|
|
r, w = os.pipe()
|
|
try:
|
|
pid, fd = pty.fork()
|
|
except (OSError, AttributeError) as e:
|
|
os.close(r)
|
|
os.close(w)
|
|
self.skipTest("pty.fork() raised {0}".format(e))
|
|
if pid == 0:
|
|
# Child
|
|
try:
|
|
# Make sure we don't get stuck if there's a problem
|
|
signal.alarm(2)
|
|
os.close(r)
|
|
# Check the error handlers are accounted for
|
|
if stdio_encoding:
|
|
sys.stdin = io.TextIOWrapper(sys.stdin.detach(),
|
|
encoding=stdio_encoding,
|
|
errors='surrogateescape')
|
|
sys.stdout = io.TextIOWrapper(sys.stdout.detach(),
|
|
encoding=stdio_encoding,
|
|
errors='replace')
|
|
with open(w, "w") as wpipe:
|
|
print("tty =", sys.stdin.isatty() and sys.stdout.isatty(), file=wpipe)
|
|
print(ascii(input(prompt)), file=wpipe)
|
|
except:
|
|
traceback.print_exc()
|
|
finally:
|
|
# We don't want to return to unittest...
|
|
os._exit(0)
|
|
# Parent
|
|
os.close(w)
|
|
os.write(fd, terminal_input + b"\r\n")
|
|
# Get results from the pipe
|
|
with open(r, "r") as rpipe:
|
|
lines = []
|
|
while True:
|
|
line = rpipe.readline().strip()
|
|
if line == "":
|
|
# The other end was closed => the child exited
|
|
break
|
|
lines.append(line)
|
|
# Check the result was got and corresponds to the user's terminal input
|
|
if len(lines) != 2:
|
|
# Something went wrong, try to get at stderr
|
|
with open(fd, "r", encoding="ascii", errors="ignore") as child_output:
|
|
self.fail("got %d lines in pipe but expected 2, child output was:\n%s"
|
|
% (len(lines), child_output.read()))
|
|
os.close(fd)
|
|
# Check we did exercise the GNU readline path
|
|
self.assertIn(lines[0], set(['tty = True', 'tty = False']))
|
|
if lines[0] != 'tty = True':
|
|
self.skipTest("standard IO in should have been a tty")
|
|
input_result = eval(lines[1]) # ascii() -> eval() roundtrip
|
|
if stdio_encoding:
|
|
expected = terminal_input.decode(stdio_encoding, 'surrogateescape')
|
|
else:
|
|
expected = terminal_input.decode(sys.stdin.encoding) # what else?
|
|
self.assertEqual(input_result, expected)
|
|
|
|
@expectedFailurePY26
|
|
def test_input_tty(self):
|
|
# Test input() functionality when wired to a tty (the code path
|
|
# is different and invokes GNU readline if available).
|
|
self.check_input_tty("prompt", b"quux")
|
|
|
|
@expectedFailurePY26
|
|
def test_input_tty_non_ascii(self):
|
|
# Check stdin/stdout encoding is used when invoking GNU readline
|
|
self.check_input_tty("prompté", b"quux\xe9", "utf-8")
|
|
|
|
@expectedFailurePY26
|
|
def test_input_tty_non_ascii_unicode_errors(self):
|
|
# Check stdin/stdout error handler is used when invoking GNU readline
|
|
self.check_input_tty("prompté", b"quux\xe9", "ascii")
|
|
|
|
# test_int(): see test_int.py for tests of built-in function int().
|
|
|
|
def test_repr(self):
|
|
# Was: self.assertEqual(repr(''), "\'\'")
|
|
# Why is this failing on Py2.7? A Heisenbug ...
|
|
self.assertEqual(repr(0), '0')
|
|
self.assertEqual(repr(()), '()')
|
|
self.assertEqual(repr([]), '[]')
|
|
self.assertEqual(repr({}), '{}')
|
|
|
|
# Future versions of the above:
|
|
self.assertEqual(repr(str('')), '\'\'')
|
|
self.assertEqual(repr(int(0)), '0')
|
|
self.assertEqual(repr(dict({})), '{}')
|
|
self.assertEqual(repr(dict()), '{}')
|
|
|
|
a = []
|
|
a.append(a)
|
|
self.assertEqual(repr(a), '[[...]]')
