1638 lines
57 KiB
Python
1638 lines
57 KiB
Python
# Python test set -- built-in functions
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import ast
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import builtins
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import collections
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import io
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import locale
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import os
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import pickle
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import platform
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import random
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import sys
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import traceback
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import types
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import unittest
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import warnings
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from operator import neg
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from test.support import TESTFN, unlink, run_unittest, check_warnings
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from test.script_helper import assert_python_ok
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try:
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import pty, signal
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except ImportError:
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pty = signal = None
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class Squares:
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def __init__(self, max):
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self.max = max
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self.sofar = []
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def __len__(self): return len(self.sofar)
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def __getitem__(self, i):
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if not 0 <= i < self.max: raise IndexError
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n = len(self.sofar)
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while n <= i:
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self.sofar.append(n*n)
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n += 1
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return self.sofar[i]
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class StrSquares:
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def __init__(self, max):
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self.max = max
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self.sofar = []
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def __len__(self):
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return len(self.sofar)
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def __getitem__(self, i):
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if not 0 <= i < self.max:
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raise IndexError
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n = len(self.sofar)
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while n <= i:
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self.sofar.append(str(n*n))
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n += 1
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return self.sofar[i]
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class BitBucket:
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def write(self, line):
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pass
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test_conv_no_sign = [
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('0', 0),
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('1', 1),
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('9', 9),
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('10', 10),
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('99', 99),
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('100', 100),
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('314', 314),
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(' 314', 314),
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('314 ', 314),
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(' \t\t 314 \t\t ', 314),
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(repr(sys.maxsize), sys.maxsize),
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(' 1x', ValueError),
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(' 1 ', 1),
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(' 1\02 ', ValueError),
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('', ValueError),
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(' ', ValueError),
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(' \t\t ', ValueError),
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(str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314),
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(chr(0x200), ValueError),
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]
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test_conv_sign = [
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('0', 0),
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('1', 1),
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('9', 9),
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('10', 10),
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('99', 99),
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('100', 100),
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('314', 314),
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(' 314', ValueError),
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('314 ', 314),
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(' \t\t 314 \t\t ', ValueError),
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(repr(sys.maxsize), sys.maxsize),
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(' 1x', ValueError),
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(' 1 ', ValueError),
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(' 1\02 ', ValueError),
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('', ValueError),
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(' ', ValueError),
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(' \t\t ', ValueError),
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(str(b'\u0663\u0661\u0664 ','raw-unicode-escape'), 314),
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(chr(0x200), ValueError),
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]
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class TestFailingBool:
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def __bool__(self):
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raise RuntimeError
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class TestFailingIter:
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def __iter__(self):
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raise RuntimeError
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def filter_char(arg):
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return ord(arg) > ord("d")
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def map_char(arg):
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return chr(ord(arg)+1)
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class BuiltinTest(unittest.TestCase):
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# Helper to check picklability
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def check_iter_pickle(self, it, seq):
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itorg = it
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d = pickle.dumps(it)
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it = pickle.loads(d)
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self.assertEqual(type(itorg), type(it))
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self.assertEqual(list(it), seq)
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#test the iterator after dropping one from it
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it = pickle.loads(d)
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try:
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next(it)
