refactor(tests): Verbesserung der Nachrichtenbehandlung und Assert-Bedingungen in AuthClientTests

- Vereinfachte Assertions in StartAsync_ShouldConnectSuccessfully durch Entfernen expliziter Strings
- Aktualisierte ReceiveMessage_ShouldCallOnMessageReceived, um Nachrichteninhalte zu überprüfen
- Refaktorisierte Variablennamen in ReceiveMessage_ShouldCallOnMessageReceived für bessere Verständlichkeit

DigitalData.Auth.Tests/Client/AuthClientTests.cs

@@ -32,8 +32,8 @@ public class AuthClientTests
         // Assert
         Assert.Multiple(() =>
         {
-            Assert.That(client.IsConnected, "Connected");
-            Assert.That(!client.IsConnectionFailed, "There is no fail");
+            Assert.That(client.IsConnected);
+            Assert.That(!client.IsConnectionFailed);
             Assert.That(client.ConnectionError, Is.Null);
         });
     }
@@ -42,7 +42,8 @@ public class AuthClientTests
     public async Task ReceiveMessage_ShouldCallOnMessageReceived()
     {
         // Arrange
-        bool wasCalled = false;
+        string rcv_user = string.Empty;
+        string rcv_msg = string.Empty;
 
         // Sender client
         using var provider_sender = Build(opt => opt.Url = HubUrl);
@@ -53,17 +54,25 @@ public class AuthClientTests
         using var provider_receiver = Build(opt =>
         {
             opt.Url = HubUrl;
-            opt.Events.OnMessageReceived = (user, message, logger) => wasCalled = true;
+            opt.Events.OnMessageReceived = (user, message, logger) =>
+            {
+                rcv_user = user;
+                rcv_msg = message;
+            };
         });
         var client_receiver = provider_receiver.GetRequiredService<IAuthClient>();
 
-        string testUser = "TestUser";
-        string testMessage = "Hello, World!";
+        string user = "user";
+        string message = "message";
 
         // Act
-        await client_receiver.ReceiveMessageAsync(testUser, testMessage);
+        await client_receiver.ReceiveMessageAsync(user, message);
 
         // Assert
-        Assert.That(wasCalled, Is.True, "OnMessageReceived was not called.");
+        Assert.Multiple(() =>
+        {
+            Assert.That(rcv_user, Is.EqualTo(user));
+            Assert.That(rcv_msg, Is.EqualTo(message));
+        });
     }
 }

DigitalData.Auth.Tests/DigitalData.Auth.Tests.csproj

@@ -19,6 +19,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\DigitalData.Auth.Client\DigitalData.Auth.Client.csproj" />
+    <ProjectReference Include="..\src\DigitalData.Auth.API\DigitalData.Auth.API.csproj" />
   </ItemGroup>
 
   <ItemGroup>