public void IsSatisfiedBy_ShouldBeSatisfied_WhenBalanceIsPositive()
{
var bankAccount = new BankAccount(1m);
ISpecification <BankAccount> specification = new PositiveAccountBalanceSpecification();
bool isSatisfied = specification.IsSatisfiedBy(bankAccount);
Assert.True(isSatisfied);
Assert.Empty(specification.FailureReasons);
}
public void IsSatisfiedBy_ShouldNotBeSatisfied_WhenBalanceIsNotPositive(double balance)
{
var bankAccount = new BankAccount((decimal)balance);
ISpecification <BankAccount> specification = new PositiveAccountBalanceSpecification();
bool isSatisfied = specification.IsSatisfiedBy(bankAccount);
Assert.False(isSatisfied);
Assert.Equal("Account must have a positive balance for this operation",
specification.FailureReasons.Single());
}
public void IsSatisfiedBy_ShouldThrowException_WhenBankAccountIsNull()
{
ISpecification <BankAccount> specification = new PositiveAccountBalanceSpecification();
Assert.Throws <ArgumentNullException>(() => specification.IsSatisfiedBy(null));
}
