1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/wrapped-in-sc-private-names.js b/js/src/tests/test262/language/statements/class/elements/wrapped-in-sc-private-names.js
new file mode 100644
index 0000000000..cd5fdb0d9f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/wrapped-in-sc-private-names.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/private-names.case
+// - src/class-elements/productions/cls-decl-wrapped-in-sc.template
+/*---
+description: private names (fields definition wrapped in semicolons)
+esid: prod-FieldDefinition
+features: [class-fields-private, class, class-fields-public]
+flags: [generated]
+info: |
+    ClassElement :
+      ...
+      FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+class C {
+  ;;;;
+  ;;;;;;#x; #y;;;;;;;
+  ;;;;
+  x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#x"), "test 1");
+assert(!Object.prototype.hasOwnProperty.call(C, "#x"), "test 2");
+assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 3");
+
+assert(!Object.prototype.hasOwnProperty.call(C.prototype, "#y"), "test 4");
+assert(!Object.prototype.hasOwnProperty.call(C, "#y"), "test 5");
+assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 6");
+
+// Test if private fields can be sucessfully accessed and set to value
+assert.sameValue(c.x(), 42, "test 7");
+assert.sameValue(c.y(), 43, "test 8");
+
+// Test the private fields do not appear as properties before after set to value
+assert(!Object.prototype.hasOwnProperty.call(c, "#x"), "test 9");
+assert(!Object.prototype.hasOwnProperty.call(c, "#y"), "test 10");
+
+reportCompare(0, 0);