From 8c8db49331a89236be7fdf045279504dd7d1797a Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Thu, 14 Aug 2014 00:25:22 -0700
Subject: Added a few regression tests

---
 unsupported/test/cxx11_tensor_padding.cpp | 54 +++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 unsupported/test/cxx11_tensor_padding.cpp

(limited to 'unsupported/test/cxx11_tensor_padding.cpp')

diff --git a/unsupported/test/cxx11_tensor_padding.cpp b/unsupported/test/cxx11_tensor_padding.cpp
new file mode 100644
index 000000000..d93bb1883
--- /dev/null
+++ b/unsupported/test/cxx11_tensor_padding.cpp
@@ -0,0 +1,54 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2014 Benoit Steiner <benoit.steiner.goog@gmail.com>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include "main.h"
+
+#include <Eigen/CXX11/Tensor>
+
+using Eigen::Tensor;
+
+static void test_simple_padding()
+{
+  Tensor<float, 4> tensor(2,3,5,7);
+  tensor.setRandom();
+
+  array<pair<ptrdiff_t, ptrdiff_t>, 4> paddings;
+  paddings[0] = make_pair(0, 0);
+  paddings[1] = make_pair(2, 1);
+  paddings[2] = make_pair(3, 4);
+  paddings[3] = make_pair(0, 0);
+
+  Tensor<float, 4> padded;
+  padded = tensor.pad(paddings);
+
+  VERIFY_IS_EQUAL(padded.dimension(0), 2+0);
+  VERIFY_IS_EQUAL(padded.dimension(1), 3+3);
+  VERIFY_IS_EQUAL(padded.dimension(2), 5+7);
+  VERIFY_IS_EQUAL(padded.dimension(3), 7+0);
+
+  for (int i = 0; i < 2; ++i) {
+    for (int j = 0; j < 6; ++j) {
+      for (int k = 0; k < 12; ++k) {
+        for (int l = 0; l < 7; ++l) {
+          if (j >= 2 && j < 5 && k >= 3 && k < 8) {
+            VERIFY_IS_EQUAL(tensor(i,j-2,k-3,l), padded(i,j,k,l));
+          } else {
+            VERIFY_IS_EQUAL(0.0f, padded(i,j,k,l));
+          }
+        }
+      }
+    }
+  }
+}
+
+
+void test_cxx11_tensor_padding()
+{
+  CALL_SUBTEST(test_simple_padding());
+}
-- 
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