diff --git a/test/n-2.jl b/test/n-2.jl
new file mode 100644
index 0000000..d4519da
--- /dev/null
+++ b/test/n-2.jl
@@ -0,0 +1,111 @@
+using Test
+using ProxAL
+using DelimitedFiles, Printf
+using LinearAlgebra, JuMP
+using CatViews
+using CUDA
+using AMDGPU
+using MPI
+using LazyArtifacts
+
+use_MPI = !isempty(ARGS) && (parse(Bool, ARGS[1]) == true)
+use_MPI && MPI.Init()
+const DATA_DIR = joinpath(artifact"ExaData", "ExaData")
+# N-2 case9 files
+case = "case9_2"
+T = 2
+ramp_scale = 0.5
+load_scale = 1.0
+rtol = 1e-4
+
+# Load case
+case_file = joinpath(DATA_DIR, "mp_demand", "$(case).m")
+load_file = joinpath(DATA_DIR, "mp_demand", "$(case)")
+
+# Model/formulation settings
+modelinfo = ModelInfo()
+modelinfo.num_time_periods = T
+modelinfo.load_scale = load_scale
+modelinfo.ramp_scale = ramp_scale
+modelinfo.allow_obj_gencost = true
+modelinfo.allow_constr_infeas = false
+modelinfo.weight_freq_ctrl = 0.1
+modelinfo.time_link_constr_type = :penalty
+modelinfo.obj_scale = 1e-4
+
+# Algorithm settings
+algparams = AlgParams()
+algparams.verbose = 0
+
+solver_list = ["ExaAdmmCPU"]
+
+@testset "Test ProxAL on $(case)" begin
+    modelinfo.case_name = case
+
+    using Ipopt
+    backend = JuMPBackend()
+    algparams.optimizer =
+        optimizer_with_attributes(Ipopt.Optimizer,
+            "print_level" => Int64(algparams.verbose > 0)*5)
+    K = 1
+    modelinfo.num_ctgs = K
+    # ctgs_link = :preventive_penalty
+    OPTIMAL_OBJVALUE = []
+    OPTIMAL_PG = []
+    OPTIMAL_WT = []
+
+    algparams.iterlim = 10000
+    algparams.decompCtgs = true
+    modelinfo.ctgs_link_constr_type = :corrective_penalty
+    algparams.mode = :coldstart
+    algparams.tol = 1e-3
+    algparams.verbose = 0
+    nlp = ProxALEvaluator(case_file, load_file, modelinfo, algparams, backend, use_MPI ? MPI.COMM_WORLD : nothing)
+    runinfo = ProxAL.optimize!(nlp)
+    OPTIMAL_OBJVALUE = runinfo.objvalue[end]
+    OPTIMAL_PG = runinfo.x.Pg[:,1,:][:]
+    OPTIMAL_WT = runinfo.x.ωt[:]
+    @test runinfo.maxviol_c[end] <= algparams.tol
+    @test runinfo.maxviol_t[end] <= algparams.tol
+    @test runinfo.maxviol_c_actual[end] <= algparams.tol
+    @test runinfo.maxviol_t_actual[end] <= algparams.tol
+    @test runinfo.maxviol_d[end] <= algparams.tol
+    @test runinfo.iter <= algparams.iterlim
+    algparams.decompCtgs = false
+    algparams.verbose = 0
+    nlp = ProxALEvaluator(case_file, load_file, modelinfo, algparams, backend, use_MPI ? MPI.COMM_WORLD : nothing)
+    runinfo = ProxAL.optimize!(nlp)
+    @test_broken isapprox(runinfo.objvalue[end], OPTIMAL_OBJVALUE, rtol = 1e-2)
+    @test_broken isapprox(runinfo.x.Pg[:,1,:][:], OPTIMAL_PG, rtol = 1e-1)
+    @test isapprox(runinfo.maxviol_c[end], 0.0)
+    @test isapprox(runinfo.maxviol_c_actual[end], 0.0)
+    @test runinfo.maxviol_c_actual[end] <= algparams.tol
+    @test runinfo.maxviol_t_actual[end] <= algparams.tol
+    @test runinfo.maxviol_d[end] <= algparams.tol
+
+    backend = AdmmBackend()
+    algparams.tron_outer_iterlim=20
+    algparams.tron_inner_iterlim=800
+    algparams.tron_outer_eps=1e-6
+    algparams.decompCtgs = true
+    algparams.mode = :coldstart
+    algparams.iterlim = 10000
+    algparams.verbose = 0
+    algparams.init_opf = false
+    algparams.θ_c = 1.0
+    algparams.ρ_c = 1.0
+    # Reduce tolerance for N-2
+    algparams.tol = 1e-3
+    nlp = ProxALEvaluator(case_file, load_file, modelinfo, algparams, backend, use_MPI ? MPI.COMM_WORLD : nothing)
+    runinfo = ProxAL.optimize!(nlp)
+    @test isapprox(runinfo.objvalue[end], OPTIMAL_OBJVALUE, rtol = 1e-2)
+    @test isapprox(runinfo.x.Pg[:,1,:][:], OPTIMAL_PG, rtol = 1e-1)
+    @test runinfo.maxviol_c[end] <= algparams.tol
+    @test runinfo.maxviol_t[end] <= algparams.tol
+    @test runinfo.maxviol_c_actual[end] <= algparams.tol
+    @test runinfo.maxviol_t_actual[end] <= algparams.tol
+    @test runinfo.maxviol_d[end] <= algparams.tol
+    @test runinfo.iter <= algparams.iterlim
+end
+
+use_MPI && MPI.Finalize()
diff --git a/test/runtests.jl b/test/runtests.jl
index 43b870e..1e22de6 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -15,6 +15,10 @@ testdir = @__DIR__
     @testset "Sequential tests" begin
         include("convergence.jl")
     end
+    # Testing N-2
+    @testset "Sequential tests" begin
+        include("n-2.jl")
+    end
 
     # Testing using 2 processes