1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/class-01.js b/js/src/jit-test/tests/debug/class-01.js
new file mode 100644
index 0000000000..66f390bd4e
--- /dev/null
+++ b/js/src/jit-test/tests/debug/class-01.js
@@ -0,0 +1,20 @@
+// |jit-test| error: TypeError
+
+let g = newGlobal();
+let dbg = Debugger(g);
+
+let forceException = g.eval(`
+    (class extends class {} {
+        // Calling this will throw for using |this| uninitialized.
+        constructor() { }
+    })
+`);
+
+dbg.onExceptionUnwind = function() {
+    return {
+        // Force the return of an illegal value.
+        return: 1
+    }
+}
+
+new forceException;