public void OptionNoneTeste()
{
var person = new Person
{
Name = "Robb Stark"
};
var optionperson = Option.From(person);
var logradouro = optionperson
.Map(p => p.Address)
.Map(e => e.City)
.GetOrElse("Não informado");
logradouro.Should().Be("Não informado");
}
public void OptionSomeTeste()
{
var person = new Person
{
Name = "Robb Stark",
Address = new Address
{
City = "Winterfell"
}
};
var optionperson = Option.From(person);
var logradouro = optionperson
.Map(p => p.Address)
.Map(e => e.City)
.GetOrElse("Não informado");
logradouro.Should().Be("Winterfell");
}
public void WhereOperatorWithFalsePredicate()
{
var person = new Person
{
Name = "Robb Stark"
};
var res = from p in person.ToOption()
where p.Name == "Jon Snow"
select p;
res.Should().Be(Option.None);
}
public void WhereOperatorWithTruePredicate()
{
var person = new Person
{
Name = "Robb Stark"
};
var res = from p in person.ToOption()
where p.Name == "Robb Stark"
select p.Name;
res.GetOrElse("").Should().Be("Robb Stark");
}
public void LinqSelectManyWithNull()
{
var person = new Person
{
Name = "Robb Stark"
};
var res = (from p in Option.From(person)
from e in p.Address.ToOption()
select e.City).GetOrElse("Sem endereco");
res.Should().Be("Sem endereco");
}
public void LinqSelectMany()
{
var person = new Person
{
Name = "Robb Stark",
Address = new Address
{
City = "Winterfell"
}
};
var res = from p in Option.From(person)
from e in p.Address.ToOption()
select e.City;
res.Should().Be(Option.From("Winterfell"));
}