1 files changed, 62 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp b/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp
new file mode 100644
index 0000000000..69a53e6738
--- /dev/null
+++ b/js/src/jsapi-tests/testFreshGlobalEvalRedefinition.cpp
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Utf8.h"  // mozilla::Utf8Unit
+
+#include "js/CompilationAndEvaluation.h"  // JS::Evaluate
+#include "js/SourceText.h"                // JS::Source{Ownership,Text}
+#include "jsapi-tests/tests.h"
+#include "util/Text.h"
+
+static bool GlobalResolve(JSContext* cx, JS::HandleObject obj, JS::HandleId id,
+                          bool* resolvedp) {
+  return JS_ResolveStandardClass(cx, obj, id, resolvedp);
+}
+
+BEGIN_TEST(testRedefineGlobalEval) {
+  static const JSClassOps clsOps = {
+      nullptr,                         // addProperty
+      nullptr,                         // delProperty
+      nullptr,                         // enumerate
+      JS_NewEnumerateStandardClasses,  // newEnumerate
+      GlobalResolve,                   // resolve
+      nullptr,                         // mayResolve
+      nullptr,                         // finalize
+      nullptr,                         // call
+      nullptr,                         // hasInstance
+      nullptr,                         // construct
+      JS_GlobalObjectTraceHook,        // trace
+  };
+
+  static const JSClass cls = {"global", JSCLASS_GLOBAL_FLAGS, &clsOps};
+
+  /* Create the global object. */
+  JS::RealmOptions options;
+  JS::Rooted<JSObject*> g(
+      cx,
+      JS_NewGlobalObject(cx, &cls, nullptr, JS::FireOnNewGlobalHook, options));
+  if (!g) {
+    return false;
+  }
+
+  JSAutoRealm ar(cx, g);
+  JS::Rooted<JS::Value> v(cx);
+  CHECK(JS_GetProperty(cx, g, "Object", &v));
+
+  static const char data[] =
+      "Object.defineProperty(this, 'eval', { configurable: false });";
+
+  JS::CompileOptions opts(cx);
+
+  JS::SourceText<mozilla::Utf8Unit> srcBuf;
+  CHECK(srcBuf.init(cx, data, js_strlen(data), JS::SourceOwnership::Borrowed));
+
+  CHECK(JS::Evaluate(cx, opts.setFileAndLine(__FILE__, __LINE__), srcBuf, &v));
+
+  return true;
+}
+END_TEST(testRedefineGlobalEval)