diff --git a/unittests/test_xrc.py b/unittests/test_xrc.py
index 73318b41..637e8e64 100644
--- a/unittests/test_xrc.py
+++ b/unittests/test_xrc.py
@@ -40,7 +40,7 @@ class xrc_Tests(wtc.WidgetTestCase):
         xmlres = xrc.XmlResource()
         with open(xrcFile, 'rb') as f:
             data = f.read()
-        xmlres.LoadFromString(data)
+        xmlres.LoadFromBuffer(data)
         self.checkXmlRes(xmlres)
 
     def test_xrc4(self):
@@ -91,7 +91,7 @@ class xrc_Tests(wtc.WidgetTestCase):
             def OnSize(self, evt):
                 sz = self.GetSize()
                 w, h = self.t.GetTextExtent(self.t.GetLabel())
-                self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
+                self.t.SetPosition(((sz.width-w)//2, (sz.height-h)//2))
 
 
         # this is the handler class that will create the resource item
@@ -127,7 +127,7 @@ class xrc_Tests(wtc.WidgetTestCase):
         # now load it
         xmlres = xrc.XmlResource()
         xmlres.InsertHandler( MyCustomPanelXmlHandler() )
-        success = xmlres.LoadFromString(resource)
+        success = xmlres.LoadFromBuffer(resource)
 
         f = xmlres.LoadFrame(self.frame, 'MainFrame')
         self.assertNotEqual(f, None)
@@ -178,7 +178,7 @@ class xrc_Tests(wtc.WidgetTestCase):
             def OnSize(self, evt):
                 sz = self.GetSize()
                 w, h = self.t.GetTextExtent(self.t.GetLabel())
-                self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
+                self.t.SetPosition(((sz.width-w)//2, (sz.height-h)//2))
 
 
         # this is the handler class that will create the resource item
@@ -215,7 +215,7 @@ class xrc_Tests(wtc.WidgetTestCase):
         # now load it
         xmlres = xrc.XmlResource()
         xmlres.InsertHandler( MyCustomPanelXmlHandler() )
-        success = xmlres.LoadFromString(resource)
+        success = xmlres.LoadFromBuffer(resource)
 
         f = xmlres.LoadFrame(self.frame, 'MainFrame')
         self.assertNotEqual(f, None)
@@ -246,7 +246,7 @@ class xrc_Tests(wtc.WidgetTestCase):
 
         # now load it
         xmlres = xrc.XmlResource()
-        success = xmlres.LoadFromString(resource)
+        success = xmlres.LoadFromBuffer(resource)
 
         panel = xmlres.LoadPanel(self.frame, "MyPanel")
         self.frame.SendSizeEvent()
diff --git a/unittests/xrcfactorytest.py b/unittests/xrcfactorytest.py
index 1ce34b77..5a884e52 100644
--- a/unittests/xrcfactorytest.py
+++ b/unittests/xrcfactorytest.py
@@ -31,5 +31,5 @@ class MyCustomPanel(wx.Panel):
         if hasattr(self, 't'):
             sz = self.GetSize()
             w, h = self.t.GetTextExtent(self.t.GetLabel())
-            self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2))
+            self.t.SetPosition(((sz.width-w)//2, (sz.height-h)//2))