lib: introduce bt_message_iterator_class
[babeltrace.git] / tests / lib / test_graph_topo.c
index 580648b24f053863bd4f26d21f66b6c4721ddf58..d3d45818d224531517935b4318aa328549c6e9da 100644 (file)
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include <babeltrace/ref.h>
-#include <babeltrace/graph/component-class.h>
-#include <babeltrace/graph/component-class-source.h>
-#include <babeltrace/graph/component-class-sink.h>
-#include <babeltrace/graph/component.h>
-#include <babeltrace/graph/component-source.h>
-#include <babeltrace/graph/component-sink.h>
-#include <babeltrace/graph/graph.h>
-#include <babeltrace/graph/connection.h>
-#include <babeltrace/graph/port.h>
-#include <babeltrace/graph/private-component.h>
-#include <babeltrace/graph/private-component-source.h>
-#include <babeltrace/graph/private-component-sink.h>
-#include <babeltrace/graph/private-port.h>
-#include <babeltrace/graph/private-connection.h>
+#include <babeltrace2/babeltrace.h>
+#include "common/assert.h"
 #include <stdlib.h>
 #include <string.h>
 #include <stdbool.h>
-#include <assert.h>
 #include <glib.h>
 
 #include "tap/tap.h"
 
-#define NR_TESTS       77
+#define NR_TESTS       26
 
 enum event_type {
-       COMP_ACCEPT_PORT_CONNECTION,
-       COMP_PORT_CONNECTED,
-       COMP_PORT_DISCONNECTED,
-       GRAPH_PORT_ADDED,
-       GRAPH_PORT_REMOVED,
-       GRAPH_PORTS_CONNECTED,
-       GRAPH_PORTS_DISCONNECTED,
+       SRC_COMP_OUTPUT_PORT_CONNECTED,
+       SINK_COMP_INPUT_PORT_CONNECTED,
+       GRAPH_SRC_OUTPUT_PORT_ADDED,
+       GRAPH_SINK_INPUT_PORT_ADDED,
 };
 
 enum test {
        TEST_EMPTY_GRAPH,
        TEST_SIMPLE,
+       TEST_SRC_PORT_CONNECTED_ERROR,
+       TEST_SINK_PORT_CONNECTED_ERROR,
        TEST_SRC_ADDS_PORT_IN_PORT_CONNECTED,
-       TEST_SINK_REMOVES_PORT_IN_CONSUME,
-       TEST_SINK_REMOVES_PORT_IN_CONSUME_THEN_SRC_REMOVES_DISCONNECTED_PORT,
 };
 
 struct event {
@@ -65,52 +48,33 @@ struct event {
 
        union {
                struct {
-                       struct bt_component *comp;
-                       struct bt_port *self_port;
-                       struct bt_port *other_port;
-               } comp_accept_port_connection;
+                       const bt_component *comp;
+                       const bt_port *self_port;
+                       const bt_port *other_port;
+               } src_comp_output_port_connected;
 
                struct {
-                       struct bt_component *comp;
-                       struct bt_port *self_port;
-                       struct bt_port *other_port;
-               } comp_port_connected;
+                       const bt_component *comp;
+                       const bt_port *self_port;
+                       const bt_port *other_port;
+               } sink_comp_input_port_connected;
 
                struct {
-                       struct bt_component *comp;
-                       struct bt_port *port;
-               } comp_port_disconnected;
+                       const bt_component *comp;
+                       const bt_port *port;
+               } graph_src_output_port_added;
 
                struct {
-                       struct bt_component *comp;
-                       struct bt_port *port;
-               } graph_port_added;
-
-               struct {
-                       struct bt_component *comp;
-                       struct bt_port *port;
-               } graph_port_removed;
-
-               struct {
-                       struct bt_component *upstream_comp;
-                       struct bt_component *downstream_comp;
-                       struct bt_port *upstream_port;
-                       struct bt_port *downstream_port;
-                       struct bt_connection *conn;
-               } graph_ports_connected;
-
-               struct {
-                       struct bt_component *upstream_comp;
-                       struct bt_component *downstream_comp;
-                       struct bt_port *upstream_port;
-                       struct bt_port *downstream_port;
-               } graph_ports_disconnected;
+                       const bt_component *comp;
+                       const bt_port *port;
+               } graph_sink_input_port_added;
        } data;
 };
 
 static GArray *events;
-static struct bt_component_class *src_comp_class;
-static struct bt_component_class *sink_comp_class;
+static bt_message_iterator_class *msg_iter_class;
+static bt_component_class_source *src_comp_class;
+static bt_component_class_sink *sink_comp_class;
 static enum test current_test;
 
 static
@@ -133,115 +97,57 @@ bool compare_events(struct event *ev_a, struct event *ev_b)
        }
 
        switch (ev_a->type) {
-               case COMP_ACCEPT_PORT_CONNECTION:
-                       if (ev_a->data.comp_accept_port_connection.comp !=
-                                       ev_b->data.comp_accept_port_connection.comp) {
-                               return false;
-                       }
-
-                       if (ev_a->data.comp_accept_port_connection.self_port !=
-                                       ev_b->data.comp_accept_port_connection.self_port) {
-                               return false;
-                       }
-
-                       if (ev_a->data.comp_accept_port_connection.other_port !=
-                                       ev_b->data.comp_accept_port_connection.other_port) {
-                               return false;
-                       }
-                       break;
-               case COMP_PORT_CONNECTED:
-                       if (ev_a->data.comp_port_connected.comp !=
-                                       ev_b->data.comp_port_connected.comp) {
+               case SRC_COMP_OUTPUT_PORT_CONNECTED:
+                       if (ev_a->data.src_comp_output_port_connected.comp !=
+                                       ev_b->data.src_comp_output_port_connected.comp) {
                                return false;
                        }
 
-                       if (ev_a->data.comp_port_connected.self_port !=
-                                       ev_b->data.comp_port_connected.self_port) {
+                       if (ev_a->data.src_comp_output_port_connected.self_port !=
+                                       ev_b->data.src_comp_output_port_connected.self_port) {
                                return false;
                        }
 
-                       if (ev_a->data.comp_port_connected.other_port !=
-                                       ev_b->data.comp_port_connected.other_port) {
+                       if (ev_a->data.src_comp_output_port_connected.other_port !=
+                                       ev_b->data.src_comp_output_port_connected.other_port) {
                                return false;
                        }
                        break;
-               case COMP_PORT_DISCONNECTED:
-                       if (ev_a->data.comp_port_disconnected.comp !=
-                                       ev_b->data.comp_port_disconnected.comp) {
+               case SINK_COMP_INPUT_PORT_CONNECTED:
+                       if (ev_a->data.sink_comp_input_port_connected.comp !=
+                                       ev_b->data.sink_comp_input_port_connected.comp) {
                                return false;
                        }
 
-                       if (ev_a->data.comp_port_disconnected.port !=
-                                       ev_b->data.comp_port_disconnected.port) {
-                               return false;
-                       }
-                       break;
-               case GRAPH_PORT_ADDED:
-                       if (ev_a->data.graph_port_added.comp !=
-                                       ev_b->data.graph_port_added.comp) {
+                       if (ev_a->data.sink_comp_input_port_connected.self_port !=
+                                       ev_b->data.sink_comp_input_port_connected.self_port) {
                                return false;
                        }
 
