diff --git a/src/main.cpp b/src/main.cpp
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,5 +1,5 @@
 /*
-  Copyright © 2015 Hasan Yavuz Özderya
+  Copyright © 2017 Hasan Yavuz Özderya
 
   This file is part of serialplot.
 
@@ -24,16 +24,6 @@
 #include "tooltipfilter.h"
 #include "version.h"
 
-// test code
-#include <QTableView>
-#include <QSpinBox>
-#include <QColorDialog>
-#include "channelinfomodel.h"
-#include "utils.h"
-
-#include "color_selector.hpp"
-#include "color_dialog.hpp"
-
 MainWindow* pMainWindow;
 
 void messageHandler(QtMsgType type, const QMessageLogContext &context,
@@ -60,43 +50,5 @@ int main(int argc, char *argv[])
 
     w.show();
 
-    // test code
-    ChannelInfoModel cim(2, &a);
-    QTableView tv;
-    QSpinBox cb;
-
-    QObject::connect(&cb, SELECT<int>::OVERLOAD_OF(&QSpinBox::valueChanged), [&cim](int value)
-                     {
-                         cim.setNumOfChannels(value);
-                     });
-
-    tv.setModel(&cim);
-
-    tv.show();
-    // cb.show();
-
-    cim.setNumOfChannels(3);
-    cim.setNumOfChannels(7);
-    cim.setNumOfChannels(10);
-
-
-    color_widgets::ColorSelector cpicker;
-    cpicker.setColor(QColor("red"));
-    cpicker.show();
-
-    QObject::connect(tv.selectionModel(), &QItemSelectionModel::currentRowChanged,
-                     [&cim, &cpicker](const QModelIndex &current, const QModelIndex &previous)
-                     {
-                         cpicker.setColor(cim.data(current, Qt::ForegroundRole).value<QColor>());
-                     });
-
-    QObject::connect(&cpicker, &color_widgets::ColorSelector::colorChanged,
-                     [&cim, &tv](QColor color)
-                     {
-                         auto index = tv.selectionModel()->currentIndex();
-                         index = index.sibling(index.row(), 0);
-                         cim.setData(index, color, Qt::ForegroundRole);
-                     });
-
     return a.exec();
 }