How to use multiple specs in another

[maxime-aubry]

Hello

I try to use multiple specs in another, to create a complex spec. Is it possible ?

Thanks :)

public class DuplicateExpenseSpecification : Specification<Expense>
{
    public DuplicateExpenseSpecification(Expense expense)
    {
        ISpecification<Expense> expenseWithAmountSpecification = new ExpenseWithAmountSpecification(expense.Amount);
        ISpecification<Expense> expenseWithCurrencySpecification = new ExpenseWithCurrencySpecification(expense.Currency);
        ISpecification<Expense> expenseWithUserIdSpecification = new ExpenseWithUserIdSpecification(expense.UserId);

        // this.Query...
    }
}