Comply to latest standards

Author: Andrew Omondi

tests/Microsoft.Graph.DotnetCore.Test/Requests/Functional/BatchRequestTests.cs

@@ -33,9 +33,11 @@ public async Task JsonBatchRequest()
             BatchRequestStep requestStep2 = new BatchRequestStep("2", httpRequestMessage2, new List<string> { "1" });
 
             var baseClient = new GraphServiceClient(new HttpClientRequestAdapter(new AnonymousAuthenticationProvider()));
+#pragma warning disable CS0618 // Type or member is obsolete
             BatchRequestContent batchRequestContent = new BatchRequestContent(baseClient);
             batchRequestContent.AddBatchRequestStep(requestStep1);
             batchRequestContent.AddBatchRequestStep(requestStep2);
+#pragma warning restore CS0618 // Type or member is obsolete
 
             HttpResponseMessage response = await httpClient.PostAsync("https://graph.microsoft.com/v1.0/$batch", batchRequestContent);
 

tests/Microsoft.Graph.DotnetCore.Test/Requests/Functional/PlannerTests.cs

@@ -198,7 +198,7 @@ public async Task PlannerTaskDetailsUpdate()
             Assert.Equal(2, updatedTaskDetails.Checklist.AdditionalData.Count());
             Assert.Equal("Do something", ((PlannerCheckListItem)updatedTaskDetails.Checklist.AdditionalData[checklistItemId1])?.Title);
             Assert.Equal("Do something else", ((PlannerCheckListItem)updatedTaskDetails.Checklist.AdditionalData[checklistItemId2])?.Title);
-            Assert.Equal(1, updatedTaskDetails.References.AdditionalData.Count());
+            Assert.Single(updatedTaskDetails.References.AdditionalData);
             Assert.Equal("Developer resources", ((PlannerExternalReference)updatedTaskDetails.References.AdditionalData["http://developer.microsoft.com"])?.Alias);
         }
 

tests/Microsoft.Graph.DotnetCore.Test/Requests/Functional/SharePointTests.cs

@@ -63,10 +63,9 @@ public async Task It_gets_the_sites_drives_root_children()
                 Assert.True(siteSearchResults.Value.Count > 0, "Expected at least one search result. Got zero. Check test data.");
 
                 // Call the Microsoft Graph API. Get the sites drives collection page.
-                var drives = graphClient.Sites[siteSearchResults.Value[0].Id]
+                var drives = await graphClient.Sites[siteSearchResults.Value[0].Id]
                                                                                        .Drives
-                                                                                       .GetAsync()
-                                                                                       .Result;
+                                                                                       .GetAsync();
 
                 // Call the Microsoft Graph API. Get the drives collection page.
                 // var library = graphClient.Sites[siteSearchResults.Value[0].Id]