From 62264e3ad6411c05e19715ab774f5fdd54181a1c Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 17:37:52 +0300
Subject: [PATCH 01/12] Emulation placeholder

---
 dotnet/src/webdriver/BiDi/BiDi.cs                  | 14 ++++++++++++++
 .../webdriver/BiDi/Emulation/EmulationModule.cs    |  8 ++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs

diff --git a/dotnet/src/webdriver/BiDi/BiDi.cs b/dotnet/src/webdriver/BiDi/BiDi.cs
index 0ffc7b8fdeaf2..3edb8edac2401 100644
--- a/dotnet/src/webdriver/BiDi/BiDi.cs
+++ b/dotnet/src/webdriver/BiDi/BiDi.cs
@@ -37,6 +37,7 @@ public sealed class BiDi : IAsyncDisposable
     private Log.LogModule? _logModule;
     private Storage.StorageModule? _storageModule;
     private WebExtension.WebExtensionModule? _webExtensionModule;
+    private Emulation.EmulationModule? _emulationModule;
 
     private readonly object _moduleLock = new();
 
@@ -164,6 +165,19 @@ public WebExtension.WebExtensionModule WebExtension
         }
     }
 
+    public Emulation.EmulationModule Emulation
+    {
+        get
+        {
+            if (_emulationModule is not null) return _emulationModule;
+            lock (_moduleLock)
+            {
+                _emulationModule ??= new Emulation.EmulationModule(_broker);
+            }
+            return _emulationModule;
+        }
+    }
+
     public Task<Session.StatusResult> StatusAsync()
     {
         return SessionModule.StatusAsync();
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
new file mode 100644
index 0000000000000..0add496df0791
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -0,0 +1,8 @@
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+public sealed class EmulationModule(Broker broker) : Module(broker)
+{
+
+}

From 1c957e642b8827cd9d4cce66e419739c289020dc Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 17:56:02 +0300
Subject: [PATCH 02/12] SetTimezone

---
 .../Json/BiDiJsonSerializerContext.cs         |  2 ++
 .../BiDi/Emulation/EmulationModule.cs         | 25 +++++++++++++
 .../Emulation/SetTimezoneOverrideCommand.cs   | 35 +++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    | 32 +++++++++++++++++
 4 files changed, 94 insertions(+)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
 create mode 100644 dotnet/test/common/BiDi/Emulation/EmulationTest.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index b2510f252dbc2..f0ecedfae41a3 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -173,4 +173,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(WebExtension.InstallResult))]
 [JsonSerializable(typeof(WebExtension.UninstallCommand))]
 
+[JsonSerializable(typeof(Emulation.SetTimezoneOverrideCommand))]
+
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index 0add496df0791..690623869b395 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -1,8 +1,33 @@
+// <copyright file="EmulationModule.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Threading.Tasks;
 using OpenQA.Selenium.BiDi.Communication;
 
 namespace OpenQA.Selenium.BiDi.Emulation;
 
 public sealed class EmulationModule(Broker broker) : Module(broker)
 {
+    public async Task<EmptyResult> SetTimezoneOverrideAsync(string? timezone, SetTimezoneOverrideOptions? options = null)
+    {
+        var @params = new SetTimezoneOverrideParameters(timezone, options?.Contexts, options?.UserContexts);
 
+        return await Broker.ExecuteCommandAsync<SetTimezoneOverrideCommand, EmptyResult>(new SetTimezoneOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
new file mode 100644
index 0000000000000..90f3d3172045e
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
@@ -0,0 +1,35 @@
+// <copyright file="SetTimezoneOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetTimezoneOverrideCommand(SetTimezoneOverrideParameters @params)
+    : Command<SetTimezoneOverrideParameters, EmptyResult>(@params, "emulation.setTimezoneOverride");
+
+internal sealed record SetTimezoneOverrideParameters(string? Timezone, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetTimezoneOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
new file mode 100644
index 0000000000000..495e84ad49d4f
--- /dev/null
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -0,0 +1,32 @@
+// <copyright file="EmulationTest.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using NUnit.Framework;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+class EmulationTest : BiDiTestFixture
+{
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet")]
+    public void CanSetTimezoneOverride()
+    {
+        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new () { Contexts = [context] }), Throws.Nothing);
+    }
+}

From c97e8fcdf8e8a2f7240c80ae99028968b579af4e Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 18:02:18 +0300
Subject: [PATCH 03/12] SetUserAgent

