[gnome-desktop] tests: Add a wall clock test for 12/24h gsettings switch

[Bastien Nocera <hadess src gnome org>]

commit 2616fe3049475fc8797083d3827ae2e433cb791e
Author: Kalev Lember <kalevlember gmail com>
Date:   Tue May 20 23:00:15 2014 +0200

    tests: Add a wall clock test for 12/24h gsettings switch
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730447

 tests/wall-clock.c |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/tests/wall-clock.c b/tests/wall-clock.c
index 7e73d0e..6204909 100644
--- a/tests/wall-clock.c
+++ b/tests/wall-clock.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
+#include <gdesktop-enums.h>
 #include <glib.h>
 #define GNOME_DESKTOP_USE_UNSTABLE_API
 #include <libgnome-desktop/gnome-wall-clock.h>
@@ -66,13 +67,50 @@ test_colon_vs_ratio (void)
        setlocale (LC_ALL, save_locale);
 }
 
+static void
+test_clock_format_setting (void)
+{
+       GnomeWallClock *clock;
+       GSettings *settings;
+       const char *save_locale;
+       const char *str;
+
+       /* Save current locale */
+       save_locale = setlocale (LC_ALL, NULL);
+
+       setlocale (LC_ALL, "en_US.utf8");
+       settings = g_settings_new ("org.gnome.desktop.interface");
+
+       /* In 12h format, the string ends with AM or PM */
+       g_settings_set_enum (settings, "clock-format", G_DESKTOP_CLOCK_FORMAT_12H);
+       clock = gnome_wall_clock_new ();
+       str = gnome_wall_clock_get_clock (clock);
+       g_assert (g_str_has_suffix (str, "AM") || g_str_has_suffix (str, "PM"));
+       g_object_unref (clock);
+
+       /* After setting the 24h format, AM / PM should be gone */
+       g_settings_set_enum (settings, "clock-format", G_DESKTOP_CLOCK_FORMAT_24H);
+       clock = gnome_wall_clock_new ();
+       str = gnome_wall_clock_get_clock (clock);
+       g_assert (!g_str_has_suffix (str, "AM") && !g_str_has_suffix (str, "PM"));
+       g_object_unref (clock);
+
+       g_object_unref (settings);
+
+       /* Restore previous locale */
+       setlocale (LC_ALL, save_locale);
+}
+
 int
 main (int   argc,
       char *argv[])
 {
+       g_setenv ("GSETTINGS_BACKEND", "memory", TRUE);
+
        g_test_init (&argc, &argv, NULL);
 
        g_test_add_func ("/wall-clock/colon-vs-ratio", test_colon_vs_ratio);
+       g_test_add_func ("/wall-clock/24h-clock-format", test_clock_format_setting);
 
        return g_test_run ();
 }