Add WritableSubResource tests

sdk/resourcemanager/Azure.ResourceManager.Core/src/Resources/SubResource.cs

@@ -1,12 +1,10 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
-
 namespace Azure.ResourceManager.Core
 {
     /// <summary>
-    /// A class representing the a sub resource of ResourceIdentifier.
+    /// A class representing the sub resource of a ResourceIdentifier.
     /// </summary>
     [ReferenceType]
     public class SubResource : SubResource<ResourceIdentifier>
@@ -15,7 +13,7 @@ public class SubResource : SubResource<ResourceIdentifier>
         /// Initializes an empty instance of <see cref="SubResource"/> for mocking.
         /// </summary>
         [InitializationConstructor]
-        public SubResource()
+        protected SubResource()
         {
         }
 
@@ -26,7 +24,7 @@ protected internal SubResource(string id) : base(id) { }
     }
 
     /// <summary>
-    /// A class representing a sub-resource that contains only the ID.
+    /// A class representing a sub-resource that contains only the read-only ID.
     /// </summary>
     [ReferenceType(typeof(ResourceIdentifier))]
     [System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.MaintainabilityRules", "SA1402:File may only contain a single type", Justification = "Types differ by type argument only")]
@@ -37,7 +35,7 @@ public partial class SubResource<TIdentifier>
         /// Initializes an empty instance of <see cref="SubResource{TIdentifier}"/> for mocking.
         /// </summary>
         [InitializationConstructor]
-        public SubResource()
+        protected SubResource()
         {
         }
 

sdk/resourcemanager/Azure.ResourceManager.Core/src/Resources/WritableSubResource.Serialization.cs

@@ -24,6 +24,11 @@ void IUtf8JsonSerializable.Write(Utf8JsonWriter writer)
             }
 
             writer.WriteStartObject();
+            if (Optional.IsDefined(Id))
+            {
+                writer.WritePropertyName("id");
+                writer.WriteStringValue(Id);
+            }
             writer.WriteEndObject();
         }
 

sdk/resourcemanager/Azure.ResourceManager.Core/src/Resources/WritableSubResource.cs

@@ -1,13 +1,10 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-using System;
-using System.Collections.Generic;
-
 namespace Azure.ResourceManager.Core
 {
     /// <summary>
-    /// A class representing the a writable sub resource of ResourceIdentifier.
+    /// A class representing the writable sub resource of a ResourceIdentifier.
     /// </summary>
     [ReferenceType]
     public class WritableSubResource : WritableSubResource<ResourceIdentifier>
@@ -27,11 +24,11 @@ protected internal WritableSubResource(string id) : base(id) { }
     }
 
     /// <summary>
-    /// A class representing a sub-resource that contains only the read-only ID.
+    /// A class representing a sub-resource that contains only the ID.
     /// </summary>
     [ReferenceType(typeof(ResourceIdentifier))]
     [System.Diagnostics.CodeAnalysis.SuppressMessage("StyleCop.CSharp.MaintainabilityRules", "SA1402:File may only contain a single type", Justification = "Types differ by type argument only")]
-    public partial class WritableSubResource <TIdentifier>
+    public partial class WritableSubResource<TIdentifier>
         where TIdentifier : ResourceIdentifier
     {
         /// <summary>
@@ -47,7 +44,7 @@ public WritableSubResource()
         [SerializationConstructor]
         protected internal WritableSubResource(string id)
         {
-           Id = (TIdentifier)id;
+            Id = (TIdentifier)id;
         }
 
         /// <summary>

sdk/resourcemanager/Azure.ResourceManager.Core/tests/Unit/ReferenceTypeTests.cs

@@ -34,8 +34,8 @@ public void ValidateInitializationConstructor()
                 var initializationCtor = refType.GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
                     .Where(c => HasAttribute(c.GetCustomAttributes<Attribute>(false), InitializationConstructor)).FirstOrDefault();
                 Assert.IsNotNull(initializationCtor);
-                Assert.IsTrue(refType.IsAbstract == initializationCtor.IsFamily, $"If {refType.Name} is abstract then its initialization ctor should be protected");
-                Assert.IsTrue(refType.IsAbstract != initializationCtor.IsPublic, $"If {refType.Name} is abstract then its initialization ctor should be public");
+                Assert.IsTrue((refType.IsAbstract || AllNonSetterProperties(refType)) == initializationCtor.IsFamily, $"If {refType.Name} is abstract then its initialization ctor should be protected");
+                Assert.IsTrue((refType.IsAbstract || AllNonSetterProperties(refType)) != initializationCtor.IsPublic, $"If {refType.Name} is abstract then its initialization ctor should not be public");
                 Assert.IsFalse(initializationCtor.IsAssembly, $"Initialization ctor for {refType.Name} should not be internal");
             }
         }
@@ -44,5 +44,18 @@ public bool HasAttribute(IEnumerable<Attribute> list, Type attributeType)
         {
             return list.FirstOrDefault(a => a.GetType() == attributeType) is not null;
         }
+
+        public bool AllNonSetterProperties(Type referenceType)
+        {
+            List<PropertyInfo> properties = referenceType.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
+            foreach (var property in properties)
+            {
+                if (property.CanWrite)
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
     }
 }

sdk/resourcemanager/Azure.ResourceManager.Core/tests/Unit/WritableSubResourceTests.cs

@@ -0,0 +1,27 @@
+using System.Text.Json;
+using Azure.ResourceManager.TestFramework;
+using NUnit.Framework;
+
+namespace Azure.ResourceManager.Core.Tests
+{
+    [Parallelizable]
+    public class WritableSubResourceTests
+    {
+        [Test]
+        public void Deserialization()
+        {
+            var id = "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/testRg/providers/Microsoft.ClassicStorage/storageAccounts/account1";
+            var expected = "{\"id\":\"" + id + "\"}";
+            var resource1 = new WritableSubResource(id);
+            var jsonString = JsonHelper.SerializeToString(resource1);
+            var json = JsonDocument.Parse(jsonString).RootElement;
+            var resource2 = WritableSubResource.DeserializeWritableSubResource(json);
+            Assert.AreEqual(expected, jsonString);
+            Assert.AreEqual(jsonString, JsonHelper.SerializeToString(resource2));
+
+            var resource3 = new WritableSubResource();
+            resource3.Id = id;
+            Assert.AreEqual(jsonString, JsonHelper.SerializeToString(resource3));
+        }
+    }
+}