1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/compound-assignment/left-hand-side-private-reference-method-exp.js b/js/src/tests/test262/language/expressions/compound-assignment/left-hand-side-private-reference-method-exp.js
new file mode 100644
index 0000000000..7c98267457
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/compound-assignment/left-hand-side-private-reference-method-exp.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/compound-assignment-private/exp.case
+// - src/compound-assignment-private/default/method.template
+/*---
+description: Compound exponentiation assignment with target being a private reference (to a private method)
+esid: sec-assignment-operators-runtime-semantics-evaluation
+features: [exponentiation, class-fields-private]
+flags: [generated]
+info: |
+    sec-assignment-operators-runtime-semantics-evaluation
+    AssignmentExpression : LeftHandSideExpression AssignmentOperator AssignmentExpression
+      1. Let _lref_ be the result of evaluating |LeftHandSideExpression|.
+      2. Let _lval_ be ? GetValue(_lref_).
+      ...
+      7. Let _r_ be ApplyStringOrNumericBinaryOperator(_lval_, _opText_, _rval_).
+      8. Perform ? PutValue(_lref_, _r_).
+      9. Return _r_.
+
+    sec-property-accessors-runtime-semantics-evaluation
+    MemberExpression : MemberExpression `.` PrivateIdentifier
+
+      1. Let _baseReference_ be the result of evaluating |MemberExpression|.
+      2. Let _baseValue_ be ? GetValue(_baseReference_).
+      3. Let _fieldNameString_ be the StringValue of |PrivateIdentifier|.
+      4. Return ! MakePrivateReference(_baseValue_, _fieldNameString_).
+
+    PutValue (V, W)
+      ...
+      5.b. If IsPrivateReference(_V_) is *true*, then
+        i. Return ? PrivateSet(_baseObj_, _V_.[[ReferencedName]], _W_).
+
+    PrivateSet (O, P, value)
+      ...
+      4. Else if _entry_.[[Kind]] is ~method~, then
+        a. Throw a *TypeError* exception.
+
+---*/
+
+
+class C {
+  #privateMethod() {}
+  compoundAssignment() {
+    return this.#privateMethod **= 1;
+  }
+}
+
+const o = new C();
+assert.throws(TypeError, () => o.compoundAssignment(), "PutValue throws when storing the result in a method private reference");
+
+reportCompare(0, 0);