---
 .../Json/BiDiJsonSerializerContext.cs         |  2 +-
 .../BiDi/Emulation/EmulationModule.cs         |  7 ++++
 .../Emulation/SetUserAgentOverrideCommand.cs  | 35 +++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    |  7 +++-
 4 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index f0ecedfae41a3..db0fd712c3171 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -172,7 +172,7 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(WebExtension.InstallCommand))]
 [JsonSerializable(typeof(WebExtension.InstallResult))]
 [JsonSerializable(typeof(WebExtension.UninstallCommand))]
-
 [JsonSerializable(typeof(Emulation.SetTimezoneOverrideCommand))]
+[JsonSerializable(typeof(Emulation.SetUserAgentOverrideCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index 690623869b395..ddc6266e00174 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -30,4 +30,11 @@ public async Task<EmptyResult> SetTimezoneOverrideAsync(string? timezone, SetTim
 
         return await Broker.ExecuteCommandAsync<SetTimezoneOverrideCommand, EmptyResult>(new SetTimezoneOverrideCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetUserAgentOverrideAsync(string? userAgent, SetUserAgentOverrideOptions? options = null)
+    {
+        var @params = new SetUserAgentOverrideParameters(userAgent, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetUserAgentOverrideCommand, EmptyResult>(new SetUserAgentOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs
new file mode 100644
index 0000000000000..b8f90367fd89e
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs
@@ -0,0 +1,35 @@
+// <copyright file="SetUserAgentOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetUserAgentOverrideCommand(SetUserAgentOverrideParameters @params)
+    : Command<SetUserAgentOverrideParameters, EmptyResult>(@params, "emulation.setUserAgentOverride");
+
+internal sealed record SetUserAgentOverrideParameters(string? UserAgent, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetUserAgentOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index 495e84ad49d4f..30804a64f3393 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -24,9 +24,14 @@ namespace OpenQA.Selenium.BiDi.Emulation;
 class EmulationTest : BiDiTestFixture
 {
     [Test]
-    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet")]
     public void CanSetTimezoneOverride()
     {
         Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new () { Contexts = [context] }), Throws.Nothing);
     }
+
+    [Test]
+    public void CanSetUserAgentOverride()
+    {
+        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new () { Contexts = [context] }), Throws.Nothing);
+    }
 }

From de30f4b08c168af8dda91b96b39fb64e15b595e5 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 18:11:16 +0300
Subject: [PATCH 04/12] SetLocale

---
 .../Json/BiDiJsonSerializerContext.cs         |  1 +
 .../BiDi/Emulation/EmulationModule.cs         |  7 ++++
 .../Emulation/SetLocaleOverrideCommand.cs     | 36 +++++++++++++++++++
 .../Emulation/SetTimezoneOverrideCommand.cs   |  5 +--
 .../Emulation/SetUserAgentOverrideCommand.cs  |  5 +--
 .../common/BiDi/Emulation/EmulationTest.cs    |  9 +++++
 6 files changed, 59 insertions(+), 4 deletions(-)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetLocaleOverrideCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index db0fd712c3171..c0ba27623b7bb 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -174,5 +174,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(WebExtension.UninstallCommand))]
 [JsonSerializable(typeof(Emulation.SetTimezoneOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetUserAgentOverrideCommand))]
+[JsonSerializable(typeof(Emulation.SetLocaleOverrideCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index ddc6266e00174..dccf4373db0f8 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -37,4 +37,11 @@ public async Task<EmptyResult> SetUserAgentOverrideAsync(string? userAgent, SetU
 
         return await Broker.ExecuteCommandAsync<SetUserAgentOverrideCommand, EmptyResult>(new SetUserAgentOverrideCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetLocaleOverrideAsync(string? locale, SetLocaleOverrideOptions? options = null)
+    {
+        var @params = new SetLocaleOverrideParameters(locale, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetLocaleOverrideCommand, EmptyResult>(new SetLocaleOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetLocaleOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetLocaleOverrideCommand.cs
new file mode 100644
index 0000000000000..900178c9090e1
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetLocaleOverrideCommand.cs
@@ -0,0 +1,36 @@
+// <copyright file="SetLocaleOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetLocaleOverrideCommand(SetLocaleOverrideParameters @params)
+    : Command<SetLocaleOverrideParameters, EmptyResult>(@params, "emulation.setLocaleOverride");
+
+internal sealed record SetLocaleOverrideParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] string? Locale, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetLocaleOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
index 90f3d3172045e..a3c24c25ff530 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetTimezoneOverrideCommand.cs
@@ -17,15 +17,16 @@
 // under the License.
 // </copyright>
 
