Move rrule test and add dev dependency

Author: uwefladrich

requirements-dev.txt

@@ -13,3 +13,4 @@ watchdog==2.1.9
 Sphinx==5.1.1
 sphinx-sitemap==2.2.0
 flake8==5.0.4
+python-dateutil==2.8.2

tests/test_diff_rrules.py

@@ -1713,3 +1713,34 @@ def __thing2(self):
         }
 
         assert expected2 == diff2
+
+    def test_diffs_rrules(self):
+
+        from dateutil.rrule import MONTHLY, rrule
+
+        d = DeepDiff(
+            rrule(freq=MONTHLY, count=5, dtstart=datetime.datetime(2014, 12, 31)),
+            rrule(freq=MONTHLY, count=4, dtstart=datetime.datetime(2011, 12, 31)),
+        )
+
+        assert d == {
+            "values_changed": {
+                "root[0]": {
+                    "new_value": datetime.datetime(2011, 12, 31, 0, 0),
+                    "old_value": datetime.datetime(2014, 12, 31, 0, 0),
+                },
+                "root[1]": {
+                    "new_value": datetime.datetime(2012, 1, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 1, 31, 0, 0),
+                },
+                "root[2]": {
+                    "new_value": datetime.datetime(2012, 3, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 3, 31, 0, 0),
+                },
+                "root[3]": {
+                    "new_value": datetime.datetime(2012, 5, 31, 0, 0),
+                    "old_value": datetime.datetime(2015, 5, 31, 0, 0),
+                },
+            },
+            "iterable_item_removed": {"root[4]": datetime.datetime(2015, 7, 31, 0, 0)},
+        }