mirror of
https://github.com/python/cpython.git
synced 2024-11-27 20:04:41 +08:00
411 lines
14 KiB
Python
411 lines
14 KiB
Python
"""
|
|
Tests common to tuple, list and UserList.UserList
|
|
"""
|
|
|
|
import unittest
|
|
import sys
|
|
import pickle
|
|
|
|
# Various iterables
|
|
# This is used for checking the constructor (here and in test_deque.py)
|
|
def iterfunc(seqn):
|
|
'Regular generator'
|
|
for i in seqn:
|
|
yield i
|
|
|
|
class Sequence:
|
|
'Sequence using __getitem__'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
def __getitem__(self, i):
|
|
return self.seqn[i]
|
|
|
|
class IterFunc:
|
|
'Sequence using iterator protocol'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
self.i = 0
|
|
def __iter__(self):
|
|
return self
|
|
def __next__(self):
|
|
if self.i >= len(self.seqn): raise StopIteration
|
|
v = self.seqn[self.i]
|
|
self.i += 1
|
|
return v
|
|
|
|
class IterGen:
|
|
'Sequence using iterator protocol defined with a generator'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
self.i = 0
|
|
def __iter__(self):
|
|
for val in self.seqn:
|
|
yield val
|
|
|
|
class IterNextOnly:
|
|
'Missing __getitem__ and __iter__'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
self.i = 0
|
|
def __next__(self):
|
|
if self.i >= len(self.seqn): raise StopIteration
|
|
v = self.seqn[self.i]
|
|
self.i += 1
|
|
return v
|
|
|
|
class IterNoNext:
|
|
'Iterator missing __next__()'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
self.i = 0
|
|
def __iter__(self):
|
|
return self
|
|
|
|
class IterGenExc:
|
|
'Test propagation of exceptions'
|
|
def __init__(self, seqn):
|
|
self.seqn = seqn
|
|
self.i = 0
|
|
def __iter__(self):
|
|
return self
|
|
def __next__(self):
|
|
3 // 0
|
|
|
|
class IterFuncStop:
|
|
'Test immediate stop'
|
|
def __init__(self, seqn):
|
|
pass
|
|
def __iter__(self):
|
|
return self
|
|
def __next__(self):
|
|
raise StopIteration
|
|
|
|
from itertools import chain
|
|
def itermulti(seqn):
|
|
'Test multiple tiers of iterators'
|
|
return chain(map(lambda x:x, iterfunc(IterGen(Sequence(seqn)))))
|
|
|
|
class LyingTuple(tuple):
|
|
def __iter__(self):
|
|
yield 1
|
|
|
|
class LyingList(list):
|
|
def __iter__(self):
|
|
yield 1
|
|
|
|
class CommonTest(unittest.TestCase):
|
|
# The type to be tested
|
|
type2test = None
|
|
|
|
def test_constructors(self):
|
|
l0 = []
|
|
l1 = [0]
|
|
l2 = [0, 1]
|
|
|
|
u = self.type2test()
|
|
u0 = self.type2test(l0)
|
|
u1 = self.type2test(l1)
|
|
u2 = self.type2test(l2)
|
|
|
|
uu = self.type2test(u)
|
|
uu0 = self.type2test(u0)
|
|
uu1 = self.type2test(u1)
|
|
uu2 = self.type2test(u2)
|
|
|
|
v = self.type2test(tuple(u))
|
|
class OtherSeq:
|
|
def __init__(self, initseq):
|
|
self.__data = initseq
|
|
def __len__(self):
|
|
return len(self.__data)
|
|
def __getitem__(self, i):
|
|
return self.__data[i]
|
|
s = OtherSeq(u0)
|
|
v0 = self.type2test(s)
|
|
self.assertEqual(len(v0), len(s))
|
|
|
|
s = "this is also a sequence"
|
|
vv = self.type2test(s)
|
|
self.assertEqual(len(vv), len(s))
|
|
|
|
# Create from various iteratables
|
|
for s in ("123", "", range(1000), ('do', 1.2), range(2000,2200,5)):
|
|
for g in (Sequence, IterFunc, IterGen,
|
|
itermulti, iterfunc):
|
|
self.assertEqual(self.type2test(g(s)), self.type2test(s))
|
|
self.assertEqual(self.type2test(IterFuncStop(s)), self.type2test())
