test: for vanilla-@variable syntax with arbitrary length

Author: ven-k

test/model_parsing.jl

@@ -281,17 +281,32 @@ end
 
 @testset "Arrays using vanilla-@variable syntax" begin
     @mtkmodel TupleInArrayDef begin
+        @structural_parameters begin
+            N
+            M
+        end
         @parameters begin
             (l(t)[1:2, 1:3] = 1), [description = "l is more than 1D"]
-            (l2(t)[1:3] = 2), [description = "l2 is 1D"]
-            (l3(t)[1:3]::Int = 3), [description = "l3 is 1D and has a type"]
+            (l2(t)[1:N, 1:M] = 2), [description = "l is more than 1D, with arbitrary length"]
+            (l3(t)[1:3] = 3), [description = "l2 is 1D"]
+            (l4(t)[1:N] = 4), [description = "l2 is 1D, with arbitrary length"]
+            (l5(t)[1:3]::Int = 5), [description = "l3 is 1D and has a type"]
+            (l6(t)[1:N]::Int = 6), [description = "l3 is 1D and has a type, with arbitrary length"]
         end
     end
 
-    @named arr = TupleInArrayDef()
+    N, M = 4, 5
+    @named arr = TupleInArrayDef(; N, M)
     @test getdefault(arr.l) == 1
     @test getdefault(arr.l2) == 2
     @test getdefault(arr.l3) == 3
+    @test getdefault(arr.l4) == 4
+    @test getdefault(arr.l5) == 5
+    @test getdefault(arr.l6) == 6
+    
+    @test size(arr.l2) == (N, M)
+    @test size(arr.l4) == (N,)
+    @test size(arr.l6) == (N,)
 end
 
 @testset "Type annotation" begin