Exception not thrown in python3

[ONEoo7]

Why does the call of inclusive_range() at line 71 not throw an exception and instead it prints "Test FAILED"?

def test(*args):
    print(type(args))
    print(len(args))
    if len(args) == 1:
        raise ValueError("too many args, [1, 2]")

def inclusive_range(*args):
    numargs = len(args)
    print(numargs)
    if numargs < 1:
        raise ValueError("number of args less than 1, needed interval [1, 3]")
    elif numargs == 1:
        start = 0
        stop = args[0]
        step = 1
    elif numargs == 2:
        (start, stop) = args
        step = 1
    elif numargs == 3:
        (start, stop, step) = args
    else:
        raise ValueError("number of args greater than 3, needed interval [1, 3]")
    i = start
    while i <= stop:
        yield i
        i += step

# test cases
def main():
    # valid 1 arg
    for i in inclusive_range(20):
        print(i, end=' ')
    print()
        
    # valid 2 args
    for i in inclusive_range(0, 21):
        print(i, end=' ')
    print()
    
    # valid 3 args
    for i in inclusive_range(0, 22, 2):
        print(i, end=' ')
    print()
    
    # invalid 0 args
    try:
        myRange = inclusive_range()
        for i in myRange:
            print(i)
    except ValueError as e:
        print(e)
    except:
        print("Unknown exception occured")
    else:
        print("Test FAILED")
        
    # invalid 4 args
    try:
        myRange = inclusive_range(1, 2, 3, 4)
        for i in myRange:
            print(i)
    except ValueError as e:
        print(e)
    except:
        print("Unknown exception occured")
    else:
        print("Test FAILED")
        
    # invalid 5 args, warning myRange not used (possibly optimized out by python)
    try:
        myRange = inclusive_range(1, 2, 3, 4, 5)
    except ValueError as e:
        print(e)
    except:
        print("Unknown exception occured")
    else:
        print("Test FAILED")
    
    test()
    try:
        test(1)
    except ValueError as e:
        print(e)
    else:
        print("everything is fine here, move along.")


if __name__ == "__main__": main()