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//usr/lib/python2.4/test/list_tests.py
""" Tests common to list and UserList.UserList """ import sys import os import unittest from test import test_support, seq_tests class CommonTest(seq_tests.CommonTest): def test_init(self): # Iterable arg is optional self.assertEqual(self.type2test([]), self.type2test()) # Init clears previous values a = self.type2test([1, 2, 3]) a.__init__() self.assertEqual(a, self.type2test([])) # Init overwrites previous values a = self.type2test([1, 2, 3]) a.__init__([4, 5, 6]) self.assertEqual(a, self.type2test([4, 5, 6])) # Mutables always return a new object b = self.type2test(a) self.assertNotEqual(id(a), id(b)) self.assertEqual(a, b) def test_repr(self): l0 = [] l2 = [0, 1, 2] a0 = self.type2test(l0) a2 = self.type2test(l2) self.assertEqual(str(a0), str(l0)) self.assertEqual(repr(a0), repr(l0)) self.assertEqual(`a2`, `l2`) self.assertEqual(str(a2), "[0, 1, 2]") self.assertEqual(repr(a2), "[0, 1, 2]") a2.append(a2) a2.append(3) self.assertEqual(str(a2), "[0, 1, 2, [...], 3]") self.assertEqual(repr(a2), "[0, 1, 2, [...], 3]") def test_print(self): d = self.type2test(xrange(200)) d.append(d) d.extend(xrange(200,400)) d.append(d) d.append(400) try: fo = open(test_support.TESTFN, "wb") print >> fo, d, fo.close() fo = open(test_support.TESTFN, "rb") self.assertEqual(fo.read(), repr(d)) finally: fo.close() os.remove(test_support.TESTFN) def test_set_subscript(self): a = self.type2test(range(20)) self.assertRaises(ValueError, a.__setitem__, slice(0, 10, 0), [1,2,3]) self.assertRaises(TypeError, a.__setitem__, slice(0, 10), 1) self.assertRaises(ValueError, a.__setitem__, slice(0, 10, 2), [1,2]) self.assertRaises(TypeError, a.__getitem__, 'x', 1) a[slice(2,10,3)] = [1,2,3] self.assertEqual(a, self.type2test([0, 1, 1, 3, 4, 2, 6, 7, 3, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19])) def test_reversed(self): a = self.type2test(range(20)) r = reversed(a) self.assertEqual(list(r), self.type2test(range(19, -1, -1))) self.assertRaises(StopIteration, r.next) self.assertEqual(list(reversed(self.type2test())), self.type2test()) def test_setitem(self): a = self.type2test([0, 1]) a[0] = 0 a[1] = 100 self.assertEqual(a, self.type2test([0, 100])) a[-1] = 200 self.assertEqual(a, self.type2test([0, 200])) a[-2] = 100 self.assertEqual(a, self.type2test([100, 200])) self.assertRaises(IndexError, a.__setitem__, -3, 200) self.assertRaises(IndexError, a.__setitem__, 2, 200) a = self.type2test([]) self.assertRaises(IndexError, a.__setitem__, 0, 200) self.assertRaises(IndexError, a.__setitem__, -1, 200) self.assertRaises(TypeError, a.__setitem__) a = self.type2test([0,1,2,3,4]) a[0L] = 1 a[1L] = 2 a[2L] = 3 self.assertEqual(a, self.type2test([1,2,3,3,4])) a[0] = 5 a[1] = 6 a[2] = 7 self.assertEqual(a, self.type2test([5,6,7,3,4])) a[-2L] = 88 a[-1L] = 99 self.assertEqual(a, self.type2test([5,6,7,88,99])) a[-2] = 8 a[-1] = 9 self.assertEqual(a, self.type2test([5,6,7,8,9])) def test_delitem(self): a = self.type2test([0, 1]) del a[1] self.assertEqual(a, [0]) del a[0] self.assertEqual(a, []) a = self.type2test([0, 1]) del a[-2] self.assertEqual(a, [1]) del a[-1] self.assertEqual(a, []) a = self.type2test([0, 1]) self.assertRaises(IndexError, a.__delitem__, -3) self.assertRaises(IndexError, a.__delitem__, 2) a = self.type2test([]) self.assertRaises(IndexError, a.__delitem__, 0) self.assertRaises(TypeError, a.