-using System.Collections.Generic;
 using OpenQA.Selenium.BiDi.Communication;
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
 
 namespace OpenQA.Selenium.BiDi.Emulation;
 
 internal sealed class SetTimezoneOverrideCommand(SetTimezoneOverrideParameters @params)
     : Command<SetTimezoneOverrideParameters, EmptyResult>(@params, "emulation.setTimezoneOverride");
 
-internal sealed record SetTimezoneOverrideParameters(string? Timezone, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+internal sealed record SetTimezoneOverrideParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] string? Timezone, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
 
 public sealed class SetTimezoneOverrideOptions : CommandOptions
 {
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs
index b8f90367fd89e..69467d6d5f9db 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetUserAgentOverrideCommand.cs
@@ -17,15 +17,16 @@
 // under the License.
 // </copyright>
 
-using System.Collections.Generic;
 using OpenQA.Selenium.BiDi.Communication;
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
 
 namespace OpenQA.Selenium.BiDi.Emulation;
 
 internal sealed class SetUserAgentOverrideCommand(SetUserAgentOverrideParameters @params)
     : Command<SetUserAgentOverrideParameters, EmptyResult>(@params, "emulation.setUserAgentOverride");
 
-internal sealed record SetUserAgentOverrideParameters(string? UserAgent, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+internal sealed record SetUserAgentOverrideParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] string? UserAgent, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
 
 public sealed class SetUserAgentOverrideOptions : CommandOptions
 {
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index 30804a64f3393..02eac3290006f 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -27,11 +27,20 @@ class EmulationTest : BiDiTestFixture
     public void CanSetTimezoneOverride()
     {
         Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetUserAgentOverride()
     {
         Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+    }
+
+    [Test]
+    public void CanSetLocaleOverride()
+    {
+        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
     }
 }

From 1af3dcb2a525cd928f359b46bba8d5ac3af4e734 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 18:24:13 +0300
Subject: [PATCH 05/12] SetForcedColorsModeTheme

---
 .../Json/BiDiJsonSerializerContext.cs         |  1 +
 .../BiDi/Emulation/EmulationModule.cs         |  9 +++-
 ...SetForcedColorsModeThemeOverrideCommand.cs | 42 +++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    |  7 ++++
 4 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetForcedColorsModeThemeOverrideCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index c0ba27623b7bb..564bccb5119f9 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -175,5 +175,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(Emulation.SetTimezoneOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetUserAgentOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetLocaleOverrideCommand))]
+[JsonSerializable(typeof(Emulation.SetForcedColorsModeThemeOverrideCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index dccf4373db0f8..e15879fc16ee8 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -9,7 +9,7 @@
 //
 //   http://www.apache.org/licenses/LICENSE-2.0
 //
-// Unless required by applicable law or agreed to in writing,
+// Unless required by applicable law or agreed in writing,
 // software distributed under the License is distributed on an
 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 // KIND, either express or implied.  See the License for the
@@ -44,4 +44,11 @@ public async Task<EmptyResult> SetLocaleOverrideAsync(string? locale, SetLocaleO
 
         return await Broker.ExecuteCommandAsync<SetLocaleOverrideCommand, EmptyResult>(new SetLocaleOverrideCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme? theme, SetForcedColorsModeThemeOverrideOptions? options = null)
+    {
+        var @params = new SetForcedColorsModeThemeOverrideParameters(theme, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetForcedColorsModeThemeOverrideCommand, EmptyResult>(new SetForcedColorsModeThemeOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetForcedColorsModeThemeOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetForcedColorsModeThemeOverrideCommand.cs
new file mode 100644
index 0000000000000..eceb0920a0d98
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetForcedColorsModeThemeOverrideCommand.cs
@@ -0,0 +1,42 @@
+// <copyright file="SetForcedColorsModeThemeOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetForcedColorsModeThemeOverrideCommand(SetForcedColorsModeThemeOverrideParameters @params)
+    : Command<SetForcedColorsModeThemeOverrideParameters, EmptyResult>(@params, "emulation.setForcedColorsModeThemeOverride");
+
+internal sealed record SetForcedColorsModeThemeOverrideParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] ForcedColorsModeTheme? Theme, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetForcedColorsModeThemeOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
+
+public enum ForcedColorsModeTheme
+{
+    Light,
+    Dark
+}
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index 02eac3290006f..53e9c4121e9d7 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -43,4 +43,11 @@ public void CanSetLocaleOverride()
         Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new () { Contexts = [context] }), Throws.Nothing);
         Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
     }
+
+    [Test]
+    public void CanSetForcedColorsModeThemeOverride()
+    {
+        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+    }
 }