-                       if (ev_a->data.graph_port_added.port !=
-                                       ev_b->data.graph_port_added.port) {
+                       if (ev_a->data.sink_comp_input_port_connected.other_port !=
+                                       ev_b->data.sink_comp_input_port_connected.other_port) {
                                return false;
                        }
                        break;
-               case GRAPH_PORT_REMOVED:
-                       if (ev_a->data.graph_port_removed.comp !=
-                                       ev_b->data.graph_port_removed.comp) {
+               case GRAPH_SRC_OUTPUT_PORT_ADDED:
+                       if (ev_a->data.graph_src_output_port_added.comp !=
+                                       ev_b->data.graph_src_output_port_added.comp) {
                                return false;
                        }
 
-                       if (ev_a->data.graph_port_removed.port !=
-                                       ev_b->data.graph_port_removed.port) {
+                       if (ev_a->data.graph_src_output_port_added.port !=
+                                       ev_b->data.graph_src_output_port_added.port) {
                                return false;
                        }
                        break;
-               case GRAPH_PORTS_CONNECTED:
-                       if (ev_a->data.graph_ports_connected.upstream_comp !=
-                                       ev_b->data.graph_ports_connected.upstream_comp) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_connected.downstream_comp !=
-                                       ev_b->data.graph_ports_connected.downstream_comp) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_connected.upstream_port !=
-                                       ev_b->data.graph_ports_connected.upstream_port) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_connected.downstream_port !=
-                                       ev_b->data.graph_ports_connected.downstream_port) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_connected.conn !=
-                                       ev_b->data.graph_ports_connected.conn) {
-                               return false;
-                       }
-                       break;
-               case GRAPH_PORTS_DISCONNECTED:
-                       if (ev_a->data.graph_ports_disconnected.upstream_comp !=
-                                       ev_b->data.graph_ports_disconnected.upstream_comp) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_disconnected.downstream_comp !=
-                                       ev_b->data.graph_ports_disconnected.downstream_comp) {
-                               return false;
-                       }
-
-                       if (ev_a->data.graph_ports_disconnected.upstream_port !=
-                                       ev_b->data.graph_ports_disconnected.upstream_port) {
+               case GRAPH_SINK_INPUT_PORT_ADDED:
+                       if (ev_a->data.graph_sink_input_port_added.comp !=
+                                       ev_b->data.graph_sink_input_port_added.comp) {
                                return false;
                        }
 
-                       if (ev_a->data.graph_ports_disconnected.downstream_port !=
-                                       ev_b->data.graph_ports_disconnected.downstream_port) {
+                       if (ev_a->data.graph_sink_input_port_added.port !=
+                                       ev_b->data.graph_sink_input_port_added.port) {
                                return false;
                        }
                        break;
@@ -285,262 +191,148 @@ size_t event_pos(struct event *event)
 }
 
 static
-struct bt_notification_iterator_next_method_return src_iter_next(
-               struct bt_private_connection_private_notification_iterator *priv_iterator)
+bt_message_iterator_class_next_method_status src_iter_next(
+               bt_self_message_iterator *self_iterator,
+               bt_message_array_const msgs, uint64_t capacity,
+               uint64_t *count)
 {
-       struct bt_notification_iterator_next_method_return ret = {
-               .status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR,
-       };
-
-       return ret;
+       return BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_ERROR;
 }
 
 static
-enum bt_component_status accept_port_connection(
-               struct bt_private_component *private_component,
-               struct bt_private_port *self_private_port,
-               struct bt_port *other_port)
-{
-       struct event event = {
-               .type = COMP_ACCEPT_PORT_CONNECTION,
-               .data.comp_accept_port_connection = {
-                       .comp = bt_component_from_private_component(private_component),
-                       .self_port = bt_port_from_private_port(self_private_port),
-                       .other_port = other_port,
-               },
-       };
-
-       bt_put(event.data.comp_accept_port_connection.comp);
-       bt_put(event.data.comp_accept_port_connection.self_port);
-       append_event(&event);
-       return BT_COMPONENT_STATUS_OK;
-}
-
-static
-void src_port_connected(struct bt_private_component *private_component,
-               struct bt_private_port *self_private_port,
-               struct bt_port *other_port)
+bt_component_class_port_connected_method_status src_output_port_connected(
+               bt_self_component_source *self_comp,
+               bt_self_component_port_output *self_comp_port,
+               const bt_port_input *other_port)
 {
        int ret;
-
        struct event event = {
-               .type = COMP_PORT_CONNECTED,
-               .data.comp_port_connected = {
-                       .comp = bt_component_from_private_component(private_component),
-                       .self_port = bt_port_from_private_port(self_private_port),
-                       .other_port = other_port,
+               .type = SRC_COMP_OUTPUT_PORT_CONNECTED,
+               .data.src_comp_output_port_connected = {
+                       .comp = bt_self_component_as_component(
+                               bt_self_component_source_as_self_component(
+                                       self_comp)),
+                       .self_port = bt_self_component_port_as_port(
+                               bt_self_component_port_output_as_self_component_port(
+                                       self_comp_port)),
+                       .other_port = bt_port_input_as_port_const(other_port),
                },
        };
 
-       bt_put(event.data.comp_port_connected.comp);
-       bt_put(event.data.comp_port_connected.self_port);
        append_event(&event);
 
        switch (current_test) {
        case TEST_SRC_ADDS_PORT_IN_PORT_CONNECTED:
-               ret = bt_private_component_source_add_output_private_port(
-                       private_component, "hello", NULL, NULL);
-               assert(ret == 0);
+               ret = bt_self_component_source_add_output_port(
+                       self_comp, "hello", NULL, NULL);
+               BT_ASSERT(ret == 0);
                break;
+       case TEST_SRC_PORT_CONNECTED_ERROR:
+               return BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_ERROR;
        default:
                break;
        }
+
+       return BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_OK;
 }
 
 static
-void src_port_disconnected(struct bt_private_component *private_component,
-               struct bt_private_port *private_port)
+bt_component_class_port_connected_method_status sink_input_port_connected(
+               bt_self_component_sink *self_comp,
+               bt_self_component_port_input *self_comp_port,
+               const bt_port_output *other_port)
 {
-       int ret;
        struct event event = {
-               .type = COMP_PORT_DISCONNECTED,
-               .data.comp_port_disconnected = {
-                       .comp = bt_component_from_private_component(private_component),
-                       .port = bt_port_from_private_port(private_port),
+               .type = SINK_COMP_INPUT_PORT_CONNECTED,
+               .data.sink_comp_input_port_connected = {
+                       .comp = bt_self_component_as_component(
+                               bt_self_component_sink_as_self_component(
+                                       self_comp)),
+                       .self_port = bt_self_component_port_as_port(
+                               bt_self_component_port_input_as_self_component_port(
+                                       self_comp_port)),
+                       .other_port = bt_port_output_as_port_const(other_port),
                },
        };
 
-       bt_put(event.data.comp_port_disconnected.comp);
-       bt_put(event.data.comp_port_disconnected.port);
        append_event(&event);
 
-       switch (current_test) {
-       case TEST_SINK_REMOVES_PORT_IN_CONSUME_THEN_SRC_REMOVES_DISCONNECTED_PORT:
-               ret = bt_private_port_remove_from_component(private_port);
-               assert(ret == 0);
-       default:
-               break;
+       if (current_test == TEST_SINK_PORT_CONNECTED_ERROR) {
+               return BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_ERROR;
+       } else {
+               return BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_OK;
        }
 }
 
 static
-enum bt_component_status src_init(struct bt_private_component *priv_comp,
-       struct bt_value *params, void *init_method_data)
-{
-       int ret;
-
-       ret = bt_private_component_source_add_output_private_port(
-               priv_comp, "out", NULL, NULL);
-       assert(ret == 0);
-       return BT_COMPONENT_STATUS_OK;
-}
-
-static
-enum bt_component_status sink_consume(
-               struct bt_private_component *priv_component)
+bt_component_class_initialize_method_status src_init(
+       bt_self_component_source *self_comp,
+       bt_self_component_source_configuration *config,
+       const bt_value *params, void *init_method_data)
 {
-       struct bt_private_port *def_port;
        int ret;
 
