From bee5b30275907199e284625311bcd4fa6fc3097f Mon Sep 17 00:00:00 2001
From: Guillaume Desmottes <guillaume.desmottes@collabora.co.uk>
Date: Mon, 17 Mar 2014 16:45:07 +0100
Subject: tp_list_connection_managers_async: terminate properly if there is no
 CM

Fix fdo#68892.
---
 telepathy-glib/connection-manager.c |  6 +++
 tests/dbus/Makefile.am              |  3 ++
 tests/dbus/list-cm-no-cm.c          | 88 +++++++++++++++++++++++++++++++++++++
 3 files changed, 97 insertions(+)
 create mode 100644 tests/dbus/list-cm-no-cm.c

diff --git a/telepathy-glib/connection-manager.c b/telepathy-glib/connection-manager.c
index 34b3889e0..2d7fe73f5 100644
--- a/telepathy-glib/connection-manager.c
+++ b/telepathy-glib/connection-manager.c
@@ -1918,6 +1918,12 @@ tp_list_connection_managers_got_names (TpDBusDaemon *bus_daemon,
       DEBUG ("Total of %" G_GSIZE_FORMAT " CMs to be prepared",
           list_context->cms_to_ready);
 
+      if (list_context->cms_to_ready == 0)
+        {
+          all_cms_prepared (list_context);
+          return;
+        }
+
       for (i = 0; i < list_context->cms_to_ready; i++)
         {
           TpConnectionManager *cm = g_ptr_array_index (list_context->arr, i);
diff --git a/tests/dbus/Makefile.am b/tests/dbus/Makefile.am
index 0476442c0..71f974c82 100644
--- a/tests/dbus/Makefile.am
+++ b/tests/dbus/Makefile.am
@@ -45,6 +45,7 @@ tests_list = \
     test-handle-repo \
     test-handle-set \
     test-invalidated-while-invoking-signals \
+    test-list-cm-no-cm \
     test-long-connection-name \
     test-message-mixin \
     test-params-cm \
@@ -130,6 +131,8 @@ test_cli_group_SOURCES = cli-group.c
 
 test_cm_SOURCES = cm.c
 
+test_list_cm_no_cm_SOURCES = list-cm-no-cm.c
+
 test_connection_SOURCES = connection.c
 
 test_contact_lists_SOURCES = contact-lists.c
diff --git a/tests/dbus/list-cm-no-cm.c b/tests/dbus/list-cm-no-cm.c
new file mode 100644
index 000000000..87f312ab9
--- /dev/null
+++ b/tests/dbus/list-cm-no-cm.c
@@ -0,0 +1,88 @@
+/* Feature test for https://bugs.freedesktop.org/show_bug.cgi?id=68892
+ *
+ * Copyright (C) 2014 Collabora Ltd. <http://www.collabora.co.uk/>
+ *
+ * Copying and distribution of this file, with or without modification,
+ * are permitted in any medium without royalty provided the copyright
+ * notice and this notice are preserved.
+ */
+
+#include "config.h"
+
+#include <glib/gstdio.h>
+#include <telepathy-glib/telepathy-glib.h>
+
+#include "tests/lib/util.h"
+
+typedef struct {
+  GMainLoop *mainloop;
+  TpDBusDaemon *dbus;
+  GError *error;
+} Test;
+
+static void
+setup (Test *test,
+       gconstpointer data)
+{
+  tp_debug_set_flags ("all");
+
+  test->mainloop = g_main_loop_new (NULL, FALSE);
+  test->dbus = tp_tests_dbus_daemon_dup_or_die ();
+
+  test->error = NULL;
+}
+
+static void
+teardown (Test *test,
+          gconstpointer data)
+{
+  g_clear_object (&test->dbus);
+  g_main_loop_unref (test->mainloop);
+  test->mainloop = NULL;
+}
+
+static void
+test_list_cm_no_cm (Test *test,
+    gconstpointer data)
+{
+  GAsyncResult *res = NULL;
+  GList *cms;
+
+  tp_list_connection_managers_async (test->dbus, tp_tests_result_ready_cb,
+      &res);
+  tp_tests_run_until_result (&res);
+  cms = tp_list_connection_managers_finish (res, &test->error);
+  g_assert_no_error (test->error);
+  g_assert_cmpuint (g_list_length (cms), ==, 0);
+
+  g_object_unref (res);
+  g_list_free (cms);
+}
+
+int
+main (int argc,
+      char **argv)
+{
+  gchar *dir;
+  GError *error = NULL;
+  int result;
+
+  /* This test relies on D-Bus not finding any service file so tweak
+   * TP_TESTS_SERVICES_DIR to point to an empty directory. */
+  dir = g_dir_make_tmp ("tp-glib-tests.XXXXXX", &error);
+  g_assert_no_error (error);
+  g_setenv ("TP_TESTS_SERVICES_DIR", dir, TRUE);
+
+  tp_tests_init (&argc, &argv);
+  g_test_bug_base ("http://bugs.freedesktop.org/show_bug.cgi?id=");
+
+  g_test_add ("/cm/list-cm-no-cm", Test, NULL, setup, test_list_cm_no_cm,
+      teardown);
+
+  result = tp_tests_run_with_bus ();
+
+  g_rmdir (dir);
+  g_free (dir);
+
+  return result;
+}
-- 
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