|
|
self.assertEqual(self.type2test(c for c in "123"), self.type2test("123"))
|
|
self.assertRaises(TypeError, self.type2test, IterNextOnly(s))
|
|
self.assertRaises(TypeError, self.type2test, IterNoNext(s))
|
|
self.assertRaises(ZeroDivisionError, self.type2test, IterGenExc(s))
|
|
|
|
# Issue #23757
|
|
self.assertEqual(self.type2test(LyingTuple((2,))), self.type2test((1,)))
|
|
self.assertEqual(self.type2test(LyingList([2])), self.type2test([1]))
|
|
|
|
def test_truth(self):
|
|
self.assertFalse(self.type2test())
|
|
self.assertTrue(self.type2test([42]))
|
|
|
|
def test_getitem(self):
|
|
u = self.type2test([0, 1, 2, 3, 4])
|
|
for i in range(len(u)):
|
|
self.assertEqual(u[i], i)
|
|
self.assertEqual(u[int(i)], i)
|
|
for i in range(-len(u), -1):
|
|
self.assertEqual(u[i], len(u)+i)
|
|
self.assertEqual(u[int(i)], len(u)+i)
|
|
self.assertRaises(IndexError, u.__getitem__, -len(u)-1)
|
|
self.assertRaises(IndexError, u.__getitem__, len(u))
|
|
self.assertRaises(ValueError, u.__getitem__, slice(0,10,0))
|
|
|
|
u = self.type2test()
|
|
self.assertRaises(IndexError, u.__getitem__, 0)
|
|
self.assertRaises(IndexError, u.__getitem__, -1)
|
|
|
|
self.assertRaises(TypeError, u.__getitem__)
|
|
|
|
a = self.type2test([10, 11])
|
|
self.assertEqual(a[0], 10)
|
|
self.assertEqual(a[1], 11)
|
|
self.assertEqual(a[-2], 10)
|
|
self.assertEqual(a[-1], 11)
|
|
self.assertRaises(IndexError, a.__getitem__, -3)
|
|
self.assertRaises(IndexError, a.__getitem__, 3)
|
|
|
|
def test_getslice(self):
|
|
l = [0, 1, 2, 3, 4]
|
|
u = self.type2test(l)
|
|
|
|
self.assertEqual(u[0:0], self.type2test())
|
|
self.assertEqual(u[1:2], self.type2test([1]))
|
|
self.assertEqual(u[-2:-1], self.type2test([3]))
|
|
self.assertEqual(u[-1000:1000], u)
|
|
self.assertEqual(u[1000:-1000], self.type2test([]))
|
|
self.assertEqual(u[:], u)
|
|
self.assertEqual(u[1:None], self.type2test([1, 2, 3, 4]))
|
|
self.assertEqual(u[None:3], self.type2test([0, 1, 2]))
|
|
|
|
# Extended slices
|
|
self.assertEqual(u[::], u)
|
|
self.assertEqual(u[::2], self.type2test([0, 2, 4]))
|
|
self.assertEqual(u[1::2], self.type2test([1, 3]))
|
|
self.assertEqual(u[::-1], self.type2test([4, 3, 2, 1, 0]))
|
|
self.assertEqual(u[::-2], self.type2test([4, 2, 0]))
|
|
self.assertEqual(u[3::-2], self.type2test([3, 1]))
|
|
self.assertEqual(u[3:3:-2], self.type2test([]))
|
|
self.assertEqual(u[3:2:-2], self.type2test([3]))
|
|
self.assertEqual(u[3:1:-2], self.type2test([3]))
|
|
self.assertEqual(u[3:0:-2], self.type2test([3, 1]))
|
|
self.assertEqual(u[::-100], self.type2test([4]))
|
|
self.assertEqual(u[100:-100:], self.type2test([]))
|
|
self.assertEqual(u[-100:100:], u)
|
|
self.assertEqual(u[100:-100:-1], u[::-1])
|
|
self.assertEqual(u[-100:100:-1], self.type2test([]))
|
|
self.assertEqual(u[-100:100:2], self.type2test([0, 2, 4]))
|
|
|
|
# Test extreme cases with long ints
|
|
a = self.type2test([0,1,2,3,4])
|
|
self.assertEqual(a[ -pow(2,128): 3 ], self.type2test([0,1,2]))
|
|
self.assertEqual(a[ 3: pow(2,145) ], self.type2test([3,4]))
|
|
|
|
def test_contains(self):
|
|
u = self.type2test([0, 1, 2])
|
|
for i in u:
|
|
self.assertIn(i, u)
|
|
for i in min(u)-1, max(u)+1:
|
|
self.assertNotIn(i, u)
|
|
|
|
self.assertRaises(TypeError, u.__contains__)
|
|
|
|
def test_contains_fake(self):
|
|
class AllEq:
|
|
# Sequences must use rich comparison against each item
|
|
# (unless "is" is true, or an earlier item answered)
|
|
# So instances of AllEq must be found in all non-empty sequences.
|
|
def __eq__(self, other):
|
|
return True
|
|
__hash__ = None # Can't meet hash invariant requirements
|
|
self.assertNotIn(AllEq(), self.type2test([]))
|
|
self.assertIn(AllEq(), self.type2test([1]))
|
|
|
|
def test_contains_order(self):
|
|
# Sequences must test in-order. If a rich comparison has side
|
|
# effects, these will be visible to tests against later members.
|
|
# In this test, the "side effect" is a short-circuiting raise.
|
|
class DoNotTestEq(Exception):
|
|
pass
|
|
class StopCompares:
|
|
def __eq__(self, other):
|
|
raise DoNotTestEq
|
|
|
|
checkfirst = self.type2test([1, StopCompares()])
|
|
self.assertIn(1, checkfirst)
|
|
checklast = self.type2test([StopCompares(), 1])
|
|
self.assertRaises(DoNotTestEq, checklast.__contains__, 1)
|
|
|
|
def test_len(self):
|
|
self.assertEqual(len(self.type2test()), 0)
|
|
self.assertEqual(len(self.type2test([])), 0)
|
|
self.assertEqual(len(self.type2test([0])), 1)
|
|
self.assertEqual(len(self.type2test([0, 1, 2])), 3)
|
|
|
|
def test_minmax(self):
|
|
u = self.type2test([0, 1, 2])
|
|
self.assertEqual(min(u), 0)
|
|
self.assertEqual(max(u), 2)
|
|
|
|
def test_addmul(self):
|
|
u1 = self.type2test([0])
|
|
u2 = self.type2test([0, 1])
|
|
self.assertEqual(u1, u1 + self.type2test())
|
|
self.assertEqual(u1, self.type2test() + u1)
|
|
self.assertEqual(u1 + self.type2test([1]), u2)
|
|
self.assertEqual(self.type2test([-1]) + u1, self.type2test([-1, 0]))
|
|
self.assertEqual(self.type2test(), u2*0)
|
|
self.assertEqual(self.type2test(), 0*u2)
|
|
self.assertEqual(self.type2test(), u2*0)
|
|
self.assertEqual(self.type2test(), 0*u2)
|
|
self.assertEqual(u2, u2*1)
|
|
self.assertEqual(u2, 1*u2)
|
|
self.assertEqual(u2, u2*1)
|
|
self.assertEqual(u2, 1*u2)
|
|
self.assertEqual(u2+u2, u2*2)
|
|
self.assertEqual(u2+u2, 2*u2)
|
|
self.assertEqual(u2+u2, u2*2)
|
|
self.assertEqual(u2+u2, 2*u2)
|
|
self.assertEqual(u2+u2+u2, u2*3)
|
|
self.assertEqual(u2+u2+u2, 3*u2)
|
|
|
|
class subclass(self.type2test):
|
|
pass
|
|
u3 = subclass([0, 1])
|
|
self.assertEqual(u3, u3*1)
|
|
self.assertIsNot(u3, u3*1)
|
|
|
|
def test_iadd(self):
|
|
u = self.type2test([0, 1])
|
|
u += self.type2test()
|
|
self.assertEqual(u, self.type2test([0, 1]))
|
|
u += self.type2test([2, 3])
|
|
self.assertEqual(u, self.type2test([0, 1, 2, 3]))
|
|
u += self.type2test([4, 5])
|
|
self.assertEqual(u, self.type2test([0, 1, 2, 3, 4, 5]))
|
|
|
|
u = self.type2test("spam")
|
|
u += self.type2test("eggs")
|
|
self.assertEqual(u, self.type2test("spameggs"))
|
|
|
|
def test_imul(self):
|
|
u = self.type2test([0, 1])
|
|
u *= 3
|
|
self.assertEqual(u, self.type2test([0, 1, 0, 1, 0, 1]))
|
|
|
|
def test_getitemoverwriteiter(self):
|
|
# Verify that __getitem__ overrides are not recognized by __iter__
|
|
class T(self.type2test):
|
|
def __getitem__(self, key):
|
|
return str(key) + '!!!'
