def test_rect_in_circle(self):
""" Test rect_in_circle returns correct result """
r1 = Rectangle(Point(0, 0), width=5, height=3)
c1 = Circle(Point(0, 0), radius=6)
self.assertTrue(rect_in_circle(c1, r1))
r1.bl = Point(3, 0) # TODO: Create a shift method that moves shapes
self.assertFalse(rect_in_circle(c1, r1))
def test_line_distance(self):
""" Test Line object distance method """
l = Line(Point(0, 0), Point(1, 1))
xy = Point(0, 2.5)
half_hypoteneuse = math.sqrt((2.5**2) + (2.5**2)) / 2
self.assertTrue(math.isclose(l.distance(xy), half_hypoteneuse))
xy = Point(0, 2)
d = 2 * math.sin(math.pi / 4)
self.assertTrue(math.isclose(l.distance(xy), d))
def test_line_segment_dot_product(self):
""" Test vector dot product implementaiton from https://www.geeksforgeeks.org/minimum-distance-from-a-point-to-the-line-segment-using-vectors/"""
a = Point(0, 0)
b = Point(2, 0)
e = Point(4, 0)
ab = LineSegment(a, b)
be = LineSegment(b, e)
ae = LineSegment(a, e)
self.assertTrue(ab.dot_product(be) == 4)
self.assertTrue(ab.dot_product(ae) == 8)
def test_rect_circle_overlap(self):
""" Test some expected values for this overlap function"""
c = Circle(Point(), 5)
r = Rectangle(Point(0, 5), 1, 1)
self.assertTrue(rect_circle_overlap(c, r))
r.bl = Point(4, 3)
self.assertTrue(rect_circle_overlap(c, r))
r.bl = Point(3.75, 3.75)
self.assertFalse(rect_circle_overlap(c, r))
r.bl = Point(5, -0.5)
self.assertTrue(rect_circle_overlap(c, r))
def main():
bob = turtle.Turtle()
box = Rectangle()
box.width = 100
box.height = 50
box.corner = Point()
box.corner.x = 0
box.corner.y = 0
circle = Circle()
circle.radius = 50
circle.center = Point()
circle.center.x = 0
circle.center.y = 0
draw_rect(bob, box)
draw_circle(bob, circle)
turtle.Screen().mainloop()
def test_line_segment_shortest_distance(self):
a = Point(0, 0)
b = Point(2, 0)
e = Point(4, 0)
ab = LineSegment(a, b)
be = LineSegment(b, e)
ae = LineSegment(a, e)
self.assertTrue(ab.distance(e) == 2)
b = Point(2, 2)
e = Point(2, 0)
ab = LineSegment(a, b)
be = LineSegment(b, e)
ae = LineSegment(a, e)
d = 2 * math.sin(math.pi / 4)
self.assertTrue(math.isclose(ab.distance(e), d))
def setUp(self):
self.rectangle = Rectangle(Point(0, 0), 100, 100)
def test_point_distance(self):
"""Helper method behaves as expected"""
pointa = Point(0, 0)
pointb = Point(3, 4)
self.assertTrue(pointa.distance(pointb) == 5)