public void it_should_return_all_values_from_the_original_collection_except_the_values_contained_in_the_second_collection()
{
var secretUsers = new[] { "Paul", "Jhon" };
var allUsers = new DataRepositoryDummy().GetPeopleWithPets().ToList();
allUsers.Add(new Person { Age = 12, LanguagesSpoken = Enumerable.Empty<Language>(), Name = "Jhon" });
var q = allUsers.Select(x => x.Name).Distinct().Except(secretUsers);
q.Should().HaveCount(3);
q.Should().OnlyHaveUniqueItems();
// alternate example 1
var q1 = (from u in allUsers
from s in secretUsers
where u.Name == s
select u).Distinct();
var q11 = allUsers.Except(q1);
q11.Should().HaveCount(3);
q11.Should().OnlyHaveUniqueItems();
// alternate example 2 - does not work
//var q2 = (from u in allUsers
// from s in secretUsers
// where u.Name != s
// select u).Distinct();
//q2.Should().HaveCount(3);
//q2.Should().OnlyHaveUniqueItems();
}
public void it_should_serialize_and_deserialize_the_Person_object()
{
var ser = new XmlSerializer(typeof(Person));
var stream = new MemoryStream();
var dataManager = new DataRepositoryDummy();
var people = dataManager.GetPeopleWithPets();
var person = people.First(x => x.Name.ToLower() == "jpol");
// person.Nickname = "octopus";
ser.Serialize(stream, person);
var xml = UTF8Encoding.UTF8.GetString(stream.ToArray());
xml.Should().NotBeBlank();
Console.WriteLine(xml);
stream.Seek(0, SeekOrigin.Begin);
var reader = new StreamReader(stream);
var xmlRead = reader.ReadToEnd();
xml.Should().Be(xmlRead);
stream.Seek(0, SeekOrigin.Begin);
var deserializedPerson = ser.Deserialize(new StreamReader(stream)) as Person;
deserializedPerson.Should().NotBeNull();
deserializedPerson.Name.Should().Be(person.Name);
}
public void TestingSelectMany()
{
// cross joins
var d = new DataRepositoryDummy();
var pets = d.GetPets();
var people = d.GetPeopleWithPets();
var q = from pet in pets
from person in people
select new { Person = person, Pet = pet };
q.Should().HaveCount(24);
var q1 = pets.SelectMany(x => people, (pet, person) => new { Pet = pet, Person = person });
q1.Should().HaveCount(24);
}
