diff --git a/src/mainscreen.py b/src/mainscreen.py
index d014a04..5ec6bac 100644
--- a/src/mainscreen.py
+++ b/src/mainscreen.py
@@ -44,6 +44,7 @@ class MainWindow(QtGui.QMainWindow):
         self.menuSettings.addAction(self.actionNotifications)
         self.menuSettings.addAction(self.actionNetwork)
         self.menuAbout.addAction(self.actionAbout_program)
+        self.actionAbout_program.triggered.connect(self.about_program)
         self.menubar.addAction(self.menuProfile.menuAction())
         self.menubar.addAction(self.menuSettings.menuAction())
         self.menubar.addAction(self.menuAbout.menuAction())
@@ -61,6 +62,13 @@ class MainWindow(QtGui.QMainWindow):
         self.actionSettings.setText(QtGui.QApplication.translate("MainWindow", "Settings", None, QtGui.QApplication.UnicodeUTF8))
         QtCore.QMetaObject.connectSlotsByName(MainWindow)
 
+    def about_program(self):
+        import util
+        msgBox = QtGui.QMessageBox()
+        msgBox.setWindowTitle("About")
+        msgBox.setText("Toxygen is pythonic Tox client. Version: " + util.program_version)
+        msgBox.exec_()
+
     def setup_right_bottom(self, Form):
         Form.setObjectName("right_bottom")
         Form.resize(500, 150)
diff --git a/src/util.py b/src/util.py
index a7ff2e8..8b5928c 100644
--- a/src/util.py
+++ b/src/util.py
@@ -1,12 +1,15 @@
 
 
+program_version = '0.0.1 (alpha)'
+
+
 def log(data):
-    with open("logs.log", "a") as fl:
+    with open('logs.log', 'a') as fl:
         fl.write(str(data))
 
 
 def string_to_bin(tox_id):
-    return tox_id.decode("hex")
+    return tox_id.decode('hex')
 
 
 def bin_to_string(raw_id):
diff --git a/tests/tests.py b/tests/tests.py
index 806527c..1e44e1e 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -1,7 +1,7 @@
 from src.settings import Settings
-from src.tox import Tox
 from src.util import bin_to_string, string_to_bin
 import sys
+from src.bootstrap import node_generator
 from src.profile import Profile
 import os
 
@@ -18,7 +18,7 @@ class TestSettings():
         os.remove(path)
         Settings()
         assert os.path.exists(path)
-        
+
 
 class TestProfile():
 
@@ -44,3 +44,14 @@ class TestUtils():
         data = string_to_bin(id)
         new_id = bin_to_string(data)
         assert id == new_id
+
+
+class TestNodeGen():
+
+    def test_generator(self):
+        for elem in node_generator():
+            assert len(elem) == 3
+
+    def test_ports(self):
+        for elem in node_generator():
+            assert elem[1] in [33445, 443, 5190, 2306, 1813]