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test_concat_layer.cpp
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#include <cstring>
#include <vector>
#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"
#include "caffe/test/test_gradient_check_util.hpp"
namespace caffe {
template <typename TypeParam>
class ConcatLayerTest : public MultiDeviceTest<TypeParam> {
typedef typename TypeParam::Dtype Dtype;
protected:
ConcatLayerTest()
: blob_bottom_0_(new Blob<Dtype>(2, 3, 6, 5)),
blob_bottom_1_(new Blob<Dtype>(2, 5, 6, 5)),
blob_bottom_2_(new Blob<Dtype>(5, 3, 6, 5)),
blob_top_(new Blob<Dtype>()) {}
virtual void SetUp() {
// fill the values
shared_ptr<ConstantFiller<Dtype> > filler;
FillerParameter filler_param;
filler_param.set_value(1.);
filler.reset(new ConstantFiller<Dtype>(filler_param));
filler->Fill(this->blob_bottom_0_);
filler_param.set_value(2.);
filler.reset(new ConstantFiller<Dtype>(filler_param));
filler->Fill(this->blob_bottom_1_);
filler_param.set_value(3.);
filler.reset(new ConstantFiller<Dtype>(filler_param));
filler->Fill(this->blob_bottom_2_);
blob_bottom_vec_0_.push_back(blob_bottom_0_);
blob_bottom_vec_0_.push_back(blob_bottom_1_);
blob_bottom_vec_1_.push_back(blob_bottom_0_);
blob_bottom_vec_1_.push_back(blob_bottom_2_);
blob_top_vec_.push_back(blob_top_);
}
virtual ~ConcatLayerTest() {
delete blob_bottom_0_; delete blob_bottom_1_;
delete blob_bottom_2_; delete blob_top_;
}
Blob<Dtype>* const blob_bottom_0_;
Blob<Dtype>* const blob_bottom_1_;
Blob<Dtype>* const blob_bottom_2_;
Blob<Dtype>* const blob_top_;
vector<Blob<Dtype>*> blob_bottom_vec_0_, blob_bottom_vec_1_;
vector<Blob<Dtype>*> blob_top_vec_;
};
TYPED_TEST_CASE(ConcatLayerTest, TestDtypesAndDevices);
TYPED_TEST(ConcatLayerTest, TestSetupNum) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
layer_param.mutable_concat_param()->set_axis(0);
ConcatLayer<Dtype> layer(layer_param);
layer.SetUp(this->blob_bottom_vec_1_, this->blob_top_vec_);
EXPECT_EQ(this->blob_top_->num(),
this->blob_bottom_0_->num() + this->blob_bottom_2_->num());
EXPECT_EQ(this->blob_top_->channels(), this->blob_bottom_0_->channels());
EXPECT_EQ(this->blob_top_->height(), this->blob_bottom_0_->height());
EXPECT_EQ(this->blob_top_->width(), this->blob_bottom_0_->width());
}
TYPED_TEST(ConcatLayerTest, TestSetupChannels) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
layer.SetUp(this->blob_bottom_vec_0_, this->blob_top_vec_);
EXPECT_EQ(this->blob_top_->num(), this->blob_bottom_0_->num());
EXPECT_EQ(this->blob_top_->channels(),
this->blob_bottom_0_->channels() + this->blob_bottom_1_->channels());
EXPECT_EQ(this->blob_top_->height(), this->blob_bottom_0_->height());
EXPECT_EQ(this->blob_top_->width(), this->blob_bottom_0_->width());
}
TYPED_TEST(ConcatLayerTest, TestSetupChannelsNegativeIndexing) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
// "channels" index is the third one from the end -- test negative indexing
// by setting axis to -3 and checking that we get the same results as above in
// TestSetupChannels.
layer_param.mutable_concat_param()->set_axis(-3);
layer.SetUp(this->blob_bottom_vec_0_, this->blob_top_vec_);
EXPECT_EQ(this->blob_top_->num(), this->blob_bottom_0_->num());
EXPECT_EQ(this->blob_top_->channels(),
this->blob_bottom_0_->channels() + this->blob_bottom_1_->channels());
EXPECT_EQ(this->blob_top_->height(), this->blob_bottom_0_->height());
EXPECT_EQ(this->blob_top_->width(), this->blob_bottom_0_->width());
}
TYPED_TEST(ConcatLayerTest, TestForwardNum) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
layer_param.mutable_concat_param()->set_axis(0);
ConcatLayer<Dtype> layer(layer_param);
layer.SetUp(this->blob_bottom_vec_1_, this->blob_top_vec_);
layer.Forward(this->blob_bottom_vec_1_, this->blob_top_vec_);
for (int n = 0; n < this->blob_bottom_vec_1_[0]->num(); ++n) {
for (int c = 0; c < this->blob_top_->channels(); ++c) {
for (int h = 0; h < this->blob_top_->height(); ++h) {
for (int w = 0; w < this->blob_top_->width(); ++w) {
EXPECT_EQ(this->blob_top_->data_at(n, c, h, w),
this->blob_bottom_vec_1_[0]->data_at(n, c, h, w));
}
}
}
}
for (int n = 0; n < this->blob_bottom_vec_1_[1]->num(); ++n) {
for (int c = 0; c < this->blob_top_->channels(); ++c) {
for (int h = 0; h < this->blob_top_->height(); ++h) {
for (int w = 0; w < this->blob_top_->width(); ++w) {
EXPECT_EQ(this->blob_top_->data_at(n + 2, c, h, w),
this->blob_bottom_vec_1_[1]->data_at(n, c, h, w));
}
}
}
}
}
TYPED_TEST(ConcatLayerTest, TestForwardChannels) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
layer.SetUp(this->blob_bottom_vec_0_, this->blob_top_vec_);
layer.Forward(this->blob_bottom_vec_0_, this->blob_top_vec_);
for (int n = 0; n < this->blob_top_->num(); ++n) {
for (int c = 0; c < this->blob_bottom_0_->channels(); ++c) {
for (int h = 0; h < this->blob_top_->height(); ++h) {
for (int w = 0; w < this->blob_top_->width(); ++w) {
EXPECT_EQ(this->blob_top_->data_at(n, c, h, w),
this->blob_bottom_vec_0_[0]->data_at(n, c, h, w));
}
}
}
for (int c = 0; c < this->blob_bottom_1_->channels(); ++c) {
for (int h = 0; h < this->blob_top_->height(); ++h) {
for (int w = 0; w < this->blob_top_->width(); ++w) {
EXPECT_EQ(this->blob_top_->data_at(n, c + 3, h, w),
this->blob_bottom_vec_0_[1]->data_at(n, c, h, w));
}
}
}
}
}
TYPED_TEST(ConcatLayerTest, TestGradientNum) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
layer_param.mutable_concat_param()->set_axis(0);
ConcatLayer<Dtype> layer(layer_param);
GradientChecker<Dtype> checker(1e-2, 1e-2);
checker.CheckGradient(&layer, this->blob_bottom_vec_1_,
this->blob_top_vec_);
}
TYPED_TEST(ConcatLayerTest, TestGradientChannels) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
GradientChecker<Dtype> checker(1e-2, 1e-2);
checker.CheckGradient(&layer, this->blob_bottom_vec_0_,
this->blob_top_vec_);
}
TYPED_TEST(ConcatLayerTest, TestGradientChannelsBottomOneOnly) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
GradientChecker<Dtype> checker(1e-2, 1e-2);
checker.CheckGradient(&layer, this->blob_bottom_vec_0_,
this->blob_top_vec_, 1);
}
} // namespace caffe