最小起订量设置中的 DateTimeOffset 抛出异常

问题描述

我有一个记录器的方法：

this.logger.LogDebug("Engine start run at: {time}",DateTimeOffset.Now);
this.logger.LogDebug("Engine stopped at: {time}",DateTimeOffset.Now);

我创建了一个带有 moq 设置的 UT 来检查这种情况：

var firstMessageStartLoggingTime = $"Engine start run at: {DateTimeOffset.Now}";
var secondMessageStoppedLoggingTime = $"Engine stopped at: {DateTimeOffset.Now}";

_mockLogger.Setup(e => e.LogDebug(firstMessageStartLoggingTime)).Verifiable(); 
_mockLogger.Setup(e => e.LogDebug(secondMessageStoppedLoggingTime)).Verifiable();

并收到此异常：

Message: 
Moq.MockException : Mock<ILoggerAdapter<Engine>:1>:
This mock Failed verification due to the following:

   ILoggerAdapter<Engine> e => e.LogDebug("Engine start run at: 6/4/2021 8:52:16 AM +03:00",[]):
   This setup was not matched.

   ILoggerAdapter<Engine> e => e.LogDebug("Engine stopped at: 6/4/2021 8:52:16 AM +03:00",[]):
   This setup was not matched.

然后我尝试通过添加 DateTimeProvider 类来更新此案例：

public class DateTimeProvider
{
    public static DateTime Today
    {
        get
        {
            if (!TodayValue.HasValue)
            {
                return DateTime.Today;
            }
            else
            {
                return TodayValue.Value;
            }
        }
    }

    public static DateTime Now
    {
        get
        {
            if (!NowValue.HasValue)
            {
                return DateTime.Now;
            }
            else
            {
                return NowValue.Value;
            }
        }
    }

    public static DateTime UtcNow
    {
        get
        {
            if (!UtcNowValue.HasValue)
            {
                return DateTime.UtcNow;
            }
            else
            {
                return UtcNowValue.Value;
            }
        }
    }

    internal static DateTime? TodayValue { get; set; }

    internal static DateTime? NowValue { get; set; }

    internal static DateTime? UtcNowValue { get; set; }

并用它更新了这个方法（方法中的代码）：

this.logger.LogDebug("Engine start run at: {time}",DateTimeOffsetProvider.Now);
this.logger.LogDebug("Engine stopped at: {time}",DateTimeOffsetProvider.Now);

并更新了 UT：

DateTime expected = DateTime.Now;
DateTimeProvider.TodayValue = expected;
var firstMessageStartLoggingTime = $"Engine start run at: {expected}";
var secondMessageStoppedLoggingTime = $"Engine stopped at: {expected}";

_mockLogger.Setup(e => e.LogDebug(firstMessageStartLoggingTime)).Verifiable(); 
_mockLogger.Setup(e => e.LogDebug(secondMessageStoppedLoggingTime)).Verifiable();

但错误仍然存​​在。 请帮助:)

解决方法

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