def test_contains(self):
r = xrange(5)
self.assertFalse(-1 in r)
self.assertTrue(1 in r)
self.assertTrue(4 in r)
self.assertFalse(5 in r)
r = xrange(0, 5, 2)
self.assertFalse(-1 in r)
self.assertTrue(0 in r)
self.assertFalse(1 in r)
self.assertTrue(2 in r)
self.assertFalse(3 in r)
self.assertTrue(4 in r)
self.assertFalse(5 in r)
r = xrange(5, 0, -1)
self.assertFalse(-1 in r)
self.assertFalse(0 in r)
self.assertTrue(1 in r)
self.assertTrue(2 in r)
self.assertTrue(3 in r)
self.assertTrue(4 in r)
self.assertTrue(5 in r)
self.assertFalse(6 in r)
def test_contains(self):
r = xrange(5)
self.assertFalse(-1 in r)
self.assertTrue(1 in r)
self.assertTrue(4 in r)
self.assertFalse(5 in r)
r = xrange(0, 5, 2)
self.assertFalse(-1 in r)
self.assertTrue(0 in r)
self.assertFalse(1 in r)
self.assertTrue(2 in r)
self.assertFalse(3 in r)
self.assertTrue(4 in r)
self.assertFalse(5 in r)
r = xrange(5, 0, -1)
self.assertFalse(-1 in r)
self.assertFalse(0 in r)
self.assertTrue(1 in r)
self.assertTrue(2 in r)
self.assertTrue(3 in r)
self.assertTrue(4 in r)
self.assertTrue(5 in r)
self.assertFalse(6 in r)
def test_getitem(self):
r = xrange(0)
self.assertRaises(IndexError, getitem, r, -1)
self.assertRaises(IndexError, getitem, r, 0)
self.assertRaises(IndexError, getitem, r, 1)
r = xrange(1)
self.assertRaises(IndexError, getitem, r, -2)
self.assertEqual(0, r[-1])
self.assertEqual(0, r[0])
self.assertRaises(IndexError, getitem, r, 1)
r = xrange(3)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(0, r[-3])
self.assertEqual(2, r[-1])
self.assertEqual(0, r[0])
self.assertEqual(2, r[2])
self.assertRaises(IndexError, getitem, r, 3)
r = xrange(1, 4)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(1, r[-3])
self.assertEqual(3, r[-1])
self.assertEqual(1, r[0])
self.assertEqual(3, r[2])
self.assertRaises(IndexError, getitem, r, 3)
r = xrange(3, 0, -1)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(3, r[-3])
self.assertEqual(1, r[-1])
self.assertEqual(3, r[0])
self.assertEqual(1, r[2])
self.assertRaises(IndexError, getitem, r, 3)
def test_getitem(self):
r = xrange(0)
self.assertRaises(IndexError, getitem, r, -1)
self.assertRaises(IndexError, getitem, r, 0)
self.assertRaises(IndexError, getitem, r, 1)
r = xrange(1)
self.assertRaises(IndexError, getitem, r, -2)
self.assertEqual(0, r[-1])
self.assertEqual(0, r[0])
self.assertRaises(IndexError, getitem, r, 1)
r = xrange(3)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(0, r[-3])
self.assertEqual(2, r[-1])
self.assertEqual(0, r[0])
self.assertEqual(2, r[2])
self.assertRaises(IndexError, getitem, r, 3)
r = xrange(1, 4)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(1, r[-3])
self.assertEqual(3, r[-1])
self.assertEqual(1, r[0])
self.assertEqual(3, r[2])
self.assertRaises(IndexError, getitem, r, 3)
r = xrange(3, 0, -1)
self.assertRaises(IndexError, getitem, r, -4)
self.assertEqual(3, r[-3])
self.assertEqual(1, r[-1])
self.assertEqual(3, r[0])
self.assertEqual(1, r[2])
self.assertRaises(IndexError, getitem, r, 3)
def test_large_nums(self):
r = xrange(2**64 + 1)
self.assertEqual(r._len, 2**64 + 1)
# note, however, that you can't use len() on
# such an xrange, as the return value of len()
# must be expressable as a C (unsigned?) long
self.assertEqual(r[0], 0)
self.assertEqual(r[-1], 2**64)
def test_large_nums(self):
r = xrange(2**64 + 1)
self.assertEqual(r._len, 2**64 + 1)
# note, however, that you can't use len() on
# such an xrange, as the return value of len()
# must be expressable as a C (unsigned?) long
self.assertEqual(r[0], 0)
self.assertEqual(r[-1], 2**64)
def test_index(self):
r = xrange(1)
self.assertEqual(0, r.index(0))
self.assertRaises(ValueError, r.index, -1)
self.assertRaises(ValueError, r.index, 1)
r = xrange(10)
self.assertEqual(4, r.index(4))
self.assertEqual(9, r.index(9))
self.assertRaises(ValueError, r.index, -1)
self.assertRaises(ValueError, r.index, 10)
r = xrange(3, 6)
