public void EqualsAndHash()
{
Inertia inertia = new Inertia(1, 2, 3, 4, 5, 6);
Inertia same = new Inertia(1, 2, 3, 4, 5, 6);
Inertia diff = new Inertia(7, 7, 7, 7, 7, 7);
Assert.IsTrue(inertia.Equals(inertia));
Assert.IsFalse(inertia.Equals(null));
Assert.IsTrue(inertia.Equals(same));
Assert.IsTrue(same.Equals(inertia));
Assert.IsFalse(inertia.Equals(diff));
Assert.AreEqual(inertia.GetHashCode(), same.GetHashCode());
Assert.AreNotEqual(inertia.GetHashCode(), diff.GetHashCode());
}
/// <summary>
/// Gets the hash code
/// </summary>
/// <returns>The int</returns>
public override int GetHashCode()
{
int result = Area.GetHashCode();
result = (result * 397) ^ Centroid.GetHashCode();
result = (result * 397) ^ Inertia.GetHashCode();
result = (result * 397) ^ Mass.GetHashCode();
return(result);
}