From 02431cbe71eb036b1d6caa49c585db92a20b030f Mon Sep 17 00:00:00 2001
From: Eugene Zhulenev <ezhulenev@google.com>
Date: Wed, 16 Oct 2019 13:26:28 -0700
Subject: TensorBroadcasting support for random/uniform blocks

---
 unsupported/test/cxx11_tensor_block_eval.cpp | 32 ++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'unsupported/test/cxx11_tensor_block_eval.cpp')

diff --git a/unsupported/test/cxx11_tensor_block_eval.cpp b/unsupported/test/cxx11_tensor_block_eval.cpp
index eb93c5c53..01c431098 100644
--- a/unsupported/test/cxx11_tensor_block_eval.cpp
+++ b/unsupported/test/cxx11_tensor_block_eval.cpp
@@ -264,6 +264,10 @@ static void test_eval_tensor_broadcast() {
       input.broadcast(bcast),
       [&bcasted_dims]() { return SkewedInnerBlock<Layout>(bcasted_dims); });
 
+  VerifyBlockEvaluator<T, NumDims, Layout>(
+      input.broadcast(bcast),
+      [&bcasted_dims]() { return RandomBlock<Layout>(bcasted_dims, 5, 10); });
+
   VerifyBlockEvaluator<T, NumDims, Layout>(
       input.broadcast(bcast),
       [&bcasted_dims]() { return FixedSizeBlock(bcasted_dims); });
@@ -534,6 +538,33 @@ static void test_eval_tensor_forced_eval() {
       [dims]() { return RandomBlock<Layout, 2>(dims, 1, 50); });
 }
 
+template <typename T, int Layout>
+static void test_eval_tensor_chipping_of_bcast() {
+  if (Layout != static_cast<int>(RowMajor)) return;
+
+  Index dim0 = internal::random<Index>(1, 10);
+  Index dim1 = internal::random<Index>(1, 10);
+  Index dim2 = internal::random<Index>(1, 10);
+
+  Tensor<T, 3, Layout> input(1, dim1, dim2);
+  input.setRandom();
+
+  Eigen::array<Index, 3> bcast({dim0, 1, 1});
+  DSizes<Index, 2> chipped_dims(dim0, dim2);
+
+  VerifyBlockEvaluator<T, 2, Layout>(
+      input.broadcast(bcast).chip(0, 1),
+      [chipped_dims]() { return FixedSizeBlock(chipped_dims); });
+
+  VerifyBlockEvaluator<T, 2, Layout>(
+      input.broadcast(bcast).chip(0, 1),
+      [chipped_dims]() { return SkewedInnerBlock<Layout, 2>(chipped_dims); });
+
+  VerifyBlockEvaluator<T, 2, Layout>(
+      input.broadcast(bcast).chip(0, 1),
+      [chipped_dims]() { return RandomBlock<Layout, 2>(chipped_dims, 1, 5); });
+}
+
 // -------------------------------------------------------------------------- //
 // Verify that assigning block to a Tensor expression produces the same result
 // as an assignment to TensorSliceOp (writing a block is is identical to
@@ -760,6 +791,7 @@ EIGEN_DECLARE_TEST(cxx11_tensor_block_eval) {
 
   CALL_SUBTESTS_LAYOUTS(6, test_eval_tensor_reshape_with_bcast);
   CALL_SUBTESTS_LAYOUTS(6, test_eval_tensor_forced_eval);
+  CALL_SUBTESTS_LAYOUTS(6, test_eval_tensor_chipping_of_bcast);
 
   CALL_SUBTESTS_DIMS_LAYOUTS(7, test_assign_to_tensor);
   CALL_SUBTESTS_DIMS_LAYOUTS(7, test_assign_to_tensor_reshape);
-- 
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