TST: added test for cut when labels are tuples of Timestamps (#40661) (#43850)

Author: Svanazar

pandas/tests/reshape/test_cut.py

@@ -725,3 +725,12 @@ def test_cut_with_nonexact_categorical_indices():
     )
 
     tm.assert_frame_equal(expected, result)
+
+
+def test_cut_with_timestamp_tuple_labels():
+    # GH 40661
+    labels = [(Timestamp(10),), (Timestamp(20),), (Timestamp(30),)]
+    result = cut([2, 4, 6], bins=[1, 3, 5, 7], labels=labels)
+
+    expected = Categorical.from_codes([0, 1, 2], labels, ordered=True)
+    tm.assert_categorical_equal(result, expected)