VILLASnode/fpga/tests/unit/fifo.cpp

/* FIFO unit test.
 *
 * Author: Steffen Vogel <post@steffenvogel.de>
 * SPDX-FileCopyrightText: 2017 Steffen Vogel <post@steffenvogel.de>
 * SPDX-License-Identifier: Apache-2.0
 */

#include <criterion/criterion.h>

#include <villas/log.hpp>
#include <villas/utils.hpp>

#include <villas/fpga/card.hpp>
#include <villas/fpga/ips/fifo.hpp>

#include "global.hpp"

using namespace villas;

// cppcheck-suppress unknownMacro
Test(fpga, fifo, .description = "FIFO") {
  ssize_t len;
  char src[255], dst[255];
  size_t count = 0;

  auto logger = logging.get("unit-test:fifo");

  for (auto &ip : state.cards.front()->ips) {
    // Skip non-fifo IPs
    if (*ip != fpga::Vlnv("xilinx.com:ip:axi_fifo_mm_s:"))
      continue;

    logger->info("Testing {}", *ip);

    auto fifo = std::dynamic_pointer_cast<fpga::ip::Fifo>(ip);

    if (not fifo->loopbackPossible()) {
      logger->info("Loopback test not possible for {}", *ip);
      continue;
    }

    if (not fifo->connectLoopback()) {
      continue;
    }

    // Get some random data to compare
    memset(dst, 0, sizeof(dst));
    len = utils::readRandom((char *)src, sizeof(src));
    if (len != sizeof(src)) {
      logger->error("Failed to get random data");
      continue;
    }

    len = fifo->write(src, sizeof(src));
    if (len != sizeof(src)) {
      logger->error("Failed to send to FIFO");
      continue;
    }

    len = fifo->read(dst, sizeof(dst));
    if (len != sizeof(dst)) {
      logger->error("Failed to read from FIFO");
      continue;
    }

    // Compare data
    cr_assert_eq(memcmp(src, dst, sizeof(src)), 0, "Data not equal");

    logger->info(CLR_GRN("Passed"));

    count++;
  }

  cr_assert(count > 0, "No FIFO found");
}