chrome/renderer/extensions/json_js_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/test/base/module_system_test.h"
   6 #include "grit/renderer_resources.h"
   7
   8 namespace extensions {
   9 namespace {
  10
  11 // Tests chrome/renderer/resources/json.js.
  12 class JsonJsTest : public ModuleSystemTest {
  13   virtual void SetUp() OVERRIDE {
  14     ModuleSystemTest::SetUp();
  15     RegisterModule("json", IDR_JSON_JS);
  16   }
  17
  18  protected:
  19   std::string requires() {
  20     return
  21       "var assert = requireNative('assert');\n"
  22       "var json = require('json');\n";
  23   }
  24
  25   std::string test_body() {
  26     return
  27       "var str = '{\"a\":1,\"b\":true,\"c\":[\"hi\"]}';\n"
  28       "var obj = json.parse(str);\n"
  29       "assert.AssertTrue(json.stringify(obj) === str);\n"
  30       "assert.AssertTrue(obj.a === 1);\n"
  31       "assert.AssertTrue(obj.b === true);\n"
  32       "assert.AssertTrue(obj.c.length === 1);\n"
  33       "assert.AssertTrue(obj.c[0] === 'hi');\n";
  34   }
  35 };
  36
  37 TEST_F(JsonJsTest, NoOverrides) {
  38   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
  39   RegisterModule("test", requires() + test_body());
  40   module_system_->Require("test");
  41 }
  42
  43 TEST_F(JsonJsTest, EverythingOverridden) {
  44   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
  45   std::string test =
  46     requires() +
  47     "function fakeToJSON() { throw '42'; }\n"
  48     "Object.prototype.toJSON = fakeToJSON;\n"
  49     "Array.prototype.toJSON = fakeToJSON;\n"
  50     "Number.prototype.toJSON = fakeToJSON;\n"
  51     "Boolean.prototype.toJSON = fakeToJSON;\n"
  52     "String.prototype.toJSON = fakeToJSON;\n" +
  53     test_body() +
  54     "assert.AssertTrue(Object.prototype.toJSON == fakeToJSON);\n"
  55     "assert.AssertTrue(Array.prototype.toJSON == fakeToJSON);\n"
  56     "assert.AssertTrue(Number.prototype.toJSON == fakeToJSON);\n"
  57     "assert.AssertTrue(Boolean.prototype.toJSON == fakeToJSON);\n"
  58     "assert.AssertTrue(String.prototype.toJSON == fakeToJSON);\n";
  59   RegisterModule("test", test);
  60   module_system_->Require("test");
  61 }
  62
  63 }  // namespace
  64 }  // namespace extensions