def test_origin_not_in_triangle(self):
"""
"""
tri = Trigon((-175, 41), (-421, -714), (574, -645))
assert Vuple((0, 0)) not in tri
assert not tri.contains_origin()
def test_point_on_perimeter(self):
"""
"""
pts = [(-340, 495), (-153, -910), (835, -947)]
tri = Trigon.from_points(pts)
assert tri.is_perimeter_point(pts[0])
def test_origin_in_triangle(self):
"""
"""
pts = [(-340, 495), (-153, -910), (835, -947)]
tri = Trigon.from_points(pts)
assert (0, 0) in tri
assert tri.contains_origin()
def p102():
# open file and put into list
with open(r'../../txt_files/p102_triangles.txt') as f:
triangles = [
tuple(map(int, j.split(',')))
for j in [i.strip('\n') for i in f.readlines()]
]
# check if (0, 0) in triangle for triangle in the list
return sum(1 for tri in triangles if (0, 0) in Trigon.from_points(tri))
def test_triangle_area_half(self):
"""
"""
t2 = [(1, 0), (0, 1), (0, 0)]
assert 0.5 == Trigon(*t2).area()