arrayfire/test/arrayfire_test.cpp at master · arrayfire/arrayfire · GitHub

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/*******************************************************

* This file is distributed under 3-clause BSD license.

* The complete license agreement can be obtained at:

* http://arrayfire.com/licenses/BSD-3-Clause

********************************************************/

#define EXTERN_TEMPLATE

#include <testHelpers.hpp>

#include <arrayfire.h>

#include <af/algorithm.h>

#include <af/compatible.h>

#include <af/internal.h>

#include <gtest/gtest.h>

#include <half.hpp>

#include <relative_difference.hpp>

#include <algorithm>

#include <cfloat>

#include <cmath>

#include <complex>

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include <fstream>

#include <iomanip>

#include <iterator>

#include <limits>

#include <numeric>

#include <sstream>

#include <stdexcept>

#include <string>

#include <typeinfo>

#include <utility>

#include <vector>

using af::af_cdouble;

using af::af_cfloat;

using std::vector;

bool operator==(const af_half &lhs, const af_half &rhs) {

return lhs.data_ == rhs.data_;

}

std::ostream &operator<<(std::ostream &os, const af_half &val) {

float out = *reinterpret_cast<const half_float::half *>(&val);

os << out;

return os;

}

std::ostream &operator<<(std::ostream &os, af::Backend bk) {

switch (bk) {

case AF_BACKEND_CPU: os << "AF_BACKEND_CPU"; break;

case AF_BACKEND_CUDA: os << "AF_BACKEND_CUDA"; break;

case AF_BACKEND_OPENCL: os << "AF_BACKEND_OPENCL"; break;

case AF_BACKEND_ONEAPI: os << "AF_BACKEND_ONEAPI"; break;

case AF_BACKEND_DEFAULT: os << "AF_BACKEND_DEFAULT"; break;

}

return os;

}

std::ostream &operator<<(std::ostream &os, af_err e) {

return os << af_err_to_string(e);

}

std::ostream &operator<<(std::ostream &os, af::dtype type) {

std::string name;

switch (type) {

case f32: name = "f32"; break;

case c32: name = "c32"; break;

case f64: name = "f64"; break;

case c64: name = "c64"; break;

case b8: name = "b8"; break;

case s32: name = "s32"; break;

case u32: name = "u32"; break;

case s8: name = "s8"; break;

case u8: name = "u8"; break;

case s64: name = "s64"; break;

case u64: name = "u64"; break;

case s16: name = "s16"; break;

case u16: name = "u16"; break;

case f16: name = "f16"; break;

default: assert(false && "Invalid type");

}

return os << name;

}

std::string readNextNonEmptyLine(std::ifstream &file) {

std::string result = "";

// Using a for loop to read the next non empty line

for (std::string line; std::getline(file, line);) {

result += line;

if (result != "") break;

}

// If no file has been found, throw an exception

if (result == "") {

throw std::runtime_error("Non empty lines not found in the file");

}

return result;

}

std::string getBackendName(bool lower) {

af::Backend backend = af::getActiveBackend();

switch (backend) {

case AF_BACKEND_CPU:

return lower ? std::string("cpu") : std::string("CPU");

case AF_BACKEND_CUDA:

return lower ? std::string("cuda") : std::string("CUDA");

case AF_BACKEND_OPENCL:

return lower ? std::string("opencl") : std::string("OpenCL");

case AF_BACKEND_ONEAPI:

return lower ? std::string("oneapi") : std::string("oneAPI");

default: return lower ? std::string("unknown") : std::string("Unknown");

}

std::string getTestName() {

std::string testname =

::testing::UnitTest::GetInstance()->current_test_info()->name();

return testname;

}

namespace half_float {

std::ostream &operator<<(std::ostream &os, half_float::half val) {

os << (float)val;

return os;

}

} // namespace half_float

// Called by ASSERT_ARRAYS_EQ

::testing::AssertionResult assertArrayEq(std::string aName, std::string bName,

const af::array &a, const af::array &b,

float maxAbsDiff) {

af::dtype aType = a.type();

af::dtype bType = b.type();

if (aType != bType)

return ::testing::AssertionFailure()

<< "TYPE MISMATCH: \n"

<< " Actual: " << bName << "(" << b.type() << ")\n"

<< "Expected: " << aName << "(" << a.type() << ")";

af::dtype arrDtype = aType;

if (a.dims() != b.dims())

return ::testing::AssertionFailure()

<< "SIZE MISMATCH: \n"

<< " Actual: " << bName << "([" << b.dims() << "])\n"

