make init input mapping order agnostic

was hard coded before and failed when the order of symbols changed

Author: hexaeder

test/initialization_test.jl

@@ -439,7 +439,10 @@ end
     @test_throws ArgumentError InitConstraint(c10, c11)
 end
 
+_recursive_replace(el::Symbol, dict) = haskey(dict, el) ? dict[el] : NaN
+_recursive_replace(containter, dict) = map(el -> _recursive_replace(el, dict), containter)
 @testset "test input mapping" begin
+    using NetworkDynamics: insym_normalized, outsym_normalized
     vm = Lib.swing_mtk()
     c = @initconstraint begin
         :Pdamping # observable
@@ -448,9 +451,18 @@ end
         :ω # state
         :Pmech # parameter
     end
+    dict = Dict(:Pdamping => 1, :P=> 2, :θ => 3, :ω => 4, :Pmech => 5)
+
+    outdata = _recursive_replace(outsym_normalized(vm), dict)
+    udata   = _recursive_replace(sym(vm), dict)
+    indata  = _recursive_replace(insym_normalized(vm), dict)
+    pdata   = _recursive_replace(psym(vm), dict)
+    obsdata = _recursive_replace(obssym(vm), dict)
+
     mapping! = NetworkDynamics.generate_init_input_mapping(vm, c)
+
     syms = zeros(5)
-    mapping!(syms, ([3],), [NaN, 4], ([2],), [NaN, 5, NaN], [1])
+    mapping!(syms, outdata, udata, indata, pdata, obsdata)
     @test syms == 1:5
 
     em = Lib.line_mtk()
@@ -460,9 +472,17 @@ end
         :active #param
         :Δθ # obs
     end
+    dict = Dict(:P => 1, :dstθ => 2, :active => 3, :Δθ => 4)
+
+    outdata = _recursive_replace(outsym_normalized(em), dict)
+    udata   = _recursive_replace(sym(em), dict)
+    indata  = _recursive_replace(insym_normalized(em), dict)
+    pdata   = _recursive_replace(psym(em), dict)
+    obsdata = _recursive_replace(obssym(em), dict)
+
     mapping! = NetworkDynamics.generate_init_input_mapping(em, c)
     syms = zeros(4)
-    mapping!(syms, ([NaN],[1]), [], ([NaN],[2]), [NaN, NaN, 3], [4])
+    mapping!(syms, outdata, udata, indata, pdata, obsdata)
     @test syms == 1:4
 end