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except StopIteration:
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return
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d = pickle.dumps(it)
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it = pickle.loads(d)
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self.assertEqual(list(it), seq[1:])
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def test_import(self):
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__import__('sys')
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__import__('time')
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__import__('string')
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__import__(name='sys')
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__import__(name='time', level=0)
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self.assertRaises(ImportError, __import__, 'spamspam')
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self.assertRaises(TypeError, __import__, 1, 2, 3, 4)
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self.assertRaises(ValueError, __import__, '')
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self.assertRaises(TypeError, __import__, 'sys', name='sys')
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def test_abs(self):
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# int
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self.assertEqual(abs(0), 0)
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self.assertEqual(abs(1234), 1234)
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self.assertEqual(abs(-1234), 1234)
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self.assertTrue(abs(-sys.maxsize-1) > 0)
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# float
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self.assertEqual(abs(0.0), 0.0)
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self.assertEqual(abs(3.14), 3.14)
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self.assertEqual(abs(-3.14), 3.14)
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# str
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self.assertRaises(TypeError, abs, 'a')
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# bool
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self.assertEqual(abs(True), 1)
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self.assertEqual(abs(False), 0)
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# other
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self.assertRaises(TypeError, abs)
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self.assertRaises(TypeError, abs, None)
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class AbsClass(object):
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def __abs__(self):
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return -5
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self.assertEqual(abs(AbsClass()), -5)
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def test_all(self):
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self.assertEqual(all([2, 4, 6]), True)
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self.assertEqual(all([2, None, 6]), False)
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self.assertRaises(RuntimeError, all, [2, TestFailingBool(), 6])
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self.assertRaises(RuntimeError, all, TestFailingIter())
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self.assertRaises(TypeError, all, 10) # Non-iterable
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self.assertRaises(TypeError, all) # No args
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self.assertRaises(TypeError, all, [2, 4, 6], []) # Too many args
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self.assertEqual(all([]), True) # Empty iterator
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self.assertEqual(all([0, TestFailingBool()]), False)# Short-circuit
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S = [50, 60]
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self.assertEqual(all(x > 42 for x in S), True)
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S = [50, 40, 60]
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self.assertEqual(all(x > 42 for x in S), False)
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def test_any(self):
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self.assertEqual(any([None, None, None]), False)
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self.assertEqual(any([None, 4, None]), True)
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self.assertRaises(RuntimeError, any, [None, TestFailingBool(), 6])
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self.assertRaises(RuntimeError, any, TestFailingIter())
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self.assertRaises(TypeError, any, 10) # Non-iterable
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self.assertRaises(TypeError, any) # No args
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self.assertRaises(TypeError, any, [2, 4, 6], []) # Too many args
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self.assertEqual(any([]), False) # Empty iterator
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self.assertEqual(any([1, TestFailingBool()]), True) # Short-circuit
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S = [40, 60, 30]
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self.assertEqual(any(x > 42 for x in S), True)
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S = [10, 20, 30]
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self.assertEqual(any(x > 42 for x in S), False)
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def test_ascii(self):
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self.assertEqual(ascii(''), '\'\'')
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self.assertEqual(ascii(0), '0')
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self.assertEqual(ascii(()), '()')
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self.assertEqual(ascii([]), '[]')
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self.assertEqual(ascii({}), '{}')
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a = []
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a.append(a)
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self.assertEqual(ascii(a), '[[...]]')
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a = {}
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a[0] = a
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self.assertEqual(ascii(a), '{0: {...}}')
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# Advanced checks for unicode strings
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def _check_uni(s):
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self.assertEqual(ascii(s), repr(s))
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_check_uni("'")
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_check_uni('"')
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_check_uni('"\'')
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_check_uni('\0')
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_check_uni('\r\n\t .')
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# Unprintable non-ASCII characters
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_check_uni('\x85')
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_check_uni('\u1fff')
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_check_uni('\U00012fff')
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# Lone surrogates
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_check_uni('\ud800')
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_check_uni('\udfff')
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# Issue #9804: surrogates should be joined even for printable
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# wide characters (UCS-2 builds).
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self.assertEqual(ascii('\U0001d121'), "'\\U0001d121'")
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# All together
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s = "'\0\"\n\r\t abcd\x85é\U00012fff\uD800\U0001D121xxx."
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self.assertEqual(ascii(s),
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r"""'\'\x00"\n\r\t abcd\x85\xe9\U00012fff\ud800\U0001d121xxx.'""")
