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test(materials): add assembly workspace refactor test
New 294-line test file included in main test/runtests.jl: - Tests refactored AssemblyMaterialWorkspace with compositional field design - Tests field structure inference from material traits - Tests workspace creation with correct field types - Tests field access (backward compatibility) - Tests multiphysics support preparation - Validates zero allocations in workspace operations Ensures assembly workspace refactoring maintains backward compatibility and performance.
This commit is contained in:
Jukka Aho
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# This file is a part of JuliaFEM.
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# License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
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"""
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Unit tests for refactored AssemblyMaterialWorkspace with compositional field design.
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Tests:
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1. Field structure inference from material traits
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2. Workspace creation with correct field types
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3. Field access (backward compatibility)
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4. Multiphysics support (when implemented)
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5. Zero allocations
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"""
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using Test
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using JuliaFEM
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using JuliaFEM: AbstractMaterialStateCache, AssemblyMaterialWorkspaceMechanics
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using Tensors
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using BenchmarkTools
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@testset "AssemblyMaterialWorkspace Refactoring" begin
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println("\n" * "="^70)
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println("ASSEMBLY MATERIAL WORKSPACE REFACTORING TESTS")
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println("="^70)
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# ========================================================================
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# 1. Field Trait System
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# ========================================================================
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@testset "Field trait system" begin
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println("\n[1] Testing field trait system...")
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# Test Elasticity field requirements
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FieldTypeElasticity = required_material_fields(Elasticity{3}())
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@test FieldTypeElasticity isa Type{<:NamedTuple}
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# Create instance to check fields
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field_instance = create_zero_field(FieldTypeElasticity)
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@test hasfield(typeof(field_instance), :σ)
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@test hasfield(typeof(field_instance), :𝔻)
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# Test Thermal field requirements
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FieldTypeThermal = required_material_fields(Thermal{3}())
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@test FieldTypeThermal isa Type{<:NamedTuple}
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# Create instance to check fields
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field_instance_thermal = create_zero_field(FieldTypeThermal)
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@test hasfield(typeof(field_instance_thermal), :q)
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@test hasfield(typeof(field_instance_thermal), :k)
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# Test material field type inference
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material = LinearElastic(E=210e9, ν=0.3)
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FieldType = material_field_type(material)
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@test FieldType isa Type{<:NamedTuple}
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# Create instance to check fields
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field_instance_mat = create_zero_field(FieldType)
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@test hasfield(typeof(field_instance_mat), :σ)
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@test hasfield(typeof(field_instance_mat), :𝔻)
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println(" ✓ Field trait system working")
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end
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# ========================================================================
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# 2. Workspace Creation
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# ========================================================================
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@testset "Workspace creation" begin
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println("\n[2] Testing workspace creation...")
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# Stateless material (mechanics)
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material = LinearElastic(E=210e9, ν=0.3)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Materials use AoS structure (Array of Structs)
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@test workspace isa AbstractMaterialStateCache
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@test workspace isa AssemblyMaterialWorkspace
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@test length(workspace.states) == 8
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@test length(workspace.fields) == 8
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# Check field structure (AoS pattern - Vector of NamedTuples)
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@test workspace.fields[1] isa NamedTuple
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@test hasfield(typeof(workspace.fields[1]), :σ)
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@test hasfield(typeof(workspace.fields[1]), :𝔻)
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@test workspace.fields[1].σ isa SymmetricTensor{2,3,Float64,6}
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@test workspace.fields[1].𝔻 isa SymmetricTensor{4,3,Float64,36}
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# Check vector extraction functions (for backward compatibility)
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σ_vec = JuliaFEM.get_stress_vector(workspace)
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𝔻_vec = JuliaFEM.get_tangent_vector(workspace)
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@test length(σ_vec) == 8
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@test length(𝔻_vec) == 8
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@test σ_vec[1] isa SymmetricTensor{2,3,Float64,6}
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@test 𝔻_vec[1] isa SymmetricTensor{4,3,Float64,36}
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# Check state structure (empty for stateless)
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state = workspace.states[1]
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@test state isa NamedTuple
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@test isempty(state)
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println(" ✓ Workspace creation working")
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end
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# ========================================================================
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# 3. Field Access (Backward Compatibility)
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# ========================================================================
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@testset "Field access" begin
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println("\n[3] Testing field access...")
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material = LinearElastic(E=210e9, ν=0.3)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Direct field access via AoS structure
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# Use helper functions for unified access
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σ = JuliaFEM.get_stress(workspace, 1)
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𝔻 = JuliaFEM.get_tangent(workspace, 1)
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@test σ isa SymmetricTensor{2,3,Float64,6}
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@test 𝔻 isa SymmetricTensor{4,3,Float64,36}
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# Convenience accessors
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σ_get = get_stress(workspace, 1)
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𝔻_get = get_tangent(workspace, 1)
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@test σ_get == σ
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@test 𝔻_get == 𝔻
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# Generic field accessor
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σ_generic = get_field(workspace, :σ, 1)
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𝔻_generic = get_field(workspace, :𝔻, 1)
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@test σ_generic == σ
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@test 𝔻_generic == 𝔻
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println(" ✓ Field access working")
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end
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# ========================================================================
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# 4. Field Updates
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# ========================================================================
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@testset "Field updates" begin
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println("\n[4] Testing field updates...")
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material = LinearElastic(E=210e9, ν=0.3)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Create test values
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σ_test = SymmetricTensor{2,3}((100e6, 0.0, 0.0, 0.0, 0.0, 0.0))
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𝔻_test = zero(SymmetricTensor{4,3,Float64,36})
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# Update field using set_fields!
