Circular reference test

Author: lpil

test-output/cases/echo_circular_reference/gleam.toml

@@ -0,0 +1,3 @@
+name = "echo_circular_reference"
+version = "1.0.0"
+target = "javascript"

test-output/cases/echo_circular_reference/src/main.gleam

@@ -0,0 +1,9 @@
+pub fn main() {
+  echo circular_reference()
+  Nil
+}
+
+type Thing
+
+@external(javascript, "./main_ffi.mjs", "circular_reference")
+fn circular_reference() -> Thing

test-output/cases/echo_circular_reference/src/main_ffi.mjs

@@ -0,0 +1,5 @@
+export function circular_reference() {
+  const x = [];
+  x.push(x);
+  return x;
+}

test-output/src/tests/echo.rs

@@ -195,3 +195,8 @@ fn echo_tuple() {
 fn echo_non_record_atom_tag() {
     assert_echo!(Target::Erlang, "echo_non_record_atom_tag");
 }
+
+#[test]
+fn echo_circular_reference() {
+    assert_echo!(Target::JavaScript, "echo_circular_reference");
+}