Added a test for transformed transfer

Closes idaholab#15567

test/tests/transfers/multiapp_transfer_transformation/tests

@@ -0,0 +1,11 @@
+[Tests]
+  issues = '#15567'
+  design = 'MultiAppInterpolationTransfer.md'
+
+  [fromsub]
+    type = 'Exodiff'
+    input = 'transfer_transformation.i'
+    exodiff = 'transfer_transformation_out.e transfer_transformation_out_sub0.e'
+    requirement = "The system shall be able to create virtually translated points during MultiApp transfers"
+  []
+[]

test/tests/transfers/multiapp_transfer_transformation/transfer_transformation.i

@@ -0,0 +1,170 @@
+[Mesh]
+  [./gmg]
+    type = GeneratedMeshGenerator
+    dim = 2
+    nx = 3
+    ny = 5
+    nz = 0
+    xmax = 0.8
+    xmin = 0.2
+    zmin = 0
+    zmax = 0
+    elem_type = QUAD4
+  []
+
+  [./subdomain_id]
+    type = ElementSubdomainIDGenerator
+    input = gmg
+    subdomain_ids = '0 1 2
+                     0 1 2
+                     0 1 2
+                     0 1 2
+                     0 1 2'
+  []
+
+  [./boundary01]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = subdomain_id
+    master_block = '0'
+    paired_block = '1'
+    new_boundary = 'boundary01'
+  []
+
+  [./boundary10]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary01
+    master_block = '1'
+    paired_block = '0'
+    new_boundary = 'boundary10'
+  []
+
+  [./boundary12]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary10
+    master_block = '1'
+    paired_block = '2'
+    new_boundary = 'boundary12'
+  []
+
+  [./boundary21]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary12
+    master_block = '2'
+    paired_block = '1'
+    new_boundary = 'boundary21'
+  []
+
+  [./breakmesh]
+    type = BreakMeshByBlockGenerator
+    input = boundary21
+  [../]
+
+  uniform_refine = 2
+[]
+
+[Variables]
+  [./u]
+  [../]
+[]
+
+[Kernels]
+  [./diff]
+    type = Diffusion
+    variable = u
+  [../]
+[]
+
+[AuxVariables]
+  [./material_id]
+    order = constant
+    family = monomial
+  [../]
+
+  [./fromsub]
+  []
+[]
+
+[BCs]
+  [./left0]
+    type = DirichletBC
+    variable = u
+    boundary = left
+    value = 0
+  [../]
+
+  [./right0]
+    type = DirichletBC
+    variable = u
+    boundary = boundary01
+    value = 1
+  [../]
+
+  [./left1]
+    type = DirichletBC
+    variable = u
+    boundary = boundary10
+    value = 1
+  [../]
+
+  [./right1]
+    type = DirichletBC
+    variable = u
+    boundary = boundary12
+    value = 0
+  [../]
+
+  [./left2]
+    type = DirichletBC
+    variable = u
+    boundary = boundary21
+    value = 0
+  [../]
+
+  [./right2]
+    type = DirichletBC
+    variable = u
+    boundary = right
+    value = 1
+  [../]
+[]
+
+[Executioner]
+  type = Steady
+  solve_type = 'NEWTON'
+[]
+
+[Outputs]
+  exodus = true
+[]
+
+[MultiApps]
+  [sub]
+    type = FullSolveMultiApp
+    app_type = MooseTestApp
+    positions = '0.0  0.0  0.0'
+    execute_on = 'timestep_end'
+    input_files = transfer_transformation_sub.i
+  []
+[]
+
+[Transfers]
+  [from_sub_gap_distance]  # plate displacement in z only
+    type = MultiAppInterpolationTransfer
+    direction = from_multiapp
+    multi_app = sub
+    num_points = 1
+    shrink_gap_width = 0.2
+    shrink_mesh = 'source'
+    source_variable = 'u'
+    variable = 'fromsub'
+  []
+
+  [to_master]  # plate displacement in z only
+    type = MultiAppInterpolationTransfer
+    direction = to_multiapp
+    multi_app = sub
+    num_points = 2
+    source_variable = 'u'
+    variable = 'frommaster'
+  []
+[]

test/tests/transfers/multiapp_transfer_transformation/transfer_transformation_sub.i

