add split layer tests

diff --git a/src/caffe/test/test_split_layer.cpp b/src/caffe/test/test_split_layer.cpp
new file mode 100644 (file)
index 0000000..894f4c5
--- /dev/null
+++ b/src/caffe/test/test_split_layer.cpp
@@ -0,0 +1,105 @@
+// Copyright 2014 Jeff Donahue
+
+#include <cstring>
+#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_gradient_check_util.hpp"
+
+#include "caffe/test/test_caffe_main.hpp"
+
+namespace caffe {
+
+extern cudaDeviceProp CAFFE_TEST_CUDA_PROP;
+
+template <typename Dtype>
+class SplitLayerTest : public ::testing::Test {
+ protected:
+  SplitLayerTest()
+      : blob_bottom_(new Blob<Dtype>(2, 3, 6, 5)),
+        blob_top_a_(new Blob<Dtype>()),
+        blob_top_b_(new Blob<Dtype>()) {
+    // fill the values
+    FillerParameter filler_param;
+    GaussianFiller<Dtype> filler(filler_param);
+    filler.Fill(this->blob_bottom_);
+    blob_bottom_vec_.push_back(blob_bottom_);
+    blob_top_vec_.push_back(blob_top_a_);
+    blob_top_vec_.push_back(blob_top_b_);
+  };
+  virtual ~SplitLayerTest() {
+    delete blob_bottom_;
+    delete blob_top_a_;
+    delete blob_top_b_;
+  }
+  Blob<Dtype>* const blob_bottom_;
+  Blob<Dtype>* const blob_top_a_;
+  Blob<Dtype>* const blob_top_b_;
+  vector<Blob<Dtype>*> blob_bottom_vec_;
+  vector<Blob<Dtype>*> blob_top_vec_;
+};
+
+typedef ::testing::Types<float, double> Dtypes;
+TYPED_TEST_CASE(SplitLayerTest, Dtypes);
+
+TYPED_TEST(SplitLayerTest, TestSetup) {
+  LayerParameter layer_param;
+  SplitLayer<TypeParam> layer(layer_param);
+  layer.SetUp(this->blob_bottom_vec_, &(this->blob_top_vec_));
+  EXPECT_EQ(this->blob_top_a_->num(), 2);
+  EXPECT_EQ(this->blob_top_a_->channels(), 3);
+  EXPECT_EQ(this->blob_top_a_->height(), 6);
+  EXPECT_EQ(this->blob_top_a_->width(), 5);
+  EXPECT_EQ(this->blob_top_b_->num(), 2);
+  EXPECT_EQ(this->blob_top_b_->channels(), 3);
+  EXPECT_EQ(this->blob_top_b_->height(), 6);
+  EXPECT_EQ(this->blob_top_b_->width(), 5);
+}
+
+TYPED_TEST(SplitLayerTest, TestCPU) {
+  LayerParameter layer_param;
+  SplitLayer<TypeParam> layer(layer_param);
+  Caffe::set_mode(Caffe::CPU);
+  layer.SetUp(this->blob_bottom_vec_, &(this->blob_top_vec_));
+  layer.Forward(this->blob_bottom_vec_, &(this->blob_top_vec_));
+  for (int i = 0; i < this->blob_bottom_->count(); ++i) {
+    TypeParam bottom_value = this->blob_bottom_->cpu_data()[i];
+    EXPECT_EQ(bottom_value, this->blob_top_a_->cpu_data()[i]);
+    EXPECT_EQ(bottom_value, this->blob_top_b_->cpu_data()[i]);
+  }
+}
+
+TYPED_TEST(SplitLayerTest, TestGPU) {
+  LayerParameter layer_param;
+  SplitLayer<TypeParam> layer(layer_param);
+  Caffe::set_mode(Caffe::GPU);
+  layer.SetUp(this->blob_bottom_vec_, &(this->blob_top_vec_));
+  layer.Forward(this->blob_bottom_vec_, &(this->blob_top_vec_));
+  for (int i = 0; i < this->blob_bottom_->count(); ++i) {
+    TypeParam bottom_value = this->blob_bottom_->cpu_data()[i];
+    EXPECT_EQ(bottom_value, this->blob_top_a_->cpu_data()[i]);
+    EXPECT_EQ(bottom_value, this->blob_top_b_->cpu_data()[i]);
+  }
+}
+
+TYPED_TEST(SplitLayerTest, TestCPUGradient) {
+  LayerParameter layer_param;
+  Caffe::set_mode(Caffe::CPU);
+  SplitLayer<TypeParam> layer(layer_param);
+  GradientChecker<TypeParam> checker(1e-2, 1e-2);
+  checker.CheckGradientExhaustive(layer, this->blob_bottom_vec_, this->blob_top_vec_);
+}
+
+TYPED_TEST(SplitLayerTest, TestGPUGradient) {
+  LayerParameter layer_param;
+  Caffe::set_mode(Caffe::GPU);
+  SplitLayer<TypeParam> layer(layer_param);
+  GradientChecker<TypeParam> checker(1e-2, 1e-2);
+  checker.CheckGradientExhaustive(layer, this->blob_bottom_vec_, this->blob_top_vec_);
+}
+
+}