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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
Audacity: A Digital Audio Editor
AudioSegmentSampleViewTest.cpp
Matthieu Hodgkinson
**********************************************************************/
#include "AudioSegmentSampleView.h"
#include <catch2/catch.hpp>
TEST_CASE("AudioSegmentSampleView", "Copy returns expected values when")
{
SECTION("AudioSegmentSampleView is silent")
{
AudioSegmentSampleView sut { 3 };
std::vector<float> buffer(4);
std::fill(buffer.begin(), buffer.end(), 1.f);
SECTION("and asked MORE values than it holds.")
{
sut.Copy(buffer.data(), 4u);
REQUIRE(buffer == std::vector<float> { 0.f, 0.f, 0.f, 0.f });
}
SECTION("and asked FEWER values than it holds.")
{
sut.Copy(buffer.data(), 2u);
REQUIRE(buffer == std::vector<float> { 0.f, 0.f, 1.f, 1.f });
}
}
SECTION("AudioSegmentSampleView is NOT silent")
{
const auto segment1 = std::make_shared<std::vector<float>>(
std::vector<float> { 1.f, 2.f, 3.f });
const auto segment2 = std::make_shared<std::vector<float>>(
std::vector<float> { 4.f, 5.f, 6.f });
constexpr auto start = 2u;
constexpr auto length = 3u;
AudioSegmentSampleView sut { { segment1, segment2 }, start, length };
SECTION("and asked MORE values than it holds.")
{
std::vector<float> out(4u);
std::fill(out.begin(), out.end(), 123.f);
sut.Copy(out.data(), out.size());
REQUIRE(out == std::vector<float> { 3.f, 4.f, 5.f, 0.f });
}
SECTION("and asked FEWER values than it holds.")
{
std::vector<float> out(2u);
sut.Copy(out.data(), out.size());
REQUIRE(out == std::vector<float> { 3.f, 4.f });
}
}
}
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