Add a test (#13953)

test/include/postprocessors/AverageBID.h

@@ -0,0 +1,34 @@
+//* This file is part of the MOOSE framework
+//* https://www.mooseframework.org
+//*
+//* All rights reserved, see COPYRIGHT for full restrictions
+//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
+//*
+//* Licensed under LGPL 2.1, please see LICENSE for details
+//* https://www.gnu.org/licenses/lgpl-2.1.html
+
+#pragma once
+
+#include "SidePostprocessor.h"
+
+// Forward Declarations
+class AverageBID;
+
+template <>
+InputParameters validParams<AverageBID>();
+
+class AverageBID : public SidePostprocessor
+{
+public:
+  AverageBID(const InputParameters & parameters);
+
+  virtual PostprocessorValue getValue() override;
+  virtual void execute() override;
+  virtual void initialize() override;
+  virtual void finalize() override;
+  virtual void threadJoin(const UserObject & uo) override;
+
+protected:
+  Real _sum_bid;
+  unsigned int _n_summands;
+};

test/src/postprocessors/AverageBID.C

@@ -0,0 +1,59 @@
+//* This file is part of the MOOSE framework
+//* https://www.mooseframework.org
+//*
+//* All rights reserved, see COPYRIGHT for full restrictions
+//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
+//*
+//* Licensed under LGPL 2.1, please see LICENSE for details
+//* https://www.gnu.org/licenses/lgpl-2.1.html
+
+#include "AverageBID.h"
+
+#include "Assembly.h"
+
+registerMooseObject("MooseTestApp", AverageBID);
+
+template <>
+InputParameters
+validParams<AverageBID>()
+{
+  InputParameters params = validParams<SidePostprocessor>();
+  return params;
+}
+
+AverageBID::AverageBID(const InputParameters & parameters) : SidePostprocessor(parameters) {}
+
+void
+AverageBID::initialize()
+{
+  _sum_bid = 0;
+  _n_summands = 0;
+}
+
+void
+AverageBID::execute()
+{
+  _sum_bid += _current_boundary_id;
+  ++_n_summands;
+}
+
+void
+AverageBID::finalize()
+{
+  gatherSum(_sum_bid);
+  gatherSum(_n_summands);
+}
+
+Real
+AverageBID::getValue()
+{
+  return _sum_bid / _n_summands;
+}
+
+void
+AverageBID::threadJoin(const UserObject & y)
+{
+  const AverageBID & pps = static_cast<const AverageBID &>(y);
+  _sum_bid += pps._sum_bid;
+  _n_summands += pps._n_summands;
+}

test/tests/postprocessors/current_boundary_id/current_boundary_id.i

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+#
+# This is used to create the mesh but it does not work with --distributed-mesh flag
+# and the parallel test bombs.
+#
+#[Mesh]
+#  type = MeshGeneratorMesh
+#
+#  [./cartesian]
+#    type = CartesianMeshGenerator
+#    dim = 2
+#    dx = '1 1'
+#    dy = '1'
+#    subdomain_id = '1 2'
+#  [../]
+#
+#  [./interior_bc]
+#    type = SideSetsBetweenSubdomainsGenerator
+#    master_block = 1
+#    paired_block = 2
+#    new_boundary = 12
+#    input = cartesian
+#  [../]
+#[]
+
+[Mesh]
+  type = FileMesh
+  file = current_boundary_id_in.e
+[]
+
+[Problem]
+  kernel_coverage_check = false
+[]
+
+[Variables]
+  [./u]
+  [../]
+[]
+
+[Postprocessors]
+  [./interior_boundary]
+    type = AverageBID
+    boundary = 12
+  [../]
+
+  [./top_boundary]
+    type = AverageBID
+    boundary = top
+  [../]
+[]
+
+[Executioner]
+  type = Steady
+[]
+
+[Outputs]
+  csv = true
+[]

test/tests/postprocessors/current_boundary_id/gold/current_boundary_id_out.csv

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+time,interior_boundary,top_boundary
+0,0,0
+1,12,2

test/tests/postprocessors/current_boundary_id/tests

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+[Tests]
+  issues = '#13953'
+  design = 'Assembly.md'
+  [current_boundary_id]
+    type = CSVDiff
+    input = current_boundary_id.i
+    csvdiff = 'current_boundary_id_out.csv'
+    requirement = "The current boundary id shall be available in objects evaluated on boundaries."
+  []
+[]