From a470cbc2c3fd58ef3e6605a9988a6cf86f33e1f2 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 18:28:11 +0300
Subject: [PATCH 06/12] SetScriptingEnabled

---
 .../Json/BiDiJsonSerializerContext.cs         |  1 +
 .../BiDi/Emulation/EmulationModule.cs         |  7 ++++
 .../Emulation/SetScriptingEnabledCommand.cs   | 36 +++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    |  7 ++++
 4 files changed, 51 insertions(+)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetScriptingEnabledCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index 564bccb5119f9..ba56ec8539837 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -176,5 +176,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(Emulation.SetUserAgentOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetLocaleOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetForcedColorsModeThemeOverrideCommand))]
+[JsonSerializable(typeof(Emulation.SetScriptingEnabledCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index e15879fc16ee8..ef472ad6210c3 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -51,4 +51,11 @@ public async Task<EmptyResult> SetForcedColorsModeThemeOverrideAsync(ForcedColor
 
         return await Broker.ExecuteCommandAsync<SetForcedColorsModeThemeOverrideCommand, EmptyResult>(new SetForcedColorsModeThemeOverrideCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetScriptingEnabledAsync(bool? enabled, SetScriptingEnabledOptions? options = null)
+    {
+        var @params = new SetScriptingEnabledParameters(enabled, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetScriptingEnabledCommand, EmptyResult>(new SetScriptingEnabledCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetScriptingEnabledCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetScriptingEnabledCommand.cs
new file mode 100644
index 0000000000000..d19a9dfa4bf90
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetScriptingEnabledCommand.cs
@@ -0,0 +1,36 @@
+// <copyright file="SetScriptingEnabledCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetScriptingEnabledCommand(SetScriptingEnabledParameters @params)
+    : Command<SetScriptingEnabledParameters, EmptyResult>(@params, "emulation.setScriptingEnabled");
+
+internal sealed record SetScriptingEnabledParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] bool? Enabled, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetScriptingEnabledOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index 53e9c4121e9d7..b656bb1362061 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -50,4 +50,11 @@ public void CanSetForcedColorsModeThemeOverride()
         Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new () { Contexts = [context] }), Throws.Nothing);
         Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
     }
+
+    [Test]
+    public void CanSetScriptingEnabled()
+    {
+        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+    }
 }

From c81121271f127e9579b3aa727e082f4a05d83841 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 18:41:12 +0300
Subject: [PATCH 07/12] SetScreenOrientation

