test: Resolve stylecop lint errors

Author: jbrinkman

tests/Valkey.Glide.IntegrationTests/ConnectionMultiplexerReadFromMappingTests.cs

@@ -387,6 +387,7 @@ public void ClientConfigurationBuilder_NullReadFrom_FlowsToConnectionConfig()
 
     [Theory]
     [InlineData(ReadFromStrategy.Primary, null)]
+    [InlineData(ReadFromStrategy.PrimaryAndSecondary, null)]
     [InlineData(ReadFromStrategy.PreferReplica, null)]
     [InlineData(ReadFromStrategy.AzAffinity, "us-east-1a")]
     [InlineData(ReadFromStrategy.AzAffinityReplicasAndPrimary, "eu-west-1b")]
@@ -401,6 +402,9 @@ public async Task EndToEnd_ReadFromConfiguration_FlowsFromConnectionStringToConn
             case ReadFromStrategy.Primary:
                 connectionString += ",readFrom=Primary";
                 break;
+            case ReadFromStrategy.PrimaryAndSecondary:
+                connectionString += ",readFrom=PrimaryAndSecondary";
+                break;
             case ReadFromStrategy.PreferReplica:
                 connectionString += ",readFrom=PreferReplica";
                 break;
@@ -410,6 +414,8 @@ public async Task EndToEnd_ReadFromConfiguration_FlowsFromConnectionStringToConn
             case ReadFromStrategy.AzAffinityReplicasAndPrimary:
                 connectionString += $",readFrom=AzAffinityReplicasAndPrimary,az={az}";
                 break;
+            default:
+                throw new ArgumentException("Invalid ReadFromStrategy for this test");
         }
 
         // Act

tests/Valkey.Glide.IntegrationTests/ReadFromEndToEndIntegrationTests.cs

@@ -607,10 +607,11 @@ public async Task EndToEnd_PerformanceValidation_MultipleConnectionsWithDifferen
 
         var configurations = new[]
         {
-            ("Primary", ReadFromStrategy.Primary, (string?)null),
-            ("PreferReplica", ReadFromStrategy.PreferReplica, (string?)null),
+            ("Primary", ReadFromStrategy.Primary, null),
+            ("PreferReplica", ReadFromStrategy.PreferReplica, null),
             ("AzAffinity", ReadFromStrategy.AzAffinity, "us-east-1a"),
-            ("AzAffinityReplicasAndPrimary", ReadFromStrategy.AzAffinityReplicasAndPrimary, "eu-west-1b")
+            ("AzAffinityReplicasAndPrimary", ReadFromStrategy.AzAffinityReplicasAndPrimary, "eu-west-1b"),
+            ("PrimaryAndSecondary", ReadFromStrategy.PrimaryAndSecondary, null)
         };
 
         try
@@ -770,13 +771,15 @@ public async Task EndToEnd_FFILayerIntegration_ReadFromConfigurationReachesRustC
         // Test that ReadFrom configuration actually reaches the Rust core (FFI layer)
         // by creating clients with different ReadFrom strategies and verifying they work
 
+#pragma warning disable CS8619
         var testCases = new[]
         {
             new { Strategy = ReadFromStrategy.Primary, Az = (string?)null },
             new { Strategy = ReadFromStrategy.PreferReplica, Az = (string?)null },
             new { Strategy = ReadFromStrategy.AzAffinity, Az = "us-east-1a" },
             new { Strategy = ReadFromStrategy.AzAffinityReplicasAndPrimary, Az = "eu-west-1b" }
         };
+#pragma warning restore CS8619
 
         foreach (var testCase in testCases)
         {
@@ -907,8 +910,8 @@ public async Task EndToEnd_FFILayerIntegration_ConcurrentConnectionsWithDifferen
 
         var configurations = new[]
         {
-            (ReadFromStrategy.Primary, (string?)null),
-            (ReadFromStrategy.PreferReplica, (string?)null),
+            (ReadFromStrategy.Primary, null),
+            (ReadFromStrategy.PreferReplica, null),
             (ReadFromStrategy.AzAffinity, "us-east-1a"),
             (ReadFromStrategy.AzAffinityReplicasAndPrimary, "eu-west-1b")
         };