feat: add --no-incognito option to disable incognito mode in browser execution

Author: thomasduft

docs/changelogs/a088fcfbb0ee48b78ba70351c5cb08be.cle

@@ -0,0 +1,9 @@
+{
+  "Id": "a088fcfb-b0ee-48b7-8ba7-0351c5cb08be",
+  "IssueId": "",
+  "Prefix": "Added",
+  "Tag": "",
+  "Message": "Added --no-incognito option to disable incognito mode in browser execution",
+  "CreatedAt": "2025-08-11T18:08:50.077361+00:00",
+  "CreatedBy": "thomasduft"
+}

src/testr.Cli/Commands/RunCommand.cs

@@ -20,6 +20,7 @@ private static readonly Gauge<int> TestCaseGauge
   private readonly CommandOption<string> _outputDirectory;
   private readonly CommandOption<bool> _headless;
   private readonly CommandOption<bool> _continueOnFailure;
+  private readonly CommandOption<bool> _noIncognito;
   private readonly CommandOption<int> _slow;
   private readonly CommandOption<int> _timeout;
   private readonly CommandOption<BrowserType> _browserType;
@@ -77,6 +78,14 @@ public RunCommand()
       true
     );
 
+    _noIncognito = Option<bool>(
+      "--no-incognito",
+      "Disables incognito mode for the browser.",
+      CommandOptionType.NoValue,
+      cfg => cfg.DefaultValue = false,
+      true
+    );
+
     _slow = Option<int>(
       "-s|--slow",
       "Slows down the execution by the specified amount of milliseconds.",
@@ -275,7 +284,8 @@ private ExecutorConfig GetExecutorConfiguration()
       _slow.ParsedValue,
       _timeout.ParsedValue,
       _browserType.ParsedValue,
-      _recordVideoDir.ParsedValue
+      _recordVideoDir.ParsedValue,
+      _noIncognito.ParsedValue
     );
   }
 }

src/testr.Cli/Domain/ExecutorConfig.cs

@@ -5,5 +5,6 @@ public record ExecutorConfig(
   int Slow = 500,
   int Timeout = 30000,
   BrowserType BrowserType = BrowserType.Chrome,
-  string? RecordVideoDir = null
-);
+  string? RecordVideoDir = null,
+  bool NoIncognito = false
+);

src/testr.Cli/Domain/TestCaseExecutor.cs

@@ -23,14 +23,49 @@ CancellationToken cancellationToken
   )
   {
     using var playwright = await Playwright.CreateAsync();
-    await using var browser = await GetBrowserType(playwright)
-      .LaunchAsync(new BrowserTypeLaunchOptions
-      {
-        Headless = _config.Headless,
-        SlowMo = _config.Slow // by N milliseconds per operation,
-      });
 
-    var context = await GetBrowserContext(browser);
+    var browserType = GetBrowserType(playwright);
+    if (_config.NoIncognito)
+    {
+      await using var browserContext = await browserType.LaunchPersistentContextAsync(
+        string.Empty,
+        new BrowserTypeLaunchPersistentContextOptions
+        {
+          Headless = _config.Headless,
+          SlowMo = _config.Slow
+        });
+
+      return await RunBrowserAsync(
+        domain,
+        executionParam,
+        preconditionExecutionParam,
+        browserContext
+      );
+    }
+
+    await using var incognitoBrowser = await browserType.LaunchAsync(new BrowserTypeLaunchOptions
+    {
+      Headless = _config.Headless,
+      SlowMo = _config.Slow
+    });
+
+    var incognitoContext = await GetBrowserContext(incognitoBrowser);
+
+    return await RunBrowserAsync(
+      domain,
+      executionParam,
+      preconditionExecutionParam,
+      incognitoContext
+    );
+  }
+
+  private async Task<IEnumerable<TestStepResult>> RunBrowserAsync(
+    string domain,
+    TestCaseExecutionParam executionParam,
+    TestCaseExecutionParam? preconditionExecutionParam,
+    IBrowserContext context
+  )
+  {
     var page = await context.NewPageAsync();
 
     // execute precondition instructions if available