add boilerplate for CreateMKLDNNMem test

tests/cpp/operator/mkldnn.cc

@@ -736,4 +736,42 @@ TEST(IMPERATIVE, BinaryOp) {
   TestBinaryOp(attrs, VerifySumResult);
 }
 
+void VerifyCopyMemory(mkldnn::memory in_mem1, mkldnn::memory out_mem) {
+  float *in1 = static_cast<float*>(in_mem1.get_data_handle());
+  float *out = static_cast<float*>(out_mem.get_data_handle());
+  EXPECT_EQ(in_mem1.get_primitive_desc().get_size(), out_mem.get_primitive_desc().get_size());
+  EXPECT_EQ(memcmp(in1, out, in_mem1.get_primitive_desc().get_size()),0);
+}
+
+
+TEST(MKLDNN_BASE, CreateMKLDNNMem) {
+  std::vector<NDArrayAttrs> in_arrs = GetTestInputArrays(InitDefaultArray);
+  TestArrayShapes tas = GetTestArrayShapes();
+  std::vector<mkldnn::memory::primitive_desc> pds = tas.pds;
+
+  MKLDNNStream *stream = MKLDNNStream::Get();
+
+  for (auto in_arr : in_arrs) {
+
+    if (!SupportMKLDNN(in_arr.arr) || in_arr.arr.IsView())
+      continue;
+
+    std::vector<NDArrayAttrs> out_arrs = GetTestOutputArrays(in_arr.arr.shape(), pds,
+                                                             InitDefaultArray);
+    for (auto out_arr : out_arrs) {
+      auto in_mem = in_arr.arr.GetMKLDNNData();
+      auto output_mem_t = CreateMKLDNNMem(out_arr.arr, in_mem->get_primitive_desc(), kWriteTo);
+      const_cast<NDArray &>(out_arr.arr).CopyFrom(*in_mem);
+      CommitOutput(out_arr.arr, output_mem_t);
+      stream->Submit();
+      VerifyCopyMemory(*in_mem, *out_arr.arr.GetMKLDNNData());
+    }
+
+    // in place
+
+  }
+
+
+}
+
 #endif