/*
  Copyright © 2017 Hasan Yavuz Özderya

  This file is part of serialplot.

  serialplot 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.

  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.
*/

#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
#include "catch.hpp"

#include "datachunk.h"

TEST_CASE("DataChunk created empty", "[memory]")
{
    DataChunk c(0, 1000);
    REQUIRE(c.size() == 0);
    REQUIRE(c.capacity() == 1000);
    REQUIRE(c.start() == 0);
    REQUIRE(c.end() == 0);
    REQUIRE_FALSE(c.isFull());
    REQUIRE(c.left() == 1000);
}

TEST_CASE("adding data to DataChunk", "[memory]")
{
    DataChunk c(0, 1000);
    double samples[10] = {1,2,3,4,5,6,7,8,9,10};
    c.addSamples(samples, 10);

    REQUIRE(c.size() == 10);
    REQUIRE(c.capacity() == 1000);
    REQUIRE(c.start() == 0);
    REQUIRE(c.end() == 10);
    REQUIRE(c.left() == 990);

    for (int i = 0; i < 10; i++)
    {
        REQUIRE(c.sample(i) == samples[i]);
    }

    REQUIRE(c.min() == 1);
    REQUIRE(c.max() == 10);
    REQUIRE(c.avg() == Approx(5.5));
    REQUIRE(c.meanSquare() == Approx(38.5));
}

TEST_CASE("filling data chunk", "[memory]")
{
    DataChunk c(0, 1000);

    for (int i = 0; i < 1000; i++)
    {
        double sample = i + 1;
        c.addSamples(&sample, 1);
    }

    REQUIRE(c.size() == 1000);
    REQUIRE(c.capacity() == 1000);
    REQUIRE(c.start() == 0);
    REQUIRE(c.end() == 1000);
    REQUIRE(c.left() == 0);

    REQUIRE(c.min() == 1);
    REQUIRE(c.max() == 1000);
    REQUIRE(c.avg() == Approx(500.5));
    REQUIRE(c.meanSquare() == Approx(333833.5));
}