diff --git a/fastkml/helpers.py b/fastkml/helpers.py
index 2f121b66..91fdd273 100644
--- a/fastkml/helpers.py
+++ b/fastkml/helpers.py
@@ -1100,16 +1100,15 @@ def datetime_subelement_kwarg(
         return {}
     node_text = node.text.strip() if node.text else ""
     if node_text:
-        try:
-            return {kwarg: cls.parse(node_text)}  # type: ignore[attr-defined]
-        except ValueError as exc:
-            handle_error(
-                error=exc,
-                strict=strict,
-                element=element,
-                node=node,
-                expected="DateTime",
-            )
+        if kdt := cls.parse(node_text):  # type: ignore[attr-defined]
+            return {kwarg: kdt}
+        handle_error(
+            error=ValueError(f"Invalid DateTime value: {node_text}"),
+            strict=strict,
+            element=element,
+            node=node,
+            expected="DateTime",
+        )
     return {}
 
 
diff --git a/tests/repr_eq_test.py b/tests/repr_eq_test.py
index 3f56a6db..8297258f 100644
--- a/tests/repr_eq_test.py
+++ b/tests/repr_eq_test.py
@@ -16,8 +16,6 @@
 
 """Test the __repr__ and __eq__ methods."""
 
-import difflib
-from textwrap import wrap
 from typing import Final
 
 from pygeoif.geometry import LinearRing
@@ -1903,19 +1901,6 @@ class TestRepr(StdLibrary):
         ],
     )
 
-    def diff_compare(self, a: str, b: str) -> None:
-        """Compare two strings and print the differences."""
-        differ = difflib.Differ()
-        for line, d in enumerate(differ.compare(a.split(), b.split())):
-            if d[0] in ("+", "-"):
-                print(line, d)  # noqa: T201
-
-        for i, chunk in enumerate(zip(wrap(a, 100), wrap(b, 100))):
-            if chunk[0] != chunk[1]:
-                print(i * 100)  # noqa: T201
-                print(chunk[0])  # noqa: T201
-                print(chunk[1])  # noqa: T201
-
     def test_repr(self) -> None:
         """Test the __repr__ method."""
         new_doc = eval(repr(self.clean_doc), {}, eval_locals)  # noqa: S307
@@ -1929,10 +1914,10 @@ def test_str(self) -> None:
 
     def test_eq_str_round_trip(self) -> None:
         """Test the equality of the original and the round-tripped document."""
-        new_doc = fastkml.KML.from_string(self.clean_doc.to_string(precision=15))
+        new_doc = fastkml.KML.from_string(self.clean_doc.to_string())
 
         assert str(self.clean_doc) == str(new_doc)
-        assert repr(new_doc) == repr(self.clean_doc)
+        assert new_doc == self.clean_doc
         # srict equality is not a given new_doc == self.clean_doc
 
 
diff --git a/tests/styles_test.py b/tests/styles_test.py
index 67c73be1..14ae387d 100644
--- a/tests/styles_test.py
+++ b/tests/styles_test.py
@@ -63,6 +63,7 @@ def test_icon_style(self) -> None:
 
         serialized = icons.to_string()
 
+        assert icons.icon_href == "http://example.com/icon.png"
         assert '<kml:IconStyle xmlns:kml="http://www.opengis.net/kml/2.2"' in serialized
         assert 'id="id-0"' in serialized
         assert 'targetId="target-0"' in serialized
@@ -75,6 +76,23 @@ def test_icon_style(self) -> None:
         assert "</kml:Icon>" in serialized
         assert "</kml:IconStyle>" in serialized
 
+    def test_icon_style_icon_href(self) -> None:
+        icons = styles.IconStyle(
+            icon_href="http://example.com/icon.png",
+        )
+
+        assert icons.icon
+        assert icons.icon.href == "http://example.com/icon.png"
+
+    def test_icon_style_icon_and_href(self) -> None:
+        icons = styles.IconStyle(
+            icon=links.Icon(href="http://example1.com/icon.png"),
+            icon_href="http://example2.com/icon.png",
+        )
+
+        assert icons.icon
+        assert icons.icon.href == "http://example1.com/icon.png"
+
     def test_icon_style_with_hot_spot(self) -> None:
         icon_style = styles.IconStyle(
             ns="{http://www.opengis.net/kml/2.2}",
@@ -131,6 +149,8 @@ def test_icon_style_read(self) -> None:
         assert icons.hot_spot
         assert icons.hot_spot.x == 0.5
         assert icons.hot_spot.y == 0.7
+        assert icons.hot_spot.xunits
+        assert icons.hot_spot.yunits
         assert icons.hot_spot.xunits.value == "fraction"
         assert icons.hot_spot.yunits.value == "insetPixels"
 
@@ -145,6 +165,10 @@ def test_icon_style_with_hot_spot_enum_relaxed(self) -> None:
             "</kml:IconStyle>",
             strict=False,
         )
+
+        assert icons.hot_spot
+        assert icons.hot_spot.xunits
+        assert icons.hot_spot.yunits
         assert icons.hot_spot.xunits.value == "fraction"
         assert icons.hot_spot.yunits.value == "insetPixels"
 
@@ -422,6 +446,7 @@ def test_style_read(self) -> None:
         assert style.styles[0].color_mode == ColorMode.random
         assert style.styles[0].scale == 1.0
         assert style.styles[0].heading == 0
+        assert style.styles[0].icon
         assert style.styles[0].icon.href == "http://example.com/icon.png"
 
         assert isinstance(style.styles[1], styles.LabelStyle)
diff --git a/tests/times_test.py b/tests/times_test.py
index 53306819..402aa2ef 100644
--- a/tests/times_test.py
+++ b/tests/times_test.py
@@ -337,6 +337,17 @@ def test_read_timestamp_ymd(self) -> None:
         assert ts.timestamp.resolution == DateTimeResolution.date
         assert ts.timestamp.dt == datetime.date(1997, 7, 16)
 
+    def test_read_timestamp_invalid(self) -> None:
+        doc = """
+        <TimeStamp>
+          <when>jan1997</when>
+        </TimeStamp>
+        """
+
+        ts = kml.TimeStamp.from_string(doc, ns="", strict=False)
+
+        assert ts.timestamp is None
+
     def test_read_timestamp_utc(self) -> None:
         # dateTime (YYYY-MM-DDThh:mm:ssZ)
         # Here, T is the separator between the calendar and the hourly notation