---
 .../webdriver/BiDi/Communication/Broker.cs    |  1 +
 .../Json/BiDiJsonSerializerContext.cs         |  1 +
 .../ScreenOrientationTypeConverter.cs         | 55 +++++++++++++++++++
 .../BiDi/Emulation/EmulationModule.cs         |  7 +++
 .../SetScreenOrientationOverrideCommand.cs    | 52 ++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    |  8 +++
 6 files changed, 124 insertions(+)
 create mode 100644 dotnet/src/webdriver/BiDi/Communication/Json/Converters/ScreenOrientationTypeConverter.cs
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetScreenOrientationOverrideCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Broker.cs b/dotnet/src/webdriver/BiDi/Communication/Broker.cs
index 77b592968b850..4292af05177d6 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Broker.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Broker.cs
@@ -84,6 +84,7 @@ internal Broker(BiDi bidi, Uri url)
                 new PreloadScriptConverter(_bidi),
                 new RealmConverter(_bidi),
                 new RealmTypeConverter(),
+                new ScreenOrientationTypeConverter(),
                 new DateTimeOffsetConverter(),
                 new PrintPageRangeConverter(),
                 new InputOriginConverter(),
diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index ba56ec8539837..114869d9858bb 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -177,5 +177,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(Emulation.SetLocaleOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetForcedColorsModeThemeOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetScriptingEnabledCommand))]
+[JsonSerializable(typeof(Emulation.SetScreenOrientationOverrideCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/Converters/ScreenOrientationTypeConverter.cs b/dotnet/src/webdriver/BiDi/Communication/Json/Converters/ScreenOrientationTypeConverter.cs
new file mode 100644
index 0000000000000..6027288f60278
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/Converters/ScreenOrientationTypeConverter.cs
@@ -0,0 +1,55 @@
+// <copyright file="ScreenOrientationTypeConverter.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Emulation;
+
+namespace OpenQA.Selenium.BiDi.Communication.Json.Converters;
+
+internal class ScreenOrientationTypeConverter : JsonConverter<ScreenOrientationType>
+{
+    public override ScreenOrientationType Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        var str = reader.GetString();
+        return str switch
+        {
+            "portrait-primary" => ScreenOrientationType.PortraitPrimary,
+            "portrait-secondary" => ScreenOrientationType.PortraitSecondary,
+            "landscape-primary" => ScreenOrientationType.LandscapePrimary,
+            "landscape-secondary" => ScreenOrientationType.LandscapeSecondary,
+            _ => throw new JsonException($"Unrecognized '{str}' value of {typeof(ScreenOrientationType)}."),
+        };
+    }
+
+    public override void Write(Utf8JsonWriter writer, ScreenOrientationType value, JsonSerializerOptions options)
+    {
+        var str = value switch
+        {
+            ScreenOrientationType.PortraitPrimary => "portrait-primary",
+            ScreenOrientationType.PortraitSecondary => "portrait-secondary",
+            ScreenOrientationType.LandscapePrimary => "landscape-primary",
+            ScreenOrientationType.LandscapeSecondary => "landscape-secondary",
+            _ => throw new JsonException($"Unrecognized '{value}' value of {typeof(ScreenOrientationType)}."),
+        };
+
+        writer.WriteStringValue(str);
+    }
+}
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index ef472ad6210c3..acf750cddbf45 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -58,4 +58,11 @@ public async Task<EmptyResult> SetScriptingEnabledAsync(bool? enabled, SetScript
 
         return await Broker.ExecuteCommandAsync<SetScriptingEnabledCommand, EmptyResult>(new SetScriptingEnabledCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetScreenOrientationOverrideAsync(ScreenOrientation? screenOrientation, SetScreenOrientationOverrideOptions? options = null)
+    {
+        var @params = new SetScreenOrientationOverrideParameters(screenOrientation, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetScreenOrientationOverrideCommand, EmptyResult>(new SetScreenOrientationOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetScreenOrientationOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetScreenOrientationOverrideCommand.cs
new file mode 100644
index 0000000000000..3e638d8ebb61b
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetScreenOrientationOverrideCommand.cs
@@ -0,0 +1,52 @@
+// <copyright file="SetScreenOrientationOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetScreenOrientationOverrideCommand(SetScreenOrientationOverrideParameters @params)
+    : Command<SetScreenOrientationOverrideParameters, EmptyResult>(@params, "emulation.setScreenOrientationOverride");
+
+internal sealed record SetScreenOrientationOverrideParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] ScreenOrientation? ScreenOrientation, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetScreenOrientationOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
+
+public enum ScreenOrientationNatural
+{
+    Portrait,
+    Landscape
+}
+
+public enum ScreenOrientationType
+{
+    PortraitPrimary,
+    PortraitSecondary,
+    LandscapePrimary,
+    LandscapeSecondary
+}
+
+public sealed record ScreenOrientation(ScreenOrientationNatural Natural, ScreenOrientationType Type);
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index b656bb1362061..e86709958375f 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -57,4 +57,12 @@ public void CanSetScriptingEnabled()
         Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new () { Contexts = [context] }), Throws.Nothing);
         Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new () { Contexts = [context] }), Throws.Nothing);
     }
+
+    [Test]
+    public void CanSetScreenOrientationOverride()
+    {
+        var orientation = new ScreenOrientation(ScreenOrientationNatural.Portrait, ScreenOrientationType.PortraitPrimary);
+        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+    }
 }

From 1e75ae9c9d8a38fdc81343c0496953ae4eea6167 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 19:54:10 +0300
Subject: [PATCH 08/12] SetGeolocation

