[glib] Add a GAppInfoMonitor test

[Matthias Clasen <matthiasc src gnome org>]

commit bd932aa9f8605a3823bc32428cccb334dc1f5ee0
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 28 00:19:19 2013 -0500

    Add a GAppInfoMonitor test
    
    The test reveals that there's something fishy with this monitor.
    One has to call g_app_info_get_all() for it to start working,
    and then it only works once.

 gio/tests/Makefile.am  |    1 +
 gio/tests/appmonitor.c |  114 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+), 0 deletions(-)
---
diff --git a/gio/tests/Makefile.am b/gio/tests/Makefile.am
index 49aac1b..47096df 100644
--- a/gio/tests/Makefile.am
+++ b/gio/tests/Makefile.am
@@ -20,6 +20,7 @@ AM_CFLAGS = $(GLIB_WARN_CFLAGS)
 #  Test programs buildable on all platforms
 
 test_programs = \
+       appmonitor                              \
        async-close-output-stream               \
        async-splice-output-stream              \
        buffered-input-stream                   \
diff --git a/gio/tests/appmonitor.c b/gio/tests/appmonitor.c
new file mode 100644
index 0000000..4ea9b7c
--- /dev/null
+++ b/gio/tests/appmonitor.c
@@ -0,0 +1,114 @@
+#include <gio/gio.h>
+#include <gstdio.h>
+
+static gboolean
+create_app (gpointer data)
+{
+  const gchar *path = data;
+  gchar *file;
+  GError *error = NULL;
+  const gchar *contents = 
+    "[Desktop Entry]\n"
+    "Name=Application\n"
+    "Version=1.0\n"
+    "Type=Application\n"
+    "Exec=true\n";
+
+  file = g_build_filename (path, "app.desktop", NULL);
+
+  g_file_set_contents (file, contents, -1, &error);
+  g_assert_no_error (error);
+
+  g_free (file);
+
+  return G_SOURCE_REMOVE;
+}
+
+static gboolean
+delete_app (gpointer data)
+{
+  const gchar *path = data;
+  gchar *file;
+
+  file = g_build_filename (path, "app.desktop", NULL);
+
+  g_remove (file);
+
+  g_free (file);
+
+  return G_SOURCE_REMOVE;
+}
+
+static gboolean changed_fired;
+
+static void
+changed_cb (GAppInfoMonitor *monitor, GMainLoop *loop)
+{
+  changed_fired = TRUE;
+  g_main_loop_quit (loop);
+}
+
+static gboolean
+quit_loop (gpointer data)
+{
+  GMainLoop *loop = data;
+
+  g_main_loop_quit (loop);
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+test_app_monitor (void)
+{
+  gchar *path;
+  GAppInfoMonitor *monitor;
+  GMainLoop *loop;
+
+  path = g_build_filename (g_get_user_data_dir (), "applications", NULL);
+  g_mkdir (path, 0755);
+
+  /* FIXME: this shouldn't be required */
+  g_list_free_full (g_app_info_get_all (), g_object_unref);
+
+  monitor = g_app_info_monitor_get ();
+  loop = g_main_loop_new (NULL, FALSE);
+
+  g_signal_connect (monitor, "changed", G_CALLBACK (changed_cb), loop);
+
+  g_idle_add (create_app, path);
+  g_timeout_add_seconds (3, quit_loop, loop);
+
+  g_main_loop_run (loop);
+  g_assert (changed_fired);
+  changed_fired = FALSE;
+
+  /* FIXME: this shouldn't be required */
+  g_list_free_full (g_app_info_get_all (), g_object_unref);
+
+  g_idle_add (delete_app, path);
+  g_timeout_add_seconds (3, quit_loop, loop);
+
+  g_main_loop_run (loop);
+  g_assert (changed_fired);
+
+  g_main_loop_unref (loop);
+
+  g_object_unref (monitor);
+  g_free (path);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gchar *path;
+
+  path = g_mkdtemp (g_strdup ("app_monitor_XXXXXX"));
+  g_setenv ("XDG_DATA_HOME", path, TRUE);
+
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/monitor/app", test_app_monitor);
+
+  return g_test_run ();
+}