public void CreateStringForDictTest() { //Arrange CalculationMethod calculationMethod = new CalculationMethod(); //Act var exp = expenseRepository.GetAllExpenses(1)[0]; string name = exp.Name; List <string> membersInvolved = exp.NamesOfMembersInvolved.Split(',').ToList(); string singleStringForDict = calculationMethod.CreateStringForDictionary(membersInvolved, name, 0); string expectedString = "Igor_Adam"; //Assert Assert.AreEqual(expectedString, singleStringForDict); }