<< "Expected: " << aName << "([" << a.dims() << "])";

switch (arrDtype) {

case f32:

return elemWiseEq<float>(aName, bName, a, b, maxAbsDiff);

break;

case c32:

return elemWiseEq<af::cfloat>(aName, bName, a, b, maxAbsDiff);

break;

case f64:

return elemWiseEq<double>(aName, bName, a, b, maxAbsDiff);

break;

case c64:

return elemWiseEq<af::cdouble>(aName, bName, a, b, maxAbsDiff);

break;

case b8: return elemWiseEq<char>(aName, bName, a, b, maxAbsDiff); break;

case s32: return elemWiseEq<int>(aName, bName, a, b, maxAbsDiff); break;

case u32:

return elemWiseEq<uint>(aName, bName, a, b, maxAbsDiff);

break;

case s8:

return elemWiseEq<schar>(aName, bName, a, b, maxAbsDiff);

break;

case u8:

return elemWiseEq<uchar>(aName, bName, a, b, maxAbsDiff);

break;

case s64:

return elemWiseEq<long long>(aName, bName, a, b, maxAbsDiff);

break;

case u64:

return elemWiseEq<unsigned long long>(aName, bName, a, b,

maxAbsDiff);

break;

case s16:

return elemWiseEq<short>(aName, bName, a, b, maxAbsDiff);

break;

case u16:

return elemWiseEq<unsigned short>(aName, bName, a, b, maxAbsDiff);

break;

case f16:

return elemWiseEq<half_float::half>(aName, bName, a, b, maxAbsDiff);

break;

default:

return ::testing::AssertionFailure()

<< "INVALID TYPE, see enum numbers: " << bName << "("

<< b.type() << ") and " << aName << "(" << a.type() << ")";

}

return ::testing::AssertionSuccess();

}

template<typename T>

::testing::AssertionResult imageEq(std::string aName, std::string bName,

const af::array &a, const af::array &b,

float maxAbsDiff) {

std::vector<T> avec(a.elements());

a.host(avec.data());

std::vector<T> bvec(b.elements());

b.host(bvec.data());

double NRMSD = computeArraysRMSD(a.elements(), avec.data(), bvec.data());

if (NRMSD < maxAbsDiff) {

return ::testing::AssertionSuccess();

} else {

std::string test_name =

::testing::UnitTest::GetInstance()->current_test_info()->name();

std::string valid_path =

std::string(TEST_RESULT_IMAGE_DIR) + test_name + "ValidImage.png";

std::string result_path =

std::string(TEST_RESULT_IMAGE_DIR) + test_name + "ResultImage.png";

std::string diff_path =

std::string(TEST_RESULT_IMAGE_DIR) + test_name + "DiffImage.png";

// af::array img = af::join(1, a, b);

// af::Window win;

// while (!win.close()) { win.image(img); }

af::saveImage(valid_path.c_str(), a.as(f32));

af::saveImage(result_path.c_str(), b.as(f32));

af::saveImage(diff_path.c_str(), abs(a.as(f32) - b.as(f32)));

std::cout << "<DartMeasurementFile type=\"image/png\" "

"name=\"ValidImage\">"

<< valid_path << "</DartMeasurementFile>\n";

std::cout

<< "<DartMeasurementFile type=\"image/png\" name=\"TestImage\">"

<< result_path << "</DartMeasurementFile>\n";

std::cout << "<DartMeasurementFile "

<< "type=\"image/png\" name=\"DifferenceImage2\">"

<< diff_path << "</DartMeasurementFile>\n";

return ::testing::AssertionFailure()

<< "RMSD Error(" << NRMSD << ") exceeds threshold(" << maxAbsDiff

<< "): " << bName << "(" << b.type() << ") and " << aName << "("

<< a.type() << ")";

}

// Called by ASSERT_ARRAYS_EQ

::testing::AssertionResult assertImageEq(std::string aName, std::string bName,

const af::array &a, const af::array &b,

float maxAbsDiff) {

af::dtype aType = a.type();

af::dtype bType = b.type();

if (aType != bType)

return ::testing::AssertionFailure()

<< "TYPE MISMATCH: \n"

<< " Actual: " << bName << "(" << b.type() << ")\n"

<< "Expected: " << aName << "(" << a.type() << ")";

af::dtype arrDtype = aType;

if (a.dims() != b.dims())

return ::testing::AssertionFailure()

<< "SIZE MISMATCH: \n"

<< " Actual: " << bName << "([" << b.dims() << "])\n"

