public void When_checking_values()
{
var personA = new Person {
Name = "A", Age = 1
};
var personB = new Person {
Name = "B", Age = 2
};
var personC = new Person {
Name = "C", Age = 3
};
var collection = new KeyedCollectionEx <string, Person>(p => p.Name)
{
personA,
personB,
personC
};
collection.ShouldNotBeNull();
collection.Count.ShouldBe(3);
collection.Values.ShouldNotBeNull();
collection.Values.ShouldNotBeEmpty();
collection.Values.Count.ShouldBe(3);
collection.Values.ShouldBe(new[] { personA, personB, personC });
collection.RemoveAt(1);
collection.Count.ShouldBe(2);
collection.Values.Count.ShouldBe(2);
collection.Values.ShouldBe(new[] { personA, personC });
}
public void When_creating_a_new_keyedCollectionEx_with_non_default_comparer()
{
var personA = new Person {
Name = "A", Age = 1
};
var personB = new Person {
Name = "B", Age = 2
};
var personC = new Person {
Name = "C", Age = 3
};
var collection = new KeyedCollectionEx <string, Person>(p => p.Name, StringComparer.OrdinalIgnoreCase)
{
personA,
personB
};
collection.ShouldNotBeNull();
collection.Count.ShouldBe(2);
collection.Contains("A").ShouldBeTrue();
collection.Contains("a").ShouldBeTrue();
collection.Contains("B").ShouldBeTrue();
collection.Contains("b").ShouldBeTrue();
collection.Contains("C").ShouldBeFalse();
collection.Contains("c").ShouldBeFalse();
collection.Contains(personA).ShouldBeTrue();
collection.Contains(personB).ShouldBeTrue();
collection.Contains(personC).ShouldBeFalse();
collection.Add(personC);
collection.Contains("C").ShouldBeTrue();
collection.Contains("c").ShouldBeTrue();
collection.Contains(personC).ShouldBeTrue();
var dodgyPerson = new Person {
Name = "A", Age = 666
};
Should.Throw <ArgumentException>(() => collection.Add(dodgyPerson)).Message
.ShouldBe("An item with the same key has already been added.");
collection["A"].Age.ShouldBe(1);
collection["B"].Age.ShouldBe(2);
collection["C"].Age.ShouldBe(3);
Person somePerson;
collection.TryGet("A", out somePerson).ShouldBeTrue();
somePerson.ShouldNotBeNull();
somePerson.Age.ShouldBe(1);
collection.TryGet("D", out somePerson).ShouldBeFalse();
somePerson.ShouldBeNull();
}