def test_canvas_bucket_fill_shape():
width, height = 10, 10
canvas = Canvas(width, height)
line = Line(Point(0, 1), Point(9, 1))
canvas.draw_line(line)
canvas.bucket_fill(Point(0, 1), 'o')
#line has been filled
for point in line.get_points():
assert canvas.cells[point.x][point.y] == (CanvasCellContentType.Line,
'o')
#rest have not been filled
for x in range(width):
for y in range(height):
if Point(x, y) not in line.get_points():
assert canvas.cells[x][y] == (CanvasCellContentType.Empty, ' ')
def test_canvas_draw_line_vertical():
canvas = Canvas(50, 50)
from_point = Point(3, 3)
to_point = Point(3, 35)
line = Line(from_point, to_point)
canvas.draw_line(line)
for point in line.get_points():
assert canvas.cells[point.x][point.y] == (CanvasCellContentType.Line,
'x')
def test_line_get_points_for_horizontal_line():
from_point = Point(1, 1)
to_point = Point(1, 5)
expected_points = [
from_point,
Point(1, 2),
Point(1, 3),
Point(1, 4), to_point
]
line = Line(from_point, to_point)
points = line.get_points()
assert points == expected_points
def test_line_get_points_for_vertical_line():
from_point = Point(1, 1)
to_point = Point(5, 1)
expected_points = [
from_point,
Point(2, 1),
Point(3, 1),
Point(4, 1), to_point
]
line = Line(from_point, to_point)
points = line.get_points()
assert points == expected_points
def test_canvas_bucket_fill_area():
width, height = 10, 10
canvas = Canvas(width, height)
line = Line(Point(0, 2), Point(9, 2))
canvas.draw_line(line)
canvas.bucket_fill(Point(0, 0), 'o')
#top area have been filled
for x in range(width):
assert (canvas.cells[x][0] == (CanvasCellContentType.Empty, 'o')
and canvas.cells[x][1] == (CanvasCellContentType.Empty, 'o'))
#bottom area have not been filled
for y in range(3, height):
assert canvas.cells[x][y] == (CanvasCellContentType.Empty, ' ')
#line have not been filled
for point in line.get_points():
assert canvas.cells[point.x][point.y] == (CanvasCellContentType.Line,
'x')