From 9a0fe771d5a39ef1791359d790bd5e90c5d3fd37 Mon Sep 17 00:00:00 2001 From: Stijn de Gooijer Date: Sat, 13 Jan 2024 00:54:34 +0100 Subject: [PATCH] Add deprecation test --- py-polars/tests/unit/namespaces/string/test_concat.py | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/py-polars/tests/unit/namespaces/string/test_concat.py b/py-polars/tests/unit/namespaces/string/test_concat.py index 9e71bec8273d..78fdc038da3e 100644 --- a/py-polars/tests/unit/namespaces/string/test_concat.py +++ b/py-polars/tests/unit/namespaces/string/test_concat.py @@ -1,5 +1,7 @@ from datetime import datetime +import pytest + import polars as pl from polars.testing import assert_series_equal @@ -66,3 +68,11 @@ def test_str_concat_datetime() -> None: assert out.item() == "2020-01-01 00:00:00.000000|2022-01-01 00:00:00.000000" out = df.select(pl.col("d").str.concat("|", ignore_nulls=False)) assert out.item() is None + + +def test_str_concat_delimiter_deprecated() -> None: + s = pl.Series(["1", None, "2", None]) + with pytest.deprecated_call(): + result = s.str.concat() + expected = pl.Series(["1-2"]) + assert_series_equal(result, expected)