---
 .../Json/BiDiJsonSerializerContext.cs         |  1 +
 .../BiDi/Emulation/EmulationModule.cs         | 24 ++++++++
 .../SetGeolocationOverrideCommand.cs          | 61 +++++++++++++++++++
 .../common/BiDi/Emulation/EmulationTest.cs    | 32 ++++++----
 4 files changed, 106 insertions(+), 12 deletions(-)
 create mode 100644 dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs

diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index 114869d9858bb..4a74468315f4c 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -178,5 +178,6 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(Emulation.SetForcedColorsModeThemeOverrideCommand))]
 [JsonSerializable(typeof(Emulation.SetScriptingEnabledCommand))]
 [JsonSerializable(typeof(Emulation.SetScreenOrientationOverrideCommand))]
+[JsonSerializable(typeof(Emulation.SetGeolocationOverrideCommand))]
 
 internal partial class BiDiJsonSerializerContext : JsonSerializerContext;
diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index acf750cddbf45..c06dc4604afd5 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -17,6 +17,7 @@
 // under the License.
 // </copyright>
 
+using System;
 using System.Threading.Tasks;
 using OpenQA.Selenium.BiDi.Communication;
 
@@ -65,4 +66,27 @@ public async Task<EmptyResult> SetScreenOrientationOverrideAsync(ScreenOrientati
 
         return await Broker.ExecuteCommandAsync<SetScreenOrientationOverrideCommand, EmptyResult>(new SetScreenOrientationOverrideCommand(@params), options).ConfigureAwait(false);
     }
+
+    public async Task<EmptyResult> SetGeolocationCoordinatesOverrideAsync(double latitude, double longitude, SetGeolocationCoordinatesOverrideOptions? options = null)
+    {
+        var coordinates = new GeolocationCoordinates(latitude, longitude, options?.Accuracy, options?.Altitude, options?.AltitudeAccuracy, options?.Heading, options?.Speed);
+
+        var @params = new SetGeolocationOverrideCoordinatesParameters(coordinates, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetGeolocationOverrideCommand, EmptyResult>(new SetGeolocationOverrideCommand(@params), options).ConfigureAwait(false);
+    }
+
+    public async Task<EmptyResult> SetGeolocationCoordinatesOverrideAsync(SetGeolocationOverrideOptions? options = null)
+    {
+        var @params = new SetGeolocationOverrideCoordinatesParameters(null, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetGeolocationOverrideCommand, EmptyResult>(new SetGeolocationOverrideCommand(@params), options).ConfigureAwait(false);
+    }
+
+    public async Task<EmptyResult> SetGeolocationPositionErrorOverrideAsync(SetGeolocationPositionErrorOverrideOptions? options = null)
+    {
+        var @params = new SetGeolocationOverridePositionErrorParameters(new GeolocationPositionError(), options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetGeolocationOverrideCommand, EmptyResult>(new SetGeolocationOverrideCommand(@params), options).ConfigureAwait(false);
+    }
 }
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs
new file mode 100644
index 0000000000000..7db5406bb2fbc
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs
@@ -0,0 +1,61 @@
+// <copyright file="SetGeolocationOverrideCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Emulation;
+
+internal sealed class SetGeolocationOverrideCommand(SetGeolocationOverrideParameters @params)
+    : Command<SetGeolocationOverrideParameters, EmptyResult>(@params, "emulation.setGeolocationOverride");
+
+[JsonDerivedType(typeof(SetGeolocationOverrideCoordinatesParameters))]
+[JsonDerivedType(typeof(SetGeolocationOverridePositionErrorParameters))]
+internal abstract record SetGeolocationOverrideParameters(IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+internal sealed record SetGeolocationOverrideCoordinatesParameters([property: JsonIgnore(Condition = JsonIgnoreCondition.Never)] GeolocationCoordinates? Coordinates, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : SetGeolocationOverrideParameters(Contexts, UserContexts);
+
+internal sealed record SetGeolocationOverridePositionErrorParameters(GeolocationPositionError Error, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : SetGeolocationOverrideParameters(Contexts, UserContexts);
+
+internal sealed record GeolocationCoordinates(double Latitude, double Longitude, double? Accuracy, double? Altitude, double? AltitudeAccuracy, double? Heading, double? Speed);
+
+internal sealed record GeolocationPositionError
+{
+    [JsonInclude]
+    internal string Type { get; } = "positionUnavailable";
+}
+
+public class SetGeolocationOverrideOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
+
+public sealed class SetGeolocationCoordinatesOverrideOptions : SetGeolocationOverrideOptions
+{
+    public double? Accuracy { get; set; }
+    public double? Altitude { get; set; }
+    public double? AltitudeAccuracy { get; set; }
+    public double? Heading { get; set; }
+    public double? Speed { get; set; }
+}
+
+public sealed class SetGeolocationPositionErrorOverrideOptions : SetGeolocationOverrideOptions;
diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index e86709958375f..ddb37eb6474b2 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -26,43 +26,51 @@ class EmulationTest : BiDiTestFixture
     [Test]
     public void CanSetTimezoneOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetUserAgentOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetLocaleOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetForcedColorsModeThemeOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetScriptingEnabled()
     {
-        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new() { Contexts = [context] }), Throws.Nothing);
     }
 