-       switch (current_test) {
-       case TEST_SINK_REMOVES_PORT_IN_CONSUME:
-       case TEST_SINK_REMOVES_PORT_IN_CONSUME_THEN_SRC_REMOVES_DISCONNECTED_PORT:
-               def_port = bt_private_component_sink_get_input_private_port_by_name(
-                       priv_component, "in");
-               assert(def_port);
-               ret = bt_private_port_remove_from_component(def_port);
-               assert(ret == 0);
-               bt_put(def_port);
-               break;
-       default:
-               break;
-       }
-
-       return BT_COMPONENT_STATUS_OK;
-}
-
-static
-void sink_port_connected(struct bt_private_component *private_component,
-               struct bt_private_port *self_private_port,
-               struct bt_port *other_port)
-{
-       struct event event = {
-               .type = COMP_PORT_CONNECTED,
-               .data.comp_port_connected = {
-                       .comp = bt_component_from_private_component(private_component),
-                       .self_port = bt_port_from_private_port(self_private_port),
-                       .other_port = other_port,
-               },
-       };
-
-       bt_put(event.data.comp_port_connected.comp);
-       bt_put(event.data.comp_port_connected.self_port);
-       append_event(&event);
-}
-
-static
-void sink_port_disconnected(struct bt_private_component *private_component,
-               struct bt_private_port *private_port)
-{
-       struct event event = {
-               .type = COMP_PORT_DISCONNECTED,
-               .data.comp_port_disconnected = {
-                       .comp = bt_component_from_private_component(private_component),
-                       .port = bt_port_from_private_port(private_port),
-               },
-       };
-
-       bt_put(event.data.comp_port_disconnected.comp);
-       bt_put(event.data.comp_port_disconnected.port);
-       append_event(&event);
+       ret = bt_self_component_source_add_output_port(
+               self_comp, "out", NULL, NULL);
+       BT_ASSERT(ret == 0);
+       return BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_OK;
 }
 
 static
-enum bt_component_status sink_init(struct bt_private_component *priv_comp,
-       struct bt_value *params, void *init_method_data)
+bt_component_class_initialize_method_status sink_init(
+       bt_self_component_sink *self_comp,
+       bt_self_component_sink_configuration *config,
+       const bt_value *params, void *init_method_data)
 {
        int ret;
 
-       ret = bt_private_component_sink_add_input_private_port(priv_comp,
+       ret = bt_self_component_sink_add_input_port(self_comp,
                "in", NULL, NULL);
-       assert(ret == 0);
-       return BT_COMPONENT_STATUS_OK;
+       BT_ASSERT(ret == 0);
+       return BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_OK;
 }
 
 static
-void graph_port_added(struct bt_port *port,
-               void *data)
+bt_component_class_sink_consume_method_status sink_consume(
+               bt_self_component_sink *self_comp)
 {
-       struct bt_component *comp = bt_port_get_component(port);
-
-       assert(comp);
-       bt_put(comp);
-
-       struct event event = {
-               .type = GRAPH_PORT_ADDED,
-               .data.graph_port_added = {
-                       .comp = comp,
-                       .port = port,
-               },
-       };
-
-       append_event(&event);
+       return BT_COMPONENT_CLASS_SINK_CONSUME_METHOD_STATUS_OK;
 }
 
 static
-void graph_port_removed(struct bt_component *component,
-               struct bt_port *port, void *data)
+bt_graph_listener_func_status graph_src_output_port_added(
+               const bt_component_source *comp, const bt_port_output *port,
+               void *data)
 {
        struct event event = {
-               .type = GRAPH_PORT_REMOVED,
-               .data.graph_port_removed = {
-                       .comp = component,
-                       .port = port,
+               .type = GRAPH_SRC_OUTPUT_PORT_ADDED,
+               .data.graph_src_output_port_added = {
+                       .comp = bt_component_source_as_component_const(comp),
+                       .port = bt_port_output_as_port_const(port),
                },
        };
 
        append_event(&event);
-}
 
-static
-void graph_ports_connected(struct bt_port *upstream_port,
-               struct bt_port *downstream_port, void *data)
-{
-       struct bt_component *upstream_comp =
-               bt_port_get_component(upstream_port);
-       struct bt_component *downstream_comp =
-               bt_port_get_component(downstream_port);
-       struct bt_connection *conn = bt_port_get_connection(upstream_port);
-
-       assert(upstream_comp);
-       assert(downstream_comp);
-       assert(conn);
-       bt_put(upstream_comp);
-       bt_put(downstream_comp);
-       bt_put(conn);
-
-       struct event event = {
-               .type = GRAPH_PORTS_CONNECTED,
-               .data.graph_ports_connected = {
-                       .upstream_comp = upstream_comp,
-                       .downstream_comp = downstream_comp,
-                       .upstream_port = upstream_port,
-                       .downstream_port = downstream_port,
-                       .conn = conn,
-               },
-       };
-
-       append_event(&event);
+       return BT_GRAPH_LISTENER_FUNC_STATUS_OK;
 }
 
 static
-void graph_ports_disconnected(
-               struct bt_component *upstream_comp,
-               struct bt_component *downstream_comp,
-               struct bt_port *upstream_port, struct bt_port *downstream_port,
+bt_graph_listener_func_status graph_sink_input_port_added(
+               const bt_component_sink *comp, const bt_port_input *port,
                void *data)
 {
        struct event event = {
-               .type = GRAPH_PORTS_DISCONNECTED,
-               .data.graph_ports_disconnected = {
-                       .upstream_comp = upstream_comp,
-                       .downstream_comp = downstream_comp,
-                       .upstream_port = upstream_port,
-                       .downstream_port = downstream_port,
+               .type = GRAPH_SINK_INPUT_PORT_ADDED,
+               .data.graph_sink_input_port_added = {
+                       .comp = bt_component_sink_as_component_const(comp),
+                       .port = bt_port_input_as_port_const(port),
                },
        };
 
        append_event(&event);
+
+       return BT_GRAPH_LISTENER_FUNC_STATUS_OK;
 }
 
 static
@@ -548,89 +340,76 @@ void init_test(void)
 {
        int ret;
 