|
|
self.assertEqual(next(iter(T((1,2)))), 1)
|
|
|
|
def test_repeat(self):
|
|
for m in range(4):
|
|
s = tuple(range(m))
|
|
for n in range(-3, 5):
|
|
self.assertEqual(self.type2test(s*n), self.type2test(s)*n)
|
|
self.assertEqual(self.type2test(s)*(-4), self.type2test([]))
|
|
self.assertEqual(id(s), id(s*1))
|
|
|
|
def test_bigrepeat(self):
|
|
import sys
|
|
if sys.maxsize <= 2147483647:
|
|
x = self.type2test([0])
|
|
x *= 2**16
|
|
self.assertRaises(MemoryError, x.__mul__, 2**16)
|
|
if hasattr(x, '__imul__'):
|
|
self.assertRaises(MemoryError, x.__imul__, 2**16)
|
|
|
|
def test_subscript(self):
|
|
a = self.type2test([10, 11])
|
|
self.assertEqual(a.__getitem__(0), 10)
|
|
self.assertEqual(a.__getitem__(1), 11)
|
|
self.assertEqual(a.__getitem__(-2), 10)
|
|
self.assertEqual(a.__getitem__(-1), 11)
|
|
self.assertRaises(IndexError, a.__getitem__, -3)
|
|
self.assertRaises(IndexError, a.__getitem__, 3)
|
|
self.assertEqual(a.__getitem__(slice(0,1)), self.type2test([10]))
|
|
self.assertEqual(a.__getitem__(slice(1,2)), self.type2test([11]))
|
|
self.assertEqual(a.__getitem__(slice(0,2)), self.type2test([10, 11]))
|
|
self.assertEqual(a.__getitem__(slice(0,3)), self.type2test([10, 11]))
|
|
self.assertEqual(a.__getitem__(slice(3,5)), self.type2test([]))
|
|
self.assertRaises(ValueError, a.__getitem__, slice(0, 10, 0))
|
|
self.assertRaises(TypeError, a.__getitem__, 'x')
|
|
|
|
def test_count(self):
|
|
a = self.type2test([0, 1, 2])*3
|
|
self.assertEqual(a.count(0), 3)
|
|
self.assertEqual(a.count(1), 3)
|
|
self.assertEqual(a.count(3), 0)
|
|
|
|
self.assertRaises(TypeError, a.count)
|
|
|
|
class BadExc(Exception):
|
|
pass
|
|
|
|
class BadCmp:
|
|
def __eq__(self, other):
|
|
if other == 2:
|
|
raise BadExc()
|
|
return False
|
|
|
|
self.assertRaises(BadExc, a.count, BadCmp())
|
|
|
|
def test_index(self):
|
|
u = self.type2test([0, 1])
|
|
self.assertEqual(u.index(0), 0)
|
|
self.assertEqual(u.index(1), 1)
|
|
self.assertRaises(ValueError, u.index, 2)
|
|
|
|
u = self.type2test([-2, -1, 0, 0, 1, 2])
|
|
self.assertEqual(u.count(0), 2)
|
|
self.assertEqual(u.index(0), 2)
|
|
self.assertEqual(u.index(0, 2), 2)
|
|
self.assertEqual(u.index(-2, -10), 0)
|
|
self.assertEqual(u.index(0, 3), 3)
|
|
self.assertEqual(u.index(0, 3, 4), 3)
|
|
self.assertRaises(ValueError, u.index, 2, 0, -10)
|
|
|
|
self.assertRaises(TypeError, u.index)
|
|
|
|
class BadExc(Exception):
|
|
pass
|
|
|
|
class BadCmp:
|
|
def __eq__(self, other):
|
|
if other == 2:
|
|
raise BadExc()
|
|
return False
|
|
|
|
a = self.type2test([0, 1, 2, 3])
|
|
self.assertRaises(BadExc, a.index, BadCmp())
|
|
|
|
a = self.type2test([-2, -1, 0, 0, 1, 2])
|
|
self.assertEqual(a.index(0), 2)
|
|
self.assertEqual(a.index(0, 2), 2)
|
|
self.assertEqual(a.index(0, -4), 2)
|
|
self.assertEqual(a.index(-2, -10), 0)
|
|
self.assertEqual(a.index(0, 3), 3)
|
|
self.assertEqual(a.index(0, -3), 3)
|
|
self.assertEqual(a.index(0, 3, 4), 3)
|
|
self.assertEqual(a.index(0, -3, -2), 3)
|
|
self.assertEqual(a.index(0, -4*sys.maxsize, 4*sys.maxsize), 2)
|
|
self.assertRaises(ValueError, a.index, 0, 4*sys.maxsize,-4*sys.maxsize)
|
|
self.assertRaises(ValueError, a.index, 2, 0, -10)
|
|
|
|
def test_pickle(self):
|
|
lst = self.type2test([4, 5, 6, 7])
|
|
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
|
|
lst2 = pickle.loads(pickle.dumps(lst, proto))
|
|
self.assertEqual(lst2, lst)
|
|
self.assertNotEqual(id(lst2), id(lst))
|