Fix one more test

Author: penelopeysm

test/model.jl

@@ -58,11 +58,11 @@ const GDEMO_DEFAULT = DynamicPPL.TestUtils.demo_assume_observe_literal()
 
         #### logprior, logjoint, loglikelihood for MCMC chains ####
         for model in DynamicPPL.TestUtils.DEMO_MODELS
-            N = 200
-            chain = make_chain_from_prior(model, N)
+            chain = make_chain_from_prior(model, 200)
             logpriors = logprior(model, chain)
             loglikelihoods = loglikelihood(model, chain)
             logjoints = logjoint(model, chain)
+            chain_sym_map = Dict()
             # compare them with true values
             for i in 1:N
                 samples_dict = Dict()
@@ -121,10 +121,11 @@ const GDEMO_DEFAULT = DynamicPPL.TestUtils.demo_assume_observe_literal()
         model = GDEMO_DEFAULT
 
         Random.seed!(100)
-        s, m = model()
+        retval = model()
 
         Random.seed!(100)
-        @test model(Random.default_rng()) == (s, m)
+        @test model(Random.default_rng()).s == retval.s
+        @test model(Random.default_rng()).m == retval.m
     end
 
     @testset "nameof" begin