-       src_comp_class = bt_component_class_source_create("src", src_iter_next);
-       assert(src_comp_class);
-       ret = bt_component_class_set_init_method(src_comp_class, src_init);
-       assert(ret == 0);
-       ret = bt_component_class_set_accept_port_connection_method(
-               src_comp_class, accept_port_connection);
-       assert(ret == 0);
-       ret = bt_component_class_set_port_connected_method(src_comp_class,
-               src_port_connected);
-       assert(ret == 0);
-       ret = bt_component_class_set_port_disconnected_method(
-               src_comp_class, src_port_disconnected);
-       assert(ret == 0);
-       sink_comp_class = bt_component_class_sink_create("sink", sink_consume);
-       assert(sink_comp_class);
-       ret = bt_component_class_set_init_method(sink_comp_class, sink_init);
-       assert(ret == 0);
-       ret = bt_component_class_set_accept_port_connection_method(
-               sink_comp_class, accept_port_connection);
-       assert(ret == 0);
-       ret = bt_component_class_set_port_connected_method(sink_comp_class,
-               sink_port_connected);
-       assert(ret == 0);
-       ret = bt_component_class_set_port_disconnected_method(sink_comp_class,
-               sink_port_disconnected);
-       assert(ret == 0);
-       bt_component_class_freeze(src_comp_class);
-       bt_component_class_freeze(sink_comp_class);
+       msg_iter_class = bt_message_iterator_class_create(src_iter_next);
+       BT_ASSERT(msg_iter_class);
+
+       src_comp_class = bt_component_class_source_create(
+               "src", msg_iter_class);
+       BT_ASSERT(src_comp_class);
+       ret = bt_component_class_source_set_initialize_method(
+               src_comp_class, src_init);
+       BT_ASSERT(ret == 0);
+       ret = bt_component_class_source_set_output_port_connected_method(
+               src_comp_class, src_output_port_connected);
+       BT_ASSERT(ret == 0);
+       sink_comp_class = bt_component_class_sink_create("sink",
+               sink_consume);
+       BT_ASSERT(sink_comp_class);
+       ret = bt_component_class_sink_set_initialize_method(sink_comp_class,
+               sink_init);
+       BT_ASSERT(ret == 0);
+       ret = bt_component_class_sink_set_input_port_connected_method(
+               sink_comp_class, sink_input_port_connected);
+       BT_ASSERT(ret == 0);
        events = g_array_new(FALSE, TRUE, sizeof(struct event));
-       assert(events);
+       BT_ASSERT(events);
 }
 
 static
 void fini_test(void)
 {
-       bt_put(src_comp_class);
-       bt_put(sink_comp_class);
+       bt_component_class_source_put_ref(src_comp_class);
+       bt_component_class_sink_put_ref(sink_comp_class);
        g_array_free(events, TRUE);
 }
 
 static
-struct bt_component *create_src(struct bt_graph *graph)
+const bt_component_source *create_src(bt_graph *graph)
 {
-       struct bt_component *comp;
+       const bt_component_source *comp;
        int ret;
 
-       ret = bt_graph_add_component(graph, src_comp_class, "src-comp", NULL,
-               &comp);
-       assert(ret == 0);
+       ret = bt_graph_add_source_component(graph, src_comp_class,
+               "src-comp", NULL, BT_LOGGING_LEVEL_NONE, &comp);
+       BT_ASSERT(ret == 0);
        return comp;
 }
 
 static
-struct bt_component *create_sink(struct bt_graph *graph)
+const bt_component_sink *create_sink(bt_graph *graph)
 {
-       struct bt_component *comp;
+       const bt_component_sink *comp;
        int ret;
 
-       ret = bt_graph_add_component(graph, sink_comp_class, "sink-comp",
-               NULL, &comp);
-       assert(ret == 0);
+       ret = bt_graph_add_sink_component(graph, sink_comp_class,
+               "sink-comp", NULL, BT_LOGGING_LEVEL_NONE, &comp);
+       BT_ASSERT(ret == 0);
        return comp;
 }
 
 static
-struct bt_graph *create_graph(void)
+bt_graph *create_graph(void)
 {
-       struct bt_graph *graph = bt_graph_create();
+       bt_graph *graph = bt_graph_create(0);
        int ret;
 
-       assert(graph);
-       ret = bt_graph_add_port_added_listener(graph, graph_port_added, NULL,
-               NULL);
-       assert(ret >= 0);
-       ret = bt_graph_add_port_removed_listener(graph, graph_port_removed,
-               NULL, NULL);
-       assert(ret >= 0);
-       ret = bt_graph_add_ports_connected_listener(graph,
-               graph_ports_connected, NULL, NULL);
-       assert(ret >= 0);
-       ret = bt_graph_add_ports_disconnected_listener(graph,
-               graph_ports_disconnected, NULL, NULL);
-       assert(ret >= 0);
+       BT_ASSERT(graph);
+       ret = bt_graph_add_source_component_output_port_added_listener(
+               graph, graph_src_output_port_added, NULL, NULL);
+       BT_ASSERT(ret >= 0);
+       ret = bt_graph_add_sink_component_input_port_added_listener(
+               graph, graph_sink_input_port_added, NULL, NULL);
+       BT_ASSERT(ret >= 0);
        return graph;
 }
 
@@ -643,581 +422,310 @@ void prepare_test(enum test test, const char *name)
 }
 
 static
-void test_sink_removes_port_in_port_connected_then_src_removes_disconnected_port(void)
+void test_src_adds_port_in_port_connected(void)
 {
-       int ret;
-       struct bt_component *src;
-       struct bt_component *sink;
-       struct bt_graph *graph;
-       struct bt_port *src_def_port;
-       struct bt_port *sink_def_port;
-       struct bt_connection *conn;
+       const bt_component_source *src;
+       const bt_component_sink *sink;
+       const bt_component *gsrc;
+       const bt_component *gsink;
+       bt_graph *graph;
+       const bt_port_output *src_def_port;
+       const bt_port_output *src_hello_port;
+       const bt_port_input *sink_def_port;
+       const bt_port *gsrc_def_port;
+       const bt_port *gsrc_hello_port;
+       const bt_port *gsink_def_port;
        struct event event;
-       enum bt_graph_status status;
-       size_t src_accept_port_connection_pos;
-       size_t sink_accept_port_connection_pos;
+       bt_graph_connect_ports_status status;
        size_t src_port_connected_pos;
-       size_t sink_port_connected_pos;
-       size_t graph_ports_connected;
-       size_t src_port_disconnected_pos;
-       size_t sink_port_disconnected_pos;
-       size_t graph_ports_disconnected_pos;
-       size_t graph_port_removed_src_pos;
-       size_t graph_port_removed_sink_pos;
-
-       prepare_test(TEST_SINK_REMOVES_PORT_IN_CONSUME_THEN_SRC_REMOVES_DISCONNECTED_PORT,
-               "sink removes port in consume, then source removes disconnected port");
+       size_t graph_port_added_src_pos;
+
+       prepare_test(TEST_SRC_ADDS_PORT_IN_PORT_CONNECTED,
+               "source adds port in port connected");
        graph = create_graph();
-       assert(graph);
+       BT_ASSERT(graph);
        src = create_src(graph);
        sink = create_sink(graph);
-       src_def_port = bt_component_source_get_output_port_by_name(src, "out");
-       assert(src_def_port);
-       sink_def_port = bt_component_sink_get_input_port_by_name(sink, "in");
-       assert(sink_def_port);
-       status = bt_graph_connect_ports(graph, src_def_port, sink_def_port,
-               &conn);
-       assert(status == 0);
-       assert(conn);
-
-       /* We're supposed to have 7 events so far */
-       ok(events->len == 7, "we have the expected number of events (before consume)");
+       src_def_port = bt_component_source_borrow_output_port_by_name_const(src,
+                                                                           "out");
+       BT_ASSERT(src_def_port);
+       sink_def_port = bt_component_sink_borrow_input_port_by_name_const(sink,
+                                                                         "in");
+       BT_ASSERT(sink_def_port);
+       status = bt_graph_connect_ports(graph, src_def_port,
+               sink_def_port, NULL);
+       BT_ASSERT(status == 0);
+       src_hello_port = bt_component_source_borrow_output_port_by_name_const(src,
+                                                                             "hello");
+       BT_ASSERT(src_hello_port);
+       gsrc = bt_component_source_as_component_const(src);
+       gsink = bt_component_sink_as_component_const(sink);
+       gsrc_def_port = bt_port_output_as_port_const(src_def_port);
+       gsrc_hello_port = bt_port_output_as_port_const(src_hello_port);
+       gsink_def_port = bt_port_input_as_port_const(sink_def_port);
+
+       /* We're supposed to have 5 events */
+       ok(events->len == 5, "we have the expected number of events");
 
