c# - Moq function call with expression -


i have following interface used di , ioc webservice clients

    public interface iwcfserviceclientprovider <tcontract>: idisposable tcontract: class {      tresult execute<tresult>(expression<func<tcontract, tresult>> expression);     tresult execute<tresult>(expression<func<tcontract, tresult>> expression, bool closeconnection = true);      void execute(expression<action<tcontract>> expression);     void execute(expression<action<tcontract>> expression, bool closeconnection = true);   }

in test class have following:

 list<baselookup> mylist = new list<baselookup> {                          new baselookup { id =1, code = "1001"},                         new baselookup { id =2, code = "1002"},                         new baselookup { id =3, code = "1003"}};

in test method 

 mock<iwcfserviceclientprovider<ilookupservice>> lookupserviceclinetprovider = new mock<iwcfserviceclientprovider<ilookupservice>>();   var controller = new electorsearchcontroller(lookupserviceclinetprovider.object);  lookupserviceclinetprovider.setup(mock => mock.execute(lookup => lookup.getlist(10))).returns(mylist).verifiable();    var list = controller.testmethod();    lookupserviceclinetprovider.verifyall();

list have value when parameter getlist set 10 i.e getlist(10) not getlist(i) i=10

the following works

lookupserviceclinetprovider.setup(mock => mock.execute(it.isany<expression<func<ilookupservice, list<baselookup>>>>(), true )).returns((list<baselookup>)mylist).verifiable();

but want mock call getlist , not call execute. if works, can filter values in return method

as interim solution wrote simple brute-force solution compare expressions following:

    public static bool expressionmatcher<tin, tresult>(expression<func<tin, tresult>> expr1, expression<func<tin, tresult>> expr2)     {         if (expr1 == null || expr2 == null)         {             return false;         }          if (expr1 == expr2)         {             return true;         }          if (expr1.type != expr2.type)         {             return false;         }          if (expr1.body == expr2.body)         {             return true;         }          if (expr1.body.nodetype != expr2.body.nodetype)         {             return false;         }          if (expr1.body.nodetype == expressiontype.call)         {             dynamic expr1body = expr1.body;             dynamic expr2body = expr2.body;              if (expr1body.method.name == expr2body.method.name &&                 expr1body.method.returntype == expr2body.method.returntype)             {                 if (expr1body.arguments == null && expr2body.arguments == null)                 {                     return true;                 }                  if (expr1body.arguments.count != expr2body.arguments.count)                 {                     return false;                 }                  return true;             }         }          return false;      }

i used following call it

expression<func<ilookupservice, list<baselookup>>> expr = lookup => lookup.getmylist(it.isany<long>()); .setup(mock => mock.execute(it.is<expression<func<ilookupservice, list<baselookup>>>>(method => expressionmatcher(method, expr)))) .returns(mylist) .verifiable();

i don't need check arguments' type @ point. if have better answer, please let me know


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