Fix: Add additional filter warnings to the failing tests

Author: raghavendranath

pandas/tests/groupby/test_groupby.py

@@ -2851,6 +2851,9 @@ def test_groupby_with_Time_Grouper(unit):
     tm.assert_frame_equal(result, expected_output)
 
 
+@pytest.mark.filterwarnings(
+    "ignore:Parsing non-ISO datetime strings:pandas.errors.Pandas4Warning"
+)
 def test_groupby_series_with_datetimeindex_month_name():
     # GH 48509
     s = Series([0, 1, 0], index=date_range("2022-01-01", periods=3), name="jan")

pandas/tests/indexing/multiindex/test_slice.py

@@ -308,6 +308,9 @@ def test_multiindex_slicers_datetimelike(self):
         ]
         tm.assert_frame_equal(result, expected)
 
+    @pytest.mark.filterwarnings(
+        "ignore:Parsing non-ISO datetime strings:pandas.errors.Pandas4Warning"
+    )
     def test_multiindex_slicers_edges(self):
         # GH 8132
         # various edge cases

pandas/tests/indexing/test_loc.py

@@ -261,6 +261,9 @@ def test_loc_getitem_single_boolean_arg(self, obj, key, exp):
 
 class TestLocBaseIndependent:
     # Tests for loc that do not depend on subclassing Base
+    @pytest.mark.filterwarnings(
+        "ignore:Parsing non-ISO datetime strings:pandas.errors.Pandas4Warning"
+    )
     def test_loc_npstr(self):
         # GH#45580
         df = DataFrame(index=date_range("2021", "2022"))
@@ -1262,6 +1265,9 @@ def test_loc_setitem_str_to_small_float_conversion_type(self, using_infer_string
         expected = DataFrame(col_data, columns=["A"], dtype=float)
         tm.assert_frame_equal(result, expected)
 
+    @pytest.mark.filterwarnings(
+        "ignore:Parsing non-ISO datetime strings:pandas.errors.Pandas4Warning"
+    )
     def test_loc_getitem_time_object(self, frame_or_series):
         rng = date_range("1/1/2000", "1/5/2000", freq="5min")
         mask = (rng.hour == 9) & (rng.minute == 30)
@@ -2415,6 +2421,9 @@ def test_loc_getitem_partial_slice_non_monotonicity(
 
 
 class TestLabelSlicing:
+    @pytest.mark.filterwarnings(
+        "ignore:Parsing non-ISO datetime strings:pandas.errors.Pandas4Warning"
+    )
     def test_loc_getitem_slicing_datetimes_frame(self):
         # GH#7523