cyclonedds/src/core/ddsc/tests/config.c

/*
 * Copyright(c) 2006 to 2018 ADLINK Technology Limited and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Eclipse Distribution License
 * v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */
#include <stdlib.h>

#include "dds/dds.h"
#include "CUnit/Test.h"
#include "config_env.h"

#include "dds/version.h"
#include "dds/ddsrt/cdtors.h"
#include "dds/ddsrt/environ.h"
#include "dds/ddsrt/heap.h"

#define FORCE_ENV

#define URI_VARIABLE DDS_PROJECT_NAME_NOSPACE_CAPS"_URI"
#define MAX_PARTICIPANTS_VARIABLE "MAX_PARTICIPANTS"

static void config__check_env (const char *env_variable, const char *expected_value)
{
  char *env_uri = NULL;
  ddsrt_getenv (env_variable, &env_uri);
#ifdef FORCE_ENV
  {
    bool env_ok;

    if (env_uri == NULL)
      env_ok = false;
    else if (strncmp (env_uri, expected_value, strlen (expected_value)) != 0)
      env_ok = false;
    else
      env_ok = true;

    if (!env_ok)
    {
      dds_return_t r = ddsrt_setenv (env_variable, expected_value);
      CU_ASSERT_EQUAL_FATAL (r, DDS_RETCODE_OK);
    }
  }
#else
  CU_ASSERT_PTR_NOT_NULL_FATAL (env_uri);
  CU_ASSERT_STRING_EQUAL_FATAL (env_uri, expected_value);
#endif /* FORCE_ENV */
}

CU_Test (ddsc_config, simple_udp, .init = ddsrt_init, .fini = ddsrt_fini)
{
  dds_entity_t participant;
  config__check_env (URI_VARIABLE, CONFIG_ENV_SIMPLE_UDP);
  config__check_env (MAX_PARTICIPANTS_VARIABLE, CONFIG_ENV_MAX_PARTICIPANTS);
  participant = dds_create_participant (DDS_DOMAIN_DEFAULT, NULL, NULL);
  CU_ASSERT_FATAL (participant> 0);
  dds_delete (participant);
}

CU_Test (ddsc_config, user_config, .init = ddsrt_init, .fini = ddsrt_fini)
{
  dds_entity_t domain;
  domain = dds_create_domain (1,
                              "<"DDS_PROJECT_NAME"><Domain><Id>any</Id></Domain>"
                              "<DDSI2E><Internal><MaxParticipants>2</MaxParticipants></Internal></DDSI2E>"
                              "</"DDS_PROJECT_NAME">");
  CU_ASSERT_FATAL (domain > 0);

  dds_entity_t participant_1 = dds_create_participant (1, NULL, NULL);
  CU_ASSERT_FATAL(participant_1 > 0);

  dds_entity_t participant_2 = dds_create_participant (1, NULL, NULL);
  CU_ASSERT_FATAL(participant_2 > 0);

  dds_entity_t participant_3 = dds_create_participant (1, NULL, NULL);
  CU_ASSERT(participant_3 < 0);

  dds_delete (domain);
}