     [Test]
     public void CanSetScreenOrientationOverride()
     {
         var orientation = new ScreenOrientation(ScreenOrientationNatural.Portrait, ScreenOrientationType.PortraitPrimary);
-        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new () { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new () { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+    }
+
+    [Test]
+    public void CanSetGeolocationOverride()
+    {
+        Assert.That(async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(0, 0, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(async () => await bidi.Emulation.SetGeolocationPositionErrorOverrideAsync(new() { Contexts = [context] }), Throws.Nothing);
     }
 }

From 4f253fa92b884ba191141c729bb4e5c0237b6e7e Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 20:22:38 +0300
Subject: [PATCH 09/12] Fix format

---
 dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs          | 2 +-
 .../webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
index c06dc4604afd5..69e48d464085d 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/EmulationModule.cs
@@ -9,7 +9,7 @@
 //
 //   http://www.apache.org/licenses/LICENSE-2.0
 //
-// Unless required by applicable law or agreed in writing,
+// Unless required by applicable law or agreed to in writing,
 // software distributed under the License is distributed on an
 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 // KIND, either express or implied.  See the License for the
diff --git a/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs b/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs
index 7db5406bb2fbc..00ff55da79319 100644
--- a/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs
+++ b/dotnet/src/webdriver/BiDi/Emulation/SetGeolocationOverrideCommand.cs
@@ -9,7 +9,7 @@
 //
 //   http://www.apache.org/licenses/LICENSE-2.0
 //
-// Unless required by applicable law or agreed in writing,
+// Unless required by applicable law or agreed to in writing,
 // software distributed under the License is distributed on an
 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 // KIND, either express or implied.  See the License for the

From 0d810ced9f1041f8e8a1aa5521d5a398a5d99a4e Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 21:49:08 +0300
Subject: [PATCH 10/12] Ignoring not supported browsers

---
 .../common/BiDi/Emulation/EmulationTest.cs    | 124 +++++++++++++++---
 1 file changed, 108 insertions(+), 16 deletions(-)

diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index ddb37eb6474b2..f1e980daf3654 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -24,53 +24,145 @@ namespace OpenQA.Selenium.BiDi.Emulation;
 class EmulationTest : BiDiTestFixture
 {
     [Test]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetTimezoneOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public void CanSetTimezoneOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetUserAgentOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public void CanSetUserAgentOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
     public void CanSetLocaleOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
+    public void CanSetLocaleOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetForcedColorsModeThemeOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public void CanSetForcedColorsModeThemeOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScriptingEnabled()
     {
-        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public void CanSetScriptingEnabledToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScreenOrientationOverride()
     {
         var orientation = new ScreenOrientation(ScreenOrientationNatural.Portrait, ScreenOrientationType.PortraitPrimary);
-        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new() { Contexts = [context] }), Throws.Nothing);
+
+        Assert.That(
+            async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public void CanSetScreenOrientationOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    public void CanSetGeolocationCoordinatesOverride()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(0, 0, new() { Contexts = [context] }),
+            Throws.Nothing);
+    }
+
+    [Test]
+    public void CanSetGeolocationCoordinatesOverrideToDefault()
+    {
+        Assert.That(
+            async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 
     [Test]
-    public void CanSetGeolocationOverride()
+    [IgnoreBrowser(Selenium.Browser.Firefox, "invalid argument: Expected \"coordinates\" to be an object, got [object Undefined] undefined")]
+    public void CanSetGeolocationPositionErrorOverride()
     {
-        Assert.That(async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(0, 0, new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(new() { Contexts = [context] }), Throws.Nothing);
-        Assert.That(async () => await bidi.Emulation.SetGeolocationPositionErrorOverrideAsync(new() { Contexts = [context] }), Throws.Nothing);
+        Assert.That(
+            async () => await bidi.Emulation.SetGeolocationPositionErrorOverrideAsync(new() { Contexts = [context] }),
+            Throws.Nothing);
     }
 }