        /* Source's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = src;
-       event.data.graph_port_added.port = src_def_port;
+       event.type = GRAPH_SRC_OUTPUT_PORT_ADDED;
+       event.data.graph_src_output_port_added.comp = gsrc;
+       event.data.graph_src_output_port_added.port = gsrc_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for source, initial)");
 
        /* Sink's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = sink;
-       event.data.graph_port_added.port = sink_def_port;
+       event.type = GRAPH_SINK_INPUT_PORT_ADDED;
+       event.data.graph_sink_input_port_added.comp = gsink;
+       event.data.graph_sink_input_port_added.port = gsink_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for sink, initial)");
 
-       /* Source's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = src;
-       event.data.comp_accept_port_connection.self_port = src_def_port;
-       event.data.comp_accept_port_connection.other_port = sink_def_port;
-       ok(has_event(&event), "got the expected source's accept port connection event");
-       src_accept_port_connection_pos = event_pos(&event);
-
-       /* Sink's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = sink;
-       event.data.comp_accept_port_connection.self_port = sink_def_port;
-       event.data.comp_accept_port_connection.other_port = src_def_port;
-       ok(has_event(&event), "got the expected sink's accept port connection event");
-       sink_accept_port_connection_pos = event_pos(&event);
-
        /* Source's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = src;
-       event.data.comp_port_connected.self_port = src_def_port;
-       event.data.comp_port_connected.other_port = sink_def_port;
+       event.type = SRC_COMP_OUTPUT_PORT_CONNECTED;
+       event.data.src_comp_output_port_connected.comp = gsrc;
+       event.data.src_comp_output_port_connected.self_port = gsrc_def_port;
+       event.data.src_comp_output_port_connected.other_port = gsink_def_port;
        ok(has_event(&event), "got the expected source's port connected event");
        src_port_connected_pos = event_pos(&event);
 
+       /* Graph's port added (source) */
+       event.type = GRAPH_SRC_OUTPUT_PORT_ADDED;
+       event.data.graph_src_output_port_added.comp = gsrc;
+       event.data.graph_src_output_port_added.port = gsrc_hello_port;
+       ok(has_event(&event), "got the expected graph's port added event (for source)");
+       graph_port_added_src_pos = event_pos(&event);
+
        /* Sink's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = sink;
-       event.data.comp_port_connected.self_port = sink_def_port;
-       event.data.comp_port_connected.other_port = src_def_port;
+       event.type = SINK_COMP_INPUT_PORT_CONNECTED;
+       event.data.sink_comp_input_port_connected.comp = gsink;
+       event.data.sink_comp_input_port_connected.self_port = gsink_def_port;
+       event.data.sink_comp_input_port_connected.other_port = gsrc_def_port;
        ok(has_event(&event), "got the expected sink's port connected event");
-       sink_port_connected_pos = event_pos(&event);
-
-       /* Graph's ports connected */
-       event.type = GRAPH_PORTS_CONNECTED;
-       event.data.graph_ports_connected.upstream_comp = src;
-       event.data.graph_ports_connected.downstream_comp = sink;
-       event.data.graph_ports_connected.upstream_port = src_def_port;
-       event.data.graph_ports_connected.downstream_port = sink_def_port;
-       event.data.graph_ports_connected.conn = conn;
-       ok(has_event(&event), "got the expected graph's ports connected event");
-       graph_ports_connected = event_pos(&event);
 
        /* Order of events */
-       ok(src_port_connected_pos < graph_ports_connected,
-               "event order is good (1)");
-       ok(sink_port_connected_pos < graph_ports_connected,
-               "event order is good (2)");
-       ok(src_accept_port_connection_pos < src_port_connected_pos,
-               "event order is good (3)");
-       ok(sink_accept_port_connection_pos < sink_port_connected_pos,
-               "event order is good (4)");
-
-       /* Consume sink once */
-       clear_events();
-       ret = bt_graph_consume(graph);
-       assert(ret == 0);
-
-       /* We're supposed to have 5 new events */
-       ok(events->len == 5, "we have the expected number of events (after consume)");
-
-       /* Source's port disconnected */
-       event.type = COMP_PORT_DISCONNECTED;
-       event.data.comp_port_disconnected.comp = src;
-       event.data.comp_port_disconnected.port = src_def_port;
-       ok(has_event(&event), "got the expected source's port disconnected event");
-       src_port_disconnected_pos = event_pos(&event);
-
-       /* Sink's port disconnected */
-       event.type = COMP_PORT_DISCONNECTED;
-       event.data.comp_port_disconnected.comp = sink;
-       event.data.comp_port_disconnected.port = sink_def_port;
-       ok(has_event(&event), "got the expected sink's port disconnected event");
-       sink_port_disconnected_pos = event_pos(&event);
-
-       /* Graph's ports disconnected */
-       event.type = GRAPH_PORTS_DISCONNECTED;
-       event.data.graph_ports_disconnected.upstream_comp = src;
-       event.data.graph_ports_disconnected.downstream_comp = sink;
-       event.data.graph_ports_disconnected.upstream_port = src_def_port;
-       event.data.graph_ports_disconnected.downstream_port = sink_def_port;
-       ok(has_event(&event), "got the expected graph's ports disconnected event");
-       graph_ports_disconnected_pos = event_pos(&event);
-
-       /* Graph's port removed (sink) */
-       event.type = GRAPH_PORT_REMOVED;
-       event.data.graph_port_removed.comp = sink;
-       event.data.graph_port_removed.port = sink_def_port;
-       ok(has_event(&event), "got the expected graph's port removed event (for sink)");
-       graph_port_removed_sink_pos = event_pos(&event);
-
-       /* Graph's port removed (source) */
-       event.type = GRAPH_PORT_REMOVED;
-       event.data.graph_port_removed.comp = src;
-       event.data.graph_port_removed.port = src_def_port;
-       ok(has_event(&event), "got the expected graph's port removed event (for source)");
-       graph_port_removed_src_pos = event_pos(&event);
+       ok(src_port_connected_pos < graph_port_added_src_pos,
+               "event order is good");
 
-       /* Order of events */
-       ok(src_port_disconnected_pos < graph_ports_disconnected_pos,
-               "event order is good (5)");
-       ok(src_port_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (6)");
-       ok(src_port_disconnected_pos < graph_port_removed_src_pos,
-               "event order is good (7)");
-       ok(sink_port_disconnected_pos < graph_ports_disconnected_pos,
-               "event order is good (8)");
-       ok(sink_port_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (9)");
-       ok(sink_port_disconnected_pos < graph_port_removed_src_pos,
-               "event order is good (10)");
-       ok(graph_ports_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (11)");
-       ok(graph_port_removed_src_pos < graph_ports_disconnected_pos,
-               "event order is good (12)");
-       ok(graph_port_removed_src_pos < graph_port_removed_sink_pos,
-               "event order is good (13)");
-
-       bt_put(graph);
-       bt_put(sink);
-       bt_put(src);
-       bt_put(conn);
-       bt_put(src_def_port);
-       bt_put(sink_def_port);
+       bt_component_source_put_ref(src);
+       bt_component_sink_put_ref(sink);
+       bt_graph_put_ref(graph);
 }
 
