def test_gap_two_radii():
a = Wire(-1, 0, 0.5)
b = Wire(1, 0, 1)
assert a.gap_to(b) == approx(0.5)
def test_gap():
a = Wire(-1, 0, 0.5)
b = Wire(1, 0, 0.5)
assert a.gap_to(b) == approx(1)
def test_gap_two_radii():
a = Wire(-1, 0, 0.5)
b = Wire(1, 0, 1)
assert a.gap_to(b) == approx(0.5)
def test_gap():
a = Wire(-1, 0, 0.5)
b = Wire(1, 0, 0.5)
assert a.gap_to(b) == approx(1)