added an edge case for LatticeReactionSysetm

Signed-off-by: sivasathyaseeelan <[email protected]>

Author: sivasathyaseeelan

test/spatial_modelling/lattice_reaction_systems.jl

@@ -215,6 +215,20 @@ let
     end
 end
 
+# The second argument must be a vector of AbstractSpatialReaction subtypes.
+let 
+    rs = @reaction_network begin
+        (p,d), 0 <--> X
+    end
+
+    # Define an invalid spatial reaction type (not a subtype of AbstractSpatialReaction)
+    struct InvalidSpatialReaction end
+
+    # Attempt to create the LatticeReactionSystem with InvalidSpatialReaction
+    lattice = CartesianGrid((5,5))
+    @test_throws ArgumentError LatticeReactionSystem(rs, [InvalidSpatialReaction()], lattice)
+end
+
 # Tests various networks with non-permitted content.
     let
     tr = @transport_reaction D X