<< "Expected: " << aName << "([" << a.dims() << "])";

switch (arrDtype) {

case s8: return imageEq<signed char>(aName, bName, a, b, maxAbsDiff);

case u8: return imageEq<unsigned char>(aName, bName, a, b, maxAbsDiff);

case b8: return imageEq<char>(aName, bName, a, b, maxAbsDiff);

case s32: return imageEq<int>(aName, bName, a, b, maxAbsDiff);

case u32: return imageEq<unsigned int>(aName, bName, a, b, maxAbsDiff);

case f32: return imageEq<float>(aName, bName, a, b, maxAbsDiff);

case f64: return imageEq<double>(aName, bName, a, b, maxAbsDiff);

case s16: return imageEq<short>(aName, bName, a, b, maxAbsDiff);

case u16:

return imageEq<unsigned short>(aName, bName, a, b, maxAbsDiff);

case u64:

return imageEq<unsigned long long>(aName, bName, a, b, maxAbsDiff);

case s64: return imageEq<long long>(aName, bName, a, b, maxAbsDiff);

default: throw(AF_ERR_NOT_SUPPORTED);

}

return ::testing::AssertionSuccess();

}

template<>

float convert(af::half in) {

return static_cast<float>(half_float::half(in.data_));

}

template<>

af_half convert(int in) {

half_float::half h = half_float::half(in);

af_half out;

memcpy(&out, &h, sizeof(af_half));

return out;

}

template<typename inType, typename outType, typename FileElementType>

void readTests(const std::string &FileName, std::vector<af::dim4> &inputDims,

std::vector<std::vector<inType>> &testInputs,

std::vector<std::vector<outType>> &testOutputs) {

using std::vector;

std::ifstream testFile(FileName.c_str());

if (testFile.good()) {

unsigned inputCount;

testFile >> inputCount;

inputDims.resize(inputCount);

for (unsigned i = 0; i < inputCount; i++) { testFile >> inputDims[i]; }

unsigned testCount;

testFile >> testCount;

testOutputs.resize(testCount);

vector<unsigned> testSizes(testCount);

for (unsigned i = 0; i < testCount; i++) { testFile >> testSizes[i]; }

testInputs.resize(inputCount, vector<inType>(0));

for (unsigned k = 0; k < inputCount; k++) {

dim_t nElems = inputDims[k].elements();

testInputs[k].resize(nElems);

FileElementType tmp;

for (unsigned i = 0; i < nElems; i++) {

testFile >> tmp;

testInputs[k][i] = convert<inType, FileElementType>(tmp);

}

testOutputs.resize(testCount, vector<outType>(0));

for (unsigned i = 0; i < testCount; i++) {

testOutputs[i].resize(testSizes[i]);

FileElementType tmp;

for (unsigned j = 0; j < testSizes[i]; j++) {

testFile >> tmp;

testOutputs[i][j] = convert<outType, FileElementType>(tmp);

}

} else {

FAIL() << "TEST FILE NOT FOUND";

}

#define INSTANTIATE(Tin, Tout, Tfile) \

template void readTests<Tin, Tout, Tfile>( \

const std::string &FileName, std::vector<af::dim4> &inputDims, \

std::vector<std::vector<Tin>> &testInputs, \

std::vector<std::vector<Tout>> &testOutputs)

INSTANTIATE(float, float, int);

INSTANTIATE(double, float, int);

INSTANTIATE(int, float, int);

INSTANTIATE(unsigned int, float, int);

INSTANTIATE(char, float, int);

INSTANTIATE(signed char, float, int);

INSTANTIATE(unsigned char, float, int);

INSTANTIATE(short, float, int);

INSTANTIATE(unsigned short, float, int);

INSTANTIATE(long long, float, int);

INSTANTIATE(unsigned long long, float, int);

INSTANTIATE(af_cfloat, af_cfloat, int);

INSTANTIATE(double, double, int);

INSTANTIATE(af_cdouble, af_cdouble, int);

INSTANTIATE(int, int, int);

INSTANTIATE(unsigned int, unsigned int, int);

INSTANTIATE(unsigned int, unsigned int, unsigned int);

INSTANTIATE(long long, long long, int);

INSTANTIATE(unsigned long long, unsigned long long, int);

INSTANTIATE(char, char, int);

INSTANTIATE(signed char, signed char, int);

INSTANTIATE(unsigned char, unsigned char, int);

INSTANTIATE(short, short, int);

INSTANTIATE(unsigned short, unsigned short, int);

INSTANTIATE(half_float::half, half_float::half, int);

INSTANTIATE(af_half, af_half, int);

INSTANTIATE(float, int, int);

INSTANTIATE(unsigned int, int, int);

INSTANTIATE(char, int, int);

INSTANTIATE(signed char, int, int);

INSTANTIATE(unsigned char, int, int);

INSTANTIATE(short, int, int);

INSTANTIATE(unsigned short, int, int);

INSTANTIATE(signed char, unsigned short, int);

INSTANTIATE(signed char, short, int);

INSTANTIATE(signed char, unsigned char, int);

INSTANTIATE(signed char, double, int);

