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// Copyright 2014 BVLC and contributors.
#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_gradient_check_util.hpp"
#include "caffe/test/test_caffe_main.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
FillerParameter filler_param;
filler_param.set_value(1.);
ConstantFiller<Dtype> filler(filler_param);
filler.Fill(this->blob_bottom_0);
filler_param.set_value(2.);
filler.Fill(this->blob_bottom_1);
filler_param.set_value(3.);
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_concat_dim(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, TestNum) {
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, TestGradient) {
typedef typename TypeParam::Dtype Dtype;
LayerParameter layer_param;
ConcatLayer<Dtype> layer(layer_param);
GradientChecker<Dtype> checker(1e-2, 1e-3);
checker.CheckGradient(&layer, &(this->blob_bottom_vec_0),
&(this->blob_top_vec_));
}
} // namespace caffe
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