c# - How write a integration Test in Entity Framework to Test if data added to 2 related tables? -


i writing integration test in c# db taking care entity framework6. have problem test if data added correctly when data added 2 tables related key.

consider:

 make table - id, name, yearid   year table - id, calenderyear

relationship:

 1 many - 1 year has n make

this method in integration test test if can add both table:

    [testmethod]     [testcategory("integration")]     public void applicationscontext_addmake_shouldaddsuccessfully()     {         // arrange.         var currententity = applicationscontext.makes.tolist<make>();          // act.         var newyear = fakes.getnewyear();         applicationscontext.years.add(newyear);         applicationscontext.savechanges();            var newmake = fakes.getnewmake();         applicationscontext.makes.add(newmake);         applicationscontext.savechanges();          // assert.         var entityafteroperation = applicationscontext.makes.tolist<make>();         assert.istrue(currententity.count < entityafteroperation.count);     }

this fake class:

 public static year getnewyear()        {         var newyear = new year()         {             calendaryear = 2015         };         return newyear;        }       public static make getnewmake()       {         var newmake = new make()         {             name = "toyota",             description = "this make description",          };         return newmake;       }

this not working don'y know how send id of year make? error getting:

   {"violation of unique key constraint 'uq_year_calendaryear'. cannot insert  duplicate key in object 'common.year'. duplicate key value (2015).\r\nthe statement has been terminated."}

you're not relating year , make you're creating when add them database.

so before add them, should add newmake newyear.

var newyear = fakes.getnewyear(); newyear.makes.add(fakes.getnewmake());  applicationscontext.years.add(newyear); applicationscontext.savechanges();

when before saving changes, both added database in 1 shot.


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