def test_slice_no_int():
with pytest.raises(ValueError) as exc:
_slice('foo,2')
assert str(exc.value) == "invalid literal for int() with base 10: 'foo'"
def test_slice_too_many():
with pytest.raises(ValueError) as exc:
_slice('2,2,2')
assert str(exc.value) == 'too many slice parts'
def test_slice_empty():
with pytest.raises(ValueError) as exc:
assert _slice('')
assert str(exc.value) == "invalid literal for int() with base 10: ''"
def test_slice_simple():
assert _slice('2') == (2, None)
assert _slice('2,2') == (2, 2)
def test_slice_too_many(self):
with self.assertRaises(ValueError) as exc:
_slice('2,2,2')
self.assertEqual(str(exc.exception.args[0]), 'too many slice parts')
def test_slice_no_int(self):
with self.assertRaises(ValueError) as exc:
_slice('foo,2')
assert str(exc.exception.args[0]).startswith(
"invalid literal for int() with base 10:")
def test_slice_simple(self):
self.assertEqual(_slice('2'), (2, None))
self.assertEqual(_slice('2,2'), (2, 2))