libopenshot/tests/ReaderBase.cpp

/**
 * @file
 * @brief Unit tests for openshot::ReaderBase
 * @author Jonathan Thomas <jonathan@openshot.org>
 *
 * @ref License
 */

// Copyright (c) 2008-2019 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later

#include <memory>
#include <string>

#include "openshot_catch.h"

#include "ReaderBase.h"
#include "CacheBase.h"
#include "Frame.h"
#include "Json.h"

using namespace openshot;

// Since it is not possible to instantiate an abstract class, this test creates
// a new derived class, in order to test the base class file info struct.
TEST_CASE( "derived class", "[libopenshot][readerbase]" )
{
	// Create a new derived class from type ReaderBase
	class TestReader : public ReaderBase
	{
	public:
		TestReader() { };
		CacheBase* GetCache() { return nullptr; };
		std::shared_ptr<Frame> GetFrame(int64_t number) { std::shared_ptr<Frame> f(new Frame()); return f; }
		void Close() { };
		void Open() { };
		std::string Json() const { return ""; };
		void SetJson(std::string value) { };
		Json::Value JsonValue() const { return Json::Value("{}"); };
		void SetJsonValue(Json::Value root) { };
		bool IsOpen() { return true; };
		std::string Name() { return "TestReader"; };
	};

	// Create an instance of the derived class
	TestReader t1;

	// Validate the new class
	CHECK(t1.Name() == "TestReader");

	t1.Close();
	t1.Open();
	CHECK(t1.IsOpen() == true);

	CHECK(t1.GetCache() == nullptr);

	t1.SetJson("{ }");
	t1.SetJsonValue(Json::Value("{}"));
	CHECK(t1.Json() == "");
	auto json = t1.JsonValue();
	CHECK(Json::Value("{}") == json);

	auto f = t1.GetFrame(1);

	REQUIRE(f != nullptr);
	CHECK(f->number == 1);

	// Check some of the default values of the FileInfo struct on the base class
	CHECK_FALSE(t1.info.has_audio);
	CHECK_FALSE(t1.info.has_audio);
	CHECK(t1.info.duration == Approx(0.0f).margin(0.00001));
	CHECK(t1.info.height == 0);
	CHECK(t1.info.width == 0);
	CHECK(t1.info.fps.num == 1);
	CHECK(t1.info.fps.den == 1);
}