Add config check to CommentsCognitiveTests for Cognitive API

Added validation to ensure CognitiveEndpoint and CognitiveKey are set in AppConfig before running CommentsCognitiveTests. The test is now marked inconclusive if required configuration is missing, preventing false failures.

Author: sambetts

src/AnalyticsEngine/Tests.UnitTests/AppInsightsImportTests.cs

@@ -326,6 +326,10 @@ public async Task CommentsCognitiveTests()
         {
             var config = new AppConfig();
 
+            if (string.IsNullOrEmpty(config.CognitiveEndpoint) || string.IsNullOrEmpty(config.CognitiveKey))
+            {
+                Assert.Inconclusive("CognitiveEndpoint or CognitiveKey is not configured.");
+            }
             var credentials = new AzureKeyCredential(config.CognitiveKey);
             var client = new TextAnalyticsClient(new Uri(config.CognitiveEndpoint), credentials);