[libdazzle] tests: load CSS in suggestion popover test

[Christian Hergert <chergert src gnome org>]

commit 3132dc6b0a870be2f99ecaec73d8f1eaf9d87b6f
Author: Christian Hergert <chergert redhat com>
Date:   Tue Jun 6 17:25:28 2017 -0700

    tests: load CSS in suggestion popover test

 tests/test-suggestion.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/tests/test-suggestion.c b/tests/test-suggestion.c
index 7687c1e..82df712 100644
--- a/tests/test-suggestion.c
+++ b/tests/test-suggestion.c
@@ -222,6 +222,17 @@ suggestion_activated (DzlSuggestionEntry *entry,
   gtk_entry_set_text (GTK_ENTRY (entry), uri);
 }
 
+static void
+load_css (void)
+{
+  g_autoptr(GtkCssProvider) provider = NULL;
+
+  provider = dzl_css_provider_new ("/org/gnome/dazzle/themes");
+  gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
+                                             GTK_STYLE_PROVIDER (provider),
+                                             GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+}
+
 int
 main (gint   argc,
       gchar *argv[])
@@ -235,6 +246,8 @@ main (gint   argc,
 
   gtk_init (&argc, &argv);
 
+  load_css ();
+
   search_index = dzl_fuzzy_mutable_index_new (FALSE);
 
   for (guint i = 0; i < G_N_ELEMENTS (demo_data); i++)