[libpeas] Add an assert to the test suite

[Garrett Regier <gregier src gnome org>]

commit 0bd07e7a7ff2e0e8cfba408341a5eeb708b0d0b6
Author: Garrett Regier <garrettregier gmail com>
Date:   Sun Jan 18 05:07:47 2015 -0800

    Add an assert to the test suite
    
    We do this in the rest of the test cases and it
    adds a fast failure point.

 tests/libpeas-gtk/plugin-manager-view.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/tests/libpeas-gtk/plugin-manager-view.c b/tests/libpeas-gtk/plugin-manager-view.c
index 6f48520..b7b8dca 100644
--- a/tests/libpeas-gtk/plugin-manager-view.c
+++ b/tests/libpeas-gtk/plugin-manager-view.c
@@ -143,8 +143,7 @@ test_gtk_plugin_manager_view_selection (TestFixture *fixture)
   info = peas_gtk_plugin_manager_view_get_selected_plugin (fixture->view);
   g_assert (info == NULL);
 
-  gtk_tree_model_get_iter_first (fixture->model, &iter);
-
+  g_assert (gtk_tree_model_get_iter_first (fixture->model, &iter));
   gtk_tree_selection_select_iter (fixture->selection, &iter);
 
   info = peas_gtk_plugin_manager_view_get_selected_plugin (fixture->view);