| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| /* TODO(chromium:1050549) |
| * once that bug is complete we can lose this test |
| * as DevTools will no longer touch built-in prototypes. |
| */ |
| |
| |
| (async function() { |
| TestRunner.addResult( |
| `Tests that opening inspector front-end doesn't change methods defined by the inspected application.\n`); |
| |
| |
| await TestRunner.loadHTML(` |
| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <div id="output"></div> |
| `); |
| |
| await TestRunner.evaluateInPagePromise(` |
| function output(message) { |
| if (!self._output) |
| self._output = []; |
| self._output.push(message); |
| } |
| |
| function myImpl() { |
| return "my value"; |
| } |
| |
| // Provide some custom methods. |
| Object.type = myImpl; |
| Object.hasProperties = myImpl; |
| Object.describe = myImpl; |
| Object.className = myImpl; |
| String.prototype.testStringProtoFunc = myImpl; |
| var originalJSONStringify = JSON.stringify; |
| JSON.stringify = myImpl; |
| |
| function dumpValues() |
| { |
| // Check that the methods haven't changed. |
| output("myImpl() => " + myImpl()); |
| output("Object.type === myImpl => " + (Object.type === myImpl)); |
| output("Object.hasProperties === myImpl => " + (Object.hasProperties === myImpl)); |
| output("Object.describe === myImpl => " + (Object.describe === myImpl)); |
| output("Object.className === myImpl => " + (Object.className === myImpl)); |
| output("String.prototype.testStringProtoFunc === myImpl => " + (String.prototype.testStringProtoFunc === myImpl)); |
| output("JSON.stringify === myImpl => " + (JSON.stringify === myImpl)); |
| } |
| `); |
| |
| |
| async function callback() { |
| const output = await TestRunner.evaluateInPageAsync('originalJSONStringify(self._output)'); |
| TestRunner.addResults(JSON.parse(output)); |
| TestRunner.completeTest(); |
| } |
| |
| TestRunner.evaluateInPage('dumpValues()', callback); |
| })(); |
