# ITestRunSettings `ITestRunSettings` lets you set any of the global settings right before building a Player for a test run and then reverts the settings afterward. `ITestRunSettings` implements [IDisposable](https://docs.microsoft.com/en-us/dotnet/api/system.idisposable), and runs after building the Player with tests. ## Public methods | Syntax | Description | | ---------------- | ------------------------------------------------------------ | | `void Apply()` | A method called before building the Player. | | `void Dispose()` | A method called after building the Player or if the build failed. | ## Example The following example sets the iOS SDK version to be the simulator SDK and resets it to the original value after the run. ``` C# public class MyTestSettings : ITestRunSettings { private iOSSdkVersion originalSdkVersion; public void Apply() { originalSdkVersion = PlayerSettings.iOS.sdkVersion; PlayerSettings.iOS.sdkVersion = iOSSdkVersion.SimulatorSDK; } public void Dispose() { PlayerSettings.iOS.sdkVersion = originalSdkVersion; } } ```