 static
-void test_sink_removes_port_in_port_connected(void)
+void test_simple(void)
 {
-       int ret;
-       struct bt_component *src;
-       struct bt_component *sink;
-       struct bt_graph *graph;
-       struct bt_port *src_def_port;
-       struct bt_port *sink_def_port;
-       struct bt_connection *conn;
+       const bt_component_source *src;
+       const bt_component_sink *sink;
+       const bt_component *gsrc;
+       const bt_component *gsink;
+       bt_graph *graph;
+       const bt_port_output *src_def_port;
+       const bt_port_input *sink_def_port;
+       const bt_port *gsrc_def_port;
+       const bt_port *gsink_def_port;
        struct event event;
-       enum bt_graph_status status;
-       size_t src_accept_port_connection_pos;
-       size_t sink_accept_port_connection_pos;
-       size_t src_port_connected_pos;
-       size_t sink_port_connected_pos;
-       size_t graph_ports_connected_pos;
-       size_t src_port_disconnected_pos;
-       size_t sink_port_disconnected_pos;
-       size_t graph_ports_disconnected_pos;
-       size_t graph_port_removed_sink_pos;
-
-       prepare_test(TEST_SINK_REMOVES_PORT_IN_CONSUME,
-               "sink removes port in consume");
+       bt_graph_connect_ports_status status;
+
+       prepare_test(TEST_SIMPLE, "simple");
        graph = create_graph();
-       assert(graph);
+       BT_ASSERT(graph);
        src = create_src(graph);
        sink = create_sink(graph);
-       src_def_port = bt_component_source_get_output_port_by_name(src, "out");
-       assert(src_def_port);
-       sink_def_port = bt_component_sink_get_input_port_by_name(sink, "in");
-       assert(sink_def_port);
-       status = bt_graph_connect_ports(graph, src_def_port, sink_def_port,
-               &conn);
-       assert(status == 0);
-
-       /* We're supposed to have 7 events so far */
-       ok(events->len == 7, "we have the expected number of events (before consume)");
+       src_def_port = bt_component_source_borrow_output_port_by_name_const(src,
+                                                                           "out");
+       BT_ASSERT(src_def_port);
+       sink_def_port = bt_component_sink_borrow_input_port_by_name_const(sink,
+                                                                         "in");
+       BT_ASSERT(sink_def_port);
+       status = bt_graph_connect_ports(graph, src_def_port,
+               sink_def_port, NULL);
+       BT_ASSERT(status == 0);
+       gsrc = bt_component_source_as_component_const(src);
+       gsink = bt_component_sink_as_component_const(sink);
+       gsrc_def_port = bt_port_output_as_port_const(src_def_port);
+       gsink_def_port = bt_port_input_as_port_const(sink_def_port);
+
+       /* We're supposed to have 4 events */
+       ok(events->len == 4, "we have the expected number of events");
 
        /* Source's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = src;
-       event.data.graph_port_added.port = src_def_port;
+       event.type = GRAPH_SRC_OUTPUT_PORT_ADDED;
+       event.data.graph_src_output_port_added.comp = gsrc;
+       event.data.graph_src_output_port_added.port = gsrc_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for source, initial)");
 
        /* Sink's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = sink;
-       event.data.graph_port_added.port = sink_def_port;
+       event.type = GRAPH_SINK_INPUT_PORT_ADDED;
+       event.data.graph_sink_input_port_added.comp = gsink;
+       event.data.graph_sink_input_port_added.port = gsink_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for sink, initial)");
 
-       /* Source's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = src;
-       event.data.comp_accept_port_connection.self_port = src_def_port;
-       event.data.comp_accept_port_connection.other_port = sink_def_port;
-       ok(has_event(&event), "got the expected source's accept port connection event");
-       src_accept_port_connection_pos = event_pos(&event);
-
-       /* Sink's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = sink;
-       event.data.comp_accept_port_connection.self_port = sink_def_port;
-       event.data.comp_accept_port_connection.other_port = src_def_port;
-       ok(has_event(&event), "got the expected sink's accept port connection event");
-       sink_accept_port_connection_pos = event_pos(&event);
-
        /* Source's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = src;
-       event.data.comp_port_connected.self_port = src_def_port;
-       event.data.comp_port_connected.other_port = sink_def_port;
+       event.type = SRC_COMP_OUTPUT_PORT_CONNECTED;
+       event.data.src_comp_output_port_connected.comp = gsrc;
+       event.data.src_comp_output_port_connected.self_port = gsrc_def_port;
+       event.data.src_comp_output_port_connected.other_port = gsink_def_port;
        ok(has_event(&event), "got the expected source's port connected event");
-       src_port_connected_pos = event_pos(&event);
 
        /* Sink's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = sink;
-       event.data.comp_port_connected.self_port = sink_def_port;
-       event.data.comp_port_connected.other_port = src_def_port;
+       event.type = SINK_COMP_INPUT_PORT_CONNECTED;
+       event.data.sink_comp_input_port_connected.comp = gsink;
+       event.data.sink_comp_input_port_connected.self_port = gsink_def_port;
+       event.data.sink_comp_input_port_connected.other_port = gsrc_def_port;
        ok(has_event(&event), "got the expected sink's port connected event");
-       sink_port_connected_pos = event_pos(&event);
-
-       /* Graph's ports connected */
-       event.type = GRAPH_PORTS_CONNECTED;
-       event.data.graph_ports_connected.upstream_comp = src;
-       event.data.graph_ports_connected.downstream_comp = sink;
-       event.data.graph_ports_connected.upstream_port = src_def_port;
-       event.data.graph_ports_connected.downstream_port = sink_def_port;
-       event.data.graph_ports_connected.conn = conn;
-       ok(has_event(&event), "got the expected graph's ports connected event");
-       graph_ports_connected_pos = event_pos(&event);
 
-       /* Order of events */
-       ok(src_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (1)");
-       ok(sink_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (2)");
-       ok(src_accept_port_connection_pos < src_port_connected_pos,
-               "event order is good (3)");
-       ok(sink_accept_port_connection_pos < sink_port_connected_pos,
-               "event order is good (4)");
-
-       /* Consume sink once */
-       clear_events();
-       ret = bt_graph_consume(graph);
-       assert(ret == 0);
-
-       /* We're supposed to have 4 new events */
-       ok(events->len == 4, "we have the expected number of events (after consume)");
-
-       /* Source's port disconnected */
-       event.type = COMP_PORT_DISCONNECTED;
-       event.data.comp_port_disconnected.comp = src;
-       event.data.comp_port_disconnected.port = src_def_port;
-       ok(has_event(&event), "got the expected source's port disconnected event");
-       src_port_disconnected_pos = event_pos(&event);
-
-       /* Sink's port disconnected */
-       event.type = COMP_PORT_DISCONNECTED;
-       event.data.comp_port_disconnected.comp = sink;
-       event.data.comp_port_disconnected.port = sink_def_port;
-       ok(has_event(&event), "got the expected sink's port disconnected event");
-       sink_port_disconnected_pos = event_pos(&event);
-
-       /* Graph's ports disconnected */
-       event.type = GRAPH_PORTS_DISCONNECTED;
-       event.data.graph_ports_disconnected.upstream_comp = src;
-       event.data.graph_ports_disconnected.downstream_comp = sink;
-       event.data.graph_ports_disconnected.upstream_port = src_def_port;
-       event.data.graph_ports_disconnected.downstream_port = sink_def_port;
-       ok(has_event(&event), "got the expected graph's ports disconnected event");
-       graph_ports_disconnected_pos = event_pos(&event);
-
-       /* Graph's port removed (sink) */
-       event.type = GRAPH_PORT_REMOVED;
-       event.data.graph_port_removed.comp = sink;
-       event.data.graph_port_removed.port = sink_def_port;
-       ok(has_event(&event), "got the expected graph's port removed event (for sink)");
-       graph_port_removed_sink_pos = event_pos(&event);
-
-       /* Order of events */
-       ok(src_port_disconnected_pos < graph_ports_disconnected_pos,
-               "event order is good (5)");
-       ok(src_port_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (7)");
-       ok(sink_port_disconnected_pos < graph_ports_disconnected_pos,
-               "event order is good (8)");
-       ok(sink_port_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (10)");
-       ok(graph_ports_disconnected_pos < graph_port_removed_sink_pos,
-               "event order is good (11)");
-
-       bt_put(graph);
-       bt_put(sink);
-       bt_put(src);
-       bt_put(conn);
-       bt_put(src_def_port);
-       bt_put(sink_def_port);
+       bt_component_sink_put_ref(sink);
+       bt_graph_put_ref(graph);
+       bt_component_source_put_ref(src);
 }
 
