def calc_pi(n=100):
"""Obliczanie liczby pi metodą Monte Carlo.
n oznacza liczbę losowanych punktów."""
r = 50
inCircle = 0
inSquare = n
for i in range(n):
point = Point(randint(0, r), randint(0, r))
if point.length() <= r:
inCircle += 1
return 4 * inCircle / inSquare
class TestPoint(unittest.TestCase):
def setUp(self):
self.sample_point = Point(2, 4)
def test_str(self):
self.assertEqual(str(self.sample_point), "(2, 4)")
self.assertEqual(repr(self.sample_point), "Point(2, 4)")
def test_eq(self):
self.assertTrue(self.sample_point == self.sample_point)
self.assertTrue(self.sample_point == Point(2, 4))
self.assertFalse(self.sample_point == Point(1, 4))
self.assertFalse(self.sample_point == Point(2, 5))
def test_ne(self):
self.assertTrue(self.sample_point != Point(1, 4))
self.assertTrue(self.sample_point != Point(2, 5))
self.assertFalse(self.sample_point != self.sample_point)
self.assertFalse(self.sample_point != Point(2, 4))
def test_add_(self):
self.assertEqual(self.sample_point + self.sample_point, Point(4, 8))
self.assertEqual(Point(1, 2) + Point(3, 3), Point(4, 5))
def test_sub(self):
self.assertEqual(Point(6, 3) - Point(2, 7), Point(4, -4))
self.assertEqual(Point(6, 3) - Point(2, 0), Point(4, 3))
def test_mul(self):
self.assertEqual(self.sample_point * Point(2, 0), 4)
self.assertEqual(self.sample_point * Point(2, 3), 16)
self.assertEqual(self.sample_point * Point(2, -3), -8)
def test_cross(self):
self.assertEqual(self.sample_point.cross(Point(2, 5)), 2)
def test_length(self):
from math import sqrt
self.assertEqual(self.sample_point.length(), sqrt(20))
def test_length(self):
self.assertEqual(Point.length(Point(3, 4)), 5)
from points import Point point1 = Point(3, 7) point2 = Point(-2, 1) point1.__str__() point2.__repr__() print point1.eq(point2) print point1.ne(point2) print point1.add(point2) print point1.sub(point2) print point1.mul(point2) print point2.mul(point1) print point1.cross(point2) print point2.cross(point1) print point1.length() print point2.length()
