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/*
* Copyright 2008-2013 NVIDIA Corporation
* Modifications Copyright© 2019-2024 Advanced Micro Devices, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/complex.h>
#include <thrust/host_vector.h>
#include <gtest/gtest.h>
#include <cfloat>
#include <cmath>
template <typename T1, typename T2>
testing::AssertionResult CmpHelperEQQuite(const char* lhs_expression,
const char* rhs_expression,
const T1& lhs,
const T2& rhs)
{
if(lhs == rhs)
{
return testing::AssertionSuccess();
}
testing::Message msg;
msg << "Expressions during equality check:";
msg << "\n " << lhs_expression;
msg << "\n " << rhs_expression;
return testing::AssertionFailure() << msg;
}
#define ASSERT_EQ_QUIET(val1, val2) ASSERT_PRED_FORMAT2(CmpHelperEQQuite, val1, val2)
template <typename T>
testing::AssertionResult ComplexCompare(const char* expr1,
const char* expr2,
const char* abs_error_expr,
thrust::complex<T> val1,
thrust::complex<T> val2,
thrust::complex<double> abs_error)
{
double real_diff;
if(std::isinf(val1.real()))
{
real_diff = std::isinf(val2.real()) ? 0.0 : std::numeric_limits<double>::infinity();
}
else if(std::isnan(val1.real()))
{
real_diff = std::isnan(val2.real()) ? 0.0 : std::numeric_limits<double>::infinity();
}
else
{
real_diff = fabs((double)val1.real() - (double)val2.real());
}
double imag_diff;
if(std::isinf(val1.imag()))
{
imag_diff = std::isinf(val2.imag()) ? 0.0 : std::numeric_limits<double>::infinity();
}
else if(std::isnan(val1.imag()))
{
imag_diff = std::isnan(val2.imag()) ? 0.0 : std::numeric_limits<double>::infinity();
}
else
{
imag_diff = fabs((double)val1.imag() - (double)val2.imag());
}
if(real_diff == 0 && imag_diff == 0)
return testing::AssertionSuccess();
const thrust::complex<double> diff(real_diff, imag_diff);
const thrust::complex<double> tol_diff(
0.1 * (fabs(val1.real() + val2.real()) + abs_error.real()),
0.1 * (fabs(val1.imag() + val2.imag()) + abs_error.imag()));
if((diff.real() != 0 && diff.real() > tol_diff.real())
|| (diff.imag() != 0 && diff.imag() > tol_diff.imag()))
return testing::AssertionFailure()
<< "The difference between " << expr1 << " and " << expr2 << " is " << diff
<< ", which exceeds " << abs_error_expr << ", where\n"
<< expr1 << " evaluates to " << val1 << ",\n"
<< expr2 << " evaluates to " << val2 << ", and\n"
<< abs_error_expr << " evaluates to " << tol_diff << ".";
else
return testing::AssertionSuccess();
}
template <typename T>
testing::AssertionResult ComplexNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
thrust::complex<T> val1,
thrust::complex<T> val2,
thrust::complex<double> abs_error)
{
return ComplexCompare(expr1, expr2, abs_error_expr, val1, val2, abs_error);
}
template <typename T>
testing::AssertionResult ComplexVectorNearPredFormat(const char* expr1,
const char* expr2,
const char* abs_error_expr,
thrust::host_vector<T> val1,
thrust::device_vector<T> val2,
thrust::complex<double> abs_error)
{
thrust::host_vector<T> vector1(val1);
thrust::host_vector<T> vector2(val2);
if(vector1.size() != vector2.size())
{
return testing::AssertionFailure()
<< "The difference between " << expr1 << " and " << expr2
<< " are the sizes: " << vector1.size() << ", " << vector2.size() << ".";
}
for(unsigned int i = 0; i < vector1.size(); i++)
{
testing::AssertionResult result
= ComplexCompare(expr1, expr2, abs_error_expr, vector1[i], vector2[i], abs_error);
if(testing::AssertionSuccess() != result)
return result;
}
return testing::AssertionSuccess();
}
#define ASSERT_NEAR_COMPLEX_ERROR(val1, val2, abs_error) \
ASSERT_PRED_FORMAT3( \
ComplexNearPredFormat<typename decltype(val1)::value_type>, val1, val2, abs_error)
#define ASSERT_NEAR_COMPLEX(val1, val2) \
ASSERT_NEAR_COMPLEX_ERROR( \
val1, \
val2, \
thrust::complex<T>(std::numeric_limits<T>::epsilon(), std::numeric_limits<T>::epsilon()))
#define ASSERT_NEAR_COMPLEX_VECTOR_ERROR(val1, val2, abs_error) \
ASSERT_PRED_FORMAT3( \
ComplexVectorNearPredFormat<typename decltype(val1)::value_type>, val1, val2, abs_error)
#define ASSERT_NEAR_COMPLEX_VECTOR(val1, val2) \
ASSERT_NEAR_COMPLEX_VECTOR_ERROR( \
val1, \
val2, \
thrust::complex<T>(std::numeric_limits<T>::epsilon(), std::numeric_limits<T>::epsilon()))
template <typename T>
testing::AssertionResult
bitwise_equal(const char* a_expr, const char* b_expr, const T& a, const T& b)
{
if(std::memcmp(&a, &b, sizeof(T)) == 0)
{
return testing::AssertionSuccess();
}
// googletest's operator<< doesn't see the above overload for int128_t
std::stringstream a_str;
std::stringstream b_str;
a_str << std::hexfloat << a;
b_str << std::hexfloat << b;
return testing::AssertionFailure()
<< "Expected strict/bitwise equality of these values: " << std::endl
<< " " << a_expr << ": " << std::hexfloat << a_str.str() << std::endl
<< " " << b_expr << ": " << std::hexfloat << b_str.str() << std::endl;
}
#define ASSERT_BITWISE_EQ(a, b) ASSERT_PRED_FORMAT2(bitwise_equal, a, b)
template <typename IterA, typename IterB>
void assert_bit_eq(IterA result_begin, IterA result_end, IterB expected_begin, IterB expected_end)
{
using value_a_t = typename std::iterator_traits<IterA>::value_type;
using value_b_t = typename std::iterator_traits<IterB>::value_type;
ASSERT_EQ(std::distance(result_begin, result_end), std::distance(expected_begin, expected_end));
auto result_it = result_begin;
auto expected_it = expected_begin;
for(size_t index = 0; result_it != result_end; ++result_it, ++expected_it, ++index)
{
// The cast is needed, because the argument can be an std::vector<bool> iterator, which's operator*
// returns a proxy object that must be converted to bool
const auto result = static_cast<value_a_t>(*result_it);
const auto expected = static_cast<value_b_t>(*expected_it);
ASSERT_BITWISE_EQ(result, expected) << "where index = " << index;
}
}
template <typename T>
void assert_bit_eq(const thrust::host_vector<T>& result, const thrust::host_vector<T>& expected)
{
assert_bit_eq(result.begin(), result.end(), expected.begin(), expected.end());
}
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