AudioSegmentSampleViewTest.cpp File Reference

#include "AudioSegmentSampleView.h"
#include <catch2/catch.hpp>

Include dependency graph for AudioSegmentSampleViewTest.cpp:

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Functions
	TEST_CASE ("AudioSegmentSampleView", "Copy returns expected values when")

Function Documentation

TEST_CASE()

TEST_CASE	(	"AudioSegmentSampleView"	,
		"Copy returns expected values when"
	)

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Audacity: A Digital Audio Editor

AudioSegmentSampleViewTest.cpp

Matthieu Hodgkinson

Definition at line 15 of file AudioSegmentSampleViewTest.cpp.

{
   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 });
      }
   }
}