Pass all arguments from the C# driver.

Lombiq.Tests.UI/Extensions/FrontendUITestContextExtensions.cs

@@ -7,6 +7,7 @@
 using System;
 using System.IO;
 using System.Reflection;
+using System.Text.Json;
 using System.Threading.Tasks;
 using Xunit.Abstractions;
 
@@ -116,6 +117,11 @@ public static async Task ExecuteJavaScriptTestAsync(
 
         try
         {
+            var browserArguments = context.Configuration.BrowserConfiguration.Arguments;
+            await File.WriteAllTextAsync(
+                context.GetTempSubDirectoryPath("BrowserArguments.json"),
+                JsonSerializer.Serialize(browserArguments));
+
             await Cli.Wrap(command)
                 .WithArguments(arguments)
                 .WithStandardOutputPipe(pipe)

Lombiq.Tests.UI/Services/BrowserConfiguration.cs

@@ -2,6 +2,7 @@
 using Lombiq.Tests.UI.Models;
 using SixLabors.ImageSharp;
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 
 namespace Lombiq.Tests.UI.Services;
@@ -43,4 +44,9 @@ public class BrowserConfiguration
     /// Gets or sets the fake camera video source information. See: <see cref="FakeBrowserVideoSource"/>.
     /// </summary>
     public FakeBrowserVideoSource FakeVideoSource { get; set; }
+
+    /// <summary>
+    /// Gets a list of command line arguments that were passed to the driver during the driver instance creation.
+    /// </summary>
+    public IList<string> Arguments { get; } = [];
 }

Lombiq.Tests.UI/Services/WebDriverFactory.cs

@@ -8,8 +8,10 @@
 using OpenQA.Selenium.Firefox;
 using OpenQA.Selenium.IE;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Reflection;
 using System.Threading.Tasks;
 
 namespace Lombiq.Tests.UI.Services;
@@ -55,6 +57,8 @@ Task<Func<ChromeDriver>> CreateDriverInnerAsync(string driverPath = null) =>
                 // Helps with misconfigured hosts.
                 if (chromeConfig.Service.HostName == "localhost") chromeConfig.Service.HostName = "127.0.0.1";
 
+                configuration.Arguments.SetItems(chromeConfig.Options.Arguments);
+
                 return new ChromeDriver(chromeConfig.Service, chromeConfig.Options, pageLoadTimeout)
                     .SetCommonTimeouts(pageLoadTimeout);
             });
@@ -89,6 +93,8 @@ public static Task<Func<EdgeDriver>> CreateEdgeDriverAsync(BrowserConfiguration
             var service = EdgeDriverService.CreateDefaultService();
             service.SuppressInitialDiagnosticInformation = true;
 
+            configuration.Arguments.SetItems(options.Arguments);
+
             return () => new EdgeDriver(service, options).SetCommonTimeouts(pageLoadTimeout);
         });
 
@@ -112,6 +118,11 @@ public static Task<Func<FirefoxDriver>> CreateFirefoxDriverAsync(BrowserConfigur
 
                 configuration.BrowserOptionsConfigurator?.Invoke(options);
 
+                var arguments = typeof(FirefoxOptions)
+                    .GetField("firefoxArguments", BindingFlags.Instance | BindingFlags.NonPublic)?
+                    .GetValue(options) as IList<string> ?? [];
+                configuration.Arguments.SetItems(arguments);
+
                 return new FirefoxDriver(options).SetCommonTimeouts(pageLoadTimeout);
             }));
 

Lombiq.Tests.UI/ui-testing-toolkit.mjs

@@ -1,9 +1,14 @@
 import path from 'path';
 import process from 'process';
+import fs from 'node:fs/promises';
 import { By, WebDriver, WebElement } from 'selenium-webdriver';
 import chrome from 'selenium-webdriver/chrome.js';
 import { writeFile } from 'node:fs/promises'
 
+function _exists(path) {
+    return fs.stat(path).then(() => true, () => false);
+}
+
 async function _logSource(driver) {
     const html = await driver.getPageSource();
     console.log('HTML:', html.replace(/\s*[\n\r]+\s*/g, ' '));
@@ -81,21 +86,15 @@ async function runTest(test, configureOptions = null) {
 
     if (browserName !== 'Chrome') throw new Error("Only Chrome is supported at this time");
 
-    let options = new chrome.Options()
-        .addArguments('disable-dev-shm-usage')
-        .addArguments('unsafely-disable-devtools-self-xss-warnings')
-        .addArguments('disable-search-engine-choice-screen')
-        .addArguments('--lang=en-US')
-        .addArguments('disable-accelerated-2d-canvas')
-        .addArguments('disable-gpu')
-        .addArguments('force-color-profile=sRGB')
-        .addArguments('force-device-scale-factor=1')
-        .addArguments('high-dpi-support=1')
-        .addArguments('disable-smooth-scrolling')
-        .addArguments('ignore-certificate-errors')
-        .addArguments('--ignore-certificate-errors')
-        .addArguments('--no-sandbox')
-        ;
+    let options = new chrome.Options();
+
+    const argumentsPath = path.join(tempDirectory, 'BrowserArguments.json');
+    if (await _exists(argumentsPath)) {
+        JSON.parse(await fs.readFile(argumentsPath, { encoding: 'utf8' }))
+            .forEach(argument => {
+                options = options.addArguments(argument);
+            });
+    }
 
     if (process.env.GITHUB_ENV) options = options.addArguments('headless');
     if (configureOptions) options = configureOptions(options) ?? options;