self.assertEqual(0, r.index(3))
self.assertEqual(2, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(3, 6, 2)
self.assertEqual(0, r.index(3))
self.assertEqual(1, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(5, 2, -1)
self.assertEqual(2, r.index(3))
self.assertEqual(0, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(5, 2, -2)
self.assertEqual(1, r.index(3))
self.assertEqual(0, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
def test_index(self):
r = xrange(1)
self.assertEqual(0, r.index(0))
self.assertRaises(ValueError, r.index, -1)
self.assertRaises(ValueError, r.index, 1)
r = xrange(10)
self.assertEqual(4, r.index(4))
self.assertEqual(9, r.index(9))
self.assertRaises(ValueError, r.index, -1)
self.assertRaises(ValueError, r.index, 10)
r = xrange(3, 6)
self.assertEqual(0, r.index(3))
self.assertEqual(2, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(3, 6, 2)
self.assertEqual(0, r.index(3))
self.assertEqual(1, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(5, 2, -1)
self.assertEqual(2, r.index(3))
self.assertEqual(0, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
r = xrange(5, 2, -2)
self.assertEqual(1, r.index(3))
self.assertEqual(0, r.index(5))
self.assertRaises(ValueError, r.index, 2)
self.assertRaises(ValueError, r.index, 6)
def test_count(self):
r = xrange(1)
self.assertEqual(0, r.count(-1))
self.assertEqual(1, r.count(0))
self.assertEqual(0, r.count(1))
r = xrange(0, 5, 2)
self.assertEqual(0, r.count(-1))
self.assertEqual(1, r.count(0))
self.assertEqual(0, r.count(1))
self.assertEqual(1, r.count(2))
self.assertEqual(0, r.count(3))
self.assertEqual(1, r.count(4))
self.assertEqual(0, r.count(5))
r = xrange(5, 0, -1)
self.assertEqual(0, r.count(-1))
self.assertEqual(0, r.count(0))
self.assertEqual(1, r.count(1))
self.assertEqual(1, r.count(2))
self.assertEqual(1, r.count(3))
self.assertEqual(1, r.count(4))
self.assertEqual(1, r.count(5))
self.assertEqual(0, r.count(6))
def test_count(self):
r = xrange(1)
self.assertEqual(0, r.count(-1))
self.assertEqual(1, r.count(0))
self.assertEqual(0, r.count(1))
r = xrange(0, 5, 2)
self.assertEqual(0, r.count(-1))
self.assertEqual(1, r.count(0))
self.assertEqual(0, r.count(1))
self.assertEqual(1, r.count(2))
self.assertEqual(0, r.count(3))
self.assertEqual(1, r.count(4))
self.assertEqual(0, r.count(5))
r = xrange(5, 0, -1)
self.assertEqual(0, r.count(-1))
self.assertEqual(0, r.count(0))
self.assertEqual(1, r.count(1))
self.assertEqual(1, r.count(2))
self.assertEqual(1, r.count(3))
self.assertEqual(1, r.count(4))
self.assertEqual(1, r.count(5))
self.assertEqual(0, r.count(6))
def test_init(self):
r = xrange(0)
self.assertEqual(0, r._start)
self.assertEqual(0, r._stop)
self.assertEqual(1, r._step)
r = xrange(1)
self.assertEqual(0, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(1, r._step)
r = xrange(2)
self.assertEqual(0, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2)
self.assertEqual(1, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2, 1)
self.assertEqual(1, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(2, 2, 1)
self.assertEqual(2, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2, -1)
self.assertEqual(1, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(-1, r._step)
r = xrange(2, 1, -1)
self.assertEqual(2, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(-1, r._step)
self.assertRaises(TypeError, xrange, 1, 2, 3, 4)
self.assertRaises(TypeError, xrange, 'abc')
self.assertRaises(ValueError, xrange, 1, 2, 0)
def test_init(self):
r = xrange(0)
self.assertEqual(0, r._start)
self.assertEqual(0, r._stop)
self.assertEqual(1, r._step)
r = xrange(1)
self.assertEqual(0, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(1, r._step)
r = xrange(2)
self.assertEqual(0, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2)
self.assertEqual(1, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2, 1)
