Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/test/System.Web.Mvc.Test/Test/ModelValidatorProvidersTest.cs

@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+using System.Linq;
+using Xunit;
+
+namespace System.Web.Mvc.Test
+{
+    public class ModelValidatorProvidersTest
+    {
+        [Fact]
+        public void CollectionDefaults()
+        {
+            // Arrange
+            Type[] expectedTypes = new Type[]
+            {
+                typeof(DataAnnotationsModelValidatorProvider),
+                typeof(DataErrorInfoModelValidatorProvider),
+                typeof(ClientDataTypeModelValidatorProvider)
+            };
+
+            // Act
+            Type[] actualTypes = ModelValidatorProviders.Providers.Select(p => p.GetType()).ToArray();
+
+            // Assert
+            Assert.Equal(expectedTypes, actualTypes);
+        }
+    }
+}