static const char help[] = "Tests PetscDeviceContextView().\n\n";

#include "petscdevicetestcommon.h"
#include <petscviewer.h>

static PetscErrorCode TestView(PetscDeviceContext dctx)
{
  PetscViewer viewer;

  PetscFunctionBegin;
  /* test stdout world */
  PetscCall(PetscDeviceContextView(dctx, NULL));

  /* test creating our own viewer */
  PetscCall(PetscViewerCreate(PETSC_COMM_WORLD, &viewer));
  PetscCall(PetscViewerSetType(viewer, PETSCVIEWERASCII));
  PetscCall(PetscDeviceContextView(dctx, viewer));
  PetscCall(PetscViewerDestroy(&viewer));
  PetscFunctionReturn(PETSC_SUCCESS);
}

int main(int argc, char *argv[])
{
  PetscDeviceContext dctx, dup;

  PetscFunctionBeginUser;
  PetscCall(PetscInitialize(&argc, &argv, NULL, help));

  PetscCall(PetscDeviceContextGetCurrentContext(&dctx));
  PetscCall(TestView(dctx));

  PetscCall(PetscDeviceContextDuplicate(dctx, &dup));
  PetscCall(TestView(dup));
  PetscCall(PetscDeviceContextDestroy(&dup));

  PetscCall(TestView(NULL));

  PetscCall(PetscPrintf(PETSC_COMM_WORLD, "EXIT_SUCCESS\n"));
  PetscCall(PetscFinalize());
  return 0;
}

/*TEST

  testset:
    requires: defined(PETSC_DEVICELANGUAGE_CXX)
    args: -root_device_context_stream_type \
      {{default default_with_barrier nonblocking}separate output}
    filter: grep -ve "ex6 on a" -ve "\[0\] "
    test:
      requires: !device
      suffix: host_no_device
    test:
      requires: device
      args: -root_device_context_device_type host
      suffix: host_with_device
    test:
      requires: cuda
      args: -root_device_context_device_type cuda
      suffix: cuda
    test:
      requires: hip
      args: -root_device_context_device_type hip
      suffix: hip
    test:
      requires: sycl
      args: -root_device_context_device_type sycl
      suffix: sycl

  testset:
    requires: !defined(PETSC_DEVICELANGUAGE_CXX)
    output_file: output/ExitSuccess.out
    suffix: no_cxx

TEST*/