def test_scale_out_of_bounds_high(self):
drawing = Drawing(1920, 1080)
drawing.scale_factor = 3
drawing.scale(10)
assert drawing.scale_factor == 3
def test_scale_down(self):
drawing = Drawing(1920, 1080)
drawing.scale(- 1080 / 10)
assert drawing.scale_factor == 0.75
def test_scale_near_canvas_bound(self):
drawing = Drawing(1920, 1080)
drawing.view_corner = (1920 * 2, 1080 * 2)
drawing.scale(1080 / 10)
assert drawing.view_corner == (3360, 1890)
def test_scale_up(self):
drawing = Drawing(1920, 1080)
drawing.scale(1080 / 10)
assert drawing.scale_factor == 1.25
def test_scale_out_of_bounds_low(self):
drawing = Drawing(1920, 1080)
drawing.scale_factor = 0.5
drawing.scale(-10)
assert drawing.scale_factor == 0.5
