test and docs fixes

Author: MartinuzziFrancesco

src/states.jl

@@ -119,6 +119,11 @@ julia> new_mat = states(test_mat, fill(3.0f0, 3))
 """
 struct ExtendedStates <: AbstractStates end
 
+function (states_type::ExtendedStates)(mat::AbstractMatrix, inp::AbstractMatrix)
+    results = states_type.(eachcol(mat), eachcol(inp))
+    return hcat(results...)
+end
+
 function (states_type::ExtendedStates)(mat::AbstractMatrix, inp::AbstractVector)
     results = Vector{Vector{eltype(mat)}}(undef, size(mat, 2))
     for (idx, col) in enumerate(eachcol(mat))

test/test_states.jl

@@ -12,12 +12,10 @@ nlas = [(NLADefault(), test_array),
 
 pes = [(StandardStates(), test_array),
     (PaddedStates(; padding=padding),
-        reshape(vcat(padding, test_array), length(test_array) + 1, 1)),
+        vcat(test_array, padding)),
     (PaddedExtendedStates(; padding=padding),
-        reshape(vcat(padding, extension, test_array),
-            length(test_array) + length(extension) + 1,
-            1)),
-    (ExtendedStates(), vcat(extension, test_array))]
+        vcat(test_array, padding, extension)),
+    (ExtendedStates(), vcat(test_array, extension))]
 
 @testset "States Testing" for T in test_types
     @testset "Nonlinear Algorithms Testing: $algo $T" for (algo, expected_output) in nlas