| 23 | ) |
| 24 | @pytest.mark.parametrize("fill", [None, -1]) |
| 25 | def test_align(datetime_series, first_slice, second_slice, join_type, fill): |
| 26 | a = datetime_series[slice(*first_slice)] |
| 27 | b = datetime_series[slice(*second_slice)] |
| 28 | |
| 29 | aa, ab = a.align(b, join=join_type, fill_value=fill) |
| 30 | |
| 31 | join_index = a.index.join(b.index, how=join_type) |
| 32 | if fill is not None: |
| 33 | diff_a = aa.index.difference(join_index) |
| 34 | diff_b = ab.index.difference(join_index) |
| 35 | if len(diff_a) > 0: |
| 36 | assert (aa.reindex(diff_a) == fill).all() |
| 37 | if len(diff_b) > 0: |
| 38 | assert (ab.reindex(diff_b) == fill).all() |
| 39 | |
| 40 | ea = a.reindex(join_index) |
| 41 | eb = b.reindex(join_index) |
| 42 | |
| 43 | if fill is not None: |
| 44 | ea = ea.fillna(fill) |
| 45 | eb = eb.fillna(fill) |
| 46 | |
| 47 | tm.assert_series_equal(aa, ea) |
| 48 | tm.assert_series_equal(ab, eb) |
| 49 | assert aa.name == "ts" |
| 50 | assert ea.name == "ts" |
| 51 | assert ab.name == "ts" |
| 52 | assert eb.name == "ts" |
| 53 | |
| 54 | |
| 55 | def test_align_nocopy(datetime_series): |