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/*******************************************************
* Copyright (c) 2014, 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/data.h>
#include <af/dim4.hpp>
#include <af/traits.hpp>
#include <vector>
#include <iostream>
#include <string>
#include <testHelpers.hpp>
using std::vector;
using std::string;
using std::cout;
using std::endl;
using af::cfloat;
using af::cdouble;
template<typename T>
class Random : public ::testing::Test
{
public:
virtual void SetUp() {
}
};
// create a list of types to be tested
typedef ::testing::Types<float, cfloat, double, cdouble, int, unsigned, intl, uintl, unsigned char> TestTypes;
// register the type list
TYPED_TEST_CASE(Random, TestTypes);
template<typename T>
class Random_norm : public ::testing::Test
{
public:
virtual void SetUp() {
}
};
// create a list of types to be tested
typedef ::testing::Types<float, cfloat, double, cdouble> TestTypesNorm;
// register the type list
TYPED_TEST_CASE(Random_norm, TestTypesNorm);
template<typename T>
void randuTest(af::dim4 & dims)
{
if (noDoubleTests<T>()) return;
af_array outArray = 0;
ASSERT_EQ(AF_SUCCESS, af_randu(&outArray, dims.ndims(), dims.get(), (af_dtype) af::dtype_traits<T>::af_type));
ASSERT_EQ(af_sync(-1), AF_SUCCESS);
if(outArray != 0) af_release_array(outArray);
}
template<typename T>
void randnTest(af::dim4 &dims)
{
if (noDoubleTests<T>()) return;
af_array outArray = 0;
ASSERT_EQ(AF_SUCCESS, af_randn(&outArray, dims.ndims(), dims.get(), (af_dtype) af::dtype_traits<T>::af_type));
ASSERT_EQ(af_sync(-1), AF_SUCCESS);
if(outArray != 0) af_release_array(outArray);
}
#define RAND(d0, d1, d2, d3) \
TYPED_TEST(Random,randu_##d0##_##d1##_##d2##_##d3) \
{ \
af::dim4 dims(d0, d1, d2, d3); \
randuTest<TypeParam>(dims); \
} \
TYPED_TEST(Random_norm,randn_##d0##_##d1##_##d2##_##d3) \
{ \
af::dim4 dims(d0, d1, d2, d3); \
randnTest<TypeParam>(dims); \
} \
RAND(1024, 1024, 1, 1);
RAND( 512, 512, 1, 1);
RAND( 256, 256, 1, 1);
RAND( 128, 128, 1, 1);
RAND( 64, 64, 1, 1);
RAND( 32, 32, 1, 1);
RAND( 16, 16, 1, 1);
RAND( 8, 8, 1, 1);
RAND( 4, 4, 1, 1);
RAND( 2, 2, 2, 2);
RAND( 1, 1, 1, 1);
RAND( 256, 16, 4, 2);
RAND( 32, 16, 8, 4);
RAND( 2, 4, 16, 256);
RAND( 4, 8, 16, 32);
RAND( 10, 10, 10, 10);
RAND(1920, 1080, 1, 1);
RAND(1280, 720, 1, 1);
RAND( 640, 480, 1, 1);
RAND( 215, 24, 6, 5);
RAND( 132, 64, 23, 2);
RAND( 15, 35, 50, 3);
RAND( 77, 43, 8, 1);
RAND( 123, 45, 6, 7);
RAND( 345, 28, 9, 1);
RAND( 79, 68, 12, 6);
RAND( 45, 1, 1, 1);
template<typename T>
void randuArgsTest()
{
if (noDoubleTests<T>()) return;
dim_t ndims = 4;
dim_t dims[] = {1, 2, 3, 0};
af_array outArray = 0;
ASSERT_EQ(AF_ERR_SIZE, af_randu(&outArray, ndims, dims, (af_dtype) af::dtype_traits<char>::af_type));
ASSERT_EQ(af_sync(-1), AF_SUCCESS);
if(outArray != 0) af_release_array(outArray);
}
TYPED_TEST(Random,InvalidArgs)
{
randuArgsTest<TypeParam>();
}
////////////////////////////////////// CPP /////////////////////////////////////
//
TEST(Random, CPP)
{
if (noDoubleTests<float>()) return;
// TEST will fail if exception is thrown, which are thrown
// when only wrong inputs are thrown on bad access happens
af::dim4 dims(1, 2, 3, 1);
af::array out1 = af::randu(dims);
af::array out2 = af::randn(dims);
af::sync();
}
template<typename T>
void testSetSeed(const uintl seed0, const uintl seed1, bool is_norm = false)
{
if (noDoubleTests<T>()) return;
uintl orig_seed = af::getSeed();
const int num = 1024 * 1024;
af::dtype ty = (af::dtype)af::dtype_traits<T>::af_type;
af::setSeed(seed0);
af::array in0 = is_norm ? af::randn(num, ty) : af::randu(num, ty);
af::setSeed(seed1);
af::array in1 = is_norm ? af::randn(num, ty) : af::randu(num, ty);
af::setSeed(seed0);
af::array in2 = is_norm ? af::randn(num, ty) : af::randu(num, ty);
af::array in3 = is_norm ? af::randn(num, ty) : af::randu(num, ty);
std::vector<T> h_in0(num);
std::vector<T> h_in1(num);
std::vector<T> h_in2(num);
std::vector<T> h_in3(num);
in0.host((void *)&h_in0[0]);
in1.host((void *)&h_in1[0]);
in2.host((void *)&h_in2[0]);
in3.host((void *)&h_in3[0]);
for (int i = 0; i < num; i++) {
// Verify if same seed produces same arrays
ASSERT_EQ(h_in0[i], h_in2[i]) << "at : " << i;
// Verify different arrays created with different seeds differ
// b8 and u9 can clash because they generate a small set of values
if (ty != b8 && ty != u8) ASSERT_NE(h_in0[i], h_in1[i]);
// Verify different arrays created one after the other with same seed differ
// b8 and u9 can clash because they generate a small set of values
if (ty != b8 && ty != u8) ASSERT_NE(h_in2[i], h_in3[i]);
}
af::setSeed(orig_seed); // Reset the seed
}
TYPED_TEST(Random, setSeed)
{
testSetSeed<TypeParam>(10101, 23232, false);
}
TYPED_TEST(Random_norm, setSeed)
{
testSetSeed<TypeParam>(456, 789, true);
}
template<typename T>
void testGetSeed(const uintl seed0, const uintl seed1)
{
if (noDoubleTests<T>()) return;
uintl orig_seed = af::getSeed();
const int num = 1024;
af::dtype ty = (af::dtype)af::dtype_traits<T>::af_type;
af::setSeed(seed0);
af::array in0 = af::randu(num, ty);
ASSERT_EQ(af::getSeed(), seed0);
af::setSeed(seed1);
af::array in1 = af::randu(num, ty);
ASSERT_EQ(af::getSeed(), seed1);
af::setSeed(seed0);
af::array in2 = af::randu(num, ty);
ASSERT_EQ(af::getSeed(), seed0);
af::setSeed(orig_seed); // Reset the seed
}
TYPED_TEST(Random, getSeed)
{
testGetSeed<TypeParam>(1234, 9876);
}
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