ci: cudf tests fixup (#2795)

Author: MarcoGorelli

tests/expr_and_series/cast_test.py

@@ -245,7 +245,6 @@ def test_cast_datetime_utc(
         "dask" in str(constructor)
         # https://github.com/eakmanrq/sqlframe/issues/406
         or "sqlframe" in str(constructor)
-        or "cudf" in str(constructor)  # https://github.com/rapidsai/cudf/issues/16973
         or ("pyarrow_table" in str(constructor) and is_windows())
     ):
         request.applymarker(pytest.mark.xfail)

tests/expr_and_series/over_test.py

@@ -435,7 +435,8 @@ def test_len_over_2369(constructor: Constructor, request: pytest.FixtureRequest)
 
 
 def test_over_quantile(constructor: Constructor, request: pytest.FixtureRequest) -> None:
-    if "pyarrow_table" in str(constructor) or "pyspark" in str(constructor):
+    if any(x in str(constructor) for x in ("pyarrow_table", "pyspark", "cudf")):
+        # cudf: https://github.com/rapidsai/cudf/issues/18159
         request.applymarker(pytest.mark.xfail)
 
     data = {"a": [1, 2, 3, 4, 5, 6], "b": ["x", "x", "x", "y", "y", "y"]}
@@ -465,7 +466,8 @@ def test_over_quantile(constructor: Constructor, request: pytest.FixtureRequest)
 def test_over_ewm_mean(
     constructor_eager: ConstructorEager, request: pytest.FixtureRequest
 ) -> None:
-    if "pyarrow_table" in str(constructor_eager) or "modin" in str(constructor_eager):
+    if any(x in str(constructor_eager) for x in ("pyarrow_table", "modin", "cudf")):
+        # not implemented
         request.applymarker(pytest.mark.xfail)
     if "pandas" in str(constructor_eager) and PANDAS_VERSION < (1, 2):
         request.applymarker(pytest.mark.xfail(reason="too old, not implemented"))

tests/expr_and_series/rank_test.py

@@ -306,9 +306,10 @@ def test_rank_with_order_by(
 def test_rank_with_order_by_and_partition_by(
     constructor: Constructor, request: pytest.FixtureRequest
 ) -> None:
-    if any(x in str(constructor) for x in ("dask", "pyarrow_table")):
+    if any(x in str(constructor) for x in ("dask", "pyarrow_table", "cudf")):
         # `rank` is not implemented in Dask
         # pyarrow only supports aggregations in `over(partition_by=...)`
+        # cudf: https://github.com/rapidsai/cudf/issues/18159
         request.applymarker(pytest.mark.xfail)
     if "pandas_pyarrow" in str(constructor) and PANDAS_VERSION < (2, 1):
         pytest.skip(reason="bug in old version")