sbus_tests: Add some testing of dispatch and handler code

This starts a DBus server with some handlers, and runs some method
calls against it.

Note that we don't use the codegen in the sbus_tests, as we sorta
want to test this non-codegen related functionality on its own before
we run the sbus_codegen_tests.

Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>
Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>

1 files changed, 231 insertions, 0 deletions

diff --git a/src/tests/sbus_tests.c b/src/tests/sbus_tests.c
new file mode 100644
index 000000000..7290fe7db
--- /dev/null
+++ b/src/tests/sbus_tests.c
@@ -0,0 +1,231 @@
+/*
+   SSSD
+
+   sbus_codegen tests.
+
+   Authors:
+        Stef Walter <stefw@redhat.com>
+
+   Copyright (C) Red Hat, Inc 2014
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+#include <check.h>
+#include <talloc.h>
+#include <tevent.h>
+#include <popt.h>
+
+#include "common.h"
+
+#include "sbus/sssd_dbus.h"
+#include "sbus/sssd_dbus_meta.h"
+#include "util/util_errors.h"
+
+/*
+ * Although one would normally rely on the codegen to generate these
+ * structures, we want to test this functionality *before* we test
+ * the codegen in sbus_codegen_tests ... so these are hand rolled.
+ */
+
+#define PILOT_IFACE "test.Pilot"
+#define PILOT_BLINK "Blink"
+
+/* our vtable */
+struct pilot_vtable {
+    struct sbus_vtable vtable;
+    sbus_msg_handler_fn Blink;
+};
+
+const struct sbus_method_meta pilot_methods[] = {
+    {
+        PILOT_BLINK, /* method name */
+        NULL, /* in args: manually parsed */
+        NULL, /* out args: manually parsed */
+        offsetof(struct pilot_vtable, Blink),
+    },
+    { NULL, }
+};
+
+const struct sbus_interface_meta pilot_meta = {
+    PILOT_IFACE, /* name */
+    pilot_methods,
+    NULL, /* no signals */
+    NULL, /* no properties */
+};
+
+static int blink_handler(struct sbus_request *req, void *data)
+{
+    DBusError error = DBUS_ERROR_INIT;
+    const char *path;
+    dbus_int32_t duration = 0;
+    dbus_bool_t crashed;
+
+    ck_assert(req->intf->vtable->meta == &pilot_meta);
+    ck_assert(data != NULL);
+    ck_assert(data == req->intf->instance_data);
+
+    path = dbus_message_get_path(req->message);
+    ck_assert_str_eq(req->intf->path, path);
+
+    if (strcmp(path, "/test/fry") == 0) {
+        ck_assert_str_eq(data, "Don't crash");
+    } else if (strcmp(path, "/test/leela") == 0) {
+        ck_assert_str_eq(data, "Crash into the billboard");
+    } else {
+        ck_abort();
+    }
+
+    if (!dbus_message_get_args (req->message, &error,
+                                DBUS_TYPE_INT32, &duration,
+                                DBUS_TYPE_INVALID)) {
+        sbus_request_fail_and_finish(req, &error);
+        dbus_error_free(&error);
+        return EOK;
+    }
+
+    /* Pilot crashes when eyes closed too long */
+    crashed = (duration > 5);
+
+    return sbus_request_return_and_finish(req,
+                                          DBUS_TYPE_BOOLEAN, &crashed,
+                                          DBUS_TYPE_INVALID);
+}
+
+struct pilot_vtable pilot_impl = {
+    { &pilot_meta, 0 },
+    .Blink = blink_handler,
+};
+
+static int pilot_test_server_init(struct sbus_connection *server, void *unused)
+{
+    int ret;
+
+    ret = sbus_conn_add_interface(server,
+                                  sbus_new_interface(server, "/test/leela",
+                                                     &pilot_impl.vtable,
+                                                     "Crash into the billboard"));
+    ck_assert_int_eq(ret, EOK);
+
+
+    ret = sbus_conn_add_interface(server,
+                                  sbus_new_interface(server, "/test/fry",
+                                                     &pilot_impl.vtable,
+                                                     "Don't crash"));
+    ck_assert_int_eq(ret, EOK);
+
+    return EOK;
+}
+
+START_TEST(test_raw_handler)
+{
+    TALLOC_CTX *ctx;
+    DBusConnection *client;
+    DBusError error = DBUS_ERROR_INIT;
+    DBusMessage *reply;
+    dbus_bool_t crashed;
+    dbus_int32_t duration;
+
+    ctx = talloc_new(NULL);
+    client = test_dbus_setup_mock(ctx, NULL, pilot_test_server_init, NULL);
+
+    /* Leela crashes with a duration higher than 5 */
+    duration = 10;
+    reply = test_dbus_call_sync(client,
+                                "/test/leela",
+                                PILOT_IFACE,
+                                PILOT_BLINK,
+                                &error,
+                                DBUS_TYPE_INT32, &duration,
+                                DBUS_TYPE_INVALID);
+    ck_assert(reply != NULL);
+    ck_assert(!dbus_error_is_set(&error));
+    ck_assert(dbus_message_get_args(reply, NULL,
+                                    DBUS_TYPE_BOOLEAN, &crashed,
+                                    DBUS_TYPE_INVALID));
+    dbus_message_unref (reply);
+    ck_assert(crashed == true);
+
+    /* Fry daesn't crash with a duration lower than 5 */
+    duration = 1;
+    reply = test_dbus_call_sync(client,
+                                "/test/fry",
+                                PILOT_IFACE,
+                                PILOT_BLINK,
+                                &error,
+                                DBUS_TYPE_INT32, &duration,
+                                DBUS_TYPE_INVALID);
+    ck_assert(reply != NULL);
+    ck_assert(!dbus_error_is_set(&error));
+    ck_assert(dbus_message_get_args(reply, NULL,
+                                    DBUS_TYPE_BOOLEAN, &crashed,
+                                    DBUS_TYPE_INVALID));
+    dbus_message_unref (reply);
+    ck_assert(crashed == FALSE);
+
+    talloc_free(ctx);
+}
+END_TEST
+
+TCase *create_sbus_tests(void)
+{
+    TCase *tc = tcase_create("tests");
+
+    tcase_add_test(tc, test_raw_handler);
+
+    return tc;
+}
+
+Suite *create_suite(void)
+{
+    Suite *s = suite_create("sbus");
+    suite_add_tcase(s, create_sbus_tests());
+    return s;
+}
+
+int main(int argc, const char *argv[])
+{
+    int opt;
+    poptContext pc;
+    int failure_count;
+    Suite *suite;
+    SRunner *sr;
+
+    struct poptOption long_options[] = {
+        POPT_AUTOHELP
+        POPT_TABLEEND
+    };
+
+    pc = poptGetContext(argv[0], argc, argv, long_options, 0);
+    while ((opt = poptGetNextOpt(pc)) != -1) {
+        switch (opt) {
+        default:
+            fprintf(stderr, "\nInvalid option %s: %s\n\n",
+                    poptBadOption(pc, 0), poptStrerror(opt));
+            poptPrintUsage(pc, stderr, 0);
+            return 1;
+        }
+    }
+    poptFreeContext(pc);
+
+    suite = create_suite();
+    sr = srunner_create(suite);
+    srunner_set_fork_status(sr, CK_NOFORK);
+    /* If CK_VERBOSITY is set, use that, otherwise it defaults to CK_NORMAL */
+    srunner_run_all(sr, CK_ENV);
+    failure_count = srunner_ntests_failed(sr);
+    srunner_free(sr);
+    return (failure_count == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+}