1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/class/classconstructor.js b/js/src/jit-test/tests/class/classconstructor.js
new file mode 100644
index 0000000000..2d926b48ca
--- /dev/null
+++ b/js/src/jit-test/tests/class/classconstructor.js
@@ -0,0 +1,27 @@
+function customconstructor() {
+    class X {
+        constructor() {}
+        a() {}
+    };
+
+    assertEq(Object.getOwnPropertyDescriptor(X, "prototype").configurable, false);
+    assertEq(Object.getOwnPropertyDescriptor(X.prototype, "constructor").enumerable, false);
+}
+
+function defaultconstructor() {
+    class X {
+        a() {}
+    };
+
+    assertEq(Object.getOwnPropertyDescriptor(X, "prototype").configurable, false);
+    assertEq(Object.getOwnPropertyDescriptor(X.prototype, "constructor").enumerable, false);
+}
+
+function run() {
+    for (var i = 0; i < 100; i++) {
+        customconstructor();
+        defaultconstructor();
+    }
+}
+
+run();