1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/offThreadCompileToStencil-04.js b/js/src/jit-test/tests/basic/offThreadCompileToStencil-04.js
new file mode 100644
index 0000000000..1b10df8174
--- /dev/null
+++ b/js/src/jit-test/tests/basic/offThreadCompileToStencil-04.js
@@ -0,0 +1,21 @@
+// |jit-test| skip-if: helperThreadCount() === 0
+
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+// Ensure off-thread parse works for ergonomic brand checks.
+
+load(libdir + 'asserts.js');
+
+offThreadCompileToStencil(`
+    class A {
+        #x
+        static hx(o) { return #x in o; }
+    };
+
+    throw "Yay"`);
+
+assertThrowsValue(() => {
+    var stencil = finishOffThreadStencil();
+    evalStencil(stencil);
+}, 'Yay');