INSTANTIATE(unsigned char, unsigned short, int);

INSTANTIATE(unsigned char, short, int);

INSTANTIATE(unsigned char, signed char, int);

INSTANTIATE(unsigned char, double, int);

INSTANTIATE(long long, unsigned int, unsigned int);

INSTANTIATE(unsigned long long, unsigned int, unsigned int);

INSTANTIATE(int, unsigned int, unsigned int);

INSTANTIATE(short, unsigned int, unsigned int);

INSTANTIATE(unsigned short, unsigned int, unsigned int);

INSTANTIATE(char, unsigned int, unsigned int);

INSTANTIATE(signed char, unsigned int, unsigned int);

INSTANTIATE(unsigned char, unsigned int, unsigned int);

INSTANTIATE(float, unsigned int, unsigned int);

INSTANTIATE(double, unsigned int, unsigned int);

INSTANTIATE(float, unsigned int, int);

INSTANTIATE(double, unsigned int, int);

INSTANTIATE(int, unsigned int, int);

INSTANTIATE(long long, unsigned int, int);

INSTANTIATE(unsigned long long, unsigned int, int);

INSTANTIATE(char, unsigned int, int);

INSTANTIATE(signed char, unsigned int, int);

INSTANTIATE(unsigned char, unsigned int, int);

INSTANTIATE(short, unsigned int, int);

INSTANTIATE(unsigned short, unsigned int, int);

INSTANTIATE(float, char, int);

INSTANTIATE(double, char, int);

INSTANTIATE(signed char, char, int);

INSTANTIATE(unsigned char, char, int);

INSTANTIATE(short, char, int);

INSTANTIATE(unsigned short, char, int);

INSTANTIATE(int, char, int);

INSTANTIATE(unsigned int, char, int);

INSTANTIATE(char, float, float);

INSTANTIATE(int, float, float);

INSTANTIATE(unsigned int, float, float);

INSTANTIATE(short, float, float);

INSTANTIATE(signed char, float, float);

INSTANTIATE(unsigned char, float, float);

INSTANTIATE(unsigned short, float, float);

INSTANTIATE(double, float, float);

INSTANTIATE(af::af_cfloat, float, float);

INSTANTIATE(af::af_cdouble, float, float);

INSTANTIATE(long long, float, float);

INSTANTIATE(long long, double, float);

INSTANTIATE(unsigned long long, double, float);

INSTANTIATE(float, float, float);

INSTANTIATE(af_cfloat, af_cfloat, float);

INSTANTIATE(af_cfloat, af_cfloat, af_cfloat);

INSTANTIATE(af_cdouble, af_cdouble, af_cdouble);

INSTANTIATE(double, double, float);

INSTANTIATE(double, double, double);

INSTANTIATE(af_cdouble, af_cdouble, float);

INSTANTIATE(int, int, float);

INSTANTIATE(unsigned int, unsigned int, float);

INSTANTIATE(long long, long long, float);

INSTANTIATE(unsigned long long, unsigned long long, float);

INSTANTIATE(char, char, float);

INSTANTIATE(signed char, signed char, float);

INSTANTIATE(unsigned char, unsigned char, float);

INSTANTIATE(short, short, float);

INSTANTIATE(unsigned short, unsigned short, float);

INSTANTIATE(half_float::half, half_float::half, float);

INSTANTIATE(half_float::half, half_float::half, double);

INSTANTIATE(af_cdouble, af_cdouble, double);

INSTANTIATE(double, af_cdouble, float);

INSTANTIATE(float, af_cfloat, float);

INSTANTIATE(half_float::half, uint, uint);

INSTANTIATE(float, float, double);

INSTANTIATE(int, float, double);

INSTANTIATE(unsigned int, float, double);

INSTANTIATE(short, float, double);

INSTANTIATE(unsigned short, float, double);

INSTANTIATE(char, float, double);

INSTANTIATE(signed char, float, double);

INSTANTIATE(unsigned char, float, double);

INSTANTIATE(long long, double, double);

INSTANTIATE(unsigned long long, double, double);

INSTANTIATE(af_cfloat, af_cfloat, double);

INSTANTIATE(half_float::half, float, double);

#undef INSTANTIATE

bool noDoubleTests(af::dtype ty) {

bool isTypeDouble = (ty == f64) || (ty == c64);

int dev = af::getDevice();

bool isDoubleSupported = af::isDoubleAvailable(dev);

return ((isTypeDouble && !isDoubleSupported) ? true : false);

}

bool noHalfTests(af::dtype ty) {

bool isTypeHalf = (ty == f16);

int dev = af::getDevice();

bool isHalfSupported = af::isHalfAvailable(dev);

return ((isTypeHalf && !isHalfSupported) ? true : false);