 static
-void test_src_adds_port_in_port_connected(void)
+void test_src_port_connected_error(void)
 {
-       struct bt_component *src;
-       struct bt_component *sink;
-       struct bt_graph *graph;
-       struct bt_port *src_def_port;
-       struct bt_port *sink_def_port;
-       struct bt_port *src_hello_port;
-       struct bt_connection *conn;
+       const bt_component_source *src;
+       const bt_component_sink *sink;
+       const bt_component *gsrc;
+       const bt_component *gsink;
+       bt_graph *graph;
+       const bt_port_output *src_def_port;
+       const bt_port_input *sink_def_port;
+       const bt_port *gsrc_def_port;
+       const bt_port *gsink_def_port;
+       const bt_connection *conn = NULL;
        struct event event;
-       enum bt_graph_status status;
-       size_t src_accept_port_connection_pos;
-       size_t sink_accept_port_connection_pos;
-       size_t src_port_connected_pos;
-       size_t sink_port_connected_pos;
-       size_t graph_ports_connected_pos;
-       size_t graph_port_added_src_pos;
+       bt_graph_connect_ports_status status;
 
-       prepare_test(TEST_SRC_ADDS_PORT_IN_PORT_CONNECTED,
-               "source adds port in port connected");
+       prepare_test(TEST_SRC_PORT_CONNECTED_ERROR, "port connected error: source");
        graph = create_graph();
-       assert(graph);
+       BT_ASSERT(graph);
        src = create_src(graph);
        sink = create_sink(graph);
-       src_def_port = bt_component_source_get_output_port_by_name(src, "out");
-       assert(src_def_port);
-       sink_def_port = bt_component_sink_get_input_port_by_name(sink, "in");
-       assert(sink_def_port);
-       status = bt_graph_connect_ports(graph, src_def_port, sink_def_port,
-               &conn);
-       assert(status == 0);
-       src_hello_port = bt_component_source_get_output_port_by_name(src,
-               "hello");
-       assert(src_hello_port);
-
-       /* We're supposed to have 8 events */
-       ok(events->len == 8, "we have the expected number of events");
+       src_def_port = bt_component_source_borrow_output_port_by_name_const(src,
+                                                                           "out");
+       BT_ASSERT(src_def_port);
+       sink_def_port = bt_component_sink_borrow_input_port_by_name_const(sink,
+                                                                         "in");
+       BT_ASSERT(sink_def_port);
+       status = bt_graph_connect_ports(graph, src_def_port,
+               sink_def_port, &conn);
+       ok(status != BT_GRAPH_CONNECT_PORTS_STATUS_OK,
+               "bt_graph_connect_ports() returns an error");
+       bt_current_thread_clear_error();
+       ok(!conn, "returned connection is still NULL");
+       gsrc = bt_component_source_as_component_const(src);
+       gsink = bt_component_sink_as_component_const(sink);
+       gsrc_def_port = bt_port_output_as_port_const(src_def_port);
+       gsink_def_port = bt_port_input_as_port_const(sink_def_port);
+
+       /* We're supposed to have 3 events */
+       ok(events->len == 3, "we have the expected number of events");
 
        /* Source's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = src;
-       event.data.graph_port_added.port = src_def_port;
+       event.type = GRAPH_SRC_OUTPUT_PORT_ADDED;
+       event.data.graph_src_output_port_added.comp = gsrc;
+       event.data.graph_src_output_port_added.port = gsrc_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for source, initial)");
 
        /* Sink's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = sink;
-       event.data.graph_port_added.port = sink_def_port;
+       event.type = GRAPH_SINK_INPUT_PORT_ADDED;
+       event.data.graph_sink_input_port_added.comp = gsink;
+       event.data.graph_sink_input_port_added.port = gsink_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for sink, initial)");
 
-       /* Source's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = src;
-       event.data.comp_accept_port_connection.self_port = src_def_port;
-       event.data.comp_accept_port_connection.other_port = sink_def_port;
-       ok(has_event(&event), "got the expected source's accept port connection event");
-       src_accept_port_connection_pos = event_pos(&event);
-
-       /* Sink's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = sink;
-       event.data.comp_accept_port_connection.self_port = sink_def_port;
-       event.data.comp_accept_port_connection.other_port = src_def_port;
-       ok(has_event(&event), "got the expected sink's accept port connection event");
-       sink_accept_port_connection_pos = event_pos(&event);
-
        /* Source's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = src;
-       event.data.comp_port_connected.self_port = src_def_port;
-       event.data.comp_port_connected.other_port = sink_def_port;
+       event.type = SRC_COMP_OUTPUT_PORT_CONNECTED;
+       event.data.src_comp_output_port_connected.comp = gsrc;
+       event.data.src_comp_output_port_connected.self_port = gsrc_def_port;
+       event.data.src_comp_output_port_connected.other_port = gsink_def_port;
        ok(has_event(&event), "got the expected source's port connected event");
-       src_port_connected_pos = event_pos(&event);
-
-       /* Graph's port added (source) */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = src;
-       event.data.graph_port_added.port = src_hello_port;
-       ok(has_event(&event), "got the expected graph's port added event (for source)");
-       graph_port_added_src_pos = event_pos(&event);
-
-       /* Sink's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = sink;
-       event.data.comp_port_connected.self_port = sink_def_port;
-       event.data.comp_port_connected.other_port = src_def_port;
-       ok(has_event(&event), "got the expected sink's port connected event");
-       sink_port_connected_pos = event_pos(&event);
-
-       /* Graph's ports connected */
-       event.type = GRAPH_PORTS_CONNECTED;
-       event.data.graph_ports_connected.upstream_comp = src;
-       event.data.graph_ports_connected.downstream_comp = sink;
-       event.data.graph_ports_connected.upstream_port = src_def_port;
-       event.data.graph_ports_connected.downstream_port = sink_def_port;
-       event.data.graph_ports_connected.conn = conn;
-       ok(has_event(&event), "got the expected graph's port connected event (for source)");
-       graph_ports_connected_pos = event_pos(&event);
 
-       /* Order of events */
-       ok(src_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (1)");
-       ok(sink_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (2)");
-       ok(src_accept_port_connection_pos < src_port_connected_pos,
-               "event order is good (3)");
-       ok(sink_accept_port_connection_pos < sink_port_connected_pos,
-               "event order is good (4)");
-       ok(src_port_connected_pos < graph_port_added_src_pos,
-               "event order is good (5)");
-       ok(graph_port_added_src_pos < graph_ports_connected_pos,
-               "event order is good (6)");
-
-       bt_put(graph);
-       bt_put(sink);
-       bt_put(src);
-       bt_put(conn);
-       bt_put(src_def_port);
-       bt_put(sink_def_port);
-       bt_put(src_hello_port);
+       bt_graph_put_ref(graph);
+       bt_component_sink_put_ref(sink);
+       bt_component_source_put_ref(src);
+       bt_connection_put_ref(conn);
 }
 
 static
-void test_simple(void)
+void test_sink_port_connected_error(void)
 {
-       struct bt_component *src;
-       struct bt_component *sink;
-       struct bt_graph *graph;
-       struct bt_port *src_def_port;
-       struct bt_port *sink_def_port;
-       struct bt_connection *conn;
+       const bt_component_source *src;
+       const bt_component_sink *sink;
+       const bt_component *gsrc;
+       const bt_component *gsink;
+       bt_graph *graph;
+       const bt_port_output *src_def_port;
+       const bt_port_input *sink_def_port;
+       const bt_port *gsrc_def_port;
+       const bt_port *gsink_def_port;
+       const bt_connection *conn = NULL;
        struct event event;
-       enum bt_graph_status status;
-       size_t src_accept_port_connection_pos;
-       size_t sink_accept_port_connection_pos;
-       size_t src_port_connected_pos;
-       size_t sink_port_connected_pos;
-       size_t graph_ports_connected_pos;
+       bt_graph_connect_ports_status status;
 
