Add E2E test for browser with WASM disabled

src/Tests/AliasVault.E2ETests/Tests/Client/Shard3/BrowserWasmTests.cs

@@ -0,0 +1,77 @@
+//-----------------------------------------------------------------------
+// <copyright file="BrowserWasmTests.cs" company="lanedirt">
+// Copyright (c) lanedirt. All rights reserved.
+// Licensed under the MIT license. See LICENSE.md file in the project root for full license information.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace AliasVault.E2ETests.Tests.Client.Shard3;
+
+using Microsoft.Extensions.Configuration;
+using Microsoft.Playwright;
+
+/// <summary>
+/// End-to-end tests for user two-factor authentication.
+/// </summary>
+[Parallelizable(ParallelScope.Self)]
+[Category("ClientTests")]
+[TestFixture]
+public class BrowserWasmTests : ClientPlaywrightTest
+{
+    /// <summary>
+    /// Test if setting up two-factor authentication and then logging in works.
+    /// </summary>
+    /// <returns>Async task.</returns>
+    [Test]
+    public async Task ShowsWarningWhenWebAssemblyNotSupported()
+    {
+        // Store current browser context and page.
+        var originalContext = Context;
+        var originalPage = Page;
+
+        try
+        {
+            // Create a new browser context and page with WebAssembly disabled to test the error message.
+            var configuration = new ConfigurationBuilder()
+                .SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
+                .AddJsonFile($"appsettings.Development.json", optional: true, reloadOnChange: true)
+                .AddEnvironmentVariables()
+                .Build();
+            bool headless = configuration.GetValue("PlaywrightSettings:Headless", true);
+            var playwright = await Playwright.CreateAsync();
+            Browser = await playwright.Chromium.LaunchAsync(new()
+            {
+                Args = ["--js-flags=--noexpose-wasm"],
+                Headless = headless,
+            });
+            Context = await Browser.NewContextAsync();
+            Page = await Context.NewPageAsync();
+
+            // Navigate to the app.
+            await Page.GotoAsync(AppBaseUrl);
+
+            // Wait for error message to appear.
+            var errorMessage = Page.Locator("#error-message");
+            await errorMessage.WaitForAsync(new LocatorWaitForOptions
+            {
+                State = WaitForSelectorState.Visible,
+                Timeout = 5000,
+            });
+
+            // Verify the error message.
+            var message = await errorMessage.TextContentAsync();
+            Assert.That(message, Does.Contain("AliasVault requires WebAssembly"));
+        }
+        finally
+        {
+            // Clean up the test context and page.
+            await Page.CloseAsync();
+            await Context.CloseAsync();
+
+            // Restore original context and page for further tests.
+            Context = originalContext;
+            Page = originalPage;
+        }
+    }
+}