Model-engineering implementation and expansion (Design Mode C #) re-study C # language-self-test reference answer: dependency Injection

Transferred from: Model-engineering implementation and expansion (Design Mode C)

Http://www.cnblogs.com/callwangxiang/

1,The target type is defined as follows, which depends onIfirstAndIsecondTwo interfaces, known to implementIfirstThe interface types are:First1,First2AndFirst3, ImplementedIsecondType:Second1AndSecond2. Use the set value injection method to complete the injection and verify the injection results.

 

Interface Ifirst {}
Interface Isecond {}

class Target
{< br> Public Ifirst first { Get ; set ;}
Public isecond second { Get ; set ;}
}

ClassFirst1: Ifirst {}
ClassFirst2: Ifirst {}
ClassFirst3: Ifirst {}

ClassSecond1: isecond {}
ClassSecond2: isecond {}

 

 

Reference answer

 

 

[Testmethod]
Public   Void Testsetterinjection ()
{
VaR target =   New Target ()
{
First =   New First1 (),
Second =   New Second2 ()
};
Assert. isnotnull (target );
Assert. isinstanceoftype (target. First, Typeof (First1 ));
Assert. isinstanceoftype (target. Second, Typeof (Second2 ));
}