1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/saved-stacks/async.js b/js/src/jit-test/tests/saved-stacks/async.js
new file mode 100644
index 0000000000..6ab4546a7c
--- /dev/null
+++ b/js/src/jit-test/tests/saved-stacks/async.js
@@ -0,0 +1,24 @@
+// Test calling a function using a previously captured stack as an async stack.
+
+function getAsyncStack() {
+  return saveStack();
+}
+
+// asyncCause may contain non-ASCII characters.
+let testAsyncCause = "Tes" + String.fromCharCode(355) + "String";
+
+callFunctionWithAsyncStack(function asyncCallback() {
+  let stack = saveStack();
+
+  assertEq(stack.functionDisplayName, "asyncCallback");
+  assertEq(stack.parent, null);
+  assertEq(stack.asyncCause, null);
+
+  assertEq(stack.asyncParent.functionDisplayName, "getAsyncStack");
+  assertEq(stack.asyncParent.asyncCause, testAsyncCause);
+  assertEq(stack.asyncParent.asyncParent, null);
+
+  assertEq(stack.asyncParent.parent.asyncCause, null);
+  assertEq(stack.asyncParent.parent.asyncParent, null);
+  assertEq(stack.asyncParent.parent.parent, null);
+}, getAsyncStack(), testAsyncCause);