test: add test suites for new DOF-based architecture

Add test includes for new architecture components: fields, physics,
element interpolation, materials, topology, and validation.

- Add LocalField type test
- Add fields test suite (test_local_field.jl)
- Add physics test suite (test_strain.jl)
- Add element interpolation test suite (test_interpolate_local_fields.jl)
- Add material test suites (state variables, traits, global cache, plasticity, workspace)
- Add topology test suites (segments, triangles, quadrilaterals, entities, etc.)
- Add validation test (test_plasticity_simple.jl)
- Comment out obsolete topology type extraction test

test/runtests.jl

@@ -31,6 +31,46 @@ using JuliaFEM, Test
         @test LinearElastic isa Type
         @test Hex8 isa Type
         @test Tet4 isa Type
+        @test LocalField isa Type
+    end
+
+    # Field tests
+    @testset "Fields" begin
+        include("fields/test_local_field.jl")
+    end
+
+    # Physics tests
+    @testset "Physics" begin
+        include("physics/test_strain.jl")
+    end
+
+    # Element interpolation tests
+    @testset "Element Interpolation" begin
+        include("elements/test_interpolate_local_fields.jl")
+    end
+
+    # Material tests
+    @testset "Materials" begin
+        include("materials/test_state_variables.jl")
+        include("materials/test_traits.jl")
+        include("materials/test_global_material_cache.jl")
+        include("materials/test_plasticity_integration.jl")
+        include("materials/test_cantilever_material_cache_zero_allocations.jl")
+        include("materials/test_assembly_workspace_refactor.jl")
+    end
+
+    # Topology tests
+    @testset "Topology" begin
+        include("topology/test_segments.jl")
+        include("topology/test_triangles.jl")
+        include("topology/test_quadrilaterals.jl")
+        include("topology/test_topology_entities_tetrahedron.jl")
+        include("topology/test_hexahedra.jl")
+        include("topology/test_pyramids.jl")
+        include("topology/test_wedges.jl")
+        # include("topology/test_topology_type_extraction.jl")  # DISABLED: obsolete API (entities don't carry topology)
+        include("topology/test_topological_invariance.jl")
+        include("topology/test_entity_dimensions.jl")
     end
 
     # Domain-specific tests
@@ -40,6 +80,7 @@ using JuliaFEM, Test
 
     # Validation tests
     include("validation/test_cantilever_regression.jl")
+    include("validation/test_plasticity_simple.jl")
 end
 
 # Note: All legacy tests have been moved to test/broken/