1 files changed, 13 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/derivedConstructorTDZReturnUndefined.js b/js/src/tests/non262/class/derivedConstructorTDZReturnUndefined.js
new file mode 100644
index 0000000000..21b8a3a05c
--- /dev/null
+++ b/js/src/tests/non262/class/derivedConstructorTDZReturnUndefined.js
@@ -0,0 +1,13 @@
+class foo extends null {
+    constructor() {
+        // Explicit returns of undefined should act the same as falling off the
+        // end of the function. That is to say, they should throw.
+        return undefined;
+    }
+}
+
+for (let i = 0; i < 1100; i++)
+    assertThrownErrorContains(() => new foo(), "this");
+
+if (typeof reportCompare === 'function')
+    reportCompare(0,0,"OK");