Function TestCopies

tensorflow/core/framework/tensor_test.cc:118–182

template <typename T>
void TestCopies(const Tensor& t) {
  {
    LOG(INFO) << "CopyFrom()";
    Tensor t2(t.dtype());
    EXPECT_TRUE(t2.CopyFrom(t, t.shape()));
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "operator=()";
    Tensor t2(t.dtype());
    t2 = t;
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "deep copy";
    Tensor t2(t.dtype(), t.shape());
    t2.flat<T>() = t.flat<T>();
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "AsProtoField()";
    TensorProto proto;
    t.AsProtoField(&proto);
    Tensor t2(t.dtype());
    EXPECT_TRUE(t2.FromProto(proto));
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "AsProtoTensorContent()";
    TensorProto proto;
    t.AsProtoTensorContent(&proto);
    Tensor t2(t.dtype());
    EXPECT_TRUE(t2.FromProto(proto));
    test::ExpectTensorEqual<T>(t, t2);
    // Make another copy via tensor_content field.
    *proto.mutable_tensor_content() = proto.tensor_content();
    Tensor t3(t.dtype());
    EXPECT_TRUE(t3.FromProto(proto));
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "AsTensor";
    gtl::ArraySlice<T> values(t.flat<T>().data(), t.NumElements());
    Tensor t2 = test::AsTensor(values, t.shape());
    test::ExpectTensorEqual<T>(t, t2);
  }
  {
    LOG(INFO) << "Move constructor";
    Tensor t2 = t;
    Tensor t3(std::move(t2));
    test::ExpectTensorEqual<T>(t, t3);
    EXPECT_TRUE(t3.IsInitialized());
    EXPECT_FALSE(t2.IsInitialized());
  }
  {
    LOG(INFO) << "Move assignment";
    Tensor t2 = t;
    Tensor t3 = std::move(t2);