1 files changed, 72 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/array-tolocalestring.js b/deps/v8/test/mjsunit/array-tolocalestring.js
new file mode 100644
index 0000000000..a5f856907a
--- /dev/null
+++ b/deps/v8/test/mjsunit/array-tolocalestring.js
@@ -0,0 +1,72 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(function CycleDetection() {
+  const arr = [
+    {
+      toLocaleString() {
+        return [1, arr];
+      }
+    }
+  ];
+  assertSame('1,', arr.toLocaleString());
+  assertSame('1,', arr.toLocaleString());
+})();
+
+(function ThrowsError(){
+  function TestError() {}
+  const arr = [];
+  const obj = {
+    toLocaleString(){
+      throw new TestError();
+    }
+  };
+  arr[0] = obj;
+  assertThrows(() => arr.toLocaleString(), TestError);
+
+  // Verifies cycle detection still works properly after thrown error.
+  arr[0] = {
+    toLocaleString() {
+      return 1;
+    }
+  };
+  assertSame('1', arr.toLocaleString());
+})();
+
+(function AccessThrowsError(){
+  function TestError() {}
+  const arr = [];
+  const obj = {
+    get toLocaleString(){
+      throw new TestError();
+    }
+  };
+  arr[0] = obj;
+  assertThrows(() => arr.toLocaleString(), TestError);
+
+  // Verifies cycle detection still works properly after thrown error.
+  arr[0] = {
+    toLocaleString() {
+      return 1;
+    }
+  };
+  assertSame('1', arr.toLocaleString());
+})();
+
+(function NotCallable(){
+  const arr = [];
+  const obj = {
+    toLocaleString: 7
+  }
+  arr[0] = obj;
+  assertThrows(() => arr.toLocaleString(), TypeError, '7 is not a function');
+
+  // Verifies cycle detection still works properly after thrown error.
+  arr[0] = {
+    toLocaleString() {
+      return 1;
+    }
+  };
+  assertSame('1', arr.toLocaleString());
+})();