public void Intersections_have_steps(string path1, string path2, string intersection, int expectedSteps1, int expectedSteps2)
{
var wire1 = new Wire(path1).GetIntersections();
var wire2 = new Wire(path2).GetIntersections();
Assert.That(wire1.ContainsKey(intersection), Is.True);
Assert.That(wire2.ContainsKey(intersection), Is.True);
Assert.That(wire1[intersection], Is.EqualTo(expectedSteps1));
}