diff --git a/osu.Game.Rulesets.Karaoke.Tests/Beatmaps/TestElementId.cs b/osu.Game.Rulesets.Karaoke.Tests/Beatmaps/TestElementId.cs
index e79d8c312..53ff9cc22 100644
--- a/osu.Game.Rulesets.Karaoke.Tests/Beatmaps/TestElementId.cs
+++ b/osu.Game.Rulesets.Karaoke.Tests/Beatmaps/TestElementId.cs
@@ -84,9 +84,20 @@ public void TestCompareToOther()
         var elementId = new ElementId("1234567");
 
         Assert.AreEqual(elementId.CompareTo(null), 1);
-        Assert.Throws<ArgumentException>(() => elementId.CompareTo(3)); // should not compare to other type
-        Assert.Throws<ArgumentException>(() => elementId.CompareTo("123")); // should not compare to the string also.
-        Assert.DoesNotThrow(() => elementId.CompareTo(new ElementId("1234567")));
+        Assert.Throws<ArgumentException>(() =>
+        {
+            int _ = elementId.CompareTo(3);
+        });
+        Assert.Throws<ArgumentException>(() =>
+        {
+            // should not compare to other type
+            int _ = elementId.CompareTo("123");
+        });
+        Assert.DoesNotThrow(() =>
+        {
+            // should not compare to the string also.
+            int _ = elementId.CompareTo(new ElementId("1234567"));
+        });
     }
 
     [TestCase("1234567", "1234567", true)]
diff --git a/osu.Game.Rulesets.Karaoke.Tests/Screens/Edit/Beatmap/Lyrics/CaretPosition/IndexCaretPositionTest.cs b/osu.Game.Rulesets.Karaoke.Tests/Screens/Edit/Beatmap/Lyrics/CaretPosition/IndexCaretPositionTest.cs
index 1fd78dbcb..c5ed7693e 100644
--- a/osu.Game.Rulesets.Karaoke.Tests/Screens/Edit/Beatmap/Lyrics/CaretPosition/IndexCaretPositionTest.cs
+++ b/osu.Game.Rulesets.Karaoke.Tests/Screens/Edit/Beatmap/Lyrics/CaretPosition/IndexCaretPositionTest.cs
@@ -67,7 +67,10 @@ public void CompareWithDifferentLyric()
         var caretPosition = createBiggerCaretPosition(lyric1);
         var comparedCaretPosition = createSmallerCaretPosition(lyric2);
 
-        Assert.Throws<InvalidOperationException>(() => caretPosition.CompareTo(comparedCaretPosition));
+        Assert.Throws<InvalidOperationException>(() =>
+        {
+            int _ = caretPosition.CompareTo(comparedCaretPosition);
+        });
     }
 
     [Test]
@@ -78,7 +81,10 @@ public void CompareDifferentType()
         var caretPosition = createBiggerCaretPosition(lyric);
         var comparedCaretPosition = new FakeCaretPosition(lyric);
 
-        Assert.Throws<InvalidOperationException>(() => caretPosition.CompareTo(comparedCaretPosition));
+        Assert.Throws<InvalidOperationException>(() =>
+        {
+            int _ = caretPosition.CompareTo(comparedCaretPosition);
+        });
     }
 
     private IIndexCaretPosition createSmallerCaretPosition(Lyric lyric) =>