public void HashCodeTests()
{
var h1 = nba1.GetHashCode();
var h1_copy = nba1_copy.GetHashCode();
var h2 = nhl1.GetHashCode();
var h1_conference = c1.GetHashCode();
Assert.AreEqual(h1, h1_copy);
Assert.AreNotEqual(h1, h2);
Assert.AreNotEqual(h1, h1_conference);
}