plugin-manager: Add API to unload all plugins

And add tests for it.

Signed-off-by: Evangelos Ribeiro Tzaras <devrtz@fortysixandtwo.eu>
Part-of: <https://gitlab.gnome.org/GNOME/calls/-/merge_requests/796>

src/calls-plugin-manager.c

@@ -439,3 +439,25 @@ calls_plugin_manager_get_plugin_names (CallsPluginManager *self,
 
   return (const char **) g_ptr_array_free (array, FALSE);
 }
+
+gboolean
+calls_plugin_manager_unload_all_plugins (CallsPluginManager *self, GError **error)
+{
+  GListModel *plugins;
+  uint n_plugins;
+  gboolean ok = TRUE;
+
+  g_return_val_if_fail (CALLS_IS_PLUGIN_MANAGER (self), FALSE);
+
+  plugins = G_LIST_MODEL (self->plugins);
+  n_plugins = g_list_model_get_n_items (plugins);
+
+  for (uint i = 0; i < n_plugins; i++) {
+    g_autoptr (CallsPlugin) plugin = g_list_model_get_item (plugins, i);
+
+    if (calls_plugin_is_loaded (plugin))
+      ok = ok && calls_plugin_unload (plugin, error);
+  }
+
+  return ok;
+}

src/calls-plugin-manager.h

@@ -40,6 +40,7 @@ gboolean            calls_plugin_manager_load_plugin (CallsPluginManager *self,
 gboolean            calls_plugin_manager_unload_plugin (CallsPluginManager *self,
                                                         const char         *name,
                                                         GError            **error);
+gboolean            calls_plugin_manager_unload_all_plugins (CallsPluginManager *self, GError **error);
 const char        **calls_plugin_manager_get_plugin_names (CallsPluginManager *self,
                                                            guint              *length);
 gboolean            calls_plugin_manager_has_plugin (CallsPluginManager *self,

tests/test-application.c

@@ -66,6 +66,9 @@ on_idle_quit (gpointer user_data)
   g_application_quit (app);
 
   g_assert_true (calls_plugin_manager_has_any_plugins (plugins));
+  g_assert_true (calls_plugin_manager_unload_all_plugins (plugins, &error));
+  g_assert_no_error (error);
+  g_assert_false (calls_plugin_manager_has_any_plugins (plugins));
 
   return G_SOURCE_REMOVE;
 }

tests/test-plugins.c

@@ -112,13 +112,46 @@ test_calls_plugin_loading (void)
 }
 
 
-gint
-main (gint   argc,
-      gchar *argv[])
+static void
+test_calls_plugin_unload_all (void)
+{
+  CallsPluginManager *manager = calls_plugin_manager_get_default ();
+  g_autoptr (GError) error = NULL;
+
+  g_assert_false (calls_plugin_manager_has_any_plugins (manager));
+
+  g_assert_true (calls_plugin_manager_load_plugin (manager, "dummy", &error));
+  g_assert_no_error (error);
+  g_assert_true (calls_plugin_manager_has_plugin (manager, "dummy"));
+
+  g_assert_true (calls_plugin_manager_load_plugin (manager, "mm", &error));
+  g_assert_no_error (error);
+  g_assert_true (calls_plugin_manager_has_plugin (manager, "mm"));
+
+  g_assert_true (calls_plugin_manager_load_plugin (manager, "sip", &error));
+  g_assert_no_error (error);
+  g_assert_true (calls_plugin_manager_has_plugin (manager, "sip"));
+
+  g_assert_true (calls_plugin_manager_has_any_plugins (manager));
+  g_assert_true (calls_plugin_manager_unload_all_plugins (manager, &error));
+  g_assert_no_error (error);
+  g_assert_false (calls_plugin_manager_has_plugin (manager, "dummy"));
+  g_assert_false (calls_plugin_manager_has_plugin (manager, "mm"));
+  g_assert_false (calls_plugin_manager_has_plugin (manager, "sip"));
+  g_assert_false (calls_plugin_manager_has_any_plugins (manager));
+
+  g_assert_finalize_object (manager);
+}
+
+
+int
+main (int   argc,
+      char *argv[])
 {
   g_test_init (&argc, &argv, NULL);
 
   g_test_add_func ("/Calls/Plugins/load_plugins", test_calls_plugin_loading);
+  g_test_add_func ("/Calls/Plugins/unload_all", test_calls_plugin_unload_all);
 
   return g_test_run ();
 }