def test_pixel_class(self):
point = gfx2d.Point2d(9, 7)
color = gfx2d.RgbColor(255, 0, 1)
pixel = gfx2d.Pixel(point, color)
self.assertEqual(pixel.point, gfx2d.Point2d(9, 7))
self.assertEqual(pixel.color, gfx2d.RgbColor(255, 0, 1))
self.assertEqual(pixel, gfx2d.Pixel.from_ints(9, 7, 255, 0, 1))
def test_line_class(self):
point1 = gfx2d.Point2d(9, 7)
point2 = gfx2d.Point2d(3, 2)
color = gfx2d.RgbColor(255, 5, 4)
line = gfx2d.Line(point1, point2, color)
self.assertEqual(line.start_point, gfx2d.Point2d(9, 7))
self.assertEqual(line.end_point, point2)
self.assertEqual(line.color, color)
def test_point_equals(self):
''' Hint this is genearl equality method ( not recommendet but for whis tests useful)
def __eq__(self, other):
if isinstance(self, other.__class__):
return self.__dict__ == other.__dict__
return False
'''
point1 = gfx2d.Point2d(9, 7)
point2 = gfx2d.Point2d(9, 7)
self.assertEqual(point1, point2)
def test_point_distanse_calculation(self):
'''
see: https://www.mathsisfun.com/algebra/distance-2-points.html
p1 = (xa,ya), p2 = (xb,yb)
distance = sqrt((xa-xb)^2+(ya-yb)^2)
lets round it with an accuracy of up to thousandth (0.001)
'''
point1 = gfx2d.Point2d(9, 7)
point2 = gfx2d.Point2d(3, 2)
distance = point1.distance_to(point2)
self.assertEqual(distance, 7.81)
def test_draw_line_method(self):
# https://en.wikipedia.org/wiki/Line_drawing_algorithm
point1 = gfx2d.Point2d(3, 2)
point2 = gfx2d.Point2d(9, 7)
color = gfx2d.RgbColor(255, 5, 4)
line = gfx2d.Line(point1, point2, color)
pixels: List[gfx2d.Pixel] = line.create_pixels()
pixels_to_check: List[gfx2d.Pixel] = [
gfx2d.Pixel.from_ints(3, 2, 255, 5, 4),
gfx2d.Pixel.from_ints(4, 2, 255, 5, 4),
gfx2d.Pixel.from_ints(5, 3, 255, 5, 4),
gfx2d.Pixel.from_ints(6, 4, 255, 5, 4),
gfx2d.Pixel.from_ints(7, 5, 255, 5, 4),
gfx2d.Pixel.from_ints(8, 6, 255, 5, 4),
gfx2d.Pixel.from_ints(9, 7, 255, 5, 4)
]
self.assertListEqual(pixels, pixels_to_check)
def test_point_class_int_constructor(self):
point = gfx2d.Point2d(12, 32)
self.assertEqual(point.x_cord, 12)
self.assertEqual(point.y_cord, 32)