使用Autofixture测试控制器,该Autofixture将IOptions<T>作为构造函数参数

控制器类:

private readonly DbSettings _docDbSettings;

public CoursesController(IOptions<DbSettings> docDbSettings)
{
    if (docDbSettings == null) throw new ArgumentNullException(nameof(docDbSettings));
    _docDbSettings = docDbSettings.Value;
}

控制器测试类:

public class CoursesControllerTests
{
    private readonly IFixture _fixture;
    private readonly CoursesController _coursesController;
    private readonly DbSettings _docDbSettings;

    public CoursesControllerTests()
    {
        _fixture = new Fixture().Customize(new AutoFakeItEasyCustomization());

        // Need help here.
        _docDbSettings = _fixture.Create<IOptions<DbSettings>>();       
    }
}

错误:

Cannot implicitly convert type 'Microsoft.Extensions.Options.IOptions<Infrastructure.DbSettings>' to 'Infrastructure.DbSettings'

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提前谢谢。