def test_incircle(self):
assert sgn(incircle([0, -1], [1, 0], [0, 1], [-0.5, 0])) == 1
assert sgn(incircle([0, -1], [1, 0], [0, 1], [-1, 0])) == 0
assert sgn(incircle([0, -1], [1, 0], [0, 1], [-1.5, 0])) == -1
x = 1e-64
for i in range(128):
assert sgn(incircle([0, x], [-x, -x], [x, -x], [0, 0])) == 1
assert sgn(incircle([0, x], [-x, -x], [x, -x], [0, 2 * x])) == -1
assert sgn(incircle([0, x], [-x, -x], [x, -x], [0, x])) == 0
x *= 10
def test_outside(self):
"""Point outside circle, negative value returned"""
assert incircle((0,0), (10,0), (0,10), (-100,-100)) == -2200000.0
def test_inside(self):
"""Point inside circle, positive value returned"""
assert incircle((0,0), (10,0), (0,10), (1,1)) == 1800.
def test_onboundary(self):
"""Point on boundary of circle, zero"""
assert incircle((0,0), (10,0), (0,10), (0,10)) == 0.