__delitem__) def test_setslice(self): l = [0, 1] a = self.type2test(l) for i in range(-3, 4): a[:i] = l[:i] self.assertEqual(a, l) a2 = a[:] a2[:i] = a[:i] self.assertEqual(a2, a) a[i:] = l[i:] self.assertEqual(a, l) a2 = a[:] a2[i:] = a[i:] self.assertEqual(a2, a) for j in range(-3, 4): a[i:j] = l[i:j] self.assertEqual(a, l) a2 = a[:] a2[i:j] = a[i:j] self.assertEqual(a2, a) aa2 = a2[:] aa2[:0] = [-2, -1] self.assertEqual(aa2, [-2, -1, 0, 1]) aa2[0:] = [] self.assertEqual(aa2, []) a = self.type2test([1, 2, 3, 4, 5]) a[:-1] = a self.assertEqual(a, self.type2test([1, 2, 3, 4, 5, 5])) a = self.type2test([1, 2, 3, 4, 5]) a[1:] = a self.assertEqual(a, self.type2test([1, 1, 2, 3, 4, 5])) a = self.type2test([1, 2, 3, 4, 5]) a[1:-1] = a self.assertEqual(a, self.type2test([1, 1, 2, 3, 4, 5, 5])) a = self.type2test([]) a[:] = tuple(range(10)) self.assertEqual(a, self.type2test(range(10))) self.assertRaises(TypeError, a.__setslice__, 0, 1, 5) self.assertRaises(TypeError, a.__setslice__) def test_delslice(self): a = self.type2test([0, 1]) del a[1:2] del a[0:1] self.assertEqual(a, self.type2test([])) a = self.type2test([0, 1]) del a[1L:2L] del a[0L:1L] self.assertEqual(a, self.type2test([])) a = self.type2test([0, 1]) del a[-2:-1] self.assertEqual(a, self.type2test([1])) a = self.type2test([0, 1]) del a[-2L:-1L] self.assertEqual(a, self.type2test([1])) a = self.type2test([0, 1]) del a[1:] del a[:1] self.assertEqual(a, self.type2test([])) a = self.type2test([0, 1]) del a[1L:] del a[:1L] self.assertEqual(a, self.type2test([])) a = self.type2test([0, 1]) del a[-1:] self.assertEqual(a, self.type2test([0])) a = self.type2test([0, 1]) del a[-1L:] self.assertEqual(a, self.type2test([0])) a = self.type2test([0, 1]) del a[:] self.assertEqual(a, self.type2test([])) def test_append(self): a = self.type2test([]) a.append(0) a.append(1) a.append(2) self.assertEqual(a, self.type2test([0, 1, 2])) self.assertRaises(TypeError, a.append) def test_extend(self): a1 = self.type2test([0]) a2 = self.type2test((0, 1)) a = a1[:] a.extend(a2) self.assertEqual(a, a1 + a2) a.extend(self.type2test([])) self.assertEqual(a, a1 + a2) a.extend(a) self.assertEqual(a, self.type2test([0, 0, 1, 0, 0, 1])) a = self.type2test("spam") a.extend("eggs") self.assertEqual(a, list("spameggs")) self.assertRaises(TypeError, a.extend, None) self.assertRaises(TypeError, a.extend) def test_insert(self): a = self.type2test([0, 1, 2]) a.insert(0, -2) a.insert(1, -1) a.insert(2, 0) self.assertEqual(a, [-2, -1, 0, 0, 1, 2]) b = a[:] b.insert(-2, "foo") b.insert(-200, "left") b.insert(200, "right") self.assertEqual(b, self.type2test(["left",-2,-1,0,0,"foo",1,2,"right"])) self.assertRaises(TypeError, a.insert) def test_pop(self): from decimal import Decimal a = self.type2test([-1, 0, 1]) a.pop() self.assertEqual(a, [-1, 0]) a.pop(0) self.assertEqual(a, [0]) self.assertRaises(IndexError, a.pop, 5) a.pop(0) self.assertEqual(a, []) self.assertRaises(IndexError, a.pop) self.assertRaises(TypeError, a.pop, 42, 42) a = self.type2test([0, 10, 20, 30, 40]) self.assertEqual(a.pop(Decimal(2)), 20) self.assertRaises(IndexError, a.pop, Decimal(25)) def test_remove(self): a = self.type2test([0, 0, 1]) a.remove(1) self.assertEqual(a, [0, 0]) a.remove(0) self.assertEqual(a, [0]) a.remove(0) self.assertEqual(a, []) self.assertRaises(ValueError, a.remove, 0) self.assertRaises(TypeError, a.remove) 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.remove, BadCmp()) 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.maxint, 