@@ -0,0 +1,191 @@
+[Mesh]
+  [./gmg]
+    type = GeneratedMeshGenerator
+    dim = 2
+    nx = 5
+    ny = 5
+    nz = 0
+    zmin = 0
+    zmax = 0
+    elem_type = QUAD4
+  []
+
+  [./subdomain_id]
+    type = ElementSubdomainIDGenerator
+    input = gmg
+    subdomain_ids = '0 1 2 3 4
+                     0 1 2 3 4
+                     0 1 2 3 4
+                     0 1 2 3 4
+                     0 1 2 3 4'
+  []
+
+  [./boundary01]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = subdomain_id
+    master_block = '0'
+    paired_block = '1'
+    new_boundary = 'boundary01'
+  []
+
+  [./boundary10]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary01
+    master_block = '1'
+    paired_block = '0'
+    new_boundary = 'boundary10'
+  []
+
+  [./boundary12]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary10
+    master_block = '1'
+    paired_block = '2'
+    new_boundary = 'boundary12'
+  []
+
+  [./boundary21]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary12
+    master_block = '2'
+    paired_block = '1'
+    new_boundary = 'boundary21'
+  []
+
+  [./boundary23]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary21
+    master_block = '2'
+    paired_block = '3'
+    new_boundary = 'boundary23'
+  []
+
+  [./boundary32]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary23
+    master_block = '3'
+    paired_block = '2'
+    new_boundary = 'boundary32'
+  []
+
+  [./boundary34]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary32
+    master_block = '3'
+    paired_block = '4'
+    new_boundary = 'boundary34'
+  []
+
+  [./boundary43]
+    type = SideSetsBetweenSubdomainsGenerator
+    input = boundary34
+    master_block = '4'
+    paired_block = '3'
+    new_boundary = 'boundary43'
+  []
+
+  [./breakmesh]
+    type = BreakMeshByBlockGenerator
+    input = boundary43
+  [../]
+
+  uniform_refine = 2
+[]
+
+[Variables]
+  [./u]
+  [../]
+[]
+
+[Kernels]
+  [./diff]
+    type = Diffusion
+    variable = u
+  [../]
+[]
+
+[AuxVariables]
+  [./frommaster]
+  []
+[]
+
+[BCs]
+  [./left0]
+    type = DirichletBC
+    variable = u
+    boundary = left
+    value = 0
+  [../]
+
+  [./right0]
+    type = DirichletBC
+    variable = u
+    boundary = boundary01
+    value = 1
+  [../]
+
+  [./left1]
+    type = DirichletBC
+    variable = u
+    boundary = boundary10
+    value = 0
+  [../]
+
+  [./right1]
+    type = DirichletBC
+    variable = u
+    boundary = boundary12
+    value = 0
+  [../]
+
+  [./left2]
+    type = DirichletBC
+    variable = u
+    boundary = boundary21
+    value = 1
+  [../]
+
+  [./right2]
+    type = DirichletBC
+    variable = u
+    boundary = boundary23
+    value = 0
+  [../]
+
+  [./left3]
+    type = DirichletBC
+    variable = u
+    boundary = boundary32
+    value = 0
+  [../]
+
+  [./right3]
+    type = DirichletBC
+    variable = u
+    boundary = boundary34
+    value = 0
+  [../]
+
+  [./left4]
+    type = DirichletBC
+    variable = u
+    boundary = boundary43
+    value = 0
+  [../]
+
+  [./right4]
+    type = DirichletBC
+    variable = u
+    boundary = right
+    value = 1
+  [../]
+[]
+
+[Executioner]
+  type = Steady
+  solve_type = 'NEWTON'
+[]
+
+[Outputs]
+  exodus = true
+[]