Index: test/mjsunit/es6/object-tostring.js |
diff --git a/test/mjsunit/es6/object-tostring.js b/test/mjsunit/es6/object-tostring.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..62808048a54984f4810d22e749dff4890d8b4d3e |
--- /dev/null |
+++ b/test/mjsunit/es6/object-tostring.js |
@@ -0,0 +1,128 @@ |
+// Copyright 2014 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. |
+ |
+// Flags: --harmony-tostring |
+ |
+var global = this; |
+ |
+// TODO(dslomov, caitp): remove the following simple tests (dupe from |
+// class-of-builtins) when shipping. |
Dmitry Lomov (no reviews)
2014/10/18 21:24:19
I wouldn't even add this TODO here, extra tests ar
|
+var funs = { |
+ Object: [ Object ], |
+ Function: [ Function ], |
+ Array: [ Array ], |
+ String: [ String ], |
+ Boolean: [ Boolean ], |
+ Number: [ Number ], |
+ Date: [ Date ], |
+ RegExp: [ RegExp ], |
+ Error: [ Error, TypeError, RangeError, SyntaxError, ReferenceError, EvalError, URIError ] |
Dmitry Lomov (no reviews)
2014/10/18 21:24:19
Nit: 80 line string
Dmitry Lomov (no reviews)
2014/10/18 21:27:14
s/line/column/
|
+} |
+for (f in funs) { |
+ for (i in funs[f]) { |
+ assertEquals("[object " + f + "]", |
+ Object.prototype.toString.call(new funs[f][i]), |
+ funs[f][i]); |
+ assertEquals("[object Function]", |
+ Object.prototype.toString.call(funs[f][i]), |
+ funs[f][i]); |
+ } |
+} |
+ |
+function testToStringTag(className) { |
+ // Using builtin toStringTags |
+ var obj = {}; |
+ obj[Symbol.toStringTag] = className; |
+ assertEquals("[object ~" + className + "]", |
+ Object.prototype.toString.call(obj)); |
+ |
+ // Getter throws |
+ obj = {}; |
+ Object.defineProperty(obj, Symbol.toStringTag, { |
+ get: function() { throw className; } |
+ }); |
+ assertThrows(function() { |
+ Object.prototype.toString.call(obj); |
+ }, className); |
+ |
+ // Getter does not throw |
+ obj = {}; |
+ Object.defineProperty(obj, Symbol.toStringTag, { |
+ get: function() { return className; } |
+ }); |
+ assertEquals("[object ~" + className + "]", |
+ Object.prototype.toString.call(obj)); |
+ |
+ // Custom, non-builtin toStringTags |
+ obj = {}; |
+ obj[Symbol.toStringTag] = "X" + className; |
+ assertEquals("[object X" + className + "]", |
+ Object.prototype.toString.call(obj)); |
+ |
+ // With getter |
+ obj = {}; |
+ Object.defineProperty(obj, Symbol.toStringTag, { |
+ get: function() { return "X" + className; } |
+ }); |
+ assertEquals("[object X" + className + "]", |
+ Object.prototype.toString.call(obj)); |
+ |
+ // Undefined toStringTag should return [object className] |
+ var obj = className === "Arguments" ? |
Dmitry Lomov (no reviews)
2014/10/18 21:24:19
Formatting is off
|
+ (function() { return arguments; })() : |
+ new global[className]; |
+ obj[Symbol.toStringTag] = undefined; |
+ assertEquals("[object " + className + "]", |
+ Object.prototype.toString.call(obj)); |
+ |
+ // With getter |
+ var obj = className === "Arguments" ? |
Dmitry Lomov (no reviews)
2014/10/18 21:24:19
Formatting is off
|
+ (function() { return arguments; })() : |
+ new global[className]; |
+ Object.defineProperty(obj, Symbol.toStringTag, { |
+ get: function() { return undefined; } |
+ }); |
+ assertEquals("[object " + className + "]", |
+ Object.prototype.toString.call(obj)); |
+} |
+ |
+[ |
+ "Arguments", |
+ "Array", |
+ "Boolean", |
+ "Date", |
+ "Error", |
+ "Function", |
+ "Number", |
+ "RegExp", |
+ "String" |
+].forEach(testToStringTag); |
+ |
+function testToStringTagNonString(value) { |
+ var obj = {}; |
+ obj[Symbol.toStringTag] = value; |
+ assertEquals("[object ???]", Object.prototype.toString.call(obj)); |
+ |
+ // With getter |
+ obj = {}; |
+ Object.defineProperty(obj, Symbol.toStringTag, { |
+ get: function() { return value; } |
+ }); |
+ assertEquals("[object ???]", Object.prototype.toString.call(obj)); |
+} |
+ |
+[ |
+ null, |
+ function() {}, |
+ [], |
+ {}, |
+ /regexp/, |
+ 42, |
+ Symbol("sym"), |
+ new Date(), |
+ (function() { return arguments; })(), |
+ true, |
+ new Error("oops"), |
+ new String("str") |
+].forEach(testToStringTagNonString); |
Dmitry Lomov (no reviews)
2014/10/18 21:24:19
Also add a test that check properties of Object.pr
|