在测试期间覆盖DateTime.Now的好方法是什么？

public interface IDateTimeProvider
{
    DateTime Now { get; }
}

public class SystemDateTimeProvider : IDateTimeProvider
{
    public DateTime Now => DateTime.Now;
}

public class MyClass
{
    private readonly IDateTimeProvider _dateTimeProvider;

    public MyClass(IDateTimeProvider dateTimeProvider)
    {
        _dateTimeProvider = dateTimeProvider;
    }

    public void DoSomething()
    {
        var now = _dateTimeProvider.Now;
        // 使用now进行操作
    }
}

var mockDateTimeProvider = new Mock<IDateTimeProvider>();
mockDateTimeProvider.Setup(x => x.Now).Returns(new DateTime(2022, 1, 1));

var myClass = new MyClass(mockDateTimeProvider.Object);

myClass.DoSomething();