-       prepare_test(TEST_SIMPLE, "simple");
+       prepare_test(TEST_SINK_PORT_CONNECTED_ERROR, "port connected error: sink");
        graph = create_graph();
-       assert(graph);
+       BT_ASSERT(graph);
        src = create_src(graph);
        sink = create_sink(graph);
-       src_def_port = bt_component_source_get_output_port_by_name(src, "out");
-       assert(src_def_port);
-       sink_def_port = bt_component_sink_get_input_port_by_name(sink, "in");
-       assert(sink_def_port);
-       status = bt_graph_connect_ports(graph, src_def_port, sink_def_port,
-               &conn);
-       assert(status == 0);
-
-       /* We're supposed to have 7 events */
-       ok(events->len == 7, "we have the expected number of events");
+       src_def_port = bt_component_source_borrow_output_port_by_name_const(src,
+                                                                           "out");
+       BT_ASSERT(src_def_port);
+       sink_def_port = bt_component_sink_borrow_input_port_by_name_const(sink,
+                                                                         "in");
+       BT_ASSERT(sink_def_port);
+       status = bt_graph_connect_ports(graph, src_def_port,
+               sink_def_port, &conn);
+       ok(status != BT_GRAPH_CONNECT_PORTS_STATUS_OK,
+               "bt_graph_connect_ports() returns an error");
+       bt_current_thread_clear_error();
+       ok(!conn, "returned connection is still NULL");
+       gsrc = bt_component_source_as_component_const(src);
+       gsink = bt_component_sink_as_component_const(sink);
+       gsrc_def_port = bt_port_output_as_port_const(src_def_port);
+       gsink_def_port = bt_port_input_as_port_const(sink_def_port);
+
+       /* We're supposed to have 4 events */
+       ok(events->len == 4, "we have the expected number of events");
 
        /* Source's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = src;
-       event.data.graph_port_added.port = src_def_port;
+       event.type = GRAPH_SRC_OUTPUT_PORT_ADDED;
+       event.data.graph_src_output_port_added.comp = gsrc;
+       event.data.graph_src_output_port_added.port = gsrc_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for source, initial)");
 
        /* Sink's port added */
-       event.type = GRAPH_PORT_ADDED;
-       event.data.graph_port_added.comp = sink;
-       event.data.graph_port_added.port = sink_def_port;
+       event.type = GRAPH_SINK_INPUT_PORT_ADDED;
+       event.data.graph_sink_input_port_added.comp = gsink;
+       event.data.graph_sink_input_port_added.port = gsink_def_port;
        ok(has_event(&event), "got the expected graph's port added event (for sink, initial)");
 
-       /* Source's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = src;
-       event.data.comp_accept_port_connection.self_port = src_def_port;
-       event.data.comp_accept_port_connection.other_port = sink_def_port;
-       ok(has_event(&event), "got the expected source's accept port connection event");
-       src_accept_port_connection_pos = event_pos(&event);
-
-       /* Sink's accept port connection */
-       event.type = COMP_ACCEPT_PORT_CONNECTION;
-       event.data.comp_accept_port_connection.comp = sink;
-       event.data.comp_accept_port_connection.self_port = sink_def_port;
-       event.data.comp_accept_port_connection.other_port = src_def_port;
-       ok(has_event(&event), "got the expected sink's accept port connection event");
-       sink_accept_port_connection_pos = event_pos(&event);
-
        /* Source's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = src;
-       event.data.comp_port_connected.self_port = src_def_port;
-       event.data.comp_port_connected.other_port = sink_def_port;
+       event.type = SRC_COMP_OUTPUT_PORT_CONNECTED;
+       event.data.src_comp_output_port_connected.comp = gsrc;
+       event.data.src_comp_output_port_connected.self_port = gsrc_def_port;
+       event.data.src_comp_output_port_connected.other_port = gsink_def_port;
        ok(has_event(&event), "got the expected source's port connected event");
-       src_port_connected_pos = event_pos(&event);
 
        /* Sink's port connected */
-       event.type = COMP_PORT_CONNECTED;
-       event.data.comp_port_connected.comp = sink;
-       event.data.comp_port_connected.self_port = sink_def_port;
-       event.data.comp_port_connected.other_port = src_def_port;
+       event.type = SINK_COMP_INPUT_PORT_CONNECTED;
+       event.data.sink_comp_input_port_connected.comp = gsink;
+       event.data.sink_comp_input_port_connected.self_port = gsink_def_port;
+       event.data.sink_comp_input_port_connected.other_port = gsrc_def_port;
        ok(has_event(&event), "got the expected sink's port connected event");
-       sink_port_connected_pos = event_pos(&event);
-
-       /* Graph's port connected */
-       event.type = GRAPH_PORTS_CONNECTED;
-       event.data.graph_ports_connected.upstream_comp = src;
-       event.data.graph_ports_connected.downstream_comp = sink;
-       event.data.graph_ports_connected.upstream_port = src_def_port;
-       event.data.graph_ports_connected.downstream_port = sink_def_port;
-       event.data.graph_ports_connected.conn = conn;
-       ok(has_event(&event), "got the expected graph's ports connected event");
-       graph_ports_connected_pos = event_pos(&event);
 
-       /* Order of events */
-       ok(src_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (1)");
-       ok(sink_port_connected_pos < graph_ports_connected_pos,
-               "event order is good (2)");
-       ok(src_accept_port_connection_pos < src_port_connected_pos,
-               "event order is good (3)");
-       ok(sink_accept_port_connection_pos < sink_port_connected_pos,
-               "event order is good (4)");
-
-       bt_put(graph);
-       bt_put(sink);
-       bt_put(src);
-       bt_put(conn);
-       bt_put(src_def_port);
-       bt_put(sink_def_port);
+       bt_connection_put_ref(conn);
+       bt_graph_put_ref(graph);
+       bt_component_sink_put_ref(sink);
+       bt_component_source_put_ref(src);
 }
 
 static
 void test_empty_graph(void)
 {
-       struct bt_graph *graph;
+       bt_graph *graph;
 
        prepare_test(TEST_EMPTY_GRAPH, "empty graph");
        graph = create_graph();
        ok(events->len == 0, "empty graph generates no events");
-       bt_put(graph);
+       bt_graph_put_ref(graph);
 }
 
 int main(int argc, char **argv)
@@ -1226,9 +734,9 @@ int main(int argc, char **argv)
        init_test();
        test_empty_graph();
        test_simple();
+       test_src_port_connected_error();
+       test_sink_port_connected_error();
        test_src_adds_port_in_port_connected();
-       test_sink_removes_port_in_port_connected();
-       test_sink_removes_port_in_port_connected_then_src_removes_disconnected_port();
        fini_test();
        return exit_status();
 }
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