--- /dev/null
+// Copyright 2014 BVLC and contributors.
+
+#include <cmath>
+#include <cstring>
+#include <cfloat>
+#include <vector>
+
+#include "cuda_runtime.h"
+#include "gtest/gtest.h"
+#include "caffe/blob.hpp"
+#include "caffe/common.hpp"
+#include "caffe/filler.hpp"
+#include "caffe/vision_layers.hpp"
+
+#include "caffe/test/test_caffe_main.hpp"
+
+namespace caffe {
+
+extern cudaDeviceProp CAFFE_TEST_CUDA_PROP;
+
+template <typename Dtype>
+class AccuracyLayerTest : public ::testing::Test {
+ protected:
+ AccuracyLayerTest()
+ : blob_bottom_data_(new Blob<Dtype>(2, 10, 1, 1)),
+ blob_bottom_label_(new Blob<Dtype>(2, 1, 1, 1)),
+ blob_top_(new Blob<Dtype>()),
+ top_k_(3) {
+ // fill the probability values
+ FillerParameter filler_param;
+ GaussianFiller<Dtype> filler(filler_param);
+ filler.Fill(this->blob_bottom_data_);
+
+ // set the labels; first label is set to max-probability index
+ Dtype m_val = -FLT_MAX;
+ int m_id = 0;
+ for (int i = 0; i < 10; i++)
+ if (blob_bottom_data_->data_at(0, i, 0, 0) > m_val) {
+ m_val = blob_bottom_data_->data_at(0, i, 0, 0);
+ m_id = i;
+ }
+ Dtype* label_data = blob_bottom_label_->mutable_cpu_data();
+ int offset = blob_bottom_label_->offset(0);
+ label_data[offset] = m_id;
+
+ // set the labels; first label is set to min-probability index
+ m_val = FLT_MAX;
+ m_id = 0;
+ for (int i = 0; i < 10; i++)
+ if (blob_bottom_data_->data_at(1, i, 0, 0) < m_val) {
+ m_val = blob_bottom_data_->data_at(1, i, 0, 0);
+ m_id = i;
+ }
+ offset = blob_bottom_label_->offset(1);
+ label_data[offset] = m_id;
+
+ blob_bottom_vec_.push_back(blob_bottom_data_);
+ blob_bottom_vec_.push_back(blob_bottom_label_);
+ blob_top_vec_.push_back(blob_top_);
+ }
+ virtual ~AccuracyLayerTest() {
+ delete blob_bottom_data_;
+ delete blob_bottom_label_;
+ delete blob_top_;
+ }
+ Blob<Dtype>* const blob_bottom_data_;
+ Blob<Dtype>* const blob_bottom_label_;
+ Blob<Dtype>* const blob_top_;
+ vector<Blob<Dtype>*> blob_bottom_vec_;
+ vector<Blob<Dtype>*> blob_top_vec_;
+ int top_k_;
+};
+
+typedef ::testing::Types<float, double> Dtypes;
+TYPED_TEST_CASE(AccuracyLayerTest, Dtypes);
+
+TYPED_TEST(AccuracyLayerTest, TestForwardCPU) {
+ LayerParameter layer_param;
+ AccuracyParameter* accuracy_param = layer_param.mutable_accuracy_param();
+ accuracy_param->set_top_k(this->top_k_);
+ Caffe::set_mode(Caffe::CPU);
+ AccuracyLayer<TypeParam> layer(layer_param);
+ layer.SetUp(this->blob_bottom_vec_, &(this->blob_top_vec_));
+ layer.Forward(this->blob_bottom_vec_, &(this->blob_top_vec_));
+
+ // Output accuracy should be ~0.5
+ EXPECT_NEAR(this->blob_top_->data_at(0, 0, 0, 0), 0.5, 1e-4);
+}
+
+} // namespace caffe