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C# MSCRM QueryExpression在UnitTest中返回null_C#_Dynamics Crm - Fatal编程技术网

C# MSCRM QueryExpression在UnitTest中返回null

C# MSCRM QueryExpression在UnitTest中返回null,c#,dynamics-crm,C#,Dynamics Crm,我试图返回第一个在值中包含值的实体。我唯一可以测试它的方法是通过单元测试,它们每次都失败,因为它返回null。不是空的EntityCollection,而是null。我做错了什么。我就是看不见?ec=null,并在尝试获取FirstOrDefault时引发错误 QueryExpression query = new QueryExpression() { EntityName = "myentity", ColumnSet = new ColumnSet(true), C

我试图返回第一个在值中包含值的实体。我唯一可以测试它的方法是通过单元测试,它们每次都失败,因为它返回null。不是空的EntityCollection,而是null。我做错了什么。我就是看不见?ec=null,并在尝试获取FirstOrDefault时引发错误

QueryExpression query = new QueryExpression()
{
    EntityName = "myentity",
    ColumnSet = new ColumnSet(true),
    Criteria = new FilterExpression
    {
        FilterOperator = LogicalOperator.And,
        Conditions = 
        {
            new ConditionExpression("myattribute", ConditionOperator.Like, "%" +somevalue+ "%")
        }
    }
};

EntityCollection ec = service.RetrieveMultiple(query);
return ec.Entities.FirstOrDefault();

结果证明,单元测试有一个iorOrganizationService存根,该存根刚刚为方法返回null