1 files changed, 122 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/multiple-definitions-static-private-fields.js b/js/src/tests/test262/language/statements/class/elements/multiple-definitions-static-private-fields.js
new file mode 100644
index 0000000000..2d79468c3c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/multiple-definitions-static-private-fields.js
@@ -0,0 +1,122 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/static-private-fields.case
+// - src/class-elements/productions/cls-decl-multiple-definitions.template
+/*---
+description: static private fields (multiple fields definitions)
+esid: prod-FieldDefinition
+features: [class-static-fields-private, class, class-fields-public]
+flags: [generated]
+includes: [propertyHelper.js]
+info: |
+    ClassElement :
+      ...
+      static FieldDefinition ;
+
+    FieldDefinition :
+      ClassElementName Initializer_opt
+
+    ClassElementName :
+      PrivateName
+
+    PrivateName :
+      # IdentifierName
+
+---*/
+
+
+class C {
+  foo = "foobar";
+  m() { return 42 }
+  static #x; static #y
+  m2() { return 39 }
+  bar = "barbaz";
+  static x() {
+    this.#x = 42;
+    return this.#x;
+  }
+  static y() {
+    this.#y = 43;
+    return this.#y;
+  }
+}
+
+var c = new C();
+
+assert.sameValue(c.m(), 42);
+assert(
+  !Object.prototype.hasOwnProperty.call(c, "m"),
+  "m doesn't appear as an own property on the C instance"
+);
+assert.sameValue(c.m, C.prototype.m);
+
+verifyProperty(C.prototype, "m", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.m2(), 39);
+assert(!
+  Object.prototype.hasOwnProperty.call(c, "m2"),
+  "m2 doesn't appear as an own property on the C instance"
+);
+assert.sameValue(c.m2, C.prototype.m2);
+
+verifyProperty(C.prototype, "m2", {
+  enumerable: false,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.foo, "foobar");
+assert(
+  !Object.prototype.hasOwnProperty.call(C, "foo"),
+  "foo doesn't appear as an own property on the C constructor"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(C.prototype, "foo"),
+  "foo doesn't appear as an own property on the C prototype"
+);
+
+verifyProperty(c, "foo", {
+  value: "foobar",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+assert.sameValue(c.bar, "barbaz");
+assert(
+  !Object.prototype.hasOwnProperty.call(C, "bar"),
+  "bar doesn't appear as an own property on the C constructor"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(C.prototype, "bar"),
+  "bar doesn't appear as an own property on the C prototype"
+);
+
+verifyProperty(c, "bar", {
+  value: "barbaz",
+  enumerable: true,
+  configurable: true,
+  writable: true,
+});
+
+// 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);