|
|
a = {}
|
|
a[0] = a
|
|
self.assertEqual(repr(a), '{0: {...}}')
|
|
|
|
@expectedFailurePY2
|
|
def test_round(self):
|
|
self.assertEqual(round(0.0), 0.0)
|
|
# Was: self.assertEqual(type(round(0.0)), int)
|
|
# Now:
|
|
self.assertTrue(isinstance(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)
|
|
# Was:
|
|
# self.assertEqual(type(round(0)), int)
|
|
# self.assertEqual(type(round(-8, -1)), int)
|
|
# self.assertEqual(type(round(-8, 0)), int)
|
|
# self.assertEqual(type(round(-8, 1)), int)
|
|
# Now:
|
|
self.assertTrue(isinstance(round(0), int))
|
|
self.assertTrue(isinstance(round(-8, -1), int))
|
|
self.assertTrue(isinstance(round(-8, 0), int))
|
|
self.assertTrue(isinstance(round(-8, 1), int))
|
|
|
|
# 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)
|
|
|
|
# # 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(PY26)linux_alpha and system_round_bug,
|
|
# "test will fail; failure is probably due to a "
|
|
# "buggy system round function")
|
|
@skip26
|
|
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)
|
|
|
|
# test_str(): see test_unicode.py and test_bytes.py for str() tests.
|
|
|
|
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, [b'a', b'c'], b'')
|
|
# Was:
|
|
# values = [bytearray(b'a'), bytearray(b'b')]
|
|
# self.assertRaises(TypeError, sum, values, bytearray(b''))
|
|
# Currently fails on Py2 -- i.e. sum(values, bytearray(b'')) is allowed
|
|
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(()))
|
|
|
|
# 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()))
|
|
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(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())
|
|
self.assertRaises(RuntimeError, zip, a, TestFailingIter())
|
|
|
|
# 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()))
|
|
|
|
@expectedFailurePY2
|
|
def test_zip_pickle(self):
|
|
a = (1, 2, 3)
|
|
b = (4, 5, 6)
|
|
t = [(1, 4), (2, 5), (3, 6)]
|
|
z1 = zip(a, b)
|
|
self.check_iter_pickle(z1, t)
|
|
|
|
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
|
|
|
|
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())
|
|
|
|
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
|
|
# deprecated
|
|
def test_deprecated_format_string(obj, fmt_str, should_raise_warning):
|
|
if sys.version_info[0] == 3 and sys.version_info[1] >= 4:
|
|
if should_raise_warning:
|
|
self.assertRaises(TypeError, format, obj, fmt_str)
|
|
else:
|
|
try:
|
|
format(obj, fmt_str)
|
|
except TypeError:
|
|
self.fail('object.__format__ raised TypeError unexpectedly')
|
|
else:
|
|
with warnings.catch_warnings(record=True) as w:
|
|
warnings.simplefilter("always", DeprecationWarning)
|
|
format(obj, fmt_str)
|
|
# Was:
|
|
# if should_raise_warning:
|
|
# self.assertEqual(len(w), 1)
|
|
# self.assertIsInstance(w[0].message, DeprecationWarning)
|
|
# self.assertIn('object.__format__ with a non-empty format '
|
|
# 'string', str(w[0].message))
|
|
# else:
|
|
# self.assertEqual(len(w), 0)
|
|
# Py2.7 fails these tests
|
|
|
|
fmt_strs = ['', '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(b"abc")
|
|
self.assertRaises(ValueError, x.translate, b"1", 1)
|
|
self.assertRaises(TypeError, x.translate, b"1"*256, 1)
|
|
|
|
def test_construct_singletons(self):
|
|
for const in None, Ellipsis, NotImplemented:
|
|
tp = type(const)
|
|
# Was: self.assertIs(tp(), const)
|
|
# Fails for Py2
|
|
self.assertRaises(TypeError, tp, 1, 2)
|
|
self.assertRaises(TypeError, tp, a=1, b=2)
|
|
|
|
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_input(self, interpreter='python2'):
|
|
# """
|
|
# Passes in a string to the waiting input()
|
|
# """
|
|
# code = '''
|
|
# from future.builtins import input
|
|
# def greet(name):
|
|
# print "Hello, {0}!".format(name)
|
|
# print "What's your name?"
|
|
# name = input()
|
|
# greet(name)
|
|
# '''
|
|
# with open(self.tempdir + 'input_test_script.py', 'w') as f:
|
|
# f.write(textwrap.dedent(code))
|
|
# p1 = Popen([interpreter, 'input_test_script.py'], stdout=PIPE, stdin=PIPE, stderr=None)
|
|
# (stdout, stderr) = p1.communicate(b'Ed')
|
|
# # print(stdout)
|
|
# # print(stderr)
|
|
# self.assertEqual(stdout, b"What's your name?\nHello, Ed!\n")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|