Add missing bracket in summary of NGMRES and O-ACCEL (#1204)

* Add missing bracket in summary of `NGMRES` and `O-ACCEL`

* Add tests

Author: devmotion

src/multivariate/solvers/first_order/ngmres.jl

@@ -30,13 +30,13 @@ end
 
 
 function Base.summary(io::IO, s::NGMRES)
-    print(io, "Nonlinear GMRES preconditioned with ")
+    print(io, "Nonlinear GMRES (preconditioned with ")
     summary(io, s.nlprecon)
     print(io, ")")
     return
 end
 function Base.summary(io::IO, s::OACCEL)
-    print(io, "O-ACCEL preconditioned with ")
+    print(io, "O-ACCEL (preconditioned with ")
     summary(io, s.nlprecon)
     print(io, ")")
     return

test/multivariate/solvers/first_order/ngmres.jl

@@ -4,6 +4,7 @@ using Optim, Test
 @testset "N-GMRES" begin
     method = NGMRES
     solver = method()
+    test_summary(solver, "Nonlinear GMRES (preconditioned with Gradient Descent)")
 
     skip = ("Trigonometric",)
     run_optim_tests(
@@ -94,6 +95,8 @@ end
 @testset "O-ACCEL" begin
     method = OACCEL
     solver = method()
+    test_summary(solver, "O-ACCEL (preconditioned with Gradient Descent)")
+
     skip = ("Trigonometric",)
     run_optim_tests(
         solver;