diff --git a/src/StevesBot.Worker.Tests/Unit/DiscordGatewayClientTests.cs b/src/StevesBot.Worker.Tests/Unit/DiscordGatewayClientTests.cs
index a3ba10d..6ea423e 100644
--- a/src/StevesBot.Worker.Tests/Unit/DiscordGatewayClientTests.cs
+++ b/src/StevesBot.Worker.Tests/Unit/DiscordGatewayClientTests.cs
@@ -1055,6 +1055,12 @@ public sealed class DiscordGatewayClientTests : IDisposable
     act.Should().Throw<ArgumentNullException>();
   }
 
+  [Fact]
+  public Task On_WhenCalledWithValidEventAndHandler_ItShouldSubscribeHandlerToEvent()
+  {
+    throw new NotImplementedException();
+  }
+
   [Fact]
   public void Off_WhenCalledWithInvalidEvent_ItShouldThrowException()
   {
@@ -1070,6 +1076,12 @@ public sealed class DiscordGatewayClientTests : IDisposable
     act.Should().Throw<ArgumentNullException>();
   }
 
+  [Fact]
+  public Task Off_WhenCalledWithValidEventAndHandler_ItShouldUnsubscribeHandlerFromEvent()
+  {
+    throw new NotImplementedException();
+  }
+
   private static void SetupReceiveMessageSequence(
     Mock<IWebSocket> mockWebSocket,
     Queue<(WebSocketReceiveResult, byte[])> messageQueue