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

test/test_cvsize2d32f.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::CvSize2D32f
+class TestCvSize2D32f < OpenCVTestCase
+  class MySize; end
+
+  def test_width
+    size = CvSize2D32f.new
+    size.width = 1.1
+    assert_in_delta(1.1, size.width, 0.001)
+    size.width = 2.2
+    assert_in_delta(2.2, size.width, 0.001)
+  end
+
+  def test_height
+    size = CvSize2D32f.new
+    size.height = 1.1
+    assert_in_delta(1.1, size.height, 0.001)
+    size.height = 2.2
+    assert_in_delta(2.2, size.height, 0.001)
+  end
+
+  def test_compatible
+    assert(!(CvSize2D32f.compatible? MySize.new))
+    MySize.class_eval { def width; end }
+    assert(!(CvSize2D32f.compatible? MySize.new))
+    MySize.class_eval { def height; end }
+    assert(CvSize2D32f.compatible? MySize.new)
+    assert(CvSize2D32f.compatible? CvSize2D32f.new)
+  end
+
+  def test_initialize
+    size = CvSize2D32f.new
+    assert_in_delta(0, size.width, 0.001)
+    assert_in_delta(0, size.height, 0.001)
+
+    size = CvSize2D32f.new(1.1, 2.2)
+    assert_in_delta(1.1, size.width, 0.001)
+    assert_in_delta(2.2, size.height, 0.001)
+
+    size = CvSize2D32f.new(CvSize2D32f.new(1.1, 2.2))
+    assert_in_delta(1.1, size.width, 0.001)
+    assert_in_delta(2.2, size.height, 0.001)
+
+    assert_raise(ArgumentError) {
+      CvSize2D32f.new('string')
+    }
+    assert_raise(ArgumentError) {
+      CvSize2D32f.new(1, 2, 3)
+    }
+  end
+
+  def test_to_s
+    size = CvSize2D32f.new(1.1, 2.2)
+    assert_equal('<OpenCV::CvSize2D32f:1.1x2.2>', size.to_s)
+  end
+
+  def test_to_ary
+    a = CvSize2D32f.new(1.1, 2.2).to_ary
+    assert_in_delta(1.1, a[0], 0.001)
+    assert_in_delta(2.2, a[1], 0.001)
+  end
+end
+