Add vWeekday.ical_value for the Component.decoded() polymorphy

CHANGES.rst

@@ -21,7 +21,7 @@ Breaking changes
 New features
 ~~~~~~~~~~~~
 
-- ...
+- Created a :meth:`~icalendar.prop.recur.weekday.vWeekday.ical_value` property for the :class:`~icalendar.prop.recur.weekday.vWeekday` component, mirroring the existing pattern on :class:`~icalendar.prop.boolean.vBoolean`. :pr:`1360`
 
 Bug fixes
 ~~~~~~~~~

src/icalendar/prop/recur/weekday.py

@@ -93,6 +93,16 @@ def from_ical(cls, ical):
         except Exception as e:
             raise ValueError(f"Expected weekday abbreviation, got: {ical}") from e
 
+    @property
+    def ical_value(self) -> str:
+        """Returns the weekday value as a string, for example, ``MO``, ``+2TH``, or ``-1SU``.
+
+        See Also:
+
+            :rfc:`5545#section-3.3.10` for the ``BYDAY`` rule grammar.
+        """
+        return str(self)
+
     @classmethod
     def parse_jcal_value(cls, value: Any) -> Self:
         """Parse a jCal value for vWeekday.

src/icalendar/tests/prop/test_vWeekday.py

@@ -25,3 +25,11 @@ def test_error():
     """Error: Expected weekday abbrevation, got: -100MO"""
     with pytest.raises(ValueError):
         vWeekday.from_ical("-100MO")
+
+
+def test_ical_value():
+    """ical_value property returns the weekday string value."""
+    assert vWeekday("MO").ical_value == "MO"
+    assert vWeekday("+2TH").ical_value == "+2TH"
+    assert vWeekday("-1SU").ical_value == "-1SU"
+    assert isinstance(vWeekday("MO").ical_value, str)