Add a test

Author: Smit-create

integration_tests/CMakeLists.txt

@@ -605,6 +605,7 @@ RUN(NAME structs_29          LABELS cpython llvm)
 RUN(NAME structs_30          LABELS cpython llvm c)
 RUN(NAME structs_31          LABELS cpython llvm c)
 RUN(NAME structs_32          LABELS cpython llvm c)
+RUN(NAME structs_33          LABELS cpython llvm c)
 
 RUN(NAME symbolics_01        LABELS cpython_sym c_sym)
 RUN(NAME symbolics_02        LABELS cpython_sym c_sym)

integration_tests/structs_33.py

@@ -0,0 +1,24 @@
+from lpython import packed, dataclass, i32, ccallback, CPtr, ccall
+
+# test issue 2125
+
+@packed
+@dataclass
+class inner_struct:
+    inner_field: i32 = 0
+
+
+@packed
+@dataclass
+class outer_struct:
+    inner_s : inner_struct = inner_struct()
+
+
+def check() -> None:
+    outer_struct_instance : outer_struct = outer_struct(inner_struct(5))
+    outer_struct_instance2 : outer_struct = outer_struct_instance
+    inner_struct_instance : inner_struct = outer_struct_instance2.inner_s
+    assert inner_struct_instance.inner_field == 5
+
+
+check()