23 lines
852 B
Python
23 lines
852 B
Python
from pandas import Categorical
|
|
import pandas._testing as tm
|
|
|
|
|
|
class TestCategoricalSubclassing:
|
|
def test_constructor(self):
|
|
sc = tm.SubclassedCategorical(["a", "b", "c"])
|
|
assert isinstance(sc, tm.SubclassedCategorical)
|
|
tm.assert_categorical_equal(sc, Categorical(["a", "b", "c"]))
|
|
|
|
def test_from_codes(self):
|
|
sc = tm.SubclassedCategorical.from_codes([1, 0, 2], ["a", "b", "c"])
|
|
assert isinstance(sc, tm.SubclassedCategorical)
|
|
exp = Categorical.from_codes([1, 0, 2], ["a", "b", "c"])
|
|
tm.assert_categorical_equal(sc, exp)
|
|
|
|
def test_map(self):
|
|
sc = tm.SubclassedCategorical(["a", "b", "c"])
|
|
res = sc.map(lambda x: x.upper())
|
|
assert isinstance(res, tm.SubclassedCategorical)
|
|
exp = Categorical(["A", "B", "C"])
|
|
tm.assert_categorical_equal(res, exp)
|