tested Trackbar

ext/opencv/trackbar.cpp

@@ -48,18 +48,13 @@ void define_ruby_class(){
 
 VALUE rb_allocate(VALUE klass) {
   Trackbar *ptr;
-  return Data_Make_Struct(klass, Trackbar, mark, free, ptr);
+  return Data_Make_Struct(klass, Trackbar, trackbar_mark, 0, ptr);
 }
 
-void mark(void *ptr){
+void trackbar_mark(void *ptr) {
   rb_gc_mark(((Trackbar*)ptr)->block);
 }
 
-void free(void *ptr){
-  //::free(((Trackbar*)ptr)->name);
-  ::free(ptr);
-}
-
 /*
  * call-seq:
  *   new(<i>name,maxval[,val],&block</i>)
@@ -73,7 +68,8 @@ void free(void *ptr){
 VALUE rb_initialize(int argc, VALUE *argv, VALUE self) {
   VALUE name, maxval, val, block;
   rb_scan_args(argc, argv, "21&", &name, &maxval, &val, &block);
-  if(NIL_P(block)){rb_raise(rb_eArgError, "block not given.");}
+  if (NIL_P(block))
+    rb_raise(rb_eArgError, "block not given.");
   Check_Type(name, T_STRING);
   Trackbar *trackbar = TRACKBAR(self);
   trackbar->name = strcpy(ALLOC_N(char, RSTRING_LEN(name)), StringValueCStr(name));

ext/opencv/trackbar.h

@@ -38,8 +38,7 @@ VALUE rb_class();
 void define_ruby_class();
 VALUE rb_allocate(VALUE klass);
 
-void mark(void *ptr);
-void free(void *ptr);
+void trackbar_mark(void *ptr);
 
 VALUE rb_initialize(int argc, VALUE *argv, VALUE self);
 VALUE rb_name(VALUE self);

test/test_trackbar.rb

@@ -0,0 +1,47 @@
+#!/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
+include GUI
+
+# Tests for OpenCV::Trackbar
+class TestTrackbar < OpenCVTestCase
+  def setup
+    @trackbar1 = Trackbar.new('trackbar1', 100) {}
+    @trackbar2 = Trackbar.new('trackbar1', 100, 1) {}
+  end
+  
+  def test_initialize
+    assert_not_nil(Trackbar.new('trackbar', 100, 1) {})
+    assert_not_nil(Trackbar.new('trackbar', 100) {})
+    block = proc {}
+    assert_not_nil(Trackbar.new('trackbar', 100, 1, &block))
+    assert_not_nil(Trackbar.new('trackbar', 100, &block))
+
+    assert_raise(TypeError) {
+      Trackbar.new(123, 100, 1) {}
+    }
+    assert_raise(ArgumentError) {
+      Trackbar.new('trackbar', 100, 1)
+    }
+  end
+
+  def test_name
+    assert_equal('trackbar1', @trackbar1.name)
+  end
+
+  def test_max
+    assert_equal(100, @trackbar1.max)
+  end
+
+  def test_value
+    assert_equal(0, @trackbar1.value)
+    assert_equal(1, @trackbar2.value)
+    @trackbar1.value = 50
+    assert_equal(50, @trackbar1.value)
+  end
+end
+