1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Object-getOwnPrivateProperties.js b/js/src/jit-test/tests/debug/Object-getOwnPrivateProperties.js
new file mode 100644
index 0000000000..5be0d23fc7
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Object-getOwnPrivateProperties.js
@@ -0,0 +1,44 @@
+// private fields
+
+var g = newGlobal({ newCompartment: true });
+var dbg = Debugger();
+var gobj = dbg.addDebuggee(g);
+
+g.eval(`
+class MyClass {
+    constructor() {
+        this.publicProperty = 1;
+        this.publicSymbol = Symbol("public");
+        this[this.publicSymbol] = 2;
+        this.#privateProperty1 = 3;
+        this.#privateProperty2 = 4;
+    }
+    static #privateStatic1
+    static #privateStatic2
+    #privateProperty1
+    #privateProperty2
+    #privateMethod() {}
+    publicMethod(){}
+}
+obj = new MyClass();
+klass = MyClass`);
+
+var privatePropertiesSymbolsDescriptions = gobj
+  .getOwnPropertyDescriptor("obj")
+  .value.getOwnPrivateProperties()
+  .map(sym => sym.description);
+
+assertEq(
+  JSON.stringify(privatePropertiesSymbolsDescriptions),
+  JSON.stringify([`#privateProperty1`, `#privateProperty2`])
+);
+
+var classPrivatePropertiesSymbolsDescriptions = gobj
+  .getOwnPropertyDescriptor("klass")
+  .value.getOwnPrivateProperties()
+  .map(sym => sym.description);
+
+assertEq(
+  JSON.stringify(classPrivatePropertiesSymbolsDescriptions),
+  JSON.stringify([`#privateStatic1`, `#privateStatic2`])
+);