public void TestOpMultiplyByScalar()
{
float x1 = 2, y1 = 5;
float scalar = 25;
float x = x1 * scalar;
float y = y1 * scalar;
Vector2D v1 = new Vector2D(x1, y1);
//Left to right
Vector2D v = v1 * scalar;
TestHelper.AssertEquals(x, y, v, "Testing v * scale");
//Right to left
v = scalar * v1;
TestHelper.AssertEquals(x, y, v, "Testing scale * v");
}