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def test_neg(self):
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x = -sys.maxsize-1
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self.assertTrue(isinstance(x, int))
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self.assertEqual(-x, sys.maxsize+1)
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def test_callable(self):
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self.assertTrue(callable(len))
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self.assertFalse(callable("a"))
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self.assertTrue(callable(callable))
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self.assertTrue(callable(lambda x, y: x + y))
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self.assertFalse(callable(__builtins__))
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def f(): pass
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self.assertTrue(callable(f))
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class C1:
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def meth(self): pass
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self.assertTrue(callable(C1))
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c = C1()
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self.assertTrue(callable(c.meth))
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self.assertFalse(callable(c))
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# __call__ is looked up on the class, not the instance
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c.__call__ = None
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self.assertFalse(callable(c))
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c.__call__ = lambda self: 0
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self.assertFalse(callable(c))
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del c.__call__
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self.assertFalse(callable(c))
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class C2(object):
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def __call__(self): pass
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c2 = C2()
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self.assertTrue(callable(c2))
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c2.__call__ = None
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self.assertTrue(callable(c2))
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class C3(C2): pass
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c3 = C3()
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self.assertTrue(callable(c3))
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def test_chr(self):
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self.assertEqual(chr(32), ' ')
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self.assertEqual(chr(65), 'A')
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self.assertEqual(chr(97), 'a')
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self.assertEqual(chr(0xff), '\xff')
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self.assertRaises(ValueError, chr, 1<<24)
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self.assertEqual(chr(sys.maxunicode),
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str('\\U0010ffff'.encode("ascii"), 'unicode-escape'))
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self.assertRaises(TypeError, chr)
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self.assertEqual(chr(0x0000FFFF), "\U0000FFFF")
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self.assertEqual(chr(0x00010000), "\U00010000")
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self.assertEqual(chr(0x00010001), "\U00010001")
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self.assertEqual(chr(0x000FFFFE), "\U000FFFFE")
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self.assertEqual(chr(0x000FFFFF), "\U000FFFFF")
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self.assertEqual(chr(0x00100000), "\U00100000")
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self.assertEqual(chr(0x00100001), "\U00100001")
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self.assertEqual(chr(0x0010FFFE), "\U0010FFFE")
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self.assertEqual(chr(0x0010FFFF), "\U0010FFFF")
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self.assertRaises(ValueError, chr, -1)
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self.assertRaises(ValueError, chr, 0x00110000)
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self.assertRaises((OverflowError, ValueError), chr, 2**32)
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def test_cmp(self):
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self.assertTrue(not hasattr(builtins, "cmp"))
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def test_compile(self):
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compile('print(1)\n', '', 'exec')
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bom = b'\xef\xbb\xbf'
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compile(bom + b'print(1)\n', '', 'exec')
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compile(source='pass', filename='?', mode='exec')
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compile(dont_inherit=0, filename='tmp', source='0', mode='eval')
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compile('pass', '?', dont_inherit=1, mode='exec')
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compile(memoryview(b"text"), "name", "exec")
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self.assertRaises(TypeError, compile)
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self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'badmode')
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self.assertRaises(ValueError, compile, 'print(42)\n', '<string>', 'single', 0xff)
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self.assertRaises(ValueError, compile, chr(0), 'f', 'exec')
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self.assertRaises(TypeError, compile, 'pass', '?', 'exec',
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mode='eval', source='0', filename='tmp')
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compile('print("\xe5")\n', '', 'exec')
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self.assertRaises(ValueError, compile, chr(0), 'f', 'exec')
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self.assertRaises(ValueError, compile, str('a = 1'), 'f', 'bad')
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# test the optimize argument
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codestr = '''def f():
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"""doc"""
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try:
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assert False
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except AssertionError:
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return (True, f.__doc__)
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else:
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return (False, f.__doc__)
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'''
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def f(): """doc"""
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values = [(-1, __debug__, f.__doc__),
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(0, True, 'doc'),
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(1, False, 'doc'),
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(2, False, None)]
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for optval, debugval, docstring in values:
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# test both direct compilation and compilation via AST
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codeobjs = []
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codeobjs.append(compile(codestr, "<test>", "exec", optimize=optval))
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tree = ast.parse(codestr)
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codeobjs.append(compile(tree, "<test>", "exec", optimize=optval))
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for code in codeobjs:
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ns = {}
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exec(code, ns)
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rv = ns['f']()
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self.assertEqual(rv, (debugval, docstring))
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def test_delattr(self):
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sys.spam = 1
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delattr(sys, 'spam')
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self.assertRaises(TypeError, delattr)
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def test_dir(self):
