how could I write a unit test for the following :

Using C# - MStest - How could i check if it returns correctly

public class API_FIRM_LINKController : ODataController

private Entities db =new Entities(); {

public IQueryable GetAPI_FIRM_LINK() {

return db.API_FIRM_LINK;

}

public SingleResult GetAPI_FIRM_LINK([FromODataUri] Guid key) {

return SingleResult.Create(db.API_FIRM_LINK.Where(aPI_FIRM_LINK => aPI_FIRM_LINK.ApiFirmLInkId == key ));

}

Test files :

public class API_FIRM_LINKControllerTests {

public void GetAPI_FIRM_LINKTest()

//arrange

//ac

t //assert

public void GetAPI_FIRM_LINKTest1() {

//arrange

//act

//assert

} If someone could assist me , it might be simple