}

af_half abs(af_half in) {

half_float::half in_;

// casting to void* to avoid class-memaccess warnings on windows

memcpy(static_cast<void *>(&in_), &in, sizeof(af_half));

half_float::half out_ = abs(in_);

af_half out;

memcpy(&out, &out_, sizeof(af_half));

return out;

}

af_half operator-(af_half lhs, af_half rhs) {

half_float::half lhs_;

half_float::half rhs_;

// casting to void* to avoid class-memaccess warnings on windows

memcpy(static_cast<void *>(&lhs_), &lhs, sizeof(af_half));

memcpy(static_cast<void *>(&rhs_), &rhs, sizeof(af_half));

half_float::half out = lhs_ - rhs_;

af_half o;

memcpy(&o, &out, sizeof(af_half));

return o;

}

const af::cfloat &operator+(const af::cfloat &val) { return val; }

const af::cdouble &operator+(const af::cdouble &val) { return val; }

const af_half &operator+(const af_half &val) { return val; }

// Calculate a multi-dimensional coordinates' linearized index

dim_t ravelIdx(af::dim4 coords, af::dim4 strides) {

return std::inner_product(coords.get(), coords.get() + 4, strides.get(),

0LL);

}

// Calculate a linearized index's multi-dimensonal coordinates in an

// af::array,

// given its dimension sizes and strides

af::dim4 unravelIdx(dim_t idx, af::dim4 dims, af::dim4 strides) {

af::dim4 coords;

coords[3] = idx / (strides[3]);

coords[2] = idx / (strides[2]) % dims[2];

coords[1] = idx / (strides[1]) % dims[1];

coords[0] = idx % dims[0];

return coords;

}

af::dim4 unravelIdx(dim_t idx, af::array arr) {

af::dim4 dims = arr.dims();

af::dim4 st = af::getStrides(arr);

return unravelIdx(idx, dims, st);

}

af::dim4 calcStrides(const af::dim4 &parentDim) {

af::dim4 out(1, 1, 1, 1);

dim_t *out_dims = out.get();

const dim_t *parent_dims = parentDim.get();

for (dim_t i = 1; i < 4; i++) {

out_dims[i] = out_dims[i - 1] * parent_dims[i - 1];

}

return out;

}

std::string minimalDim4(af::dim4 coords, af::dim4 dims) {

std::ostringstream os;

os << "(" << coords[0];

if (dims[1] > 1 || dims[2] > 1 || dims[3] > 1) { os << ", " << coords[1]; }

if (dims[2] > 1 || dims[3] > 1) { os << ", " << coords[2]; }

if (dims[3] > 1) { os << ", " << coords[3]; }

os << ")";

return os.str();

}

// Generates a random array. testWriteToOutputArray expects that it will

// receive the same af_array that this generates after the af_* function is

// called

void genRegularArray(TestOutputArrayInfo *metadata, const unsigned ndims,

const dim_t *const dims, const af_dtype ty) {

metadata->init(ndims, dims, ty);

}

void genRegularArray(TestOutputArrayInfo *metadata, double val,

const unsigned ndims, const dim_t *const dims,

const af_dtype ty) {

metadata->init(val, ndims, dims, ty);

}

// Generates a large, random array, and extracts a subarray for the af_*

// function to use. testWriteToOutputArray expects that the large array that

// it receives is equal to the same large array with the gold array injected

// on the same subarray location

void genSubArray(TestOutputArrayInfo *metadata, const unsigned ndims,

const dim_t *const dims, const af_dtype ty) {

const dim_t pad_size = 2;

// The large array is padded on both sides of each dimension

// Padding is only applied if the dimension is used, i.e. if dims[i] > 1

dim_t full_arr_dims[4] = {dims[0], dims[1], dims[2], dims[3]};

for (uint i = 0; i < ndims; ++i) {

full_arr_dims[i] = dims[i] + 2 * pad_size;

}

// Calculate index of sub-array. These will be used also by

// testWriteToOutputArray so that the gold sub array will be placed in

// the same location. Currently, this location is the center of the

// large array

af_seq subarr_idxs[4] = {af_span, af_span, af_span, af_span};

for (uint i = 0; i < ndims; ++i) {

af_seq idx = {pad_size, pad_size + dims[i] - 1.0, 1.0};

subarr_idxs[i] = idx;

}

metadata->init(ndims, full_arr_dims, ty, &subarr_idxs[0]);

}

void genSubArray(TestOutputArrayInfo *metadata, double val,

const unsigned ndims, const dim_t *const dims,

const af_dtype ty) {

const dim_t pad_size = 2;

