Add a test for the new factory.

test/plans/test_nonlinear_least_squares_plan.jl

@@ -0,0 +1,25 @@
+using Manifolds, Manopt, Test
+
+@testset "Nonlinear lest squares plane" begin
+    @testset "Test cost/residual/jacobian cases with smoothing" begin end
+    @testset "Smootthing factory" begin
+        s1 = Manopt.smoothing_factory(:Identity)
+        @test s1 isa ManifoldHessianObjective
+
+        s2 = Manopt.smoothing_factory((:Identity, 2))
+        @test s2 isa VectorHessianFunction
+        @test length(s2) == 2
+
+        s3 = Manopt.smoothing_factory((:Identity, 3.0))
+        @test s3 isa ManifoldHessianObjective
+
+        for s in [:Arctan, :Cauchy, :Huber, :SoftL1, :Tukey]
+            s4 = Manopt.smoothing_factory(s)
+            @test s4 isa ManifoldHessianObjective
+        end
+
+        s5 = Manopt.smoothing_factory(((:Identity, 2), (:Huber, 3)))
+        @test s5 isa VectorHessianFunction
+        @test length(s5) == 5
+    end
+end

test/runtests.jl

@@ -16,6 +16,7 @@ include("utils/example_tasks.jl")
         include("plans/test_conjugate_residual_plan.jl")
         include("plans/test_interior_point_newton_plan.jl")
         include("plans/test_nelder_mead_plan.jl")
+        include("plans/test_nonlinear_least_squares_plan.jl")
         include("plans/test_gradient_plan.jl")
         include("plans/test_constrained_plan.jl")
         include("plans/test_hessian_plan.jl")