test_generator.py

#!/usr/bin/env python
#-*- coding:utf-8 -*-

# Usage: python test_generator.py <number_of_tests> <length_of_tests>

import sys
import random

n, length = [int(i) for i in sys.argv[-2:]]

Lst = range(1, length+1)
lst = [str(i) for i in Lst]

print n
for x in xrange(n):
    random.shuffle(lst)
    print length
    print ' '.join(lst)