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/*******************************************************
* Copyright (c) 2015, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <gtest/gtest.h>
#include <arrayfire.h>
#include <af/dim4.hpp>
#include <af/traits.hpp>
#include <string>
#include <vector>
#include <ctime>
#include <iostream>
#include <algorithm>
#include <testHelpers.hpp>
using namespace af;
template<typename T>
class CorrelationCoefficient : public ::testing::Test
{
public:
virtual void SetUp() {}
};
// create a list of types to be tested
typedef ::testing::Types<float, double, int, uint, intl, uintl, char, uchar> TestTypes;
// register the type list
TYPED_TEST_CASE(CorrelationCoefficient, TestTypes);
template<typename T>
struct f32HelperType {
typedef typename cond_type<is_same_type<T, double>::value,
double,
float>::type type;
};
template<typename T>
struct c32HelperType {
typedef typename cond_type<is_same_type<T, cfloat>::value,
cfloat,
typename f32HelperType<T>::type >::type type;
};
template<typename T>
struct elseType {
typedef typename cond_type< is_same_type<T, uintl>::value ||
is_same_type<T, intl> ::value,
double,
T>::type type;
};
template<typename T>
struct ccOutType {
typedef typename cond_type< is_same_type<T, float> ::value ||
is_same_type<T, int> ::value ||
is_same_type<T, uint> ::value ||
is_same_type<T, uchar> ::value ||
is_same_type<T, short> ::value ||
is_same_type<T, ushort> ::value ||
is_same_type<T, char> ::value,
float,
typename elseType<T>::type>::type type;
};
TYPED_TEST(CorrelationCoefficient, All)
{
typedef typename ccOutType<TypeParam>::type outType;
if (noDoubleTests<TypeParam>()) return;
if (noDoubleTests<outType>()) return;
std::vector<af::dim4> numDims;
std::vector<std::vector<int> > in;
std::vector<std::vector<float> > tests;
readTestsFromFile<int,float>(std::string(TEST_DIR "/corrcoef/mat_10x10_scalar.test"),
numDims, in, tests);
std::vector<TypeParam> input1(in[0].begin(), in[0].end());
std::vector<TypeParam> input2(in[1].begin(), in[1].end());
array a(numDims[0], &(input1.front()));
array b(numDims[1], &(input2.front()));
outType c = corrcoef<outType>(a, b);
std::vector<outType> currGoldBar(tests[0].begin(), tests[0].end());
ASSERT_NEAR(::real(currGoldBar[0]), ::real(c), 1.0e-3);
ASSERT_NEAR(::imag(currGoldBar[0]), ::imag(c), 1.0e-3);
}
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