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# dir(wrong number of arguments)
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self.assertRaises(TypeError, dir, 42, 42)
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# dir() - local scope
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local_var = 1
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self.assertIn('local_var', dir())
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# dir(module)
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self.assertIn('exit', dir(sys))
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# dir(module_with_invalid__dict__)
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class Foo(types.ModuleType):
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__dict__ = 8
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f = Foo("foo")
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self.assertRaises(TypeError, dir, f)
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# dir(type)
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self.assertIn("strip", dir(str))
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self.assertNotIn("__mro__", dir(str))
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# dir(obj)
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class Foo(object):
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def __init__(self):
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self.x = 7
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self.y = 8
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self.z = 9
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f = Foo()
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self.assertIn("y", dir(f))
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# dir(obj_no__dict__)
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class Foo(object):
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__slots__ = []
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f = Foo()
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self.assertIn("__repr__", dir(f))
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# dir(obj_no__class__with__dict__)
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# (an ugly trick to cause getattr(f, "__class__") to fail)
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class Foo(object):
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__slots__ = ["__class__", "__dict__"]
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def __init__(self):
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self.bar = "wow"
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f = Foo()
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self.assertNotIn("__repr__", dir(f))
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self.assertIn("bar", dir(f))
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|
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# dir(obj_using __dir__)
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class Foo(object):
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def __dir__(self):
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return ["kan", "ga", "roo"]
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f = Foo()
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self.assertTrue(dir(f) == ["ga", "kan", "roo"])
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|
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# dir(obj__dir__tuple)
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class Foo(object):
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def __dir__(self):
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return ("b", "c", "a")
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res = dir(Foo())
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self.assertIsInstance(res, list)
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self.assertTrue(res == ["a", "b", "c"])
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|
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# dir(obj__dir__not_sequence)
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class Foo(object):
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def __dir__(self):
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return 7
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f = Foo()
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self.assertRaises(TypeError, dir, f)
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|
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# dir(traceback)
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try:
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raise IndexError
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except:
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self.assertEqual(len(dir(sys.exc_info()[2])), 4)
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|
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# test that object has a __dir__()
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self.assertEqual(sorted([].__dir__()), dir([]))
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|
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def test_divmod(self):
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self.assertEqual(divmod(12, 7), (1, 5))
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self.assertEqual(divmod(-12, 7), (-2, 2))
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self.assertEqual(divmod(12, -7), (-2, -2))
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self.assertEqual(divmod(-12, -7), (1, -5))
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|
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self.assertEqual(divmod(-sys.maxsize-1, -1), (sys.maxsize+1, 0))
|
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|
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for num, denom, exp_result in [ (3.25, 1.0, (3.0, 0.25)),
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(-3.25, 1.0, (-4.0, 0.75)),
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(3.25, -1.0, (-4.0, -0.75)),
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(-3.25, -1.0, (3.0, -0.25))]:
|
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result = divmod(num, denom)
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self.assertAlmostEqual(result[0], exp_result[0])
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self.assertAlmostEqual(result[1], exp_result[1])
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self.assertRaises(TypeError, divmod)
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|
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def test_eval(self):
|
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self.assertEqual(eval('1+1'), 2)
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self.assertEqual(eval(' 1+1\n'), 2)
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globals = {'a': 1, 'b': 2}
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locals = {'b': 200, 'c': 300}
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self.assertEqual(eval('a', globals) , 1)
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self.assertEqual(eval('a', globals, locals), 1)
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self.assertEqual(eval('b', globals, locals), 200)
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self.assertEqual(eval('c', globals, locals), 300)
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globals = {'a': 1, 'b': 2}
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locals = {'b': 200, 'c': 300}
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bom = b'\xef\xbb\xbf'
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self.assertEqual(eval(bom + b'a', globals, locals), 1)
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self.assertEqual(eval('"\xe5"', globals), "\xe5")
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self.assertRaises(TypeError, eval)
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self.assertRaises(TypeError, eval, ())
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self.assertRaises(SyntaxError, eval, bom[:2] + b'a')
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|
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class X:
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def __getitem__(self, key):
|
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raise ValueError
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self.assertRaises(ValueError, eval, "foo", {}, X())
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|
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def test_general_eval(self):
|
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# Tests that general mappings can be used for the locals argument
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class M:
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"Test mapping interface versus possible calls from eval()."
