TST: add intersection test non-nano

Author: asishm

pandas/tests/indexes/datetimes/test_setops.py

@@ -681,3 +681,16 @@ def test_union_non_nano_rangelike():
         freq="D",
     )
     tm.assert_index_equal(result, expected)
+
+
+def test_intersection_non_nano_rangelike():
+    # GH 59271
+    l1 = date_range("2024-01-01", "2024-01-03", unit="s")
+    l2 = date_range("2024-01-02", "2024-01-04", unit="s")
+    result = l1.intersection(l2)
+    expected = DatetimeIndex(
+        ["2024-01-02", "2024-01-03"],
+        dtype="datetime64[s]",
+        freq="D",
+    )
+    tm.assert_index_equal(result, expected)