Update tests

Author: janbruedigam

test/ldu_test.jl

@@ -34,7 +34,7 @@ A[20,41] = A[41,20] = 1
 
 ids = rand(1:1000,1000)
 ids = unique(ids)
-system = System{Float64}(A, [rand(1:3) for i=1:size(A)[1]]; ids = collect(1:size(A)[1]))
+system = System{Float64}(A, [rand(0:3) for i=1:size(A)[1]]; ids = collect(1:size(A)[1]))
 
 for i=1:10
     for entry in collect(values(system.matrix_entries))