Fix doctest for Julia 1.6

Author: simonschoelly

src/matrices.jl

@@ -34,7 +34,7 @@ julia> AdjacencyMatrix(g)
  1  1  0  0
 
 julia> AdjacencyMatrix(g) |> Matrix
-4×4 Array{Bool,2}:
+4×4 Matrix{Bool}:
  0  0  1  1
  0  0  1  1
  1  1  0  0
@@ -71,7 +71,7 @@ julia> gv = ValGraph(star_graph(4), edgeval_types=(Float64,), edgeval_init=(s, d
    graph value types: ()
 
 julia> adjacency_matrix(gv)
-4×4 AdjacencyMatrix{ValGraph{Int64,Tuple{},Tuple{Float64},Tuple{},Tuple{},Tuple{Array{Array{Float64,1},1}}}}:
+4×4 AdjacencyMatrix{ValGraph{Int64, Tuple{}, Tuple{Float64}, Tuple{}, Tuple{}, Tuple{Vector{Vector{Float64}}}}}:
  0  1  1  1
  1  0  0  0
  1  0  0  0
@@ -201,13 +201,13 @@ julia> gv = ValDiGraph(path_digraph(3),  edgeval_types=(a=Float64, b=String), ed
    graph value types: ()
 
 julia> ValMatrix(gv, 1, 0.0)
-3×3 ValMatrix{Float64,ValDiGraph{Int64,Tuple{},NamedTuple{(:a, :b),Tuple{Float64,String}},Tuple{},Tuple{},NamedTuple{(:a, :b),Tuple{Array{Array{Float64,1},1},Array{Array{String,1},1}}}},1}:
+3×3 ValMatrix{Float64, ValDiGraph{Int64, Tuple{}, NamedTuple{(:a, :b), Tuple{Float64, String}}, Tuple{}, Tuple{}, NamedTuple{(:a, :b), Tuple{Vector{Vector{Float64}}, Vector{Vector{String}}}}}, 1}:
  0.0  0.823648  0.0
  0.0  0.0       0.823648
  0.0  0.0       0.0
 
 julia> ValMatrix(gv, :b, nothing)
-3×3 ValMatrix{Union{Nothing, String},ValDiGraph{Int64,Tuple{},NamedTuple{(:a, :b),Tuple{Float64,String}},Tuple{},Tuple{},NamedTuple{(:a, :b),Tuple{Array{Array{Float64,1},1},Array{Array{String,1},1}}}},:b}:
+3×3 ValMatrix{Union{Nothing, String}, ValDiGraph{Int64, Tuple{}, NamedTuple{(:a, :b), Tuple{Float64, String}}, Tuple{}, Tuple{}, NamedTuple{(:a, :b), Tuple{Vector{Vector{Float64}}, Vector{Vector{String}}}}}, :b}:
  nothing  "1-2"    nothing
  nothing  nothing  "2-3"
  nothing  nothing  nothing