[gnome-control-center] tests: Ensure generated function have a __qualname__ attribute

[Benjamin Berg <bberg src gnome org>]

commit 1ab42b4ec5e9c731391637f1ced3db2ba3c70f92
Author: Benjamin Berg <bberg redhat com>
Date:   Tue Nov 13 02:32:28 2018 +0100

    tests: Ensure generated function have a __qualname__ attribute
    
    This is solely used for filtering by unittest, however, if it is
    missing, then unittest will fail. So generate a reasonable name (which
    is unfortunately not identical to the real name of the attribute).

 tests/shared/gtest.py | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/tests/shared/gtest.py b/tests/shared/gtest.py
index 259da775e..a29eee553 100644
--- a/tests/shared/gtest.py
+++ b/tests/shared/gtest.py
@@ -34,6 +34,10 @@ class _GTestSingleProp(object):
         bound_method = self.__func.__get__(obj, cls)
         partial_method = functools.partial(bound_method, self.test)
         partial_method.__doc__ = bound_method.__doc__
+        # Set a qualified name using the qualified name of the class and
+        # function. Note that this is different from the generated attribute
+        # name as it is missing the test_%03d_ prefix.
+        partial_method.__qualname__ = '%s.%s' % (cls.__qualname__, self.test)
 
         return partial_method