#!/usr/bin/env ruby
# -*- mode: ruby; coding: utf-8-unix -*- 
require 'test/unit'
require 'opencv'
require File.expand_path(File.dirname(__FILE__)) + '/helper'

include OpenCV

# Tests for OpenCV::CvTermCriteria
class TestCvTermCriteria < OpenCVTestCase
  def setup
    @criteria1 = CvTermCriteria.new
    @criteria2 = CvTermCriteria.new(100)
    @criteria3 = CvTermCriteria.new(nil, 0.01)
    @criteria4 = CvTermCriteria.new(100, 0.01)
  end
  
  def test_initialize
    assert_not_nil(@criteria1)
    assert_equal(CvTermCriteria, @criteria1.class)
    assert_not_nil(@criteria2)
    assert_equal(CvTermCriteria, @criteria2.class)
    assert_not_nil(@criteria3)
    assert_equal(CvTermCriteria, @criteria3.class)
    assert_not_nil(@criteria4)
    assert_equal(CvTermCriteria, @criteria4.class)
  end

  def test_type
    assert_equal(0, @criteria1.type)
    assert_equal(CV_TERMCRIT_ITER, @criteria2.type)
    assert_equal(CV_TERMCRIT_EPS, @criteria3.type)
    assert_equal(CV_TERMCRIT_ITER | CV_TERMCRIT_EPS, @criteria4.type)
  end

  def test_max
    assert_nil(@criteria1.max)
    assert_equal(100, @criteria2.max)
    assert_nil(@criteria3.max)
    assert_equal(100, @criteria4.max)

    @criteria1.max = 999
    assert_equal(999, @criteria1.max)
  end

  def test_eps
    assert_nil(@criteria1.eps)
    assert_nil(@criteria2.eps)
    assert_in_delta(0.01, @criteria3.eps, 0.001)
    assert_in_delta(0.01, @criteria4.eps, 0.001)

    @criteria1.eps = 3.14
    assert_in_delta(3.14, @criteria1.eps, 0.001)
  end
end