diff options
Diffstat (limited to 'deps/v8/tools/foozzie/v8_mock.js')
-rw-r--r-- | deps/v8/tools/foozzie/v8_mock.js | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/deps/v8/tools/foozzie/v8_mock.js b/deps/v8/tools/foozzie/v8_mock.js new file mode 100644 index 0000000000..82a5e72ccd --- /dev/null +++ b/deps/v8/tools/foozzie/v8_mock.js @@ -0,0 +1,76 @@ +// Copyright 2016 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. + +// This is intended for permanent JS behavior changes for mocking out +// non-deterministic behavior. For temporary suppressions, please refer to +// v8_suppressions.js. +// This file is loaded before each correctness test cases and won't get +// minimized. + + +// This will be overridden in the test cases. The override can be minimized. +var __PrettyPrint = function __PrettyPrint(msg) { print(msg); }; + + +// All calls to f.arguments are replaced by f.mock_arguments by an external +// script. +Object.prototype.mock_arguments = ['x', 'y'] + + +// Mock Math.random. +var __magic_index_for_mocked_random = 0 +Math.random = function(){ + __magic_index_for_mocked_random = (__magic_index_for_mocked_random + 1) % 10 + return __magic_index_for_mocked_random / 10.0; +} + + +// Mock Date. +var __magic_index_for_mocked_date = 0 +var __magic_mocked_date = 1477662728696 +__magic_mocked_date_now = function(){ + __magic_index_for_mocked_date = (__magic_index_for_mocked_date + 1) % 10 + __magic_mocked_date = __magic_mocked_date + __magic_index_for_mocked_date + 1 + return __magic_mocked_date +} + +var __original_date = Date; +__magic_mock_date_handler = { + construct: function(target, args, newTarget) { + if (args.length > 0) { + return new (Function.prototype.bind.apply(__original_date, [null].concat(args))); + } else { + return new __original_date(__magic_mocked_date_now()); + } + }, + get: function(target, property, receiver) { + if (property == "now") { + return __magic_mocked_date_now; + } + }, +} + +Date = new Proxy(Date, __magic_mock_date_handler); + +// Mock Worker. +var __magic_index_for_mocked_worker = 0 +// TODO(machenbach): Randomize this for each test case, but keep stable during +// comparison. Also data and random above. +var __magic_mocked_worker_messages = [ + undefined, 0, -1, "", "foo", 42, [], {}, [0], {"x": 0} +] +Worker = function(code){ + try { + __PrettyPrint(eval(code)); + } catch(e) { + __PrettyPrint(e); + } + this.getMessage = function(){ + __magic_index_for_mocked_worker = (__magic_index_for_mocked_worker + 1) % 10 + return __magic_mocked_worker_messages[__magic_index_for_mocked_worker]; + } + this.postMessage = function(msg){ + __PrettyPrint(msg); + } +} |