[pygobject] Revert "Fix Pango FontDescription override"

[Martin Pitt <martinpitt src gnome org>]

commit 5eca5ff2c9509ec96158fe43b29f0fd951243efe
Author: Martin Pitt <martin pitt ubuntu com>
Date:   Wed Jan 19 14:54:57 2011 +0100

    Revert "Fix Pango FontDescription override"
    
    According to
    http://library.gnome.org/devel/pango/1.28/pango-Fonts.html#pango-font-description-new
    the default constructor actually does take no arguments; we should actually fix
    the MemoryError. Add a test case for this.
    
    Remove the FIXME though, as pango_font_description_from_string() is not a
    FontDescription constructor, but a static factory method.
    
    Thanks to Paolo Borelli for pointing this out!
    
    This reverts commit 8878c57676091c08e66bc6cbe735d898cb420582.

 gi/overrides/Pango.py   |    5 ++++-
 tests/test_overrides.py |    5 +++++
 2 files changed, 9 insertions(+), 1 deletions(-)
---
diff --git a/gi/overrides/Pango.py b/gi/overrides/Pango.py
index 423e1fb..3269806 100644
--- a/gi/overrides/Pango.py
+++ b/gi/overrides/Pango.py
@@ -28,7 +28,10 @@ __all__ = []
 class FontDescription(Pango.FontDescription):
 
     def __new__(cls, string=None):
-        return Pango.font_description_from_string (string)
+        if string is not None:
+            return Pango.font_description_from_string (string)
+        else:
+            return Pango.FontDescription.__new__(cls)
 
 FontDescription = override(FontDescription)
 __all__.append('FontDescription')
diff --git a/tests/test_overrides.py b/tests/test_overrides.py
index 9fb3192..67ccf6b 100644
--- a/tests/test_overrides.py
+++ b/tests/test_overrides.py
@@ -134,9 +134,14 @@ class TestGLib(unittest.TestCase):
 
 class TestPango(unittest.TestCase):
 
+    def test_default_font_description(self):
+        desc = Pango.FontDescription()
+        self.assertEquals(desc.get_variant(), Pango.Variant.NORMAL)
+
     def test_font_description(self):
         desc = Pango.FontDescription('monospace')
         self.assertEquals(desc.get_family(), 'monospace')
+        self.assertEquals(desc.get_variant(), Pango.Variant.NORMAL)
 
     def test_layout(self):
         self.assertRaises(TypeError, Pango.Layout)