1 files changed, 163 insertions, 0 deletions
diff --git a/tensorflow/core/kernels/resize_nearest_neighbor_op_test.cc b/tensorflow/core/kernels/resize_nearest_neighbor_op_test.cc
new file mode 100644
index 0000000000..8fca1f34e3
--- /dev/null
+++ b/tensorflow/core/kernels/resize_nearest_neighbor_op_test.cc
@@ -0,0 +1,163 @@
+// TODO(shlens, sherrym): Consider adding additional tests in image_ops.py in
+// order to compare the reference implementation for image resizing in Python
+// Image Library.
+#include "tensorflow/core/framework/allocator.h"
+#include "tensorflow/core/framework/fake_input.h"
+#include "tensorflow/core/framework/graph.pb.h"
+#include "tensorflow/core/framework/node_def_builder.h"
+#include "tensorflow/core/framework/op_kernel.h"
+#include "tensorflow/core/framework/tensor_testutil.h"
+#include "tensorflow/core/framework/types.h"
+#include "tensorflow/core/framework/types.pb.h"
+#include "tensorflow/core/kernels/ops_util.h"
+#include "tensorflow/core/kernels/ops_testutil.h"
+#include "tensorflow/core/public/tensor.h"
+#include <gtest/gtest.h>
+#include "tensorflow/core/lib/core/status_test_util.h"
+
+namespace tensorflow {
+
+class ResizeNearestNeighborOpTest : public OpsTestBase {
+ protected:
+  ResizeNearestNeighborOpTest() {
+    RequireDefaultOps();
+    EXPECT_OK(NodeDefBuilder("resize_nn", "ResizeNearestNeighbor")
+                  .Input(FakeInput(DT_FLOAT))
+                  .Input(FakeInput(DT_INT32))
+                  .Finalize(node_def()));
+    EXPECT_OK(InitOp());
+  }
+};
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2To1x1) {
+  // Input:
+  //  1, 2
+  //  3, 4
+  AddInputFromArray<float>(TensorShape({1, 2, 2, 1}), {1, 2, 3, 4});
+  AddInputFromArray<int32>(TensorShape({2}), {1, 1});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({1, 1, 1, 1}));
+
+  // clang-format off
+  test::FillValues<float>(&expected, {1});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2To3x3) {
+  // Input:
+  //  1, 2
+  //  3, 4
+  AddInputFromArray<float>(TensorShape({1, 2, 2, 1}), {1, 2, 3, 4});
+  AddInputFromArray<int32>(TensorShape({2}), {3, 3});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({1, 3, 3, 1}));
+
+  // clang-format off
+  test::FillValues<float>(&expected,
+    {1, 1, 2,
+     1, 1, 2,
+     3, 3, 4});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2To2x5) {
+  // Input:
+  //  1, 2
+  //  3, 4
+  AddInputFromArray<float>(TensorShape({1, 2, 2, 1}), {1, 2, 3, 4});
+  AddInputFromArray<int32>(TensorShape({2}), {2, 5});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({1, 2, 5, 1}));
+
+  // clang-format off
+  test::FillValues<float>(&expected,
+    {1, 1, 1, 2, 2,
+     3, 3, 3, 4, 4});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2To5x2) {
+  // Input:
+  //  1, 2
+  //  3, 4
+  AddInputFromArray<float>(TensorShape({1, 2, 2, 1}), {1, 2, 3, 4});
+  AddInputFromArray<int32>(TensorShape({2}), {5, 2});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({1, 5, 2, 1}));
+
+  // clang-format off
+  test::FillValues<float>(&expected,
+    {1, 2,
+     1, 2,
+     1, 2,
+     3, 4,
+     3, 4});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2To4x4) {
+  // Input:
+  //  1, 2
+  //  3, 4
+  AddInputFromArray<float>(TensorShape({1, 2, 2, 1}), {1, 2, 3, 4});
+  AddInputFromArray<int32>(TensorShape({2}), {4, 4});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({1, 4, 4, 1}));
+
+  // clang-format off
+  test::FillValues<float>(&expected,
+    {1, 1, 2, 2,
+     1, 1, 2, 2,
+     3, 3, 4, 4,
+     3, 3, 4, 4});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+TEST_F(ResizeNearestNeighborOpTest, TestNearest2x2x2x2To2x3x3x2) {
+  // Input:
+  //  [ [ 1, 1 ], [ 2, 2],
+  //    [ 3, 3 ], [ 4, 4] ],
+  //  [ [ 5, 5 ], [ 6, 6],
+  //    [ 7, 7 ], [ 8, 8] ]
+  AddInputFromArray<float>(TensorShape({2, 2, 2, 2}),
+                           {1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8});
+  AddInputFromArray<int32>(TensorShape({2}), {3, 3});
+  ASSERT_OK(RunOpKernel());
+
+  Tensor expected(allocator(), DT_FLOAT, TensorShape({2, 3, 3, 2}));
+
+  // clang-format off
+  test::FillValues<float>(&expected,
+    {1, 1, 1,
+     1, 2, 2,
+     1, 1, 1,
+     1, 2, 2,
+     3, 3, 3,
+     3, 4, 4,
+     5, 5, 5,
+     5, 6, 6,
+     5, 5, 5,
+     5, 6, 6,
+     7, 7, 7,
+     7, 8, 8});
+
+  // clang-format on
+  test::ExpectTensorEqual<float>(expected, *GetOutput(0));
+}
+
+}  // namespace tensorflow