From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 js/src/tests/ecma_6/Symbol/well-known.js | 41 ++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 js/src/tests/ecma_6/Symbol/well-known.js

(limited to 'js/src/tests/ecma_6/Symbol/well-known.js')

diff --git a/js/src/tests/ecma_6/Symbol/well-known.js b/js/src/tests/ecma_6/Symbol/well-known.js
new file mode 100644
index 000000000..8c5de1279
--- /dev/null
+++ b/js/src/tests/ecma_6/Symbol/well-known.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+var names = [
+    "isConcatSpreadable",
+    "iterator",
+    "match",
+    "replace",
+    "search",
+    "species",
+    "hasInstance",
+    "split",
+    "toPrimitive",
+    "unscopables"
+];
+
+for (var name of names) {
+    // Well-known symbols exist.
+    assertEq(typeof Symbol[name], "symbol");
+
+    // They are never in the registry.
+    assertEq(Symbol[name] !== Symbol.for("Symbol." + name), true);
+
+    // They are shared across realms.
+    if (typeof Realm === 'function')
+        throw new Error("please update this test to use Realms");
+    if (typeof newGlobal === 'function') {
+        var g = newGlobal();
+        assertEq(Symbol[name], g.Symbol[name]);
+    }
+
+    // Descriptor is all false.
+    var desc = Object.getOwnPropertyDescriptor(Symbol, name);
+    assertEq(typeof desc.value, "symbol");
+    assertEq(desc.writable, false);
+    assertEq(desc.enumerable, false);
+    assertEq(desc.configurable, false);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);
-- 
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