# $Id$
#
# Copyright (C) 2003-2006 Rational Discovery LLC
#
#   @@ All Rights Reserved  @@
#
import unittest
import random
from DataStructs.TopNContainer import TopNContainer

class TestCase(unittest.TestCase):
  def test1(self):
    """ simple test with a known answer """
    cont = TopNContainer(4)
    for foo in range(10):
      cont.Insert(foo,str(foo))
    assert cont.GetPts()==range(6,10)
    assert cont.GetExtras()==[str(x) for x in range(6,10)]
  def test2(self):
    """ larger scale random test """
    cont = TopNContainer(50)
    for i in range(1000):
      cont.Insert(random.random())
    vs = cont.GetPts()
    last = vs.pop(0)
    while vs:
      assert vs[0]>=last
      last = vs.pop(0)
  def test3(self):
    """ random test with extras"""
    cont = TopNContainer(10)
    for i in range(100):
      v = random.random()
      cont.Insert(v,v+1)
    vs = cont.GetExtras()
    last = vs.pop(0)
    while vs:
      assert vs[0]>=last
      last = vs.pop(0)
  def test4(self):
    """ random test with extras and getitem"""
    cont = TopNContainer(10)
    for i in range(100):
      v = random.random()
      cont.Insert(v,v+1)
    lastV,lastE = cont[0]
    for i in range(1,len(cont)):
      v,e = cont[i]
      assert v>=lastV
      assert e>=lastE
      lastV,lastE = v,e
  def test5(self):
    """ random test with extras and getitem, include reverse"""
    cont = TopNContainer(10)
    for i in range(100):
      v = random.random()
      cont.Insert(v,v+1)
    cont.reverse()
    lastV,lastE = cont[0]
    for i in range(1,len(cont)):
      v,e = cont[i]
      assert v<=lastV
      assert e<=lastE
      lastV,lastE = v,e

if __name__ == '__main__':
  unittest.main()