wehub-resource-sync
147 lines
4.7 KiB
C++
147 lines
4.7 KiB
C++
// Copyright (c) 2026 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <ATen/Functions.h>
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#include <ATen/core/TensorBody.h>
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#include <ATen/cuda/EmptyTensor.h>
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#include <ATen/native/cuda/Resize.h>
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#include <ATen/ops/_local_scalar_dense.h>
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#include <ATen/ops/tensor.h>
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#include <c10/core/ScalarType.h>
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#include <c10/core/TensorOptions.h>
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#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
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#include <c10/cuda/CUDAFunctions.h>
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#include <c10/cuda/CUDAGuard.h>
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#endif
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#include "ATen/ATen.h"
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#include "gtest/gtest.h"
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#include "paddle/phi/common/bfloat16.h"
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#include "paddle/phi/common/float16.h"
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#include "torch/all.h"
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// ============================================================
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// Tests for at::_local_scalar_dense()
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// ============================================================
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TEST(LocalScalarDenseTest, Float32_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({2.5f}, at::kFloat);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_NEAR(s.to<float>(), 2.5f, 1e-6f);
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}
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TEST(LocalScalarDenseTest, Float64_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({3.141592653589793}, at::kDouble);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_NEAR(s.to<double>(), 3.141592653589793, 1e-12);
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}
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TEST(LocalScalarDenseTest, Float16_ReturnsCorrectValue) {
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// Create FP16 tensor from float, then read back via _local_scalar_dense.
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at::Tensor t = at::tensor({1.5f}, at::kHalf);
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at::Scalar s = at::_local_scalar_dense(t);
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// Float16 has ~3 significant decimal digits.
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ASSERT_NEAR(s.to<float>(), 1.5f, 1e-2f);
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}
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TEST(LocalScalarDenseTest, BFloat16_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({1.0f}, at::kBFloat16);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_NEAR(s.to<float>(), 1.0f, 1e-2f);
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}
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TEST(LocalScalarDenseTest, Int8_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({static_cast<int8_t>(-7)}, at::kChar);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<int8_t>(), static_cast<int8_t>(-7));
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}
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TEST(LocalScalarDenseTest, Int16_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({static_cast<int16_t>(300)}, at::kShort);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<int16_t>(), static_cast<int16_t>(300));
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}
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TEST(LocalScalarDenseTest, Int32_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({42}, at::kInt);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<int32_t>(), 42);
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}
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TEST(LocalScalarDenseTest, Int64_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({static_cast<int64_t>(9876543210LL)}, at::kLong);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<int64_t>(), 9876543210LL);
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}
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TEST(LocalScalarDenseTest, UInt8_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({static_cast<uint8_t>(255)}, at::kByte);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<uint8_t>(), static_cast<uint8_t>(255));
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}
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TEST(LocalScalarDenseTest, Bool_True_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({true}, at::kBool);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_TRUE(s.to<bool>());
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}
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TEST(LocalScalarDenseTest, Bool_False_ReturnsCorrectValue) {
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at::Tensor t = at::tensor({false}, at::kBool);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_FALSE(s.to<bool>());
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}
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TEST(LocalScalarDenseTest, NegativeValue_Float) {
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at::Tensor t = at::tensor({-99.0f}, at::kFloat);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_NEAR(s.to<float>(), -99.0f, 1e-5f);
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}
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TEST(LocalScalarDenseTest, ZeroValue_Int32) {
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at::Tensor t = at::tensor({0}, at::kInt);
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_EQ(s.to<int32_t>(), 0);
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}
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#if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
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TEST(LocalScalarDenseTest, GPU_Float32_ReturnsCorrectValue) {
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// _local_scalar_dense must copy to CPU when the tensor is on GPU.
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at::Tensor t = at::tensor(
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{7.0f},
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at::TensorOptions().dtype(at::kFloat).device(c10::Device(c10::kCUDA, 0)));
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at::Scalar s = at::_local_scalar_dense(t);
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ASSERT_NEAR(s.to<float>(), 7.0f, 1e-5f);
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}
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#endif
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TEST(LocalScalarDenseTest, EmptyTensor_ThrowsCheck) {
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// Passing an empty tensor should trigger PD_CHECK in the implementation.
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at::Tensor t = at::empty({0}, at::kFloat);
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ASSERT_THROW(at::_local_scalar_dense(t), std::exception);
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}
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