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/*
* Copyright 2008-2013 NVIDIA Corporation
* Modifications Copyright© 2019 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/extrema.h>
#include <thrust/functional.h>
#include <thrust/iterator/discard_iterator.h>
#include <thrust/iterator/retag.h>
#include <thrust/set_operations.h>
#include <thrust/sort.h>
#include "test_header.hpp"
TESTS_DEFINE(SetUnionDescendingTests, FullTestsParams);
TESTS_DEFINE(SetUnionDescendingPrimitiveTests, NumericalTestsParams);
TYPED_TEST(SetUnionDescendingTests, TestSetUnionDescendingSimple)
{
using Vector = typename TestFixture::input_type;
using Policy = typename TestFixture::execution_policy;
using Iterator = typename Vector::iterator;
using T = typename Vector::value_type;
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
Vector a(3), b(4);
a[0] = 4;
a[1] = 2;
a[2] = 0;
b[0] = 4;
b[1] = 3;
b[2] = 3;
b[3] = 0;
Vector ref(5);
ref[0] = 4;
ref[1] = 3;
ref[2] = 3;
ref[3] = 2;
ref[4] = 0;
Vector result(5);
Iterator end = thrust::set_union(
Policy{}, a.begin(), a.end(), b.begin(), b.end(), result.begin(), thrust::greater<T>());
EXPECT_EQ(result.end(), end);
ASSERT_EQ(ref, result);
}
TYPED_TEST(SetUnionDescendingPrimitiveTests, TestSetUnionDescending)
{
using T = typename TestFixture::input_type;
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
for(auto size : get_sizes())
{
SCOPED_TRACE(testing::Message() << "with size= " << size);
for(auto seed : get_seeds())
{
SCOPED_TRACE(testing::Message() << "with seed= " << seed);
thrust::host_vector<T> temp = get_random_data<T>(
2 * size, std::numeric_limits<T>::min(), std::numeric_limits<T>::max(), seed);
thrust::host_vector<T> h_a(temp.begin(), temp.begin() + size);
thrust::host_vector<T> h_b(temp.begin() + size, temp.end());
thrust::sort(h_a.begin(), h_a.end(), thrust::greater<T>());
thrust::sort(h_b.begin(), h_b.end(), thrust::greater<T>());
thrust::device_vector<T> d_a = h_a;
thrust::device_vector<T> d_b = h_b;
thrust::host_vector<T> h_result(h_a.size() + h_b.size());
thrust::device_vector<T> d_result(h_result.size());
typename thrust::host_vector<T>::iterator h_end;
typename thrust::device_vector<T>::iterator d_end;
h_end = thrust::set_union(h_a.begin(),
h_a.end(),
h_b.begin(),
h_b.end(),
h_result.begin(),
thrust::greater<T>());
h_result.erase(h_end, h_result.end());
d_end = thrust::set_union(d_a.begin(),
d_a.end(),
d_b.begin(),
d_b.end(),
d_result.begin(),
thrust::greater<T>());
d_result.erase(d_end, d_result.end());
ASSERT_EQ(h_result, d_result);
}
}
}
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