added element and nodal variable sampling test to reporter

src/reporters/ClosestElemsToLineVarValue.C

@@ -21,8 +21,8 @@ ClosestElemsToLineVarValue::validParams()
 {
   InputParameters params = ClosestElemsToLine::validParams();
   params.addClassDescription("Creates a real_vector_names reporter that has each "
-                             "elements average nodal variable value.");
-  params.addRequiredParam<VariableName>("variable_to_sample", "The nodal variable to monitor.");
+                             "elements average variable value.");
+  params.addRequiredParam<VariableName>("variable_to_sample", "The variable to sample.");
   return params;
 }
 
@@ -50,6 +50,8 @@ ClosestElemsToLineVarValue::finalize()
     const Elem * elem = mesh.getMesh().query_elem_ptr(_eid[i]);
     if (elem->processor_id() == processor_id())
     {
+      // The element average is computed this way because the reporter system
+      //  does not have a base class that derives off the nodal or element userobject
       _fe_problem.setCurrentSubdomainID(elem, 0);
       _subproblem.prepare(elem, _tid);
       _subproblem.reinitElem(elem, _tid);

test/tests/reporters/closest_elems_to_line_VarValue/nodal_var_value.i

@@ -21,6 +21,12 @@
     order = SECOND
     family = LAGRANGE
   [../]
+
+  [./v2]
+    order = CONSTANT
+    family = MONOMIAL
+  [../]
+
 []
 
 [AuxKernels]
@@ -30,6 +36,12 @@
     variable = v
     function = 't*x*y'
   []
+  [v2]
+    type = ParsedAux
+    use_xyzt = true
+    variable = v2
+    function = '-t*x*y'
+  []
 []
 
 [Reporters]
@@ -65,6 +77,19 @@
     variable_to_sample = v
     outputs = out
   []
+  [elem_var]
+    type = ClosestElemsToLineVarValue
+    projection_tolerance = 5
+    point_x1 = pt/pt1_x
+    point_y1 = pt/pt1_y
+    point_z1 = pt/pt1_z
+    point_x2 = pt/pt2_x
+    point_y2 = pt/pt2_y
+    point_z2 = pt/pt2_z
+    variable_filter = v
+    variable_to_sample = v2
+    outputs = out
+  []
 []
 
 [Executioner]