1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/non262/Tuple/prototype/isTuple/isTuple.js b/js/src/tests/non262/Tuple/prototype/isTuple/isTuple.js
new file mode 100644
index 0000000000..714c9cab42
--- /dev/null
+++ b/js/src/tests/non262/Tuple/prototype/isTuple/isTuple.js
@@ -0,0 +1,47 @@
+// |reftest| skip-if(!this.hasOwnProperty("Tuple"))
+var f = Tuple.isTuple;
+
+assertEq(typeof f, "function");
+assertEq(f.length, 1);
+assertEq(f(#[]), true);
+assertEq(f(#[1]), true);
+assertEq(f(#[1,2,3]), true);
+assertEq(f(Object(#[])), true);
+assertEq(f(Object(#[1])), true);
+assertEq(f(Object(#[1,2,3])), true);
+
+for (thing of [42, new Number(-42), undefined, true, false, "abc" , new String("a\nb\\!"), {}, [], [1,2,3], new Uint8Array(1,2,3), null, new RegExp(), JSON, new SyntaxError(), function() {}, Math, new Date()]) {
+    assertEq(f(thing), false);
+}
+assertEq(f(Tuple.prototype), false);
+var arg;
+(function fun() { arg = arguments; }(1,2,3));
+assertEq(f(arg), false);
+assertEq(f(this), false);
+
+var proto = [];
+var Con = function() {};
+Con.prototype = proto;
+
+var child = new Con();
+
+assertEq(f(child), false);
+
+var proto = Tuple.prototype;
+var Con = function() {};
+Con.prototype = proto;
+
+var child = new Con();
+
+assertEq(f(child), false);
+
+assertEq(f({
+  0: 12,
+  1: 9,
+  length: 2
+}), false);
+
+
+reportCompare(0, 0);
+
+