public void Test_Equals()
{
var vector = new Vector(2, 5, 9);
var equalVector = new Vector(2, 5, 9);
var unequalVector = new Vector(1, 2, 3);
Assert.AreEqual(vector, equalVector);
Assert.AreNotEqual(vector, unequalVector);
Assert.AreNotEqual(vector, null);
Assert.AreNotEqual(vector, new object());
}