From a605a0abb27eacb75d312f379e1d95e861bc1854 Mon Sep 17 00:00:00 2001
From: Jukka Aho <ahojukka5@gmail.com>
Date: Sat, 9 May 2026 18:30:06 +0300
Subject: [PATCH] chore(test): drop legacy modal analysis regression

Remove solver modal tests tied to deleted solver scaffolding.

- Delete `test/solvers/test_modal_analysis.jl`.
---
 test/solvers/test_modal_analysis.jl | 110 ----------------------------
 1 file changed, 110 deletions(-)
 delete mode 100644 test/solvers/test_modal_analysis.jl

diff --git a/test/solvers/test_modal_analysis.jl b/test/solvers/test_modal_analysis.jl
deleted file mode 100644
index 4248994..0000000
--- a/test/solvers/test_modal_analysis.jl
+++ /dev/null
@@ -1,110 +0,0 @@
-# This file is a part of JuliaFEM.
-# License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
-
-using JuliaFEM, Test
-
-X = Dict(
-    1 => [2.0, 3.0, 4.0],
-    2 => [6.0, 3.0, 2.0],
-    3 => [2.0, 5.0, 1.0],
-    4 => [4.0, 3.0, 6.0])
-u = Dict(
-    1 => [0.0, 0.0, 0.0],
-    2 => [0.0, 0.0, 0.0],
-    3 => [0.0, 0.0, 0.0],
-    4 => [0.25, 0.25, 0.25])
-element1 = Element(Tet4, (1, 2, 3, 4))
-element2 = Element(Tri3, (1, 2, 3))
-update!((element1, element2), "geometry", X)
-update!((element1, element2), "displacement", 0.0 => u)
-update!(element1, "youngs modulus", 96.0)
-update!(element1, "poissons ratio", 1.0/3.0)
-update!(element1, "density", 420.0)
-update!(element2, "displacement 1", 0.0)
-update!(element2, "displacement 2", 0.0)
-update!(element2, "displacement 3", 0.0)
-problem1 = Problem(Elasticity, "test problem", 3)
-problem1.properties.finite_strain = false
-problem1.properties.geometric_stiffness = false
-problem2 = Problem(Dirichlet, "boundary condition", 3, "displacement")
-add_elements!(problem1, element1)
-add_elements!(problem2, element2)
-analysis = Analysis(Modal)
-analysis.properties.which = :LM
-add_problems!(analysis, problem1, problem2)
-
-# test eigenvalues for single tet4 element
-run!(analysis)
-@test isapprox(analysis.properties.eigvals, [4/3, 1/3])
-
-# test eigenvalues for single tet4 element, with geometric stiffness
-problem1.properties.geometric_stiffness = true
-analysis.properties.geometric_stiffness = true
-run!(analysis)
-@test isapprox(analysis.properties.eigvals, [5/3, 2/3])
-
-# test poisson problem modal analysis without tie
-X = Dict(
-    1 => [0.0, 0.0],
-    2 => [1.0, 0.0],
-    3 => [1.0, 3.0],
-    4 => [0.0, 3.0],
-    5 => [0.0, 3.0],
-    6 => [1.0, 3.0],
-    7 => [1.0, 9.0],
-    8 => [0.0, 9.0])
-element1 = Element(Quad4, (1, 2, 3, 4))
-element2 = Element(Quad4, (4, 3, 7, 8))
-element3 = Element(Seg2, (1, 2))
-element4 = Element(Seg2, (7, 8))
-update!((element1, element2, element3, element4), "geometry", X)
-update!((element1, element2), "density", 6.0)
-update!((element1, element2), "thermal conductivity", 36.0)
-update!((element3, element4), "temperature 1", 0.0)
-problem1 = Problem(PlaneHeat, "combined body", 1)
-problem2 = Problem(Dirichlet, "fixed ends", 1, "temperature")
-add_elements!(problem1, element1, element2)
-add_elements!(problem2, element3, element4)
-analysis = Analysis(Modal)
-add_problems!(analysis, problem1, problem2)
-run!(analysis)
-@test isapprox(first(analysis.properties.eigvals), 1.0)
-
-#=
-@testset "test poisson modal problem with mesh tie" begin
-    X = Dict{Int64, Vector{Float64}}(
-        1 => [0.0, 0.0],
-        2 => [1.0, 0.0],
-        3 => [1.0, 3.0],
-        4 => [0.0, 3.0],
-        5 => [0.0, 3.0],
-        6 => [1.0, 3.0],
-        7 => [1.0, 9.0],
-        8 => [0.0, 9.0])
-    el1 = Element(Quad4, [1, 2, 3, 4])
-    el2 = Element(Quad4, [5, 6, 7, 8])
-    el3 = Element(Seg2, [1, 2])
-    el4 = Element(Seg2, [7, 8])
-    el5 = Element(Seg2, [3, 4])
-    el6 = Element(Seg2, [5, 6])
-    update!([el1, el2, el3, el4, el5, el6], "geometry", X)
-    update!([el1, el2], "density", 6.0)
-    update!([el1, el2], "thermal conductivity", 36.0)
-    update!([el3, el4], "temperature 1", 0.0)
-    update!(el5, "master elements", [el6])
-    p1 = Problem(PlaneHeat, "body 1", 1)
-    add_elements!(p1, [el1])
-    p2 = Problem(PlaneHeat, "body 2", 1)
-    add_elements!(p2, [el2])
-    p3 = Problem(Dirichlet, "fixed ends", 1, "temperature")
-    add_elements!(p3, [el3, el4])
-    p4 = Problem(Mortar2D, "interface between bodies", 1, "temperature")
-    add_slave_elements!(p4, [el5])
-    add_master_elements!(p4, [el6])
-
-    solver = Solver(Modal)
-    push!(solver, p1, p2, p3, p4)
-    solver()
-    @test isapprox(solver.properties.eigvals[1], 1.0)
-end
-=#