5521 - Rename TryGetValue to TryGet/TryGetAsync (#19478)

* Rename TryGetValue to TryGet/TryGetAsync

* Update ContainerBase.cs

* Update ContainerBase.cs

* Update TryGet method and test class

* Update CheckResourceExists.cs

* Rename TryGetValue to TryGet/TryGetAsync

* Update ContainerBase.cs

* Update ContainerBase.cs

* Update TryGet method and test class

* Update CheckResourceExists.cs

* Update ContainerBaseTest.cs

* Update TryGet Test

* Update tests

sdk/resourcemanager/Azure.ResourceManager.Core/src/ContainerBase.cs

@@ -4,6 +4,8 @@
 using Azure.Core;
 using System;
 using System.Globalization;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace Azure.ResourceManager.Core
 {
@@ -37,29 +39,47 @@ protected ContainerBase(ResourceOperationsBase parent)
         }
 
         /// <summary>
-        /// Gets the parent resource of this resource
+        /// Gets the parent resource of this resource.
         /// </summary>
         protected ResourceOperationsBase Parent { get; }
 
         /// <summary>
-        /// Returns the resource from Azure if it exists
+        /// Returns the resource from Azure if it exists.
         /// </summary>
         /// <param name="resourceName"> The name of the resource you want to get. </param>
-        /// <param name="resource"> The resource if it existed, null otherwise. </param>
         /// <returns> Whether or not the resource existed. </returns>
-        public virtual bool TryGetValue(string resourceName, out ArmResponse<TOperations> resource)
+        public virtual TOperations TryGet(string resourceName)
         {
             var op = GetOperation(resourceName);
 
             try
             {
-                resource = op.Get();
-                return true;
+                return op.Get().Value;
+            }
+            catch (RequestFailedException e) when (e.Status == 404)
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Returns the resource from Azure if it exists.
+        /// </summary>
+        /// <param name="resourceName"> The name of the resource you want to get. </param>
+        /// <param name="cancellationToken"> A token to allow the caller to cancel the call to the service.
+        /// The default value is <see cref="CancellationToken.None" />. </param>
+        /// <returns> Whether or not the resource existed. </returns>
+        public async virtual Task<TOperations> TryGetAsync(string resourceName, CancellationToken cancellationToken = default)
+        {
+            var op = GetOperation(resourceName);
+
+            try
+            {
+                return (await op.GetAsync(cancellationToken).ConfigureAwait(false)).Value;
             }
             catch
             {
-                resource = null;
-                return false;
+                return null;
             }
         }
 
@@ -70,8 +90,7 @@ public virtual bool TryGetValue(string resourceName, out ArmResponse<TOperations
         /// <returns> Whether or not the resource existed. </returns>
         public virtual bool DoesExist(string resourceName)
         {
-            ArmResponse<TOperations> output;
-            return TryGetValue(resourceName, out output);
+            return TryGet(resourceName) == null ? false : true;
         }
 
         /// <summary>

sdk/resourcemanager/Azure.ResourceManager.Core/tests/Scenario/ContainerTryGetTest.cs

@@ -0,0 +1,61 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+using System;
+using System.Threading.Tasks;
+using Azure.Identity;
+using Azure.Core.TestFramework;
+using NUnit.Framework;
+
+namespace Azure.ResourceManager.Core.Tests
+{
+    public class ContainerTryGetTest : ResourceManagerTestBase
+    {
+        private AzureResourceManagerClient _client;
+        private ResourceGroupContainer _container;
+        private ResourceGroup _resourceGroup;
+        private string _rgName;
+
+        public ContainerTryGetTest(bool isAsync)
+            : base(isAsync)//, RecordedTestMode.Record)
+        {
+        }
+
+        [SetUp]
+        public void SetUp()
+        {
+            _rgName = Recording.GenerateAssetName("CoreRg");
+            _client = GetArmClient();
+            _container = _client.DefaultSubscription.GetResourceGroupContainer();
+            _resourceGroup = _container.Construct(LocationData.WestUS2).CreateOrUpdate(_rgName);
+        }
+
+        [TestCase]
+        [RecordedTest]
+        public void TryGetTest() 
+        {
+            ResourceGroup result = _container.TryGet(_rgName);
+            Assert.NotNull(result);
+            Assert.IsTrue(result.Data.Name == _rgName);
+            result = _container.TryGet("FakeName");
+            Assert.IsNull(result);
+        }
+
+        [TestCase]
+        [RecordedTest]
+        public async Task TryGetAsyncTest()
+        {
+            ResourceGroup result = await _container.TryGetAsync(_rgName);
+            Assert.NotNull(result);
+            Assert.IsTrue(result.Data.Name == _rgName);
+            result = await _container.TryGetAsync("FakeName");
+            Assert.IsNull(result);
+        }
+
+        [TestCase]
+        public void DoesExistTest()
+        {
+            Assert.IsTrue(_container.DoesExist(_rgName));
+            Assert.IsFalse(_container.DoesExist("FakeName"));
+        }
+    }
+}