appinfo: Add some testcases for searching

https://bugzilla.gnome.org/show_bug.cgi?id=711557

gio/tests/apps.c

@@ -0,0 +1,58 @@
+#include <gio/gio.h>
+#include <gio/gdesktopappinfo.h>
+#include <locale.h>
+
+static void
+print (const gchar *str)
+{
+  g_print ("%s\n", str ? str : "nil");
+}
+
+int
+main (int argc, char **argv)
+{
+  setlocale (LC_ALL, "");
+
+  if (argv[1] == NULL)
+    ;
+  else if (g_str_equal (argv[1], "list"))
+    {
+      GList *all, *i;
+
+      all = g_app_info_get_all ();
+      for (i = all; i; i = i->next)
+        g_print ("%s%s", g_app_info_get_id (i->data), i->next ? " " : "\n");
+      g_list_free_full (all, g_object_unref);
+    }
+  else if (g_str_equal (argv[1], "search"))
+    {
+      gchar ***results;
+      gint i, j;
+
+      results = g_desktop_app_info_search (argv[2]);
+      for (i = 0; results[i]; i++)
+        {
+          for (j = 0; results[i][j]; j++)
+            g_print ("%s%s", j ? " " : "", results[i][j]);
+          g_print ("\n");
+          g_strfreev (results[i]);
+        }
+      g_free (results);
+    }
+  else if (g_str_equal (argv[1], "show-info"))
+    {
+      GAppInfo *info;
+
+      info = (GAppInfo *) g_desktop_app_info_new (argv[2]);
+      if (info)
+        {
+          print (g_app_info_get_id (info));
+          print (g_app_info_get_name (info));
+          print (g_app_info_get_display_name (info));
+          print (g_app_info_get_description (info));
+          g_object_unref (info);
+        }
+    }
+
+  return 0;
+}