import unittest from test import test_support import operator #from sys import maxint #maxsize = test_support.MAX_Py_ssize_t #minsize = -maxsize-1 class oldstyle: def __index__(self): return self.ind # class newstyle(object): # def __index__(self): # return self.ind class TrapInt(int): def __index__(self): return self class TrapLong(long): def __index__(self): return self class BaseTestCase(unittest.TestCase): def setUp(self): self.o = oldstyle() #self.n = newstyle() def test_basic(self): self.o.ind = -2 #self.n.ind = 2 self.assertEqual(operator.index(self.o), -2) #self.assertEqual(operator.index(self.n), 2) def test_slice(self): self.o.ind = 1 #self.n.ind = 2 slc = slice(self.o, self.o, self.o) check_slc = slice(1, 1, 1) self.assertEqual(slc.indices(self.o), check_slc.indices(1)) #slc = slice(self.n, self.n, self.n) #check_slc = slice(2, 2, 2) #self.assertEqual(slc.indices(self.n), check_slc.indices(2)) def test_wrappers(self): self.o.ind = 4 #self.n.ind = 5 #self.assertEqual(6.__index__(), 6) #self.assertEqual(-7L.__index__(), -7) self.assertEqual(self.o.__index__(), 4) #self.assertEqual(self.n.__index__(), 5) #self.assertEqual(True.__index__(), 1) #self.assertEqual(False.__index__(), 0) def test_subclasses(self): r = range(10) self.assertEqual(r[TrapInt(5):TrapInt(10)], r[5:10]) self.assertEqual(r[TrapLong(5):TrapLong(10)], r[5:10]) self.assertEqual(slice(TrapInt()).indices(0), (0,0,1)) self.assertEqual(slice(TrapLong(0)).indices(0), (0,0,1)) def test_error(self): self.o.ind = 'dumb' #self.n.ind = 'bad' self.assertRaises(TypeError, operator.index, self.o) #self.assertRaises(TypeError, operator.index, self.n) self.assertRaises(TypeError, slice(self.o).indices, 0) #self.assertRaises(TypeError, slice(self.n).indices, 0) class SeqTestCase(unittest.TestCase): # This test case isn't run directly. It just defines common tests # to the different sequence types below def setUp(self): self.o = oldstyle() #self.n = newstyle() self.o2 = oldstyle() #self.n2 = newstyle() def test_index(self): self.o.ind = -2 #self.n.ind = 2 #self.assertEqual(self.seq[self.n], self.seq[2]) self.assertEqual(self.seq[self.o], self.seq[-2]) def test_slice(self): self.o.ind = 1 self.o2.ind = 3 #self.n.ind = 2 #self.n2.ind = 4 self.assertEqual(self.seq[self.o:self.o2], self.seq[1:3]) #self.assertEqual(self.seq[self.n:self.n2], self.seq[2:4]) def test_slice_bug7532a(self): seqlen = len(self.seq) self.o.ind = int(seqlen * 1.5) #self.n.ind = seqlen + 2 self.assertEqual(self.seq[self.o:], self.seq[0:0]) self.assertEqual(self.seq[:self.o], self.seq) #self.assertEqual(self.seq[self.n:], self.seq[0:0]) #self.assertEqual(self.seq[:self.n], self.seq) def test_slice_bug7532b(self): if isinstance(self.seq, ClassicSeq): self.skipTest('test fails for ClassicSeq') # These tests fail for ClassicSeq (see bug #7532) seqlen = len(self.seq) self.o2.ind = -seqlen - 2 #self.n2.ind = -int(seqlen * 1.5) self.assertEqual(self.seq[self.o2:], self.seq) self.assertEqual(self.seq[:self.o2], self.seq[0:0]) #self.assertEqual(self.seq[self.n2:], self.seq) #self.assertEqual(self.seq[:self.n2], self.seq[0:0]) def test_repeat(self): self.o.ind = 3 #self.n.ind = 2 self.assertEqual(self.seq * self.o, self.seq * 3) #self.assertEqual(self.seq * self.n, self.seq * 2) self.assertEqual(self.o * self.seq, self.seq * 3) #self.assertEqual(self.n * self.seq, self.seq * 2) def test_wrappers(self): self.o.ind = 4 #self.n.ind = 5 self.assertEqual(self.seq.__getitem__(self.o), self.seq[4]) self.assertEqual(self.seq.__mul__(self.o), self.seq * 4) self.assertEqual(self.seq.__rmul__(self.o), self.seq * 4) #self.assertEqual(self.seq.__getitem__(self.n), self.seq[5]) #self.assertEqual(self.seq.__mul__(self.n), self.seq * 5) #self.assertEqual(self.seq.__rmul__(self.n), self.seq * 5) def test_subclasses(self): self.assertEqual(self.seq[TrapInt()], self.seq[0]) self.assertEqual(self.seq[TrapLong()], self.seq[0]) def test_error(self): self.o.ind = 'dumb' #self.n.ind = 'bad' indexobj = lambda x, obj: obj.seq[x] self.assertRaises(TypeError, indexobj, self.o, self) #self.assertRaises(TypeError, indexobj, self.n, self) sliceobj = lambda x, obj: obj.seq[x:] self.assertRaises(TypeError, sliceobj, self.o, self) #self.assertRaises(TypeError, sliceobj, self.n, self) class ListTestCase(SeqTestCase): seq = [0,10,20,30,40,50] def test_setdelitem(self): self.o.ind = -2 #self.n.ind = 2 lst = list('ab!cdefghi!j') del lst[self.o] #del lst[self.n] lst[self.o] = 'X' #lst[self.n] = 'Y' #self.assertEqual(lst, list('abYdefghXj')) self.assertEqual(lst, list('ab!cdefghXj')) # lst = [5, 6, 7, 8, 9, 10, 11] # lst.