implemented CvSize2D32f#to_s, CvSize2D32f#to_ary, and added some tests for CvSize and CvSize2D32f

test/test_cvsize.rb

@@ -0,0 +1,70 @@
+#!/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::CvSize
+class TestCvSize < OpenCVTestCase
+  class MySize; end
+
+  def test_width
+    size = CvSize.new
+    size.width = 100
+    assert_equal(100, size.width)
+    size.width = 200
+    assert_equal(200, size.width)
+  end
+
+  def test_height
+    size = CvSize.new
+    size.height = 100
+    assert_equal(100, size.height)
+    size.height = 200
+    assert_equal(200, size.height)
+  end
+
+  def test_compatible
+    assert(!(CvSize.compatible? MySize.new))
+    MySize.class_eval { def width; end }
+    assert(!(CvSize.compatible? MySize.new))
+    MySize.class_eval { def height; end }
+    assert(CvSize.compatible? MySize.new)
+    assert(CvSize.compatible? CvSize.new)
+  end
+
+  def test_initialize
+    size = CvSize.new
+    assert_equal(0, size.width)
+    assert_equal(0, size.height)
+
+    size = CvSize.new(10, 20)
+    assert_equal(10, size.width)
+    assert_equal(20, size.height)
+
+    size = CvSize.new(CvSize.new(10, 20))
+    assert_equal(10, size.width)
+    assert_equal(20, size.height)
+
+    assert_raise(ArgumentError) {
+      CvSize.new('string')
+    }
+    assert_raise(ArgumentError) {
+      CvSize.new(1, 2, 3)
+    }
+  end
+
+  def test_to_s
+    size = CvSize.new(10, 20)
+    assert_equal('<OpenCV::CvSize:10x20>', size.to_s)
+  end
+
+  def test_to_ary
+    a = CvSize.new(10, 20).to_ary
+    assert_equal(10, a[0])
+    assert_equal(20, a[1])
+  end
+end
+