test262/test/annexB/built-ins/unescape/to-string-observe.js

53 lines
828 B
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-unescape-string
es6id: B.2.1.2
description: Observable operations from string coercion
info: |
1. Let string be ? ToString(string).
---*/
var log, obj;
log = '';
obj = {
toString: function() {
log += 'toString';
},
valueOf: function() {
log += 'valueOf';
}
};
unescape(obj);
assert.sameValue(log, 'toString');
log = '';
obj = {
toString: null,
valueOf: function() {
log += 'valueOf';
}
};
unescape(obj);
assert.sameValue(log, 'valueOf');
log = '';
obj = {
toString: function() {
log += 'toString';
return {};
},
valueOf: function() {
log += 'valueOf';
}
};
unescape(obj);
assert.sameValue(log, 'toStringvalueOf');