test: fix polars test_concat_diagonal_invalid again

dangotbanned · dangotbanned · commit e5575df05650 · 2026-02-04T12:24:14.000Z
Was so close in (#3434) to getting (#3407) [But fail](https://github.com/narwhals-dev/narwhals/actions/runs/21671044595/job/62478712486?pr=3449) ... maybe 5th's time the charm?
diff --git a/tests/frame/concat_test.py b/tests/frame/concat_test.py
@@ -129,7 +129,7 @@ def test_concat_diagonal_invalid(
         )
     )
     context: Any
-    if impl.is_polars() and POLARS_VERSION < (1, 1):  # pragma: no cover
+    if impl.is_polars() and POLARS_VERSION <= (1, 1):  # pragma: no cover
         context = pytest.raises(
             NarwhalsError,
             match=re.compile(r"(int.+datetime)|(datetime.+int)", re.IGNORECASE),

Original file line number	Diff line number	Diff line change
`@@ -129,7 +129,7 @@ def test_concat_diagonal_invalid(`
`129`	`129`	`)`
`130`	`130`	`)`
`131`	`131`	`context: Any`
`132`		`- if impl.is_polars() and POLARS_VERSION < (1, 1): # pragma: no cover`
	`132`	`+ if impl.is_polars() and POLARS_VERSION <= (1, 1): # pragma: no cover`
`133`	`133`	`context = pytest.raises(`
`134`	`134`	`NarwhalsError,`
`135`	`135`	`match=re.compile(r"(int.+datetime)\|(datetime.+int)", re.IGNORECASE),`