test: xfail cudf failures (#1259)

Author: MarcoGorelli

tests/frame/unpivot_test.py

@@ -94,7 +94,9 @@ def test_unpivot_mixed_types(
     data: dict[str, Any],
     expected_dtypes: list[DType],
 ) -> None:
-    if "pyarrow_table" in str(constructor) and PYARROW_VERSION < (14, 0, 0):
+    if "cudf" in str(constructor) or (
+        "pyarrow_table" in str(constructor) and PYARROW_VERSION < (14, 0, 0)
+    ):
         request.applymarker(pytest.mark.xfail)
     df = nw.from_native(constructor(data))
     result = df.unpivot(on=["a", "b"], index="idx")

tests/group_by_test.py

@@ -74,7 +74,12 @@ def test_invalid_group_by() -> None:
         )
 
 
-def test_group_by_iter(constructor_eager: ConstructorEager) -> None:
+def test_group_by_iter(
+    constructor_eager: ConstructorEager, request: pytest.FixtureRequest
+) -> None:
+    if "cudf" in str(constructor_eager):
+        # https://github.com/rapidsai/cudf/issues/17187
+        request.applymarker(pytest.mark.xfail)
     df = nw.from_native(constructor_eager(data), eager_only=True)
     expected_keys = [(1,), (3,)]
     keys = []