From cd15fa1d32720daacedb9c34a08f5742a62ab877 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 21:52:19 +0300
Subject: [PATCH 11/12] Stylish

---
 .../common/BiDi/Emulation/EmulationTest.cs    | 120 +++++++++++-------
 1 file changed, 75 insertions(+), 45 deletions(-)

diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index f1e980daf3654..a094de8e6ff7b 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -27,18 +27,22 @@ class EmulationTest : BiDiTestFixture
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetTimezoneOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetTimezoneOverrideAsync("UTC", new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetTimezoneOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetTimezoneOverrideAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetTimezoneOverrideAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -47,9 +51,11 @@ public void CanSetTimezoneOverrideToDefault()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetUserAgentOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetUserAgentOverrideAsync("MyUserAgent/1.0", new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -58,25 +64,31 @@ public void CanSetUserAgentOverride()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetUserAgentOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetUserAgentOverrideAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetUserAgentOverrideAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     public void CanSetLocaleOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetLocaleOverrideAsync("en-US", new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetLocaleOverrideAsync("en-US", new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     public void CanSetLocaleOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetLocaleOverrideAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetLocaleOverrideAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -85,9 +97,11 @@ public void CanSetLocaleOverrideToDefault()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetForcedColorsModeThemeOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(ForcedColorsModeTheme.Light, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -96,9 +110,11 @@ public void CanSetForcedColorsModeThemeOverride()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetForcedColorsModeThemeOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetForcedColorsModeThemeOverrideAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -106,9 +122,11 @@ public void CanSetForcedColorsModeThemeOverrideToDefault()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScriptingEnabled()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetScriptingEnabledAsync(false, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetScriptingEnabledAsync(false, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -116,9 +134,11 @@ public void CanSetScriptingEnabled()
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScriptingEnabledToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetScriptingEnabledAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetScriptingEnabledAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
@@ -127,42 +147,52 @@ public void CanSetScreenOrientationOverride()
     {
         var orientation = new ScreenOrientation(ScreenOrientationNatural.Portrait, ScreenOrientationType.PortraitPrimary);
 
-        Assert.That(
-            async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetScreenOrientationOverrideAsync(orientation, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScreenOrientationOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetScreenOrientationOverrideAsync(null, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     public void CanSetGeolocationCoordinatesOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(0, 0, new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(0, 0, new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     public void CanSetGeolocationCoordinatesOverrideToDefault()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetGeolocationCoordinatesOverrideAsync(new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 
     [Test]
     [IgnoreBrowser(Selenium.Browser.Firefox, "invalid argument: Expected \"coordinates\" to be an object, got [object Undefined] undefined")]
     public void CanSetGeolocationPositionErrorOverride()
     {
-        Assert.That(
-            async () => await bidi.Emulation.SetGeolocationPositionErrorOverrideAsync(new() { Contexts = [context] }),
-            Throws.Nothing);
+        Assert.That(async () =>
+        {
+            await bidi.Emulation.SetGeolocationPositionErrorOverrideAsync(new() { Contexts = [context] });
+        },
+        Throws.Nothing);
     }
 }

From d7a7b50bb28cb2bd615d797d6e22b98a0da15ba7 Mon Sep 17 00:00:00 2001
From: Nikolay Borisenko <22616990+nvborisenko@users.noreply.github.com>
Date: Sat, 4 Oct 2025 22:02:36 +0300
Subject: [PATCH 12/12] Ignore CanSetScriptingEnabled for Edge

---
 dotnet/test/common/BiDi/Emulation/EmulationTest.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
index a094de8e6ff7b..03d42b5822d4a 100644
--- a/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
+++ b/dotnet/test/common/BiDi/Emulation/EmulationTest.cs
@@ -119,6 +119,7 @@ public void CanSetForcedColorsModeThemeOverrideToDefault()
 
     [Test]
     [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScriptingEnabled()
     {
@@ -131,6 +132,7 @@ public void CanSetScriptingEnabled()
 
     [Test]
     [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
     [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
     public void CanSetScriptingEnabledToDefault()
     {