diff --git a/docs/pages.jl b/docs/pages.jl
index e17fbbe7b4..bbc977797c 100644
--- a/docs/pages.jl
+++ b/docs/pages.jl
@@ -40,7 +40,7 @@ pages = Any[
     "Steady state analysis" => Any[
         "steady_state_functionality/homotopy_continuation.md",
         "steady_state_functionality/nonlinear_solve.md",
-        #"steady_state_functionality/steady_state_stability_computation.md",
+        # "steady_state_functionality/steady_state_stability_computation.md",
         "steady_state_functionality/bifurcation_diagrams.md",
         "steady_state_functionality/dynamical_systems.md"
     ],
diff --git a/test/network_analysis/crn_theory.jl b/test/network_analysis/crn_theory.jl
index deb53b21b5..c5f824fa62 100644
--- a/test/network_analysis/crn_theory.jl
+++ b/test/network_analysis/crn_theory.jl
@@ -28,6 +28,18 @@ let
     @test_throws Exception Catalyst.iscomplexbalanced(rn, k)
 end
 
+# Test that incomplete rate maps error.
+let
+    rn = @reaction_network begin
+        (k1, k2), C1 <--> C2
+        (k3, k4), C2 <--> C3
+        (k5, k6), C3 <--> C1
+    end
+
+    incorrect_params = Dict(:k1 => 0.5)
+    @test_throws ErrorException Catalyst.iscomplexbalanced(rn, incorrect_params)
+end
+
 # Tests rate matrix computation for various input types.
 let
     # Declares network and its known rate matrix.
@@ -61,6 +73,13 @@ let
     Catalyst.ratematrix(rn, rates_vec) == rate_mat
     Catalyst.ratematrix(rn, rates_tup) == rate_mat
     Catalyst.ratematrix(rn, rates_dict) == rate_mat
+
+    # Tests that throws error in rate matrix.
+    incorrect_param_dict = Dict(:k1 => 1.0)
+
+    @test_throws ErrorException Catalyst.ratematrix(rn, 123)
+    @test_throws ErrorException Catalyst.ratematrix(rn, incorrect_param_dict)
+
     @test_throws Exception Catalyst.iscomplexbalanced(rn, rates_invalid)
 end
 
@@ -92,6 +111,16 @@ let
     @test Catalyst.robustspecies(EnvZ_OmpR) == [6]
 end
 
+let
+    # Define a reaction network with bi-directional reactions
+    non_deficient_network = @reaction_network begin
+        (k1, k2), A <--> B
+        (k3, k4), B <--> C 
+    end
+
+    # Test: Check that the error is raised for networks with deficiency != 1
+    @test_throws ErrorException Catalyst.robustspecies(non_deficient_network)
+end
 
 ### Complex balance and reversibility tests ###
 
diff --git a/test/reactionsystem_core/reactionsystem.jl b/test/reactionsystem_core/reactionsystem.jl
index 505781305a..0045b04c3c 100644
--- a/test/reactionsystem_core/reactionsystem.jl
+++ b/test/reactionsystem_core/reactionsystem.jl
@@ -107,6 +107,9 @@ end
 let
     @named rs2 = ReactionSystem(rxs, t)
     @test Catalyst.isequivalent(rs, rs2)
+
+    # Test with a type mismatch
+    @test Catalyst.isequivalent(rs, "Not a ReactionSystem") == false
 end
 
 # Defaults test.