Move coverage tests to their natural homes

AI disclosure: I used OpenAI Codex (GPT-5.6) to apply the requested test organization changes, review the diff, and verify formatting and the five affected tests.

Author: karurukaruru

src/icalendar/tests/prop/test_date_and_time.py

@@ -6,7 +6,7 @@
 
 import pytest
 
-from icalendar import Component, vDatetime, vDDDLists, vDDDTypes, vTime
+from icalendar import Component, vDate, vDatetime, vDDDLists, vDDDTypes, vTime
 from icalendar.parser_tools import to_unicode
 from icalendar.prop import VPROPERTY
 from icalendar.timezone.tzid import is_utc
@@ -15,6 +15,11 @@
     from icalendar.cal.event import Event
 
 
+def test_vdate_rejects_invalid_calendar_date():
+    with pytest.raises(ValueError, match="Wrong date format 20250230"):
+        vDate.from_ical("20250230")
+
+
 @pytest.fixture(
     params=[
         vDatetime(datetime(2018, 1, 1, tzinfo=ZoneInfo("UTC"))),

src/icalendar/tests/prop/test_issue_698_more_coverage.py

@@ -344,6 +344,21 @@ def test_prop_vCategory(self):
         cats = list(c)
         assert cats == ["APPOINTMENT", "EDUCATION"]
 
+    def test_vcategory_hash(self):
+        from icalendar.prop import vCategory
+
+        category = vCategory(["WORK", "PERSONAL"])
+        assert hash(category) == hash(tuple(category.cats))
+
+    def test_vcategory_repr(self):
+        from icalendar.prop import vCategory
+
+        category = vCategory(["WORK", "PERSONAL"])
+        category_repr = repr(category)
+        assert category_repr == (
+            "vCategory([vText(b'WORK'), vText(b'PERSONAL')], params=Parameters({}))"
+        )
+
     def test_prop_TypesFactory(self):
         from icalendar.prop import TypesFactory
 

src/icalendar/tests/prop/test_unit.py

@@ -1,5 +1,6 @@
 import pytest
 
+from icalendar.error import JCalParsingError
 from icalendar.prop import vWeekday
 
 
@@ -46,3 +47,11 @@ def test_ical_value():
     assert vWeekday("+2TH").ical_value == "+2TH"
     assert vWeekday("-1SU").ical_value == "-1SU"
     assert isinstance(vWeekday("MO").ical_value, str)
+
+
+def test_vweekday_rejects_invalid_jcal_value():
+    with pytest.raises(
+        JCalParsingError,
+        match="The value must be a valid weekday",
+    ):
+        vWeekday.parse_jcal_value("NOT-A-WEEKDAY")

src/icalendar/tests/prop/test_vWeekday.py

@@ -35,6 +35,11 @@ def _line(component: Component, name: str) -> str:
     raise AssertionError(f"{name} not serialized in {component.to_ical()!r}")
 
 
+def test_vunknown_repr():
+    repr_str = repr(vUnknown("a;b"))
+    assert repr_str == "vUnknown(b'a;b')"
+
+
 # Value text exactly as it appears in the content line after the colon. Each is
 # an unknown value (X-MYSTERY) that must survive untouched. Mix of bare and
 # escaped specials, both newline spellings, and a date-time-looking value.