public void AddMvcBinders_RegistersModelBinderProvider()
{
// Arrange
var services = new ServiceCollection();
services.AddOptions();
var builder = new OpenIddictBuilder(services);
// Act
builder.AddMvcBinders();
var provider = services.BuildServiceProvider();
var options = provider.GetRequiredService <IOptions <MvcOptions> >();
// Assert
Assert.Contains(options.Value.ModelBinderProviders, binder => binder is OpenIddictModelBinder);
}