InitPerFeature_unittest.cc

/*
 * Copyright (c) The Shogun Machine Learning Toolbox
 * Written (w) 2016 Soumyajit De
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
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#include <gtest/gtest.h>
#include <algorithm>
#include <type_traits>
#include <shogun/lib/common.h>
#include <shogun/lib/SGMatrix.h>
#include <shogun/features/Features.h>
#include <shogun/features/DenseFeatures.h>
#include <shogun/statistical_testing/internals/DataManager.h>

using namespace shogun;
using namespace internal;

TEST(InitPerFeature, assignment_and_cast_operators)
{
	const index_t dim=1;
	const index_t num_vec=1;
	const index_t num_distributions=1;

	SGMatrix<float64_t> data_p(dim, num_vec);
	data_p(0, 0)=0;
	auto feats_p=std::make_shared<DenseFeatures<float64_t>>(data_p);

	DataManager data_mgr(num_distributions);
	data_mgr.samples_at(0)=feats_p;
	const DataManager& const_data_mgr=data_mgr;

	auto stored_feats=data_mgr.samples_at(0);
	bool typecheck=std::is_same<InitPerFeature, decltype(stored_feats)>::value;
	ASSERT_TRUE(typecheck);
//	ASSERT_TRUE(feats_p==stored_feats);

	auto stored_feats2=const_data_mgr.samples_at(0);
	typecheck=std::is_same<std::shared_ptr<Features>, decltype(stored_feats2)>::value;
	ASSERT_TRUE(typecheck);
	ASSERT_TRUE(feats_p==stored_feats2);

	std::shared_ptr<Features> samples=stored_feats;
	ASSERT_TRUE(feats_p==samples);
}