tests/lib/test_fields_bin.cpp

   1 /*
   2  * SPDX-License-Identifier: GPL-2.0-only
   3  *
   4  * Copyright (C) 2023 EfficiOS Inc.
   5  */
   6
   7 #include "utils/run-in.hpp"
   8 #include "tap/tap.h"
   9 #include "common/assert.h"
  10 #include <cstring>
  11
  12 static const int NR_TESTS = 2;
  13
  14 static void test_string_clear()
  15 {
  16     runInMsgIterClsInit([](bt_self_message_iterator * const self) {
  17         /* Boilerplate to get a string field */
  18         const auto traceCls =
  19             bt_trace_class_create(bt_self_message_iterator_borrow_component(self));
  20         const auto streamCls = bt_stream_class_create(traceCls);
  21         const auto eventCls = bt_event_class_create(streamCls);
  22         const auto payloadCls = bt_field_class_structure_create(traceCls);
  23
  24         {
  25             const auto stringFieldCls = bt_field_class_string_create(traceCls);
  26             const auto status =
  27                 bt_field_class_structure_append_member(payloadCls, "str", stringFieldCls);
  28             BT_ASSERT(status == BT_FIELD_CLASS_STRUCTURE_APPEND_MEMBER_STATUS_OK);
  29             bt_field_class_put_ref(stringFieldCls);
  30         }
  31
  32         {
  33             const auto status = bt_event_class_set_payload_field_class(eventCls, payloadCls);
  34             BT_ASSERT(status == BT_EVENT_CLASS_SET_FIELD_CLASS_STATUS_OK);
  35         }
  36
  37         const auto trace = bt_trace_create(traceCls);
  38         const auto stream = bt_stream_create(streamCls, trace);
  39         const auto msg = bt_message_event_create(self, eventCls, stream);
  40         const auto field = bt_field_structure_borrow_member_field_by_name(
  41             bt_event_borrow_payload_field(bt_message_event_borrow_event(msg)), "str");
  42
  43         /* Set the field to a known non-empty value */
  44         {
  45             const auto status = bt_field_string_set_value(field, "pomme");
  46             BT_ASSERT(status == BT_FIELD_STRING_SET_VALUE_STATUS_OK);
  47             BT_ASSERT(std::strcmp(bt_field_string_get_value(field), "pomme") == 0);
  48         }
  49
  50         /* Clear the field, verify its value and length */
  51         bt_field_string_clear(field);
  52         ok(std::strcmp(bt_field_string_get_value(field), "") == 0, "string field is empty");
  53         ok(bt_field_string_get_length(field) == 0, "string field length is 0");
  54
  55         bt_message_put_ref(msg);
  56         bt_stream_put_ref(stream);
  57         bt_trace_put_ref(trace);
  58         bt_field_class_put_ref(payloadCls);
  59         bt_event_class_put_ref(eventCls);
  60         bt_stream_class_put_ref(streamCls);
  61         bt_trace_class_put_ref(traceCls);
  62     });
  63 }
  64
  65 int main()
  66 {
  67     plan_tests(NR_TESTS);
  68
  69     test_string_clear();
  70
  71     return exit_status();
  72 }