public void AddInstanceSystem() { //Arrange TECTypical typical = ModelCreation.TestTypical(bid.Catalogs, rand); typical.AssignRandomScopeProperties(bid.Catalogs, rand); bid.Systems.Add(typical); MaterialSummaryVM matVM = new MaterialSummaryVM(bid, cw); //Act TECSystem instance = typical.AddInstance(); //Assert AssertMaterialVMMatchesCostBatch(matVM, instance.CostBatch); }