VILLASnode/common/tests/unit/hist.cpp

/* Unit tests for histogram.
 *
 * Author: Steffen Vogel <post@steffenvogel.de>
 * SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 * SPDX-License-Identifier: Apache-2.0
 */

#include <array>

#include <criterion/criterion.h>

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

const std::array<double, 10> test_data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

using namespace villas;

// cppcheck-suppress unknownMacro
TestSuite(hist, .description = "Histogram");

Test(hist, simple) {

  Hist h(10, 2);

  for (auto td : test_data)
    h.put(td);

  cr_assert_float_eq(h.getMean(), 5.5, 1e-6, "Mean is %lf", h.getMean());
  cr_assert_float_eq(h.getVar(), 9.1666, 1e-3);
  cr_assert_float_eq(h.getStddev(), 3.027650, 1e-6);
}