feat: XUnit V3 - Add support for altering browser options using custom method

src/Playwright.TestAdapter/PlaywrightSettingsProvider.cs

@@ -121,7 +121,12 @@ private static void ValidateBrowserName(string browserName, string fromText, str
     public void Load(XmlReader reader)
     {
         // NOTE: ISettingsProvider::Load is not called when there are no runsettings (either file or passed via command line).
-        _settings = new PlaywrightSettingsXml(reader);
+        Load(new PlaywrightSettingsXml(reader));
+    }
+
+    public static void Load(PlaywrightSettingsXml settings)
+    {
+        _settings = settings;
         Environment.SetEnvironmentVariable("PW_INTERNAL_ADAPTER_SETTINGS", JsonSerializer.Serialize(_settings));
     }
 }

src/Playwright.Xunit.v3/BrowserService.cs

@@ -42,12 +42,12 @@ private BrowserService(IBrowser browser)
         Browser = browser;
     }
 
-    public static Task<BrowserService> Register(WorkerAwareTest test, IBrowserType browserType, (string, BrowserTypeConnectOptions?)? connectOptions)
+    public static Task<BrowserService> Register(WorkerAwareTest test, IBrowserType browserType, (string, BrowserTypeConnectOptions?)? connectOptions, BrowserTypeLaunchOptions? launchOptions)
     {
-        return test.RegisterService("Browser", async () => new BrowserService(await CreateBrowser(browserType, connectOptions).ConfigureAwait(false)));
+        return test.RegisterService("Browser", async () => new BrowserService(await CreateBrowser(browserType, connectOptions, launchOptions).ConfigureAwait(false)));
     }
 
-    private static async Task<IBrowser> CreateBrowser(IBrowserType browserType, (string WSEndpoint, BrowserTypeConnectOptions? Options)? connectOptions)
+    private static async Task<IBrowser> CreateBrowser(IBrowserType browserType, (string WSEndpoint, BrowserTypeConnectOptions? Options)? connectOptions, BrowserTypeLaunchOptions? launchOptions)
     {
         if (connectOptions.HasValue && connectOptions.Value.WSEndpoint != null)
         {
@@ -63,7 +63,9 @@ private static async Task<IBrowser> CreateBrowser(IBrowserType browserType, (str
         {
             return legacyBrowser;
         }
-        return await browserType.LaunchAsync(PlaywrightSettingsProvider.LaunchOptions).ConfigureAwait(false);
+
+        launchOptions ??= PlaywrightSettingsProvider.LaunchOptions;
+        return await browserType.LaunchAsync(launchOptions).ConfigureAwait(false);
     }
 
     // TODO: Remove at some point

src/Playwright.Xunit.v3/BrowserTest.cs

@@ -42,7 +42,7 @@ public async Task<IBrowserContext> NewContext(BrowserNewContextOptions? options
     public override async ValueTask InitializeAsync()
     {
         await base.InitializeAsync().ConfigureAwait(false);
-        var service = await BrowserService.Register(this, BrowserType, await ConnectOptionsAsync()).ConfigureAwait(false);
+        var service = await BrowserService.Register(this, BrowserType, await ConnectOptionsAsync(), await LaunchOptionsAsync()).ConfigureAwait(false);
         Browser = service.Browser;
     }
 
@@ -60,5 +60,13 @@ public override async ValueTask DisposeAsync()
         await base.DisposeAsync().ConfigureAwait(false);
     }
 
+    /// <summary>
+    /// Override to provide custom connect options for the browser.
+    /// </summary>
     public virtual Task<(string, BrowserTypeConnectOptions?)?> ConnectOptionsAsync() => Task.FromResult<(string, BrowserTypeConnectOptions?)?>(null);
+
+    /// <summary>
+    /// Override to provide custom launch options for the browser.
+    /// </summary>
+    public virtual Task<BrowserTypeLaunchOptions?> LaunchOptionsAsync() => Task.FromResult<BrowserTypeLaunchOptions?>(null);
 }