public void adding_vector_produces_sum_vector()
{
var left = new Vector2F(1, 2);
var right = new Vector2F(3, 4);
var expected = new Vector2F(4, 6);
var actual = left.GetSum(right);
Assert.Equal(expected, actual);
}
public void op_addition_mimics_add()
{
var left = new Vector2F(1, 2);
var right = new Vector2F(-3, -100);
var expected = left.GetSum(right);
var actual = left + right;
Assert.Equal(expected, actual);
}
public void adding_vectors_leaves_operands_unchanged()
{
var left = new Vector2F(1, 2);
var expectedLeft = new Vector2F(left);
var right = new Vector2F(3, 4);
var expectedRight = new Vector2F(right);
var result = left.GetSum(right);
Assert.Equal(expectedLeft, left);
Assert.Equal(expectedRight, right);
}