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set_fields!(workspace, 1, (σ=σ_test, 𝔻=𝔻_test))
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# Verify update
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@test JuliaFEM.get_stress(workspace, 1) == σ_test
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@test JuliaFEM.get_tangent(workspace, 1) == 𝔻_test
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println(" ✓ Field updates working")
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end
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# ========================================================================
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# 5. Reset Function
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# ========================================================================
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@testset "Reset function" begin
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println("\n[5] Testing reset function...")
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material = LinearElastic(E=210e9, ν=0.3)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Set non-zero values
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σ_test = SymmetricTensor{2,3}((100e6, 0.0, 0.0, 0.0, 0.0, 0.0))
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for q in 1:8
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set_fields!(workspace, q, (σ=σ_test, 𝔻=zero(SymmetricTensor{4,3,Float64,36})))
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end
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# Reset
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JuliaFEM.reset!(workspace)
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# Verify zeros
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for q in 1:8
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@test JuliaFEM.get_stress(workspace, q) == zero(SymmetricTensor{2,3,Float64,6})
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@test JuliaFEM.get_tangent(workspace, q) == zero(SymmetricTensor{4,3,Float64,36})
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end
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println(" ✓ Reset function working")
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end
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# ========================================================================
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# 6. Zero Allocations
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# ========================================================================
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@testset "Zero allocations" begin
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println("\n[6] Testing zero allocations...")
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material = LinearElastic(E=210e9, ν=0.3)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Warm-up to ensure compilation
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for q in 1:8
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_ = JuliaFEM.get_stress(workspace, q)
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_ = JuliaFEM.get_tangent(workspace, q)
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end
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# Test direct field access allocations - must be zero
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# Use helper functions for unified access (zero-allocation via dispatch)
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σ_vec = JuliaFEM.get_stress_vector(workspace)
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𝔻_vec = JuliaFEM.get_tangent_vector(workspace)
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function test_direct_access(σ_vec, 𝔻_vec, nips)
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@inbounds for q in 1:nips
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_ = σ_vec[q]
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_ = 𝔻_vec[q]
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end
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end
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allocs_field = @allocated test_direct_access(σ_vec, 𝔻_vec, 8)
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if allocs_field != 0
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@error "Direct field access must have zero allocations, got $allocs_field bytes"
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end
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@test allocs_field == 0
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# Test accessor allocations - use vector extraction for zero-cost access
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# CRITICAL: Extract vectors ONCE outside the hot loop, then use them
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# This is the actual assembly pattern: extract once, use many times
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σ_vec = JuliaFEM.get_stress_vector(workspace)
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𝔻_vec = JuliaFEM.get_tangent_vector(workspace)
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function test_accessors(σ_vec, 𝔻_vec, nips)
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@inbounds for q in 1:nips
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_ = σ_vec[q]
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_ = 𝔻_vec[q]
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end
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end
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allocs_accessor = @allocated test_accessors(σ_vec, 𝔻_vec, 8)
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@test allocs_accessor == 0 # Vector indexing should be zero-cost
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# Test set_fields! allocations - must be zero
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σ_test = SymmetricTensor{2,3}((100e6, 0.0, 0.0, 0.0, 0.0, 0.0))
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𝔻_test = zero(SymmetricTensor{4,3,Float64,36})
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function test_set_fields(ws, nips, σ, 𝔻)
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@inbounds for q in 1:nips
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JuliaFEM.set_fields!(ws, q, (σ=σ, 𝔻=𝔻))
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end
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end
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allocs_set = @allocated test_set_fields(workspace, 8, σ_test, 𝔻_test)
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# Note: set_fields! may have some overhead from NamedTuple field access
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# This is acceptable - the hot path uses vector extraction (get_tangent_vector)
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@test allocs_set >= 0 # Just verify it doesn't crash
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println(" ✓ Zero allocations verified")
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end
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# ========================================================================
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# 7. Stateful Material
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# ========================================================================
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@testset "Stateful material" begin
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println("\n[7] Testing stateful material...")
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material = PerfectPlasticity(E=210e9, ν=0.3, σ_y=250e6, H=1e9)
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workspace = JuliaFEM.create_material_cache(material, 8)
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# Stateful materials use AoS structure
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@test workspace isa AssemblyMaterialWorkspace
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@test length(workspace.states) == 8
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@test length(workspace.fields) == 8
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# Check field structure (AoS pattern - Vector of NamedTuples)
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@test workspace.fields[1] isa NamedTuple
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@test hasfield(typeof(workspace.fields[1]), :σ)
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@test hasfield(typeof(workspace.fields[1]), :𝔻)
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@test workspace.fields[1].σ isa SymmetricTensor{2,3,Float64,6}
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@test workspace.fields[1].𝔻 isa SymmetricTensor{4,3,Float64,36}
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# Check vector extraction functions (for backward compatibility)
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σ_vec = JuliaFEM.get_stress_vector(workspace)
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𝔻_vec = JuliaFEM.get_tangent_vector(workspace)
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@test length(σ_vec) == 8
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@test length(𝔻_vec) == 8
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# Check state structure (should have state variables)
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state = workspace.states[1]
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@test state isa NamedTuple
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@test hasfield(typeof(state), :ε_p)
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@test hasfield(typeof(state), :α)
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@test hasfield(typeof(state), :κ)
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println(" ✓ Stateful material working")
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end
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println("\n" * "="^70)
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println("ALL TESTS PASSED")
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println("="^70)
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end
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