// The large array is padded on both sides of each dimension

// Padding is only applied if the dimension is used, i.e. if dims[i] > 1

dim_t full_arr_dims[4] = {dims[0], dims[1], dims[2], dims[3]};

for (uint i = 0; i < ndims; ++i) {

full_arr_dims[i] = dims[i] + 2 * pad_size;

}

// Calculate index of sub-array. These will be used also by

// testWriteToOutputArray so that the gold sub array will be placed in

// the same location. Currently, this location is the center of the

// large array

af_seq subarr_idxs[4] = {af_span, af_span, af_span, af_span};

for (uint i = 0; i < ndims; ++i) {

af_seq idx = {pad_size, pad_size + dims[i] - 1.0, 1.0};

subarr_idxs[i] = idx;

}

metadata->init(val, ndims, full_arr_dims, ty, &subarr_idxs[0]);

}

// Generates a reordered array. testWriteToOutputArray expects that this

// array will still have the correct output values from the af_* function,

// even though the array was initially reordered.

void genReorderedArray(TestOutputArrayInfo *metadata, const unsigned ndims,

const dim_t *const dims, const af_dtype ty) {

// The rest of this function assumes that dims has 4 elements. Just in

// case dims has < 4 elements, use another dims array that is filled

// with 1s

dim_t all_dims[4] = {1, 1, 1, 1};

for (uint i = 0; i < ndims; ++i) { all_dims[i] = dims[i]; }

// This reorder combination will not move data around, but will simply

// call modDims and modStrides (see src/api/c/reorder.cpp).

// The output will be checked if it is still correct even with the

// modified dims and strides "hack" with no data movement

uint reorder_idxs[4] = {0, 2, 1, 3};

// Shape the output array such that the reordered output array will have

// the correct dimensions that the test asks for (i.e. must match dims

// arg)

dim_t init_dims[4] = {all_dims[0], all_dims[1], all_dims[2], all_dims[3]};

for (uint i = 0; i < 4; ++i) { init_dims[i] = all_dims[reorder_idxs[i]]; }

metadata->init(4, init_dims, ty);

af_array reordered = 0;

ASSERT_SUCCESS(af_reorder(&reordered, metadata->getOutput(),

reorder_idxs[0], reorder_idxs[1], reorder_idxs[2],

reorder_idxs[3]));

metadata->setOutput(reordered);

}

void genReorderedArray(TestOutputArrayInfo *metadata, double val,

const unsigned ndims, const dim_t *const dims,

const af_dtype ty) {

// The rest of this function assumes that dims has 4 elements. Just in

// case dims has < 4 elements, use another dims array that is filled

// with 1s

dim_t all_dims[4] = {1, 1, 1, 1};

for (uint i = 0; i < ndims; ++i) { all_dims[i] = dims[i]; }

// This reorder combination will not move data around, but will simply

// call modDims and modStrides (see src/api/c/reorder.cpp).

// The output will be checked if it is still correct even with the

// modified dims and strides "hack" with no data movement

uint reorder_idxs[4] = {0, 2, 1, 3};

// Shape the output array such that the reordered output array will have

// the correct dimensions that the test asks for (i.e. must match dims

// arg)

dim_t init_dims[4] = {all_dims[0], all_dims[1], all_dims[2], all_dims[3]};

for (uint i = 0; i < 4; ++i) { init_dims[i] = all_dims[reorder_idxs[i]]; }

metadata->init(val, 4, init_dims, ty);

af_array reordered = 0;

ASSERT_SUCCESS(af_reorder(&reordered, metadata->getOutput(),

reorder_idxs[0], reorder_idxs[1], reorder_idxs[2],

reorder_idxs[3]));

metadata->setOutput(reordered);

}

// Partner function of testWriteToOutputArray. This generates the "special"

// array that testWriteToOutputArray will use to check if the af_* function

// correctly uses an existing array as its output

void genTestOutputArray(af_array *out_ptr, const unsigned ndims,

const dim_t *const dims, const af_dtype ty,

TestOutputArrayInfo *metadata) {

switch (metadata->getOutputArrayType()) {

case FULL_ARRAY: genRegularArray(metadata, ndims, dims, ty); break;

case SUB_ARRAY: genSubArray(metadata, ndims, dims, ty); break;

case REORDERED_ARRAY:

genReorderedArray(metadata, ndims, dims, ty);

break;

default: break;

}

*out_ptr = metadata->getOutput();

}

void genTestOutputArray(af_array *out_ptr, double val, const unsigned ndims,

const dim_t *const dims, const af_dtype ty,

TestOutputArrayInfo *metadata) {

switch (metadata->getOutputArrayType()) {

case FULL_ARRAY: genRegularArray(metadata, val, ndims, dims, ty); break;

case SUB_ARRAY: genSubArray(metadata, val, ndims, dims, ty); break;

case REORDERED_ARRAY:

genReorderedArray(metadata, val, ndims, dims, ty);

break;

default: break;

}

*out_ptr = metadata->getOutput();

}

// Partner function of genTestOutputArray. This uses the same "special"

// array that genTestOutputArray generates, and checks whether the

// af_* function wrote to that array correctly

::testing::AssertionResult testWriteToOutputArray(

std::string gold_name, std::string result_name, const af_array gold,

const af_array out, TestOutputArrayInfo *metadata) {

// In the case of NULL_ARRAY, the output array starts out as null.

