1 files changed, 90 insertions, 0 deletions
diff --git a/src/test/test-bus-util.c b/src/test/test-bus-util.c
new file mode 100644
index 0000000000..791b3928fe
--- /dev/null
+++ b/src/test/test-bus-util.c
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "bus-util.h"
+#include "log.h"
+
+static void test_name_async(unsigned n_messages) {
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        int r;
+        unsigned i;
+
+        log_info("/* %s (%u) */", __func__, n_messages);
+
+        r = bus_open_system_watch_bind_with_description(&bus, "test-bus");
+        if (r < 0) {
+                log_error_errno(r, "Failed to connect to bus: %m");
+                return;
+        }
+
+        r = bus_request_name_async_may_reload_dbus(bus, NULL, "org.freedesktop.systemd.test-bus-util", 0, NULL);
+        if (r < 0) {
+                log_error_errno(r, "Failed to request name: %m");
+                return;
+        }
+
+        for (i = 0; i < n_messages; i++) {
+                r = sd_bus_process(bus, NULL);
+                log_debug("stage %u: sd_bus_process returned %d", i, r);
+                if (r < 0) {
+                        log_notice_errno(r, "Processing failed: %m");
+                        return;
+                }
+
+                if (r > 0 && i + 1 < n_messages)
+                        (void) sd_bus_wait(bus, USEC_PER_SEC / 3);
+        }
+}
+
+static int callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+        return 1;
+}
+
+static void destroy_callback(void *userdata) {
+        int *n_called = userdata;
+
+        (*n_called) ++;
+}
+
+static void test_destroy_callback(void) {
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        sd_bus_slot *slot = NULL;
+        sd_bus_destroy_t t;
+
+        int r, n_called = 0;
+
+        log_info("/* %s */", __func__);
+
+        r = bus_open_system_watch_bind_with_description(&bus, "test-bus");
+        if (r < 0) {
+                log_error_errno(r, "Failed to connect to bus: %m");
+                return;
+        }
+
+        r = sd_bus_request_name_async(bus, &slot, "org.freedesktop.systemd.test-bus-util", 0, callback, &n_called);
+        assert(r == 1);
+
+        assert_se(sd_bus_slot_get_destroy_callback(slot, NULL) == 0);
+        assert_se(sd_bus_slot_get_destroy_callback(slot, &t) == 0);
+
+        assert_se(sd_bus_slot_set_destroy_callback(slot, destroy_callback) == 0);
+        assert_se(sd_bus_slot_get_destroy_callback(slot, NULL) == 1);
+        assert_se(sd_bus_slot_get_destroy_callback(slot, &t) == 1);
+        assert_se(t == destroy_callback);
+
+        /* Force cleanup so we can look at n_called */
+        assert(n_called == 0);
+        sd_bus_slot_unref(slot);
+        assert(n_called == 1);
+}
+
+int main(int argc, char **argv) {
+        log_set_max_level(LOG_DEBUG);
+        log_parse_environment();
+        log_open();
+
+        test_name_async(0);
+        test_name_async(20);
+        test_destroy_callback();
+
+        return 0;
+}