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我想爲我的DAL層寫單元測試。如何使用Moq與實體框架包括()
複雜的是,DAL層有一個使用Include()的查詢。
我不知道如何模擬Include()方法。
模式
public class Apps
{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
[DataMember]
public int ID { get; set; }
[DataMember]
[Required(ErrorMessage = "App name required.")]
public string Name { get; set; }
public virtual ICollection<AppDataPermission> AppDataPermissions { get; set; }
}
public class AppDataPermission{
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
[DataMember]
public int ID { get; set; }
public DataPermissions DataPermission { get; set; }
public virtual Apps App { get; set; }
}
public enum DataPermissions
{
Admin = 1,
Support = 2
}
DAL
public List<Apps> GetApps()
{
var apps = dbContext.Apps
.Include(x => x.AppDataPermission)
.ToList();
return apps;
}
我嘗試以下[https://msdn.microsoft.com/en-us/library/dn314429(v=vs.113).aspx][1]
,但我得到以下錯誤
System.ArgumentNullException occurred
HResult=0x80004003
Message=Value cannot be null.
Parameter name: source
Source=EntityFramework
StackTrace:
at System.Data.Entity.Utilities.Check.NotNull[T](T value, String parameterName)
at System.Data.Entity.QueryableExtensions.Include[T,TProperty](IQueryable`1 source, Expression`1 path)