Question

如何为下面给出的方法为实体编写moq，特别是对于像db.Entry(driver).Property(x => x.EffectiveDate).IsModified = true;这样的属性？

public bool UpdateEffectiveDate(int driverId, DateTime effectiveDate, string UserId)
{
    db myentity = new myentity();
    Driver driver = db.Drivers.Find(driverId);
    driver.EffectiveDate = effectiveDate;
    driver.LastModifiedBy = UserId;
    driver.LastModifiedDate = DateTime.Now;
    db.Drivers.Attach(driver);
    db.Entry(driver).Property(x => x.EffectiveDate).IsModified = true;
    db.Entry(driver).Property(x => x.LastModifiedBy).IsModified = true;
    db.Entry(driver).Property(x => x.LastModifiedDate).IsModified = true;
    return (db.SaveChanges() > 0);
}

Answer 1

您需要更改方法以使用方法注入。

public bool UpdateEffectiveDate(db aEntity, int driverId, DateTime effectiveDate, string UserId)
{
    //db myentity = new myentity();
    Driver driver = aEntity.Drivers.Find(driverId);
    driver.EffectiveDate = effectiveDate;
    driver.LastModifiedBy = UserId;
    driver.LastModifiedDate = DateTime.Now;
    aEntity.Drivers.Attach(driver);
    aEntity.Entry(driver).Property(x => x.EffectiveDate).IsModified = true;
    aEntity.Entry(driver).Property(x => x.LastModifiedBy).IsModified = true;
    aEntity.Entry(driver).Property(x => x.LastModifiedDate).IsModified = true;
    return (aEntity.SaveChanges() > 0);
}

然后你就像这样设置你的测试......

  var _MockEntity = new Mock<db>();
  var _MockDrivers = new Mock<Drivers>();
  var _MockDriver = new Mock<Driver>();
  _MockEntity.Setup(x => x.Drivers()).Returns(() => _MockDrivers.Object);
  _MockDrivers.Setup(x => x.Find(123)).Returns(() => _MockDriver.Object); 
  _MockDriver.SetupProperty(x => x.EffectiveDate);
  _MockDriver.SetupProperty(x => x.LastModifiedBy);  
  _MockDriver.SetupProperty(x => x.LastModifiedDate); 

  myClass.UpdateEffectiveDate(_MockEntity.Object, 123, samedatehere,"test");
  var _Driver = _MockDriver.Object;
  var _Expected =  samedatehere;
  var _Actual =_Driver.EffectiveDate;
  Assert.Equal(_Expected, _Actual);

了解如何使用moq https://github.com/Moq/moq4/wiki/Quickstart

进行模拟所需的几乎所有内容

如何在Entity Framework中为属性创建moq

1 个答案: