test_TimeMeasure.py

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#!/usr/bin/env python
# -*- coding: euc-jp -*-
 
# @file test_TimeMeasure.py
# @brief test for TimeMeasure class
# @date $Date: 2009/02/18$
# @author Shinji Kurihara
#
# Copyright (C) 2009
#     Task-intelligence Research Group,
#     Intelligent Systems Research Institute,
#     National Institute of
#         Advanced Industrial Science and Technology (AIST), Japan
#     All rights reserved.
#
 
import time
import sys
import math
sys.path.insert(1,"../")
 
import unittest
from TimeMeasure import *
 
 
 
class TestTimeMeasure(unittest.TestCase):
  def setUp(self):
    self._tm = TimeMeasure(10)
  
  def test_tick_tack(self):
    for i in range(10):
      self._tm.tick()
      time.sleep(0.01)
      self._tm.tack()
    _max    = [0]
    _min    = [0]
    _mean   = [0]
    _stddev = [0]
    print("count: ", self._tm.count())
    print("result: ", self._tm.getStatistics(_max, _min, _mean, _stddev))
    print("max: ", _max[0])
    print("min: ", _min[0])
    print("mean: ", _mean[0])
    print("stddev: ", _stddev[0])
    return
 
  def test_coutn(self):
    tm_ = TimeMeasure()
    self.assertEqual(0, tm_.count())
 
    count0 = 10
    for i in range(10):
      tm_.tick()
      tm_.tack()
    self.assertEqual(10, tm_.count())
 
    tm_.reset()
    self.assertEqual(0, tm_.count())
 
 
    count0 = 102
    for i in range(102):
      tm_.tick()
      tm_.tack()
    self.assertNotEqual(102, tm_.count())
    return
 
  def test_stat(self):
    tm_ = TimeMeasure()
    maxi  = [0.0]
    mini  = [0.0]
    mean  = [0.0]
    stdev = [0.0]
 
    self.assertEqual(False, tm_.getStatistics(maxi, mini, mean, stdev))
    tm_.tick()
    self.assertEqual(False, tm_.getStatistics(maxi, mini, mean, stdev))
    tm_.tack()
    self.assertEqual(True, tm_.getStatistics(maxi, mini, mean, stdev))
    tm_.reset()
    self.assertEqual(False, tm_.getStatistics(maxi, mini, mean, stdev))
    return
 
  def test_buflen(self):
    tm_0 = TimeMeasure(1)
    self.assertEqual(0, tm_0.count())
    tm_0.tick()
    tm_0.tack()
    self.assertEqual(1, tm_0.count())
 
    count_ = 1024
    tm_1 = TimeMeasure(count_)
 
    for i in range(count_):
      self.assertEqual(i, tm_1.count())
      tm_1.tick()
      tm_1.tack()
 
    for i in range(count_):
      tm_1.tick()
      tm_1.tack()
      self.assertEqual(count_ + 1, tm_1.count())
    return
 
  def test_30ms(self):
    wait_ = 0.03 # [s]
    tm_ = TimeMeasure()
    for i in range(10):
      tm_.tick()
      time.sleep(wait_)
      tm_.tack()
 
    maxi  = [0.0]
    mini  = [0.0]
    mean  = [0.0]
    stdev = [0.0]
    tm_.getStatistics(maxi, mini, mean, stdev)
    print("test_30ms")
    print("max interval : ", maxi[0], " [sec]")
    print("min interval : ", mini[0], " [sec]")
    print("mean interval: ", mean[0], " [sec]")
    print("stddev       : ", stdev[0], " [sec]")
    self.assertTrue(maxi[0] < (wait_ + 0.030))
    self.assertTrue(mini[0] > (wait_ - 0.010))
    self.assertTrue(math.fabs(mean[0] - wait_) < 0.03)
    self.assertTrue(stdev[0] < (wait_ / 5.0))
    return
 
  def test_1s(self):
    wait_ = 1.0 # [s]
    tm_ = TimeMeasure()
    for i in range(1):
      tm_.tick()
      time.sleep(wait_)
      tm_.tack()
 
    maxi  = [0.0]
    mini  = [0.0]
    mean  = [0.0]
    stdev = [0.0]
    tm_.getStatistics(maxi, mini, mean, stdev)
    print("test_1ms")
    print("max interval : ", maxi[0], " [sec]")
    print("min interval : ", mini[0], " [sec]")
    print("mean interval: ", mean[0], " [sec]")
    print("stddev       : ", stdev[0], " [sec]")
    self.assertTrue(maxi[0] < (wait_ + 0.030))
    self.assertTrue(mini[0] > (wait_ - 0.010))
    self.assertTrue(math.fabs(mean[0] - wait_) < 0.03)
    self.assertTrue(stdev[0] < (wait_ / 5.0))
    return
  
 
if __name__ == '__main__':
  unittest.main()