__setitem__(self.n, "here") # self.assertEqual(lst, [5, 6, "here", 8, 9, 10, 11]) # lst.__delitem__(self.n) # self.assertEqual(lst, [5, 6, 8, 9, 10, 11]) def test_inplace_repeat(self): self.o.ind = 2 #self.n.ind = 3 lst = [6, 4] lst *= self.o self.assertEqual(lst, [6, 4, 6, 4]) #lst *= self.n #self.assertEqual(lst, [6, 4, 6, 4] * 3) #lst = [5, 6, 7, 8, 9, 11] #l2 = lst.__imul__(self.n) #self.assertIs(l2, lst) #self.assertEqual(lst, [5, 6, 7, 8, 9, 11] * 3) class _BaseSeq: def __init__(self, iterable): self._list = list(iterable) def __repr__(self): return repr(self._list) def __eq__(self, other): return self._list == other def __len__(self): return len(self._list) def __mul__(self, n): return self.__class__(self._list*n) __rmul__ = __mul__ def __getitem__(self, index): return self._list[index] class _GetSliceMixin: def __getslice__(self, i, j): return self._list.__getslice__(i, j) class ClassicSeq(_BaseSeq): pass #class NewSeq(_BaseSeq, object): pass #class ClassicSeqDeprecated(_GetSliceMixin, ClassicSeq): pass #class NewSeqDeprecated(_GetSliceMixin, NewSeq): pass class TupleTestCase(SeqTestCase): seq = (0,10,20,30,40,50) class StringTestCase(SeqTestCase): seq = "this is a test" # class ByteArrayTestCase(SeqTestCase): # seq = bytearray("this is a test") # class UnicodeTestCase(SeqTestCase): # seq = u"this is a test" # class ClassicSeqTestCase(SeqTestCase): # seq = ClassicSeq((0,10,20,30,40,50)) # class NewSeqTestCase(SeqTestCase): # seq = NewSeq((0,10,20,30,40,50)) # class ClassicSeqDeprecatedTestCase(SeqTestCase): # seq = ClassicSeqDeprecated((0,10,20,30,40,50)) # class NewSeqDeprecatedTestCase(SeqTestCase): # seq = NewSeqDeprecated((0,10,20,30,40,50)) # class XRangeTestCase(unittest.TestCase): # def test_xrange(self): # n = newstyle() # n.ind = 5 # self.assertEqual(xrange(1, 20)[n], 6) # self.assertEqual(xrange(1, 20).__getitem__(n), 6) # class OverflowTestCase(unittest.TestCase): # def setUp(self): # self.pos = 2**100 # self.neg = -self.pos # def test_large_longs(self): # self.assertEqual(self.pos.__index__(), self.pos) # self.assertEqual(self.neg.__index__(), self.neg) # def _getitem_helper(self, base): # class GetItem(base): # def __len__(self): # return maxint # cannot return long here # def __getitem__(self, key): # return key # x = GetItem() # self.assertEqual(x[self.pos], self.pos) # self.assertEqual(x[self.neg], self.neg) # self.assertEqual(x[self.neg:self.pos].indices(maxsize), # (0, maxsize, 1)) # self.assertEqual(x[self.neg:self.pos:1].indices(maxsize), # (0, maxsize, 1)) # def _getslice_helper_deprecated(self, base): # class GetItem(base): # def __len__(self): # return maxint # cannot return long here # def __getitem__(self, key): # return key # def __getslice__(self, i, j): # return i, j # x = GetItem() # self.assertEqual(x[self.pos], self.pos) # self.assertEqual(x[self.neg], self.neg) # self.assertEqual(x[self.neg:self.pos], (maxint+minsize, maxsize)) # self.assertEqual(x[self.neg:self.pos:1].indices(maxsize), # (0, maxsize, 1)) # def test_getitem(self): # self._getitem_helper(object) # with test_support.check_py3k_warnings(): # self._getslice_helper_deprecated(object) # def test_getitem_classic(self): # class Empty: pass # # XXX This test fails (see bug #7532) # #self._getitem_helper(Empty) # with test_support.check_py3k_warnings(): # self._getslice_helper_deprecated(Empty) # def test_sequence_repeat(self): # self.assertRaises(OverflowError, lambda: "a" * self.pos) # self.assertRaises(OverflowError, lambda: "a" * self.neg) def test_main(): test_support.run_unittest( BaseTestCase, ListTestCase, TupleTestCase, # ByteArrayTestCase, StringTestCase, # UnicodeTestCase, # ClassicSeqTestCase, # NewSeqTestCase, # XRangeTestCase, # OverflowTestCase, ) # with test_support.check_py3k_warnings(): # test_support.run_unittest( # ClassicSeqDeprecatedTestCase, # NewSeqDeprecatedTestCase, # ) if __name__ == "__main__": test_main()