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def __getitem__(self, key):
|
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if key == 'a':
|
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return 12
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raise KeyError
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def keys(self):
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return list('xyz')
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|
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m = M()
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g = globals()
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self.assertEqual(eval('a', g, m), 12)
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self.assertRaises(NameError, eval, 'b', g, m)
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self.assertEqual(eval('dir()', g, m), list('xyz'))
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self.assertEqual(eval('globals()', g, m), g)
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self.assertEqual(eval('locals()', g, m), m)
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self.assertRaises(TypeError, eval, 'a', m)
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class A:
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"Non-mapping"
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pass
|
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m = A()
|
|
self.assertRaises(TypeError, eval, 'a', g, m)
|
|
|
|
# Verify that dict subclasses work as well
|
|
class D(dict):
|
|
def __getitem__(self, key):
|
|
if key == 'a':
|
|
return 12
|
|
return dict.__getitem__(self, key)
|
|
def keys(self):
|
|
return list('xyz')
|
|
|
|
d = D()
|
|
self.assertEqual(eval('a', g, d), 12)
|
|
self.assertRaises(NameError, eval, 'b', g, d)
|
|
self.assertEqual(eval('dir()', g, d), list('xyz'))
|
|
self.assertEqual(eval('globals()', g, d), g)
|
|
self.assertEqual(eval('locals()', g, d), d)
|
|
|
|
# Verify locals stores (used by list comps)
|
|
eval('[locals() for i in (2,3)]', g, d)
|
|
eval('[locals() for i in (2,3)]', g, collections.UserDict())
|
|
|
|
class SpreadSheet:
|
|
"Sample application showing nested, calculated lookups."
|
|
_cells = {}
|
|
def __setitem__(self, key, formula):
|
|
self._cells[key] = formula
|
|
def __getitem__(self, key):
|
|
return eval(self._cells[key], globals(), self)
|
|
|
|
ss = SpreadSheet()
|
|
ss['a1'] = '5'
|
|
ss['a2'] = 'a1*6'
|
|
ss['a3'] = 'a2*7'
|
|
self.assertEqual(ss['a3'], 210)
|
|
|
|
# Verify that dir() catches a non-list returned by eval
|
|
# SF bug #1004669
|
|
class C:
|
|
def __getitem__(self, item):
|
|
raise KeyError(item)
|
|
def keys(self):
|
|
return 1 # used to be 'a' but that's no longer an error
|
|
self.assertRaises(TypeError, eval, 'dir()', globals(), C())
|
|
|
|
def test_exec(self):
|
|
g = {}
|
|
exec('z = 1', g)
|
|
if '__builtins__' in g:
|
|
del g['__builtins__']
|
|
self.assertEqual(g, {'z': 1})
|
|
|
|
exec('z = 1+1', g)
|
|
if '__builtins__' in g:
|
|
del g['__builtins__']
|
|
self.assertEqual(g, {'z': 2})
|
|
g = {}
|
|
l = {}
|
|
|
|
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
|
|
self.assertRaisesRegex(NameError, "name 'print' is not defined",
|
|
exec, code, {'__builtins__': {}})
|
|
# __builtins__ must be a mapping type
|
|
self.assertRaises(TypeError,
|
|
exec, code, {'__builtins__': 123})
|
|
|
|
# no __build_class__ function
|
|
code = compile("class A: pass", "", "exec")
|
|
self.assertRaisesRegex(NameError, "__build_class__ not found",
|
|
exec, code, {'__builtins__': {}})
|
|
|
|
class frozendict_error(Exception):
|
|
pass
|
|
|
|
class frozendict(dict):
|
|
def __setitem__(self, key, value):
|
|
raise frozendict_error("frozendict is readonly")
|
|
|
|
# read-only builtins
|
|
if isinstance(__builtins__, types.ModuleType):
|
|
frozen_builtins = frozendict(__builtins__.__dict__)
|
|
else:
|
|
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)))
|
|
|
|
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)
|
|
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")
|
|
|
|
def test_hasattr(self):
|
|
self.assertTrue(hasattr(sys, 'stdout'))
|
|
self.assertRaises(TypeError, hasattr, sys, 1)
|
|
self.assertRaises(TypeError, hasattr)
|
|
self.assertEqual(False, hasattr(sys, chr(sys.maxunicode)))
