1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1814020.js b/js/src/jit-test/tests/debug/bug1814020.js
new file mode 100644
index 0000000000..7036616347
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1814020.js
@@ -0,0 +1,26 @@
+const dbg = newGlobal({ sameZoneAs: this }).Debugger(this);
+
+async function* inspectingGenerator() {
+    await undefined;
+
+    const frame = dbg.getNewestFrame();
+    const asyncPromise = frame.asyncPromise;
+    assertEq(asyncPromise.getPromiseReactions().length, 0);
+}
+
+async function* emptyGenerator() {}
+
+const gen = inspectingGenerator();
+const inspectingGenPromise = gen.next();
+
+const emptyGen = emptyGenerator();
+// Close generator.
+emptyGen.next();
+
+// Creates a reaction record on the inspectingGenPromise which points to the
+// closed emptyGen generator.
+emptyGen.return(inspectingGenPromise);
+
+// Execute the inspectingGenerator() code after `await`, which gets the
+// promise reactions (potentially including the closed emptyGen generator)
+drainJobQueue();
+\ No newline at end of file