// After the af_* function is called, it shouldn't be null anymore

if (metadata->getOutputArrayType() == NULL_ARRAY) {

if (out == 0) {

return ::testing::AssertionFailure()

<< "Output af_array " << result_name << " is null";

}

metadata->setOutput(out);

}

// For every other case, must check if the af_array generated by

// genTestOutputArray was used by the af_* function as its output array

else {

if (metadata->getOutput() != out) {

return ::testing::AssertionFailure()

<< "af_array POINTER MISMATCH:\n"

<< " Actual: " << out << "\n"

<< "Expected: " << metadata->getOutput();

}

if (metadata->getOutputArrayType() == SUB_ARRAY) {

// There are two full arrays. One will be injected with the gold

// subarray, the other should have already been injected with the

// af_* function's output. Then we compare the two full arrays

af_array gold_full_array = metadata->getFullOutputCopy();

af_assign_seq(&gold_full_array, gold_full_array,

metadata->getSubArrayNumDims(),

metadata->getSubArrayIdxs(), gold);

return assertArrayEq(gold_name, result_name,

metadata->getFullOutputCopy(),

metadata->getFullOutput());

} else {

return assertArrayEq(gold_name, result_name, gold, out);

}

// Called by ASSERT_SPECIAL_ARRAYS_EQ

::testing::AssertionResult assertArrayEq(std::string aName, std::string bName,

std::string metadataName,

const af_array a, const af_array b,

TestOutputArrayInfo *metadata) {

UNUSED(metadataName);

return testWriteToOutputArray(aName, bName, a, b, metadata);

}

// To support C API

::testing::AssertionResult assertArrayEq(std::string aName, std::string bName,

const af_array a, const af_array b) {

af_array aa = 0, bb = 0;

af_retain_array(&aa, a);

af_retain_array(&bb, b);

af::array aaa(aa);

af::array bbb(bb);

return assertArrayEq(aName, bName, aaa, bbb, 0.0f);

}

// Called by ASSERT_ARRAYS_NEAR

::testing::AssertionResult assertArrayNear(std::string aName, std::string bName,

std::string maxAbsDiffName,

const af::array &a,

const af::array &b,

float maxAbsDiff) {

UNUSED(maxAbsDiffName);

return assertArrayEq(aName, bName, a, b, maxAbsDiff);

}

// Called by ASSERT_IMAGES_NEAR

::testing::AssertionResult assertImageNear(std::string aName, std::string bName,

std::string maxAbsDiffName,

const af_array &a, const af_array &b,

float maxAbsDiff) {

UNUSED(maxAbsDiffName);

af_array aa = 0, bb = 0;

af_retain_array(&aa, a);

af_retain_array(&bb, b);

af::array aaa(aa);

af::array bbb(bb);

return assertImageEq(aName, bName, aaa, bbb, maxAbsDiff);

}

// Called by ASSERT_IMAGES_NEAR

::testing::AssertionResult assertImageNear(std::string aName, std::string bName,

std::string maxAbsDiffName,

const af::array &a,

const af::array &b,

float maxAbsDiff) {

UNUSED(maxAbsDiffName);

return assertImageEq(aName, bName, a, b, maxAbsDiff);

}

// To support C API

::testing::AssertionResult assertArrayNear(std::string aName, std::string bName,

std::string maxAbsDiffName,

const af_array a, const af_array b,

float maxAbsDiff) {

af_array aa = 0, bb = 0;

af_retain_array(&aa, a);

af_retain_array(&bb, b);

af::array aaa(aa);

af::array bbb(bb);

return assertArrayNear(aName, bName, maxAbsDiffName, aaa, bbb, maxAbsDiff);

}

void cleanSlate() {

const size_t step_bytes = 1024;

size_t alloc_bytes, alloc_buffers;

size_t lock_bytes, lock_buffers;

af::deviceGC();

af::deviceMemInfo(&alloc_bytes, &alloc_buffers, &lock_bytes, &lock_buffers);

ASSERT_EQ(0u, alloc_buffers);

ASSERT_EQ(0u, lock_buffers);

ASSERT_EQ(0u, alloc_bytes);