4*sys.maxint), 2) self.assertRaises(ValueError, a.index, 0, 4*sys.maxint,-4*sys.maxint) self.assertRaises(ValueError, a.index, 2, 0, -10) a.remove(0) self.assertRaises(ValueError, a.index, 2, 0, 4) self.assertEqual(a, self.type2test([-2, -1, 0, 1, 2])) # Test modifying the list during index's iteration class EvilCmp: def __init__(self, victim): self.victim = victim def __eq__(self, other): del self.victim[:] return False a = self.type2test() a[:] = [EvilCmp(a) for _ in xrange(100)] # This used to seg fault before patch #1005778 self.assertRaises(ValueError, a.index, None) def test_reverse(self): u = self.type2test([-2, -1, 0, 1, 2]) u2 = u[:] u.reverse() self.assertEqual(u, [2, 1, 0, -1, -2]) u.reverse() self.assertEqual(u, u2) self.assertRaises(TypeError, u.reverse, 42) def test_sort(self): u = self.type2test([1, 0]) u.sort() self.assertEqual(u, [0, 1]) u = self.type2test([2,1,0,-1,-2]) u.sort() self.assertEqual(u, self.type2test([-2,-1,0,1,2])) self.assertRaises(TypeError, u.sort, 42, 42) def revcmp(a, b): return cmp(b, a) u.sort(revcmp) self.assertEqual(u, self.type2test([2,1,0,-1,-2])) # The following dumps core in unpatched Python 1.5: def myComparison(x,y): return cmp(x%3, y%7) z = self.type2test(range(12)) z.sort(myComparison) self.assertRaises(TypeError, z.sort, 2) def selfmodifyingComparison(x,y): z.append(1) return cmp(x, y) self.assertRaises(ValueError, z.sort, selfmodifyingComparison) self.assertRaises(TypeError, z.sort, lambda x, y: 's') self.assertRaises(TypeError, z.sort, 42, 42, 42, 42) def test_slice(self): u = self.type2test("spam") u[:2] = "h" self.assertEqual(u, list("ham")) def test_iadd(self): super(CommonTest, self).test_iadd() u = self.type2test([0, 1]) u2 = u u += [2, 3] self.assert_(u is u2) u = self.type2test("spam") u += "eggs" self.assertEqual(u, self.type2test("spameggs")) self.assertRaises(TypeError, u.__iadd__, None) def test_imul(self): u = self.type2test([0, 1]) u *= 3 self.assertEqual(u, self.type2test([0, 1, 0, 1, 0, 1])) u *= 0 self.assertEqual(u, self.type2test([])) s = self.type2test([]) oldid = id(s) s *= 10 self.assertEqual(id(s), oldid) def test_extendedslicing(self): # subscript a = self.type2test([0,1,2,3,4]) # deletion del a[::2] self.assertEqual(a, self.type2test([1,3])) a = self.type2test(range(5)) del a[1::2] self.assertEqual(a, self.type2test([0,2,4])) a = self.type2test(range(5)) del a[1::-2] self.assertEqual(a, self.type2test([0,2,3,4])) a = self.type2test(range(10)) del a[::1000] self.assertEqual(a, self.type2test([1, 2, 3, 4, 5, 6, 7, 8, 9])) # assignment a = self.type2test(range(10)) a[::2] = [-1]*5 self.assertEqual(a, self.type2test([-1, 1, -1, 3, -1, 5, -1, 7, -1, 9])) a = self.type2test(range(10)) a[::-4] = [10]*3 self.assertEqual(a, self.type2test([0, 10, 2, 3, 4, 10, 6, 7, 8 ,10])) a = self.type2test(range(4)) a[::-1] = a self.assertEqual(a, self.type2test([3, 2, 1, 0])) a = self.type2test(range(10)) b = a[:] c = a[:] a[2:3] = self.type2test(["two", "elements"]) b[slice(2,3)] = self.type2test(["two", "elements"]) c[2:3:] = self.type2test(["two", "elements"]) self.assertEqual(a, b) self.assertEqual(a, c) a = self.type2test(range(10)) a[::2] = tuple(range(5)) self.assertEqual(a, self.type2test([0, 1, 1, 3, 2, 5, 3, 7, 4, 9])) def test_constructor_exception_handling(self): # Bug #1242657 class F(object): def __iter__(self): yield 23 def __len__(self): raise KeyboardInterrupt self.assertRaises(KeyboardInterrupt, list, F())