diff --git a/Content.Tests/Shared/Alert/AlertPrototypeTests.cs b/Content.Tests/Shared/Alert/AlertPrototypeTests.cs
index 23ae9c3cce..3427e7d375 100644
--- a/Content.Tests/Shared/Alert/AlertPrototypeTests.cs
+++ b/Content.Tests/Shared/Alert/AlertPrototypeTests.cs
@@ -1,15 +1,8 @@
-using System.IO;
-using Content.Server.Utility;
+using System;
+using System.IO;
 using Content.Shared.Alert;
-using Content.Shared.Interfaces;
 using NUnit.Framework;
-using Robust.Shared.Interfaces.Log;
-using Robust.Shared.Interfaces.Reflection;
-using Robust.Shared.IoC;
-using Robust.Shared.Log;
-using Robust.Shared.Serialization;
 using Robust.Shared.Utility;
-using Robust.UnitTesting;
 using YamlDotNet.RepresentationModel;
 
 namespace Content.Tests.Shared.Alert
@@ -17,7 +10,8 @@ namespace Content.Tests.Shared.Alert
     [TestFixture, TestOf(typeof(AlertPrototype))]
     public class AlertPrototypeTests : ContentUnitTest
     {
-        private const string PROTOTYPE = @"- type: alert
+        private const string Prototypes = @"
+- type: alert
   alertType: HumanHealth
   category: Health
   icon: /Textures/Interface/Alerts/Human/human.rsi/human.png
@@ -34,32 +28,50 @@ namespace Content.Tests.Shared.Alert
             Assert.That((new AlertKey(AlertType.Buckled, AlertCategory.Health)), Is.EqualTo(AlertKey.ForCategory(AlertCategory.Health)));
         }
 
-
         [TestCase(0, "/Textures/Interface/Alerts/Human/human.rsi/human0.png")]
-        [TestCase(null, "/Textures/Interface/Alerts/Human/human.rsi/human0.png")]
         [TestCase(1, "/Textures/Interface/Alerts/Human/human.rsi/human1.png")]
         [TestCase(6, "/Textures/Interface/Alerts/Human/human.rsi/human6.png")]
-        [TestCase(7, "/Textures/Interface/Alerts/Human/human.rsi/human6.png")]
         public void GetsIconPath(short? severity, string expected)
         {
-
             var alert = GetTestPrototype();
             Assert.That(alert.GetIcon(severity), Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath(expected))));
         }
 
+        [TestCase(null, "/Textures/Interface/Alerts/Human/human.rsi/human0.png")]
+        [TestCase(7, "/Textures/Interface/Alerts/Human/human.rsi/human1.png")]
+        public void GetsIconPathThrows(short? severity, string expected)
+        {
+            var alert = GetTestPrototype();
+
+            try
+            {
+                alert.GetIcon(severity);
+            }
+            catch (ArgumentException e)
+            {
+                Assert.Pass();
+            }
+            catch (Exception e)
+            {
+                Assert.Fail($"Unexpected exception: {e}");
+            }
+        }
+
         private AlertPrototype GetTestPrototype()
         {
-            using (TextReader stream = new StringReader(PROTOTYPE))
-            {
-                var yamlStream = new YamlStream();
-                yamlStream.Load(stream);
-                var document = yamlStream.Documents[0];
-                var rootNode = (YamlSequenceNode) document.RootNode;
-                var proto = (YamlMappingNode) rootNode[0];
-                var newReagent = new AlertPrototype();
-                newReagent.LoadFrom(proto);
-                return newReagent;
-            }
+            using TextReader stream = new StringReader(Prototypes);
+
+            var yamlStream = new YamlStream();
+            yamlStream.Load(stream);
+
+            var document = yamlStream.Documents[0];
+            var rootNode = (YamlSequenceNode) document.RootNode;
+            var proto = (YamlMappingNode) rootNode[0];
+
+            var newReagent = new AlertPrototype();
+            newReagent.LoadFrom(proto);
+
+            return newReagent;
         }
     }
 }