def test_insert_datetime_into_object(self, loc, val):
# GH#44509
idx = Index(["1", "2", "3"])
result = idx.insert(loc, val)
expected = Index(["1", "2", val, "3"])
tm.assert_index_equal(result, expected)
assert type(expected[2]) is type(val)
def test_insert(self):
# GH 7256
# validate neg/pos inserts
result = Index(["b", "c", "d"])
# test 0th element
tm.assert_index_equal(Index(["a", "b", "c", "d"]), result.insert(0, "a"))
# test Nth element that follows Python list behavior
tm.assert_index_equal(Index(["b", "c", "e", "d"]), result.insert(-1, "e"))
# test loc +/- neq (0, -1)
tm.assert_index_equal(result.insert(1, "z"), result.insert(-2, "z"))
# test empty
null_index = Index([])
tm.assert_index_equal(Index(["a"]), null_index.insert(0, "a"))
