Add test for converting functor to regular material properties

refs idaholab#19420

test/tests/materials/functor_conversion/conversion.i

@@ -0,0 +1,91 @@
+[Mesh]
+  [gen]
+    type = GeneratedMeshGenerator
+    dim = 1
+    nx = 10
+    xmax = 2
+  []
+  [subdomain1]
+    input = gen
+    type = SubdomainBoundingBoxGenerator
+    bottom_left = '1.0 0 0'
+    block_id = 1
+    top_right = '2.0 1.0 0'
+  []
+  [interface]
+    input = subdomain1
+    type = SideSetsBetweenSubdomainsGenerator
+    primary_block = '0'
+    paired_block = '1'
+    new_boundary = 'primary0_interface'
+  []
+[]
+
+[Variables]
+  [u]
+    order = FIRST
+    family = LAGRANGE
+    initial_condition = 2
+  []
+[]
+
+[AuxVariables]
+  [v]
+    order = FIRST
+    family = MONOMIAL
+    initial_condition = 3
+  []
+[]
+
+[Functions]
+  [f1]
+    type = ParsedFunction
+    expression = '2 + x'
+  []
+[]
+
+[FunctorMaterials]
+  [block0]
+    type = GenericFunctorMaterial
+    block = '0'
+    prop_names = 'D D_block0'
+    prop_values = '4 3'
+  []
+  [block1]
+    type = GenericFunctorMaterial
+    block = '1'
+    prop_names = 'D'
+    prop_values = '2'
+  []
+[]
+
+[Materials]
+  [convert_to_reg]
+    type = MaterialFunctorConverter
+    functors_in = 'D f1 u v'
+    reg_props_out = 'm1 m2 m3 m4'
+    outputs = 'exo'
+  []
+  [convert_to_ad]
+    type = MaterialFunctorConverter
+    functors_in = 'D f1 u v'
+    ad_props_out = 'm1a m2a m3a m4a'
+    outputs = 'exo'
+  []
+[]
+
+[Executioner]
+  type = Steady
+  solve_type = NEWTON
+[]
+
+[Problem]
+  solve = false
+[]
+
+[Outputs]
+  [exo]
+    type = Exodus
+    hide = 'u v'
+  []
+[]

test/tests/materials/functor_conversion/tests

@@ -0,0 +1,11 @@
+[Tests]
+  design = 'Materials/MaterialFunctorConverter.md'
+  [scalar]
+    type = 'Exodiff'
+    input = 'conversion.i'
+    exodiff = 'conversion_out.e'
+    requirement = "The system shall be able to convert functors to regular (using automatic "
+                  "differentiation or not) material properties."
+    issues = "#19420"
+  []
+[]