Update basictests.jl

Author: ChrisRackauckas

test/basictests.jl

@@ -459,3 +459,10 @@ end
         end
     end
 end # testset
+
+# https://github.com/SciML/LinearSolve.jl/issues/347
+A = rand(4, 4); b = rand(4); u0 = zeros(4);
+lp = LinearProblem(A, b; u0 = view(u0, :));
+truesol = solve(lp, LUFactorization())
+krylovsol = solve(lp, KrylovJL_GMRES())
+@test truesol ≈ krylovsol