public void ContainsTest()
{
var people = new ConcurrentHashSet <PersonProper>(2, 10);
people.AddRange(RandomData.GeneratePersonCollection <PersonProper>(10));
var person = people.Last();
var result = people.Contains(person);
Assert.IsTrue(result);
Assert.IsFalse(people.Contains(RandomData.GeneratePerson <PersonProper>()));
}