1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/class-06.js b/js/src/jit-test/tests/debug/class-06.js
new file mode 100644
index 0000000000..fc6ebdbaa9
--- /dev/null
+++ b/js/src/jit-test/tests/debug/class-06.js
@@ -0,0 +1,22 @@
+// |jit-test| error: TypeError
+
+let g = newGlobal();
+let dbg = Debugger(g);
+
+let forceException = g.eval(`
+    (class extends class {} {
+        // Calling this will return a primitive immediately.
+        constructor() { return {}; }
+    })
+`);
+
+dbg.onEnterFrame = function(f) {
+    f.onStep = function() {
+        return {
+            // Force the return of an illegal value.
+            return: 1
+        }
+    }
+}
+
+new forceException;