# Testing "while 1" versus "while" handling with if/elif/else's

def while_test(a, b, c):
    while a != 2:
        if b:
            a += 1
        elif c:
            c = 0
        else:
            break
    return a, b, c


def while1_test(a, b, c):
    while 1:
        if a != 2:
            if b:
                a = 3
                b = 0
            elif c:
                c = 0
            else:
                a += b + c
                break
    return a, b, c


assert while_test(2, 0, 0) == (2, 0, 0), "no while loops"
assert while_test(0, 1, 0) == (2, 1, 0), "two while loops of b branch"
assert while_test(0, 0, 0) == (0, 0, 0), "0 while loops, else branch"

# FIXME: put this in a timer, and try with a=2
assert while1_test(4, 1, 1) == (3, 0, 0), "three while1 loops"
assert while1_test(4, 0, 0) == (4, 0, 0), " one while1 loop"