def test_reindex_dtype(self):
c = CategoricalIndex(['a', 'b', 'c', 'a'])
res, indexer = c.reindex(['a', 'c'])
tm.assert_index_equal(res, Index(['a', 'a', 'c']), exact=True)
tm.assert_numpy_array_equal(indexer, np.array([0, 3, 2],
dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'])
res, indexer = c.reindex(Categorical(['a', 'c']))
exp = CategoricalIndex(['a', 'a', 'c'], categories=['a', 'c'])
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer, np.array([0, 3, 2],
dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'],
categories=['a', 'b', 'c', 'd'])
res, indexer = c.reindex(['a', 'c'])
exp = Index(['a', 'a', 'c'], dtype='object')
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer, np.array([0, 3, 2],
dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'],
categories=['a', 'b', 'c', 'd'])
res, indexer = c.reindex(Categorical(['a', 'c']))
exp = CategoricalIndex(['a', 'a', 'c'], categories=['a', 'c'])
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer, np.array([0, 3, 2],
dtype=np.int64))
def test_reindex_dtype(self):
c = CategoricalIndex(['a', 'b', 'c', 'a'])
res, indexer = c.reindex(['a', 'c'])
tm.assert_index_equal(res, Index(['a', 'a', 'c']), exact=True)
tm.assert_numpy_array_equal(indexer,
np.array([0, 3, 2], dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'])
res, indexer = c.reindex(Categorical(['a', 'c']))
exp = CategoricalIndex(['a', 'a', 'c'], categories=['a', 'c'])
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer,
np.array([0, 3, 2], dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'],
categories=['a', 'b', 'c', 'd'])
res, indexer = c.reindex(['a', 'c'])
exp = Index(['a', 'a', 'c'], dtype='object')
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer,
np.array([0, 3, 2], dtype=np.int64))
c = CategoricalIndex(['a', 'b', 'c', 'a'],
categories=['a', 'b', 'c', 'd'])
res, indexer = c.reindex(Categorical(['a', 'c']))
exp = CategoricalIndex(['a', 'a', 'c'], categories=['a', 'c'])
tm.assert_index_equal(res, exp, exact=True)
tm.assert_numpy_array_equal(indexer,
np.array([0, 3, 2], dtype=np.int64))