|
|
|
|
# Check that hasattr propagates all exceptions outside of
|
|
# AttributeError.
|
|
class A:
|
|
def __getattr__(self, what):
|
|
raise SystemExit
|
|
self.assertRaises(SystemExit, hasattr, A(), "b")
|
|
class B:
|
|
def __getattr__(self, what):
|
|
raise ValueError
|
|
self.assertRaises(ValueError, hasattr, B(), "b")
|
|
|
|
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.assertEqual(type(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
|
|
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)))
|
|
|
|
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)
|
|
|
|
self.assertRaises(TypeError, max)
|
|
self.assertRaises(TypeError, max, 42)
|
|
self.assertRaises(ValueError, max, ())
|
|
class BadSeq:
|
|
def __getitem__(self, index):
|
|
raise ValueError
|
|
self.assertRaises(ValueError, max, BadSeq())
|
|
|
|
for stmt in (
|
|
"max(key=int)", # no args
|
|
"max(default=None)",
|
|
"max(1, 2, default=None)", # require container for default
|
|
"max(default=None, key=int)",
|
|
"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
|
|
|
|
self.assertEqual(max((), default=None), None) # zero elem iterable
|
|
self.assertEqual(max((1,), default=None), 1) # one elem iterable
|
|
self.assertEqual(max((1,2), default=None), 2) # two elem iterable
|
|
|
|
self.assertEqual(max((), default=1, key=neg), 1)
|
|
self.assertEqual(max((1, 2), default=3, key=neg), 1)
|
|
|
|
data = [random.randrange(200) for i in range(100)]
|
|
keys = dict((elem, random.randrange(50)) for elem in data)
|
|
f = keys.__getitem__
|
|
self.assertEqual(max(data, key=f),
|
|
sorted(reversed(data), key=f)[-1])
|
|
|
|
def test_min(self):
|
|
self.assertEqual(min('123123'), '1')
|
|
self.assertEqual(min(1, 2, 3), 1)
|
|
self.assertEqual(min((1, 2, 3, 1, 2, 3)), 1)
|
|
self.assertEqual(min([1, 2, 3, 1, 2, 3]), 1)
|
|
|
|
self.assertEqual(min(1, 2, 3.0), 1)
|
|
self.assertEqual(min(1, 2.0, 3), 1)
|
|
self.assertEqual(min(1.0, 2, 3), 1.0)
|
|
|
|
self.assertRaises(TypeError, min)
|
|
self.assertRaises(TypeError, min, 42)
|
|
self.assertRaises(ValueError, min, ())
|
|
class BadSeq:
|
|
def __getitem__(self, index):
|
|
raise ValueError
|
|
self.assertRaises(ValueError, min, BadSeq())
|
|
|
|
for stmt in (
|
|
"min(key=int)", # no args
|
|
"min(default=None)",
|
|
"min(1, 2, default=None)", # require container for default
|
|
"min(default=None, key=int)",
|
|
"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
|
|
|
|
self.assertEqual(min((), default=None), None) # zero elem iterable
|
|
self.assertEqual(min((1,), default=None), 1) # one elem iterable
|
|
self.assertEqual(min((1,2), default=None), 1) # two elem iterable
|
|
|
|
self.assertEqual(min((), default=1, key=neg), 1)
|
|
self.assertEqual(min((1, 2), default=1, key=neg), 2)
|
|
|
|
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), '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')
|
|
self.addCleanup(unlink, TESTFN)
|
|
with fp:
|
|
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)
|
|
|
|
def test_open(self):
|
|
self.write_testfile()
|
|
fp = open(TESTFN, 'r')
|
|
with fp:
|
|
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)
|
|
|
|
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')
|
|
with fp:
|
|
self.assertEqual(fp.encoding, current_locale_encoding)
|
|
finally:
|
|
os.environ.clear()
|
|
