test(fields): add LocalField structure test

Test file included in main test/runtests.jl Tests LocalField{T,G,R,GR} structure for material evaluation
2026-08-06 04:21:33 +00:00 · 2025-12-15 06:32:57 +02:00
parent b0897a40e3
commit 6514c025d0
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+# This file is a part of JuliaFEM.
+# License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
+
+using Test
+using JuliaFEM
+using Tensors
+
+@testset "LocalField" begin
+    @testset "Scalar field (Temperature)" begin
+        # Create temperature field at a point
+        T = 300.0
+        ∇T = Vec{3}((1.0, 2.0, 3.0))
+        Ṫ = 0.5
+        ∇Ṫ = Vec{3}((0.1, 0.2, 0.3))
+
+        T_local = LocalField(T, ∇T, Ṫ, ∇Ṫ)
+
+        @test T_local.value == 300.0
+        @test T_local.gradient == Vec{3}((1.0, 2.0, 3.0))
+        @test T_local.rate == 0.5
+        @test T_local.gradient_rate == Vec{3}((0.1, 0.2, 0.3))
+
+        # Type stability
+        @test typeof(T_local) == LocalField{Float64, Vec{3,Float64}, Float64, Vec{3,Float64}}
+    end
+
+    @testset "Vector field (Displacement)" begin
+        # Create displacement field at a point
+        u = Vec{3}((0.1, 0.2, 0.3))
+        ∇u = Tensor{2,3}((1.0, 0.1, 0.0,
+                          0.1, 1.0, 0.0,
+                          0.0, 0.0, 1.0))
+        u̇ = Vec{3}((0.01, 0.02, 0.03))
+        ∇u̇ = Tensor{2,3}((0.001, 0.0, 0.0,
+                          0.0, 0.001, 0.0,
+                          0.0, 0.0, 0.001))
+
+        u_local = LocalField(u, ∇u, u̇, ∇u̇)
+
+        @test u_local.value == u
+        @test u_local.gradient == ∇u
+        @test u_local.rate == u̇
+        @test u_local.gradient_rate == ∇u̇
+
+        # Type stability
+        @test typeof(u_local) == LocalField{Vec{3,Float64}, Tensor{2,3,Float64,9}, Vec{3,Float64}, Tensor{2,3,Float64,9}}
+    end
+
+    @testset "Quasi-static case (rate = 0)" begin
+        # Quasi-static: rate = 0, but gradient_rate is computed from increments
+        u = Vec{3}((0.1, 0.2, 0.3))
+        ∇u = Tensor{2,3}((1.01, 0.0, 0.0,
+                          0.0, 1.02, 0.0,
+                          0.0, 0.0, 1.03))
+        u̇ = zero(Vec{3})  # No velocity in quasi-static
+        ∇u̇ = Tensor{2,3}((0.01, 0.0, 0.0,
+                          0.0, 0.02, 0.0,
+                          0.0, 0.0, 0.03))  # Still computed from increment!
+
+        u_local = LocalField(u, ∇u, u̇, ∇u̇)
+
+        @test u_local.value == u
+        @test u_local.rate == zero(Vec{3})
+        @test u_local.gradient_rate ≠ zero(Tensor{2,3})  # Gradient rate is NOT zero!
+    end
+
+    # NOTE: create_local_field_namedtuple() was removed - use interpolate_local_fields() instead
+    # See test/elements/test_interpolate_local_fields.jl for the real implementation tests
+end