test.py

#!/usr/bin/python

import os
import sys
import math
from random import random

DISTANCE = 10000


# Generate random floating point numbers and print them to a file.
def main(n=100):
  f = open('tmp', 'w')

  points = []

  for i in range(n):
    point = (DISTANCE * random(), DISTANCE * random())
    points.append(point)
    f.write("%s,%s\n" % point)
  f.close()

  os.system('make clean')
  os.system('make')
  # os.system('cat tmp')
  print '-------------------'
  os.system('./closestpoints < tmp')

  min_dist = 10000000000
  min_point_a = None
  min_point_b = None
  for ax, ay in points:
    for bx, by in points:
      if (ax, ay) != (bx, by):
        dist = math.sqrt((ax - bx) ** 2 + (ay - by) ** 2)
        if dist < min_dist:
          min_dist = dist
          min_point_a = (ax, ay)
          min_point_b = (bx, by)

  print '-------------------'
  print '%.6f,%.6f' % min_point_a
  print '%.6f,%.6f' % min_point_b
  print 'Distance: %s' % min_dist
  print '-------------------'
  os.system('rm tmp')
  os.system('make clean')


if __name__ == '__main__':
  n = len(sys.argv)

  if n >= 2:
    main(int(sys.argv[1]))
  else:
    main()