os.environ.update(old_environ)
|
|
|
|
def test_open_non_inheritable(self):
|
|
fileobj = open(__file__)
|
|
with fileobj:
|
|
self.assertFalse(os.get_inheritable(fileobj.fileno()))
|
|
|
|
def test_ord(self):
|
|
self.assertEqual(ord(' '), 32)
|
|
self.assertEqual(ord('A'), 65)
|
|
self.assertEqual(ord('a'), 97)
|
|
self.assertEqual(ord('\x80'), 128)
|
|
self.assertEqual(ord('\xff'), 255)
|
|
|
|
self.assertEqual(ord(b' '), 32)
|
|
self.assertEqual(ord(b'A'), 65)
|
|
self.assertEqual(ord(b'a'), 97)
|
|
self.assertEqual(ord(b'\x80'), 128)
|
|
self.assertEqual(ord(b'\xff'), 255)
|
|
|
|
self.assertEqual(ord(chr(sys.maxunicode)), sys.maxunicode)
|
|
self.assertRaises(TypeError, ord, 42)
|
|
|
|
self.assertEqual(ord(chr(0x10FFFF)), 0x10FFFF)
|
|
self.assertEqual(ord("\U0000FFFF"), 0x0000FFFF)
|
|
self.assertEqual(ord("\U00010000"), 0x00010000)
|
|
self.assertEqual(ord("\U00010001"), 0x00010001)
|
|
self.assertEqual(ord("\U000FFFFE"), 0x000FFFFE)
|
|
self.assertEqual(ord("\U000FFFFF"), 0x000FFFFF)
|
|
self.assertEqual(ord("\U00100000"), 0x00100000)
|
|
self.assertEqual(ord("\U00100001"), 0x00100001)
|
|
self.assertEqual(ord("\U0010FFFE"), 0x0010FFFE)
|
|
self.assertEqual(ord("\U0010FFFF"), 0x0010FFFF)
|
|
|
|
def test_pow(self):
|
|
self.assertEqual(pow(0,0), 1)
|
|
self.assertEqual(pow(0,1), 0)
|
|
self.assertEqual(pow(1,0), 1)
|
|
self.assertEqual(pow(1,1), 1)
|
|
|
|
self.assertEqual(pow(2,0), 1)
|
|
self.assertEqual(pow(2,10), 1024)
|
|
self.assertEqual(pow(2,20), 1024*1024)
|
|
self.assertEqual(pow(2,30), 1024*1024*1024)
|
|
|
|
self.assertEqual(pow(-2,0), 1)
|
|
self.assertEqual(pow(-2,1), -2)
|
|
self.assertEqual(pow(-2,2), 4)
|
|
self.assertEqual(pow(-2,3), -8)
|
|
|
|
self.assertAlmostEqual(pow(0.,0), 1.)
|
|
self.assertAlmostEqual(pow(0.,1), 0.)
|
|
self.assertAlmostEqual(pow(1.,0), 1.)
|
|
self.assertAlmostEqual(pow(1.,1), 1.)
|
|
|
|
self.assertAlmostEqual(pow(2.,0), 1.)
|
|
self.assertAlmostEqual(pow(2.,10), 1024.)
|
|
self.assertAlmostEqual(pow(2.,20), 1024.*1024.)
|
|
self.assertAlmostEqual(pow(2.,30), 1024.*1024.*1024.)
|
|
|
|
self.assertAlmostEqual(pow(-2.,0), 1.)
|
|
self.assertAlmostEqual(pow(-2.,1), -2.)
|
|
self.assertAlmostEqual(pow(-2.,2), 4.)
|
|
self.assertAlmostEqual(pow(-2.,3), -8.)
|
|
|
|
for x in 2, 2.0:
|
|
for y in 10, 10.0:
|
|
for z in 1000, 1000.0:
|
|
if isinstance(x, float) or \
|
|
isinstance(y, float) or \
|
|
isinstance(z, float):
|
|
self.assertRaises(TypeError, pow, x, y, z)
|
|
else:
|
|
self.assertAlmostEqual(pow(x, y, z), 24.0)
|
|
|
|
self.assertAlmostEqual(pow(-1, 0.5), 1j)
|
|
self.assertAlmostEqual(pow(-1, 1/3), 0.5 + 0.8660254037844386j)
|
|
|
|
self.assertRaises(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()
|
|
|
|
@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 {}".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], {'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)
|
|
|
|
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")
|
|
|
|
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")
|
|
|
|
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):
|
|
self.assertEqual(repr(''), '\'\'')
|
|
self.assertEqual(repr(0), '0')
|
|
self.assertEqual(repr(()), '()')
|
|
self.assertEqual(repr([]), '[]')
|
|
self.assertEqual(repr({}), '{}')
|
|
a = []
|
|
a.append(a)
|
|
self.assertEqual(repr(a), '[[...]]')
