From 7be3b847464c0435480a003ed85e3ffa9cd2b96c Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Wed, 28 Apr 2021 12:59:00 -0600
Subject: [PATCH] Add test.

---
 tests/base/aligned_vector_replicate_05.cc     | 106 ++++++++++++++++++
 ...ligned_vector_replicate_05.mpirun=3.output |   8 ++
 2 files changed, 114 insertions(+)
 create mode 100644 tests/base/aligned_vector_replicate_05.cc
 create mode 100644 tests/base/aligned_vector_replicate_05.mpirun=3.output

diff --git a/tests/base/aligned_vector_replicate_05.cc b/tests/base/aligned_vector_replicate_05.cc
new file mode 100644
index 0000000000..375b215265
--- /dev/null
+++ b/tests/base/aligned_vector_replicate_05.cc
@@ -0,0 +1,106 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2012 - 2018 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE.md at
+// the top level directory of deal.II.
+//
+// ---------------------------------------------------------------------
+
+
+// Test AlignedVector::replicate_across_communicator().
+//
+// Check that all objects are correctly created/destroyed again.
+
+#include <deal.II/base/aligned_vector.h>
+#include <deal.II/base/logstream.h>
+
+#include "../tests.h"
+
+
+int object_number     = 0;
+int objects_destroyed = 0;
+
+class C
+{
+public:
+  C()
+  {
+    object_number = ::object_number++;
+    deallog << "Default constructor. Object number " << object_number
+            << std::endl;
+  }
+
+  C(const C &c)
+  {
+    object_number = ::object_number++;
+    deallog << "copy constructor from " << c.object_number << ". Object number "
+            << object_number << std::endl;
+  }
+
+  C(const C &&c)
+  {
+    object_number = ::object_number++;
+    deallog << "move constructor from " << c.object_number << ". Object number "
+            << object_number << std::endl;
+  }
+
+  ~C()
+  {
+    deallog << "destructor. Object number " << object_number << std::endl;
+    ++objects_destroyed;
+  }
+
+  template <typename Archive>
+  void
+  serialize(Archive &ar, const unsigned int)
+  {
+    ar &object_number;
+  }
+
+
+private:
+  unsigned int object_number;
+};
+
+
+
+void
+test()
+{
+  const MPI_Comm     communicator = MPI_COMM_WORLD;
+  const unsigned int root         = 1;
+  Assert(root < Utilities::MPI::n_mpi_processes(communicator),
+         ExcInternalError());
+
+  // Create an object of nonzero size and then replicate it.
+  AlignedVector<C> avec(Utilities::MPI::this_mpi_process(communicator));
+
+  deallog << "On process " << Utilities::MPI::this_mpi_process(communicator)
+          << ": Replicating..." << std::endl;
+
+  avec.replicate_across_communicator(communicator, root);
+
+  deallog << "On process " << Utilities::MPI::this_mpi_process(communicator)
+          << ": Going out of scope" << std::endl;
+}
+
+
+
+int
+main(int argc, char **argv)
+{
+  Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
+  MPILogInitAll                    all;
+
+  test();
+
+  deallog << "Objects created: " << object_number << std::endl;
+  deallog << "Objects destroyed: " << objects_destroyed << std::endl;
+}
diff --git a/tests/base/aligned_vector_replicate_05.mpirun=3.output b/tests/base/aligned_vector_replicate_05.mpirun=3.output
new file mode 100644
index 0000000000..e4fe2b2111
--- /dev/null
+++ b/tests/base/aligned_vector_replicate_05.mpirun=3.output
@@ -0,0 +1,8 @@
+
+DEAL:0::On process 0: 0
+
+DEAL:1::On process 1: 0
+
+
+DEAL:2::On process 2: 0
+
-- 
2.39.5