## BRANCH

# if then else end (1)
1 if then 'ok' end
-> stack should be 'ok'
erase

# if then else end (2)
1 if 'before' then 'ok' end
-> stack should be 'before', 'ok'
erase

# if then else end (3)
0 if then 'ok' end
-> stack size should be 0
erase

# if then else end (4)
0 if then 'ok' end
-> stack size should be 0
erase

# if then else end (5)
1 if then 'ok' else 'KO' end
-> stack should be 'ok'
erase

# if then else end (6)
1 if then 'ok' 'dokey' else 'KO' end
-> stack should be 'ok', 'dokey'
erase

# if then else end (7)
0 if then 'ok' else 'KO' end
-> stack should be 'KO'
erase

# if then else end - error case (1)
if then end
-> error should be 2
erase

# if then else end - error case (2)
0 if then
-> error should be 11
erase

# if then else end - error case (3)
0 if end
-> error should be 11
erase

# if then else end - error case (4)
0 if end
-> error should be 11
erase

# if then else end - error case (5)
then
-> error should be 11
erase

# if then else end - error case (6)
1 if
-> error should be 11
erase

# if then else end - error case (7)
else
-> error should be 11
erase

# if then else end - error case (8)
end
-> error should be 11
erase

# if then else end - error case (9)
"1" if then end
-> error should be 3
erase

# ift (1)
1 'ok' ift
-> stack should be 'ok'
erase

# ift (2)
0 'ok' ift
-> stack size should be 0
erase

# ift (3)
'ok' ift
-> error should be 2
-> stack size should be 1
erase

# ift (4)
ift
-> error should be 2
-> stack size should be 0
erase

# ifte (1)
1 'ok' 'nok' ifte
-> stack should be 'ok'
erase

# ifte (2)
0 'ok' 'nok' ifte
-> stack should be 'nok'
erase

# ifte (3)
'ok' 'nok' ifte
-> error should be 2
-> stack size should be 2
erase

# ifte (4)
'nok' ifte
-> error should be 2
-> stack size should be 1
erase

# ifte (5)
ifte
-> error should be 2
-> stack size should be 0
erase

# start next (1)
1 2 start 0 next
-> stack should be 0, 0
erase

# start next (2)
2 1 start 0 next
-> stack size should be 0
erase

# start next (3)
-2 -1 start 0 next
-> stack should be 0, 0
erase

# start next (4)
-1 -2 start 0 next
-> stack size should be 0
erase

# start next (5)
1 1 start 0 next
-> stack should be 0
erase

# start next - error case (1)
1 start next
->error should be 2
erase

# start next - error case (2)
start next
->error should be 2
erase

# start next - error case (3)
start
->error should be 11
erase

# start next - error case (4)
next
->error should be 11
erase

# start next - error case (5)
"1" 2 start next
->error should be 3
erase

# start next - error case (5)
1 "2" start next
->error should be 3
erase

# for next (1)
23 27 for i i next
-> stack should be 23, 24, 25, 26, 27
erase

# for next (2)
1 1 for i i next
-> stack should be 1
erase

# for next (3)
27 23 for i i next
-> stack size should be 0
erase

# for next (4)
-2 -1 for i i next
-> stack should be -2, -1
erase

# for next (5)
-1 -2 for i i next
-> stack size should be 0
erase

# for next - error case (1)
1 for i i next
-> error should be 2
erase

# for next - error case (2)
for i i next
-> error should be 2
erase

# for next - error case (3)
"1" 2 for i i next
-> error should be 3
erase

# for next - error case (4)
1 "2" for i i next
-> error should be 3
erase

# for next - error case (5)
1 2 for i i
-> error should be 11
erase

# for next - error case (6)
for
-> error should be 11
erase

# for step (1)
23 27 for i i 1 step
-> stack should be 23, 24, 25, 26, 27
erase

# for step (2)
0 1 for i i 0.25 step
-> stack should be 0, 0.25, 0.5, 0.75, 1
erase

# for step (3)
-1 0 for i i 0.25 step
-> stack should be -1, -0.75, -0.5, -0.25, 0
erase

# for step (4)
0 -1 for i i 0.25 step
-> stack size should be 0
erase

# for step (5)
0 -1 for i i -0.25 step
-> stack size should be 0
erase

# for step - error case (1)
0 1 for i i "0.5" step
-> error should be 3
erase

# for step - error case (2)
step
-> error should be 11
erase

# do..unti (1)
do 'ok' unti 1 end
-> stack should be 'ok'
erase

# do..unti (2)
do unti 1 end
-> stack size should be 0
erase

# do..unti (3)
1 'a' sto do a unti a 0 > end
-> stack should be 1
erase

# do..unti (4)
1 'a' sto do a 'a' 1 sto+ unti a 3 > end
-> stack should be 1, 2, 3
erase

# do..unti (5)
"" 0 'a' sto do 'a' 1 sto+ 0 a for b b ->str + next unti a 3 > end
-> stack should be "01012012301234"
erase

# do..unti error case (1)
do
-> error should be 11
erase

# do..unti error case (2)
do 8 end
-> error should be 11
erase

# do..unti error case (3)
unti
-> error should be 11
erase

# do..unti error case (4)
do 3 unti
-> error should be 11
erase

# do..unti error case (5)
unti 1 end
-> error should be 11
erase

# do..unti error case (6)
do 3 repeat 8 end
-> error should be 11
erase

# do..unti error case (7)
do 3 until 8 until 9 end
-> error should be 11
erase

# while..repeat (1)
while 0 repeat ok end
-> stack size should be 0
erase

# while..repeat (2)
2 while dup 0.1 > repeat dup 2 / end
-> stack should be 2, 1, 0.5, 0.25, 0.125, 0.0625
erase

# while..repeat (3)
"" 0 'a' sto while a 3 < repeat 'a' 1 sto+ 0 a for b b ->str + next end
-> stack should be "010120123"
erase

# while..repeat error case (1)
while
-> error should be 11
erase

# while..repeat error case (2)
while 3 end
-> error should be 11
erase

# while..repeat error case (3)
repeat
-> error should be 11
erase

# while..repeat error case (4)
while 1 repeat
-> error should be 11
erase

# while..repeat error case (5)
repeat 1 end
-> error should be 11
erase

# while..repeat error case (6)
while 3 repeat 8 repeat 9 end
-> error should be 11
erase

# while..repeat error case (7)
while 3 until 8 end
-> error should be 11
erase