yaml linter fix & alert sprite specifier changes (#10015)

* Sprite specifier/serializer update

* Immume

* Fix tests

* hooray, more bad test prototypes

* add some comments

Content.Tests/Shared/Alert/AlertManagerTests.cs

@@ -16,11 +16,13 @@ namespace Content.Tests.Shared.Alert
         const string PROTOTYPES = @"
 - type: alert
   id: LowPressure
-  icon: /Textures/Interface/Alerts/Pressure/lowpressure.png
+  icons:
+  - /Textures/Interface/Alerts/Pressure/lowpressure.png
 
 - type: alert
   id: HighPressure
-  icon: /Textures/Interface/Alerts/Pressure/highpressure.png
+  icons:
+  - /Textures/Interface/Alerts/Pressure/highpressure.png
 ";
 
         [Test]
@@ -37,14 +39,14 @@ namespace Content.Tests.Shared.Alert
             prototypeManager.LoadFromStream(new StringReader(PROTOTYPES));
 
             Assert.That(EntitySystem.Get<AlertsSystem>().TryGet(AlertType.LowPressure, out var lowPressure));
-            Assert.That(lowPressure.Icon, Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/lowpressure.png"))));
+            Assert.That(lowPressure.Icons[0], Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/lowpressure.png"))));
             Assert.That(EntitySystem.Get<AlertsSystem>().TryGet(AlertType.HighPressure, out var highPressure));
-            Assert.That(highPressure.Icon, Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/highpressure.png"))));
+            Assert.That(highPressure.Icons[0], Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/highpressure.png"))));
 
             Assert.That(EntitySystem.Get<AlertsSystem>().TryGet(AlertType.LowPressure, out lowPressure));
-            Assert.That(lowPressure.Icon, Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/lowpressure.png"))));
+            Assert.That(lowPressure.Icons[0], Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/lowpressure.png"))));
             Assert.That(EntitySystem.Get<AlertsSystem>().TryGet(AlertType.HighPressure, out highPressure));
-            Assert.That(highPressure.Icon, Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/highpressure.png"))));
+            Assert.That(highPressure.Icons[0], Is.EqualTo(new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Alerts/Pressure/highpressure.png"))));
         }
     }
 }

Content.Tests/Shared/Alert/AlertOrderPrototypeTests.cs

@@ -26,35 +26,44 @@ namespace Content.Tests.Shared.Alert
 
 - type: alert
   id: LowPressure
+  icons: []
   category: Pressure
 
 - type: alert
   id: HighPressure
+  icons: []
   category: Pressure
 
 - type: alert
   id: Peckish
+  icons: []
   category: Hunger
 
 - type: alert
   id: Stun
+  icons: []
 
 - type: alert
   id: Handcuffed
+  icons: []
 
 - type: alert
   id: Hot
+  icons: []
   category: Temperature
 
 - type: alert
   id: Cold
+  icons: []
   category: Temperature
 
 - type: alert
   id: Weightless
+  icons: []
 
 - type: alert
   id: PilotingShuttle
+  icons: []
 ";
 
         [Test]

Content.Tests/Shared/Alert/AlertPrototypeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.IO;
 using Content.Shared.Alert;
 using NUnit.Framework;
@@ -17,7 +17,14 @@ namespace Content.Tests.Shared.Alert
 - type: alert
   id: HumanHealth
   category: Health
-  icon: /Textures/Interface/Alerts/Human/human.rsi/human.png
+  icons:
+  - /Textures/Interface/Alerts/Human/human.rsi/human0.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human1.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human2.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human3.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human4.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human5.png
+  - /Textures/Interface/Alerts/Human/human.rsi/human6.png
   name: Health
   description: ""[color=green]Green[/color] good. [color=red]Red[/color] bad.""
   minSeverity: 0