[pygobject] Override Adjustment constructor to behave like pygtk

[John Palmieri <johnp src gnome org>]

commit 7924b18a99a0680c04aca46be4b64a7aa507dfe5
Author: Dmitrijs Ledkovs <dmitrij ledkov ubuntu com>
Date:   Sat Dec 4 22:13:28 2010 +0000

    Override Adjustment constructor to behave like pygtk
    
    https://bugzilla.gnome.org/show_bug.cgi?id=636486

 gi/overrides/Gtk.py     |    7 +++++++
 tests/test_overrides.py |    9 +++++++++
 2 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/gi/overrides/Gtk.py b/gi/overrides/Gtk.py
index eb9e132..0313664 100644
--- a/gi/overrides/Gtk.py
+++ b/gi/overrides/Gtk.py
@@ -1072,6 +1072,13 @@ class Label(Gtk.Label):
 Label = override(Label)
 __all__.append('Label')
 
+class Adjustment(Gtk.Adjustment):
+    def __init__(self, value=None, lower=None, upper=None, step_increment=None, page_increment=None, page_size=None, **kwds):
+        Gtk.Adjustment.__init__(self, value=value, lower=lower, upper=upper, step_increment=step_increment, page_increment=page_increment, page_size=page_size, **kwds)
+
+Adjustment = override(Adjustment)
+__all__.append('Adjustment')
+
 class Table(Gtk.Table, Container):
     def __init__(self, rows=1, columns=1, homogeneous=False, **kwds):
         Gtk.Table.__init__(self, n_rows=rows, n_columns=columns, homogeneous=homogeneous, **kwds)
diff --git a/tests/test_overrides.py b/tests/test_overrides.py
index 0e2d976..95c14f6 100644
--- a/tests/test_overrides.py
+++ b/tests/test_overrides.py
@@ -784,6 +784,15 @@ class TestGtk(unittest.TestCase):
         label = Gtk.Label('Hello')
         self.assertEquals(label.get_text(), 'Hello')
 
+    def test_adjustment(self):
+        adjustment = Gtk.Adjustment(1, 0, 3, 4, 5, 6)
+        self.assertEquals(adjustment.get_value(),1)
+        self.assertEquals(adjustment.get_lower(),0)
+        self.assertEquals(adjustment.get_upper(),3)
+        self.assertEquals(adjustment.get_step_increment(),4)
+        self.assertEquals(adjustment.get_page_increment(),5)
+        self.assertEquals(adjustment.get_page_size(),6)
+
     def test_table(self):
         table = Gtk.Table()
         self.assertEquals(table.get_size(), (1,1))