1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/gen-method-param-dflt-yield.js b/js/src/tests/test262/language/statements/class/gen-method-param-dflt-yield.js
new file mode 100644
index 0000000000..0cb2a793e5
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/gen-method-param-dflt-yield.js
@@ -0,0 +1,28 @@
+// |reftest| error:SyntaxError
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-generator-function-definitions
+es6id: 14.4
+description: >
+  YieldExpression cannot be used within the FormalParameters of a generator
+  function
+info: |
+  GeneratorMethod[Yield]:
+
+     * PropertyName[?Yield] ( StrictFormalParameters[Yield] ) { GeneratorBody }
+
+  YieldExpression cannot be used within the FormalParameters of a generator
+  function because any expressions that are part of FormalParameters are
+  evaluated before the resulting generator object is in a resumable state.
+features: [generators, default-parameters]
+negative:
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+class C {
+  *g(x = yield) {}
+}