Merge pull request #209 from atc-net/hotfix/improve-validation-rule-CR0208-for-customPagination

Hotfix - Improve validation rule CR0208 for custom-pagination of T

Author: davidkallesen

src/Atc.Rest.ApiGenerator.Framework.Minimal/ContentGenerators/ContentGeneratorServerWebApplicationExtensions.cs

@@ -39,6 +39,8 @@ public string Generate()
             sb.AppendLine(8, "this WebApplication app,");
             sb.AppendLine(8, "string applicationName)");
             sb.AppendLine(4, "{");
+            sb.AppendLine(8, "ArgumentNullException.ThrowIfNull(app);");
+            sb.AppendLine();
             sb.AppendLine(8, "if (!app.Environment.IsDevelopment())");
             sb.AppendLine(8, "{");
             sb.AppendLine(12, "return app;");

src/Atc.Rest.ApiGenerator.OpenApi/Validators/OpenApiDocumentValidator.cs

@@ -502,7 +502,8 @@ private void ValidateOperations(
                     {
                         if (operationValue.IsOperationIdPluralized(operationKey))
                         {
-                            if (!responseModelSchema.IsModelOfTypeArray(modelSchemas))
+                            if (!responseModelSchema.IsModelOfTypeArray(modelSchemas) &&
+                                !responseModelSchema.IsTypeCustomPagination())
                             {
                                 logItems.Add(logItemFactory.Create(logCategory, ValidationRuleNameConstants.Operation08, $"OperationId '{operationValue.OperationId}' is not singular - Response model is defined as a single item."));
                             }