Add a register test

Author: HaoK

src/Identity/UI/src/Areas/Identity/Pages/V3/Account/Register.cshtml

@@ -8,7 +8,7 @@
 
 <div class="row">
     <div class="col-md-4">
-        <form id="register" asp-route-returnUrl="@Model.ReturnUrl" method="post">
+        <form id="registerForm" asp-route-returnUrl="@Model.ReturnUrl" method="post">
             <h4>Create a new account.</h4>
             <hr />
             <div asp-validation-summary="All" class="text-danger"></div>
@@ -27,7 +27,7 @@
                 <input asp-for="Input.ConfirmPassword" class="form-control" />
                 <span asp-validation-for="Input.ConfirmPassword" class="text-danger"></span>
             </div>
-            <button type="submit" class="btn btn-default">Register</button>
+            <button id="registerSubmit" type="submit" class="btn btn-default">Register</button>
         </form>
     </div>
     <div class="col-md-6 col-md-offset-2">

src/Identity/UI/src/Areas/Identity/Pages/V4/Account/Register.cshtml

@@ -8,7 +8,7 @@
 
 <div class="row">
     <div class="col-md-4">
-        <form id="register" asp-route-returnUrl="@Model.ReturnUrl" method="post">
+        <form id="registerForm" asp-route-returnUrl="@Model.ReturnUrl" method="post">
             <h4>Create a new account.</h4>
             <hr />
             <div asp-validation-summary="All" class="text-danger"></div>
@@ -27,7 +27,7 @@
                 <input asp-for="Input.ConfirmPassword" class="form-control" />
                 <span asp-validation-for="Input.ConfirmPassword" class="text-danger"></span>
             </div>
-            <button type="submit" class="btn btn-primary">Register</button>
+            <button id="registerSubmit" type="submit" class="btn btn-primary">Register</button>
         </form>
     </div>
     <div class="col-md-6 col-md-offset-2">

src/Identity/test/Identity.FunctionalTests/ManagementTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;

src/Identity/test/Identity.FunctionalTests/Pages/Account/Register.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Collections.Generic;
@@ -12,11 +12,29 @@ namespace Microsoft.AspNetCore.Identity.FunctionalTests.Account
     public class Register : DefaultUIPage
     {
         private IHtmlFormElement _registerForm;
+        private IHtmlFormElement _externalLoginForm;
+        private readonly IHtmlElement _contosoButton;
 
         public Register(HttpClient client, IHtmlDocument register, DefaultUIContext context)
             : base(client, register, context)
         {
-            _registerForm = HtmlAssert.HasForm("#register", register);
+            _registerForm = HtmlAssert.HasForm("#registerForm", register);
+            if (context.ContosoLoginEnabled)
+            {
+                _externalLoginForm = HtmlAssert.HasForm("#external-account", register);
+                _contosoButton = HtmlAssert.HasElement("button[value=Contoso]", register);
+            }
+        }
+
+        public async Task<Contoso.Login> ClickLoginWithContosoLinkAsync()
+        {
+            var externalFormResponse = await Client.SendAsync(_externalLoginForm, _contosoButton);
+            var goToContosoLogin = ResponseAssert.IsRedirect(externalFormResponse);
+            var contosoLoginResponse = await Client.GetAsync(goToContosoLogin);
+
+            var contosoLogin = await ResponseAssert.IsHtmlDocumentAsync(contosoLoginResponse);
+
+            return new Contoso.Login(Client, contosoLogin, Context);
         }
 
         public async Task<Index> SubmitRegisterFormForValidUserAsync(string userName, string password)

src/Identity/test/Identity.FunctionalTests/RegistrationTests.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -56,7 +56,7 @@ void ConfigureTestServices(IServiceCollection services) =>
         }
 
         [Fact]
-        public async Task CanRegisterWithASocialLoginProvider()
+        public async Task CanRegisterWithASocialLoginProviderFromLogin()
         {
             // Arrange
             void ConfigureTestServices(IServiceCollection services) =>
@@ -75,6 +75,26 @@ void ConfigureTestServices(IServiceCollection services) =>
             await UserStories.RegisterNewUserWithSocialLoginAsync(client, userName, email);
         }
 
+        [Fact]
+        public async Task CanRegisterWithASocialLoginProviderFromRegister()
+        {
+            // Arrange
+            void ConfigureTestServices(IServiceCollection services) =>
+                services
+                    .SetupTestThirdPartyLogin();
+
+            var client = ServerFactory
+                .WithWebHostBuilder(whb => whb.ConfigureServices(ConfigureTestServices))
+                .CreateClient();
+
+            var guid = Guid.NewGuid();
+            var userName = $"{guid}";
+            var email = $"{guid}@example.com";
+
+            // Act & Assert
+            await UserStories.RegisterNewUserWithSocialLoginAsyncViaRegisterPage(client, userName, email);
+        }
+
         [Fact]
         public async Task CanRegisterWithASocialLoginProvider_WithGlobalAuthorizeFilter()
         {

src/Identity/test/Identity.FunctionalTests/UserStories.cs

@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -55,6 +55,7 @@ internal static async Task<DefaultUIPage> LockoutExistingUserAsync(HttpClient cl
             return await login.LockoutUserAsync(userName, password);
         }
 
+        // This is via login page
         internal static async Task<Index> RegisterNewUserWithSocialLoginAsync(HttpClient client, string userName, string email)
         {
             var index = await Index.CreateAsync(client, new DefaultUIContext().WithSocialLoginEnabled());
@@ -68,6 +69,19 @@ internal static async Task<Index> RegisterNewUserWithSocialLoginAsync(HttpClient
             return await externalLogin.SendEmailAsync(email);
         }
 
+        internal static async Task<Index> RegisterNewUserWithSocialLoginAsyncViaRegisterPage(HttpClient client, string userName, string email)
+        {
+            var index = await Index.CreateAsync(client, new DefaultUIContext().WithSocialLoginEnabled());
+
+            var register = await index.ClickRegisterLinkAsync();
+
+            var contosoLogin = await register.ClickLoginWithContosoLinkAsync();
+
+            var externalLogin = await contosoLogin.SendNewUserNameAsync(userName);
+
+            return await externalLogin.SendEmailAsync(email);
+        }
+
         internal static async Task<Account.Manage.Index> SendEmailConfirmationLinkAsync(Index index)
         {
             var manage = await index.ClickManageLinkAsync();