ASSERT_EQ(0u, lock_bytes);

af::setMemStepSize(step_bytes);

ASSERT_EQ(af::getMemStepSize(), step_bytes);

}

template<typename inType, typename outType>

void readTestsFromFile(const std::string &FileName,

std::vector<af::dim4> &inputDims,

std::vector<std::vector<inType>> &testInputs,

std::vector<std::vector<outType>> &testOutputs) {

using std::vector;

std::ifstream testFile(FileName.c_str());

if (testFile.good()) {

unsigned inputCount;

testFile >> inputCount;

for (unsigned i = 0; i < inputCount; i++) {

af::dim4 temp(1);

testFile >> temp;

inputDims.push_back(temp);

}

unsigned testCount;

testFile >> testCount;

testOutputs.resize(testCount);

vector<unsigned> testSizes(testCount);

for (unsigned i = 0; i < testCount; i++) { testFile >> testSizes[i]; }

testInputs.resize(inputCount, vector<inType>(0));

for (unsigned k = 0; k < inputCount; k++) {

dim_t nElems = inputDims[k].elements();

testInputs[k].resize(nElems);

inType tmp;

for (unsigned i = 0; i < nElems; i++) {

testFile >> tmp;

testInputs[k][i] = tmp;

}

testOutputs.resize(testCount, vector<outType>(0));

for (unsigned i = 0; i < testCount; i++) {

testOutputs[i].resize(testSizes[i]);

outType tmp;

for (unsigned j = 0; j < testSizes[i]; j++) {

testFile >> tmp;

testOutputs[i][j] = tmp;

}

} else {

FAIL() << "TEST FILE NOT FOUND";

}

#define INSTANTIATE(Ti, To) \

template void readTestsFromFile<Ti, To>( \

const std::string &FileName, std::vector<af::dim4> &inputDims, \

std::vector<std::vector<Ti>> &testInputs, \

std::vector<std::vector<To>> &testOutputs)

INSTANTIATE(float, float);

INSTANTIATE(float, af_cfloat);

INSTANTIATE(af_cfloat, af_cfloat);

INSTANTIATE(double, double);

INSTANTIATE(double, af_cdouble);

INSTANTIATE(af_cdouble, af_cdouble);

INSTANTIATE(int, float);

#undef INSTANTIATE

template<typename outType>

void readImageTests(const std::string &pFileName,

std::vector<af::dim4> &pInputDims,

std::vector<std::string> &pTestInputs,

std::vector<std::vector<outType>> &pTestOutputs) {

using std::vector;

std::ifstream testFile(pFileName.c_str());

if (testFile.good()) {

unsigned inputCount;

testFile >> inputCount;

for (unsigned i = 0; i < inputCount; i++) {

af::dim4 temp(1);

testFile >> temp;

pInputDims.push_back(temp);

}

unsigned testCount;

testFile >> testCount;

pTestOutputs.resize(testCount);

vector<unsigned> testSizes(testCount);

for (unsigned i = 0; i < testCount; i++) { testFile >> testSizes[i]; }

pTestInputs.resize(inputCount, "");

for (unsigned k = 0; k < inputCount; k++) {

pTestInputs[k] = readNextNonEmptyLine(testFile);

}

pTestOutputs.resize(testCount, vector<outType>(0));

for (unsigned i = 0; i < testCount; i++) {

pTestOutputs[i].resize(testSizes[i]);

outType tmp;

for (unsigned j = 0; j < testSizes[i]; j++) {

testFile >> tmp;

pTestOutputs[i][j] = tmp;

}

} else {

FAIL() << "TEST FILE NOT FOUND";

}

#define INSTANTIATE(To) \

template void readImageTests<To>( \

const std::string &pFileName, std::vector<af::dim4> &pInputDims, \

std::vector<std::string> &pTestInputs, \

std::vector<std::vector<To>> &pTestOutputs)

INSTANTIATE(float);

#undef INSTANTIATE

void readImageTests(const std::string &pFileName,

std::vector<af::dim4> &pInputDims,

std::vector<std::string> &pTestInputs,

std::vector<dim_t> &pTestOutSizes,

std::vector<std::string> &pTestOutputs) {

using std::vector;

std::ifstream testFile(pFileName.c_str());

if (testFile.good()) {

unsigned inputCount;

testFile >> inputCount;

for (unsigned i = 0; i < inputCount; i++) {

af::dim4 temp(1);

testFile >> temp;

pInputDims.push_back(temp);

}

unsigned testCount;

testFile >> testCount;

pTestOutputs.resize(testCount);

pTestOutSizes.resize(testCount);

for (unsigned i = 0; i < testCount; i++) {

testFile >> pTestOutSizes[i];

}

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