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*/

/**
Testcase Scenarios :
 1) Add multiple Memcpy nodes to graph and verify node execution is
 working as expected.
*/

#include <hip_test_common.hh>
#include <hip_test_checkers.hh>

/**
 * Functional Test adds memcpy nodes of types H2D, D2D and D2H to graph
 * and verifies execution sequence by launching graph.
 */
TEST_CASE("Unit_hipGraphAddMemcpyNode_Functional") {
  constexpr int width{10}, height{10}, depth{10};
  hipArray *devArray1, *devArray2;
  hipChannelFormatKind formatKind = hipChannelFormatKindSigned;
  hipMemcpy3DParms myparams;
  uint32_t size = width * height * depth * sizeof(int);
  hipGraph_t graph;
  hipGraphNode_t memcpyNode;
  std::vector<hipGraphNode_t> dependencies;
  hipStream_t streamForGraph;
  hipGraphExec_t graphExec;

  int *hData = reinterpret_cast<int*>(malloc(size));
  int *hOutputData = reinterpret_cast<int *>(malloc(size));

  REQUIRE(hData != nullptr);
  REQUIRE(hOutputData != nullptr);
  memset(hData, 0, size);
  memset(hOutputData, 0,  size);

  HIP_CHECK(hipStreamCreate(&streamForGraph));

  // Initialize host buffer
  for (int i = 0; i < depth; i++) {
    for (int j = 0; j < height; j++) {
      for (int k = 0; k < width; k++) {
        hData[i*width*height + j*width + k] = i*width*height + j*width + k;
      }
    }
  }

  hipChannelFormatDesc channelDesc = hipCreateChannelDesc(sizeof(int)*8,
                                                          0, 0, 0, formatKind);
  HIP_CHECK(hipMalloc3DArray(&devArray1, &channelDesc,
                       make_hipExtent(width, height, depth), hipArrayDefault));
  HIP_CHECK(hipMalloc3DArray(&devArray2, &channelDesc,
                       make_hipExtent(width, height, depth), hipArrayDefault));
  HIP_CHECK(hipGraphCreate(&graph, 0));

  // Host to Device
  memset(&myparams, 0x0, sizeof(hipMemcpy3DParms));
  myparams.srcPos = make_hipPos(0, 0, 0);
  myparams.dstPos = make_hipPos(0, 0, 0);
  myparams.extent = make_hipExtent(width , height, depth);
  myparams.srcPtr = make_hipPitchedPtr(hData, width * sizeof(int),
                                      width, height);
  myparams.dstArray = devArray1;
  myparams.kind = hipMemcpyHostToDevice;


  HIP_CHECK(hipGraphAddMemcpyNode(&memcpyNode, graph, nullptr, 0, &myparams));
  dependencies.push_back(memcpyNode);

  // Device to Device
  memset(&myparams, 0x0, sizeof(hipMemcpy3DParms));
  myparams.srcPos = make_hipPos(0, 0, 0);
  myparams.dstPos = make_hipPos(0, 0, 0);
  myparams.srcArray = devArray1;
  myparams.dstArray = devArray2;
  myparams.extent = make_hipExtent(width, height, depth);
  myparams.kind = hipMemcpyDeviceToDevice;

  HIP_CHECK(hipGraphAddMemcpyNode(&memcpyNode, graph, dependencies.data(),
                                             dependencies.size(), &myparams));
  dependencies.clear();
  dependencies.push_back(memcpyNode);

  // Device to host
  memset(&myparams, 0x0, sizeof(hipMemcpy3DParms));
  myparams.srcPos = make_hipPos(0, 0, 0);
  myparams.dstPos = make_hipPos(0, 0, 0);
  myparams.dstPtr = make_hipPitchedPtr(hOutputData, width * sizeof(int),
                                      width, height);
  myparams.srcArray = devArray2;
  myparams.extent = make_hipExtent(width, height, depth);
  myparams.kind = hipMemcpyDeviceToHost;

  HIP_CHECK(hipGraphAddMemcpyNode(&memcpyNode, graph, dependencies.data(),
                                             dependencies.size(), &myparams));

  // Instantiate and launch the graph
  HIP_CHECK(hipGraphInstantiate(&graphExec, graph, nullptr, nullptr, 0));
  HIP_CHECK(hipGraphLaunch(graphExec, streamForGraph));
  HIP_CHECK(hipStreamSynchronize(streamForGraph));

  // Check result
  HipTest::checkArray(hData, hOutputData, width, height, depth);

  HIP_CHECK(hipGraphExecDestroy(graphExec));
  HIP_CHECK(hipGraphDestroy(graph));
  HIP_CHECK(hipStreamDestroy(streamForGraph));
  hipFreeArray(devArray1);
  hipFreeArray(devArray2);
  free(hData);
  free(hOutputData);
}