[pygobject] tests: don't depend on the order of objects returned by Gtk.Builder.get_objects(). Fixes #287

[Christoph Reiter <creiter src gnome org>]

commit b2c6ecaa9b40ff2d7080e7812b81dc75df4316fb
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Sun Jan 20 12:25:02 2019 +0100

    tests: don't depend on the order of objects returned by Gtk.Builder.get_objects(). Fixes #287
    
    With gnome master things have changed (I assume due to glib hashing changes)

 tests/test_overrides_gtk.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/tests/test_overrides_gtk.py b/tests/test_overrides_gtk.py
index 99406c63..fe98051c 100644
--- a/tests/test_overrides_gtk.py
+++ b/tests/test_overrides_gtk.py
@@ -1056,7 +1056,8 @@ class TestBuilder(unittest.TestCase):
 
         builder.connect_signals({'on_signal1': (on_signal, 1, 2),
                                  'on_signal2': on_signal})
-        obj, emitter = builder.get_objects()
+        obj = builder.get_object("foo")
+        emitter = builder.get_object("object_sig_test")
         emitter.emit("test-signal")
         assert len(args_collector) == 2
         assert args_collector[0] == (obj, 1, 2)