|
|
a = {}
|
|
a[0] = a
|
|
self.assertEqual(repr(a), '{0: {...}}')
|
|
|
|
def test_round(self):
|
|
self.assertEqual(round(0.0), 0.0)
|
|
self.assertEqual(type(round(0.0)), int)
|
|
self.assertEqual(round(1.0), 1.0)
|
|
self.assertEqual(round(10.0), 10.0)
|
|
self.assertEqual(round(1000000000.0), 1000000000.0)
|
|
self.assertEqual(round(1e20), 1e20)
|
|
|
|
self.assertEqual(round(-1.0), -1.0)
|
|
self.assertEqual(round(-10.0), -10.0)
|
|
self.assertEqual(round(-1000000000.0), -1000000000.0)
|
|
self.assertEqual(round(-1e20), -1e20)
|
|
|
|
self.assertEqual(round(0.1), 0.0)
|
|
self.assertEqual(round(1.1), 1.0)
|
|
self.assertEqual(round(10.1), 10.0)
|
|
self.assertEqual(round(1000000000.1), 1000000000.0)
|
|
|
|
self.assertEqual(round(-1.1), -1.0)
|
|
self.assertEqual(round(-10.1), -10.0)
|
|
self.assertEqual(round(-1000000000.1), -1000000000.0)
|
|
|
|
self.assertEqual(round(0.9), 1.0)
|
|
self.assertEqual(round(9.9), 10.0)
|
|
self.assertEqual(round(999999999.9), 1000000000.0)
|
|
|
|
self.assertEqual(round(-0.9), -1.0)
|
|
self.assertEqual(round(-9.9), -10.0)
|
|
self.assertEqual(round(-999999999.9), -1000000000.0)
|
|
|
|
self.assertEqual(round(-8.0, -1), -10.0)
|
|
self.assertEqual(type(round(-8.0, -1)), float)
|
|
|
|
self.assertEqual(type(round(-8.0, 0)), float)
|
|
self.assertEqual(type(round(-8.0, 1)), float)
|
|
|
|
# Check even / odd rounding behaviour
|
|
self.assertEqual(round(5.5), 6)
|
|
self.assertEqual(round(6.5), 6)
|
|
self.assertEqual(round(-5.5), -6)
|
|
self.assertEqual(round(-6.5), -6)
|
|
|
|
# Check behavior on ints
|
|
self.assertEqual(round(0), 0)
|
|
self.assertEqual(round(8), 8)
|
|
self.assertEqual(round(-8), -8)
|
|
self.assertEqual(type(round(0)), int)
|
|
self.assertEqual(type(round(-8, -1)), int)
|
|
self.assertEqual(type(round(-8, 0)), int)
|
|
self.assertEqual(type(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(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)
|
|
|
|
# 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'')
|
|
values = [bytearray(b'a'), bytearray(b'b')]
|
|
self.assertRaises(TypeError, sum, values, bytearray(b''))
|
|
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()))
|
|
|
|
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):
|
|
if should_raise:
|
|
self.assertRaises(TypeError, format, obj, fmt_str)
|
|
else:
|
|
format(obj, fmt_str)
|
|
|
|
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)
|
|
self.assertIs(tp(), const)
|
|
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)
|
|
|
|
|
|
class ShutdownTest(unittest.TestCase):
|
|
|
|
def test_cleanup(self):
|
|
# Issue #19255: builtins are still available at shutdown
|
|
code = """if 1:
|
|
import builtins
|
|
import sys
|
|
|
|
class C:
|
|
def __del__(self):
|
|
print("before")
|
|
# Check that builtins still exist
|
|
len(())
|
|
print("after")
|
|
|
|
c = C()
|
|
# Make this module survive until builtins and sys are cleaned
|
|
builtins.here = sys.modules[__name__]
|
|
sys.here = sys.modules[__name__]
|
|
# Create a reference loop so that this module needs to go
|
|
# through a GC phase.
|
|
here = sys.modules[__name__]
|
|
"""
|
|
# Issue #20599: Force ASCII encoding to get a codec implemented in C,
|
|
# otherwise the codec may be unloaded before C.__del__() is called, and
|
|
# so print("before") fails because the codec cannot be used to encode
|
|
# "before" to sys.stdout.encoding. For example, on Windows,
|
|
# sys.stdout.encoding is the OEM code page and these code pages are
|
|
# implemented in Python
|
|
rc, out, err = assert_python_ok("-c", code,
|
|
PYTHONIOENCODING="ascii")
|
|
self.assertEqual(["before", "after"], out.decode().splitlines())
|
|
|
|
|
|
def load_tests(loader, tests, pattern):
|
|
from doctest import DocTestSuite
|
|
tests.addTest(DocTestSuite(builtins))
|
|
return tests
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|