def test_failed_add_rectangle(self):
try:
c = canvas.Canvas()
c.init(20, 4)
c.add_rectangle(14, 1, 18, 1)
except Exception as e:
assert str(e) == 'not rectangle'
try:
c = canvas.Canvas()
c.init(20, 4)
c.add_rectangle(14, 1, 18, 100)
except Exception as e:
assert str(e) == 'start and/or end point not in canvas'
def test_failed_add_line(self):
try:
c = canvas.Canvas()
c.init(20, 4)
c.add_line(1, 2, 6, 3)
assert False
except Exception as e:
assert str(e) == 'not horizontal line or vertical line'
try:
c = canvas.Canvas()
c.init(20, 4)
c.add_line(1, 100, 6, 100)
except Exception as e:
assert str(e) == 'start and/or end point not in canvas'
def test_passed_generic(self):
c = canvas.Canvas()
c.init(20, 4)
c.add_line(1, 2, 6, 2)
c.add_line(6, 3, 6, 4)
c.add_rectangle(14, 1, 18, 3)
c.bucket_fill(10, 3, 'o')
assert c.draw() == '----------------------\n' \
'|oooooooooooooxxxxxoo|\n' \
'|xxxxxxooooooox xoo|\n' \
'| xoooooooxxxxxoo|\n' \
'| xoooooooooooooo|\n' \
'----------------------\n'
c.bucket_fill(10, 3, 'c')
assert c.draw() == '----------------------\n' \
'|cccccccccccccxxxxxcc|\n' \
'|xxxxxxcccccccx xcc|\n' \
'| xcccccccxxxxxcc|\n' \
'| xcccccccccccccc|\n' \
'----------------------\n'
c.bucket_fill(1, 3, 'a')
assert c.draw() == '----------------------\n' \
'|cccccccccccccxxxxxcc|\n' \
'|xxxxxxcccccccx xcc|\n' \
'|aaaaaxcccccccxxxxxcc|\n' \
'|aaaaaxcccccccccccccc|\n' \
'----------------------\n'
def main():
c = canvas.Canvas()
while True:
cmd = input("enter command: ")
try:
handle(cmd, c)
except Exception as e:
print(str(e))
def test_failed_bucket_fill(self):
try:
c = canvas.Canvas()
c.init(20, 4)
c.add_rectangle(14, 1, 18, 100)
c.bucket_fill(100, 2, 'o')
except Exception as e:
assert str(e) == 'start and/or end point not in canvas'
def test_passed_init(self):
c = canvas.Canvas()
c.init(20, 4)
assert c.draw() == '----------------------\n' \
'| |\n' \
'| |\n' \
'| |\n' \
'| |\n' \
'----------------------\n'
def test_passed_add_rectangle(self):
c = canvas.Canvas()
c.init(20, 4)
c.add_rectangle(14, 1, 18, 3)
assert c.draw() == '----------------------\n' \
'| xxxxx |\n' \
'| x x |\n' \
'| xxxxx |\n' \
'| |\n' \
'----------------------\n'
def test_passed_add_line(self):
c = canvas.Canvas()
c.init(20, 4)
c.add_line(1, 2, 6, 2)
assert c.draw() == '----------------------\n' \
'| |\n' \
'|xxxxxx |\n' \
'| |\n' \
'| |\n' \
'----------------------\n'
def test_passed_bucket_fill(self):
c = canvas.Canvas()
c.init(20, 4)
c.add_rectangle(14, 1, 18, 3)
c.bucket_fill(15, 2, 'o')
assert c.draw() == '----------------------\n' \
'| xxxxx |\n' \
'| xooox |\n' \
'| xxxxx |\n' \
'| |\n' \
'----------------------\n'
def test_failed_without_init(self):
try:
c = canvas.Canvas()
c.add_line(1, 2, 6, 2)
except Exception as e:
assert str(e) == 'canvas not init yet'