[fix] Make Id property of all EasyPostObject publicly settable (#502)

- Make `Id` property of all EasyPostObject public (could override in future if needed)
- Add integration test to verify users can set Id of an object
- Remove "Test" prefix from integration tests

EasyPost.Integration/Basics.cs

@@ -11,7 +11,7 @@ public class Basics
     ///     If this test can be compiled, then the response objects have public constructors.
     /// </summary>
     [Fact, Testing.Access, Testing.Compile]
-    public void TestUserCanLocallyConstructResponseObject()
+    public void UserCanLocallyConstructResponseObject()
     {
         var address = new Address();
         var addressCollection = new AddressCollection();
@@ -87,12 +87,25 @@ public void TestUserCanLocallyConstructResponseObject()
         var webhook = new Webhook();
     }
 
+    /// <summary>
+    ///     Test that an end-user can locally construct an object and set its ID.
+    /// </summary>
+    [Fact, Testing.Access, Testing.Compile]
+    public void UserCanSetObjectId()
+    {
+        // Construct a local object, setting its ID
+        var address = new Address { Id = "some_id" };
+
+        // Assert that the ID was set
+        Assert.Equal("some_id", address.Id);
+    }
+
     /// <summary>
     ///     Test that an end-user can locally construct all available hooks.
     ///     If this test can be compiled, then the hooks are publicly accessible.
     /// </summary>
     [Fact, Testing.Access, Testing.Compile]
-    public void TestUserCanCreateHooks()
+    public void UserCanCreateHooks()
     {
         // Can set up each hook event handler during construction
         var hooks = new Hooks()

EasyPost.Integration/Synchronous.cs

@@ -15,7 +15,7 @@ public class Synchronous
     ///     Test that an end-user can run asynchronous code asynchronously
     /// </summary>
     [Fact, Testing.Run]
-    public async void TestUserCanRunAsyncCodeAsynchronously()
+    public async void UserCanRunAsyncCodeAsynchronously()
     {
         var client = Vcr.SetUpTest("async");
 
@@ -42,7 +42,7 @@ public async void TestUserCanRunAsyncCodeAsynchronously()
     ///     Test that an end-user can run asynchronous code synchronously via .Result
     /// </summary>
     [Fact, Testing.Run]
-    public void TestUserCanRunAsyncCodeSynchronouslyViaResult()
+    public void UserCanRunAsyncCodeSynchronouslyViaResult()
     {
         var client = Vcr.SetUpTest("via_result");
 
@@ -69,7 +69,7 @@ public void TestUserCanRunAsyncCodeSynchronouslyViaResult()
     ///     Test that an end-user can run asynchronous code synchronously via .GetAwaiter().GetResult()
     /// </summary>
     [Fact, Testing.Run]
-    public void TestUserCanRunAsyncCodeSynchronouslyViaGetAwaiter()
+    public void UserCanRunAsyncCodeSynchronouslyViaGetAwaiter()
     {
         var client = Vcr.SetUpTest("via_get_awaiter");
 
@@ -105,7 +105,7 @@ public class SynchronousMvcController : System.Web.Mvc.Controller
     ///     Test that an end-user can run asynchronous code asynchronously
     /// </summary>
     [Fact, Testing.Run]
-    public async Task<ActionResult> TestUserCanRunAsyncCodeAsynchronously()
+    public async Task<ActionResult> UserCanRunAsyncCodeAsynchronously()
     {
         var client = Vcr.SetUpTest("async");
 
@@ -135,7 +135,7 @@ public async Task<ActionResult> TestUserCanRunAsyncCodeAsynchronously()
     ///     Ref: https://gist.github.com/leonardochaia/98ce57bcee39c18d88682424a6ffe305
     /// </summary>
     [Fact, Testing.Run]
-    public ActionResult TestUserCanRunAsyncCodeSynchronouslyViaTaskFactory()
+    public ActionResult UserCanRunAsyncCodeSynchronouslyViaTaskFactory()
     {
         var client = Vcr.SetUpTest("via_task_factory");
 

EasyPost/_base/EasyPostObject.cs

@@ -24,7 +24,7 @@ public abstract class EasyPostObject : EphemeralEasyPostObject
         ///     The EasyPost ID for this object.
         /// </summary>
         [JsonProperty("id")]
-        public string? Id { get; internal set; }
+        public string? Id { get; set; }
 
         /// <summary>
         ///     The date and time this object was last updated.