diff --git a/Tests/FontTests.cs b/Tests/FontTests.cs
index 68686c0..b1e7599 100644
--- a/Tests/FontTests.cs
+++ b/Tests/FontTests.cs
@@ -1,5 +1,7 @@
 using System.Text.RegularExpressions;
+using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
+using MLEM.Extensions;
 using MLEM.Font;
 using MLEM.Formatting;
 using MLEM.Formatting.Codes;
@@ -117,5 +119,34 @@ namespace Tests {
             Assert.AreEqual(ret.AllCodes.Length, 12);
         }
 
+        [Test]
+        public void TestConsistency() {
+            void CompareSizes(string s) {
+                var spriteFont = ((GenericSpriteFont) this.font).Font;
+                Assert.AreEqual(spriteFont.MeasureString(s), this.font.MeasureString(s));
+            }
+
+            CompareSizes("This is a very simple test string");
+            CompareSizes("This\n is a very\nsimple test string");
+            CompareSizes("\nThis is a very simple test string");
+            CompareSizes("This is a very simple test string\n");
+            CompareSizes("This is a very simple test string\n\n\n\n\n");
+        }
+
+        [Test]
+        public void TestSpecialCharacters() {
+            void CompareSizes(string s) {
+                var spriteFont = ((GenericSpriteFont) this.font).Font;
+                Assert.AreNotEqual(spriteFont.MeasureString(s), this.font.MeasureString(s));
+            }
+
+            CompareSizes($"This is a very simple{GenericFont.Nbsp}test string");
+            CompareSizes($"This is a very simple{GenericFont.OneEmSpace}test string");
+            CompareSizes($"This is a very simple{GenericFont.Zwsp}test string");
+
+            Assert.AreEqual(new Vector2(this.font.LineHeight, this.font.LineHeight), this.font.MeasureString(GenericFont.OneEmSpace.ToCachedString()));
+            Assert.AreEqual(new Vector2(0, this.font.LineHeight), this.font.MeasureString(GenericFont.Zwsp.ToCachedString()));
+        }
+
     }
 }
\ No newline at end of file