self.assertEqual(1, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(2, 2, 1)
self.assertEqual(2, r._start)
self.assertEqual(2, r._stop)
self.assertEqual(1, r._step)
r = xrange(1, 2, -1)
self.assertEqual(1, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(-1, r._step)
r = xrange(2, 1, -1)
self.assertEqual(2, r._start)
self.assertEqual(1, r._stop)
self.assertEqual(-1, r._step)
self.assertRaises(TypeError, xrange, 1, 2, 3, 4)
self.assertRaises(TypeError, xrange, 'abc')
self.assertRaises(ValueError, xrange, 1, 2, 0)
def test_iter_basic(self):
self.assertEqual([], [x for x in xrange(0)])
self.assertEqual([0], [x for x in xrange(1)])
self.assertEqual([0, 1, 2], [x for x in xrange(3)])
self.assertEqual([0, 2, 4], [x for x in xrange(0, 5, 2)])
self.assertEqual([5, 3, 1], [x for x in xrange(5, 0, -2)])
iterator = iter(xrange(5))
self.assertTrue(iterator is iter(iterator))
def test_len(self):
r = xrange(0)
self.assertEqual(0, len(r))
r = xrange(1)
self.assertEqual(1, len(r))
r = xrange(10)
self.assertEqual(10, len(r))
r = xrange(3, 5)
self.assertEqual(2, len(r))
r = xrange(3, 5, 2)
self.assertEqual(1, len(r))
r = xrange(5, 3, -1)
self.assertEqual(2, len(r))
r = xrange(5, 3, -2)
self.assertEqual(1, len(r))
def test_len(self):
r = xrange(0)
self.assertEqual(0, len(r))
r = xrange(1)
self.assertEqual(1, len(r))
r = xrange(10)
self.assertEqual(10, len(r))
r = xrange(3, 5)
self.assertEqual(2, len(r))
r = xrange(3, 5, 2)
self.assertEqual(1, len(r))
r = xrange(5, 3, -1)
self.assertEqual(2, len(r))
r = xrange(5, 3, -2)
self.assertEqual(1, len(r))
def test_iter_basic(self):
self.assertEqual(
[],
[x for x in xrange(0)])
self.assertEqual(
[0],
[x for x in xrange(1)])
self.assertEqual(
[0, 1, 2],
[x for x in xrange(3)])
self.assertEqual(
[0, 2, 4],
[x for x in xrange(0, 5, 2)])
self.assertEqual(
[5, 3, 1],
[x for x in xrange(5, 0, -2)])
iterator = iter(xrange(5))
self.assertTrue(iterator is iter(iterator))
def test_reversed(self):
self.assertEqual(reversed(xrange(1)), xrange(0, -1, -1))
self.assertEqual(reversed(xrange(5)), xrange(4, -1, -1))
self.assertEqual(reversed(xrange(1, 5)), xrange(4, 0, -1))
self.assertEqual(reversed(xrange(5, 1, -1)), xrange(2, 6, 1))
def test_getitem_slice(self):
r = xrange(10)
self.assertRaises(ValueError, getitem, r, slice(1, 2, 0))
self.assertEqual(r[:], xrange(10))
self.assertEqual(r[::], xrange(10))
self.assertEqual(r[::1], xrange(10))
self.assertEqual(r[::2], xrange(0, 10, 2))
self.assertEqual(r[::-1], xrange(9, -1, -1))
self.assertEqual(r[::-2], xrange(9, -1, -2))
self.assertEqual(r[1:2], xrange(1, 2))
self.assertEqual(r[1:9], xrange(1, 9))
self.assertEqual(r[1:-1], xrange(1, 9))
self.assertEqual(r[-20:-1], xrange(0, 9))
self.assertEqual(r[-20:-19], xrange(0, 0))
def test_repr(self):
self.assertEqual(repr(xrange(1)), 'xrange(1)')
self.assertEqual(repr(xrange(1, 2)), 'xrange(1, 2)')
self.assertEqual(repr(xrange(1, 3, 2)), 'xrange(1, 3, 2)')
def test_repr(self):
self.assertEqual(repr(xrange(1)), 'xrange(1)')
self.assertEqual(repr(xrange(1, 2)), 'xrange(1, 2)')
self.assertEqual(repr(xrange(1, 3, 2)), 'xrange(1, 3, 2)')
def test_reversed(self):
self.assertEqual(reversed(xrange(1)), xrange(0, -1, -1))
self.assertEqual(reversed(xrange(5)), xrange(4, -1, -1))
self.assertEqual(reversed(xrange(1, 5)), xrange(4, 0, -1))
self.assertEqual(reversed(xrange(5, 1, -1)), xrange(2, 6, 1))
def test_getitem_slice(self):
r = xrange(10)
self.assertRaises(ValueError, getitem, r, slice(1, 2, 0))
self.assertEqual(r[:], xrange(10))
self.assertEqual(r[::], xrange(10))
self.assertEqual(r[::1], xrange(10))
self.assertEqual(r[::2], xrange(0, 10, 2))
self.assertEqual(r[::-1], xrange(9, -1, -1))
self.assertEqual(r[::-2], xrange(9, -1, -2))
self.assertEqual(r[1:2], xrange(1, 2))
self.assertEqual(r[1:9], xrange(1, 9))
self.assertEqual(r[1:-1], xrange(1, 9))
self.assertEqual(r[-20:-1], xrange(0, 9))
self.assertEqual(r[-20:-19], xrange(0, 0))