1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/structs-enums/struct-rec/mutual-struct-recursion.rs b/tests/ui/structs-enums/struct-rec/mutual-struct-recursion.rs
new file mode 100644
index 00000000000..3bfce8b4f96
--- /dev/null
+++ b/tests/ui/structs-enums/struct-rec/mutual-struct-recursion.rs
@@ -0,0 +1,21 @@
+struct A<T> {
+//~^ ERROR recursive types `A` and `B` have infinite size
+    x: T,
+    y: B<T>,
+}
+
+struct B<T> {
+    z: A<T>
+}
+
+struct C<T> {
+//~^ ERROR recursive types `C` and `D` have infinite size
+    x: T,
+    y: Option<Option<D<T>>>,
+}
+
+struct D<T> {
+    z: Option<Option<C<T>>>,
+}
+
+fn main() {}