public void LengthBetweenTwoPoints()
{
Vector2 v0 = new Vector2(0.0f, 0.0f);
Vector2 v1 = new Vector2(10.0f, 0.0f);
var result = Vector2Ext.DistanceBetweenTwoPoints(v0, v1);
Assert.Equal(10.0f, result);
}