Lazy load chrome.* APIs

chrome/renderer/extensions/event_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/test/base/module_system_test.h"
 
 #include "grit/renderer_resources.h"
 
 namespace extensions {
 namespace {
@@ skipping 44 matching lines @@
         "  var i = attachedFilteredListeners[idToName[id]].indexOf(id);"
         "  attachedFilteredListeners[idToName[id]].splice(i, 1);"
         "};"
 
         "exports.HasFilteredListener = function(name) {"
         "  return attachedFilteredListeners[name].length;"
         "};");
     OverrideNativeHandler("chrome_hidden",
         "var chromeHidden = {};"
         "exports.GetChromeHidden = function() { return chromeHidden; };");
+    OverrideNativeHandler("chrome",
+        "var chrome = {};"
+        "exports.GetChrome = function() { return chrome; };");
     OverrideNativeHandler("sendRequest",
         "exports.sendRequest = function() {};");
     OverrideNativeHandler("apiDefinitions",
         "exports.GetExtensionAPIDefinition = function() {};");
     OverrideNativeHandler("logging",
         "exports.DCHECK = function() {};");
   }
 };
 
 TEST_F(EventUnittest, TestNothing) {
   ExpectNoAssertionsMade();
 }
 
 TEST_F(EventUnittest, AddRemoveTwoListeners) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
       "var assert = requireNative('assert');"
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var eventBindings = requireNative('event_bindings');"
-      "var myEvent = new event.Event('named-event');"
+      "var myEvent = new Event('named-event');"
       "var cb1 = function() {};"
       "var cb2 = function() {};"
       "myEvent.addListener(cb1);"
       "myEvent.addListener(cb2);"
       "myEvent.removeListener(cb1);"
       "assert.AssertTrue(!!eventBindings.attachedListeners['named-event']);"
       "myEvent.removeListener(cb2);"
       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, OnUnloadDetachesAllListeners) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
       "var assert = requireNative('assert');"
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var eventBindings = requireNative('event_bindings');"
       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
-      "var myEvent = new event.Event('named-event');"
+      "var myEvent = new Event('named-event');"
       "var cb1 = function() {};"
       "var cb2 = function() {};"
       "myEvent.addListener(cb1);"
       "myEvent.addListener(cb2);"
       "chromeHidden.dispatchOnUnload();"
       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, OnUnloadDetachesAllListenersEvenDupes) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
       "var assert = requireNative('assert');"
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var eventBindings = requireNative('event_bindings');"
       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
-      "var myEvent = new event.Event('named-event');"
+      "var myEvent = new Event('named-event');"
       "var cb1 = function() {};"
       "myEvent.addListener(cb1);"
       "myEvent.addListener(cb1);"
       "chromeHidden.dispatchOnUnload();"
       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, EventsThatSupportRulesMustHaveAName) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var eventOpts = {supportsRules: true};"
       "var assert = requireNative('assert');"
       "var caught = false;"
       "try {"
-      "  var myEvent = new event.Event(undefined, undefined, eventOpts);"
+      "  var myEvent = new Event(undefined, undefined, eventOpts);"
       "} catch (e) {"
       "  caught = true;"
       "}"
       "assert.AssertTrue(caught);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, NamedEventDispatch) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
       "var assert = requireNative('assert');"
-      "var e = new event.Event('myevent');"
+      "var e = new Event('myevent');"
       "var called = false;"
       "e.addListener(function() { called = true; });"
       "chromeHidden.Event.dispatchEvent('myevent', []);"
       "assert.AssertTrue(called);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, AddListenerWithFiltersThrowsErrorByDefault) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
-      "var e = new event.Event('myevent');"
+      "var e = new Event('myevent');"
       "var filter = [{"
       "  url: {hostSuffix: 'google.com'},"
       "}];"
       "var caught = false;"
       "try {"
       "  e.addListener(function() {}, filter);"
       "} catch (e) {"
       "  caught = true;"
       "}"
       "assert.AssertTrue(caught);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, FilteredEventsAttachment) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
       "var bindings = requireNative('event_bindings');"
       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
-      "var e = new event.Event('myevent', undefined, eventOpts);"
+      "var e = new Event('myevent', undefined, eventOpts);"
       "var cb = function() {};"
       "var filters = {url: [{hostSuffix: 'google.com'}]};"
       "e.addListener(cb, filters);"
       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
       "e.removeListener(cb);"
       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, DetachFilteredEvent) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
       "var bindings = requireNative('event_bindings');"
       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
-      "var e = new event.Event('myevent', undefined, eventOpts);"
+      "var e = new Event('myevent', undefined, eventOpts);"
       "var cb1 = function() {};"
       "var cb2 = function() {};"
       "var filters = {url: [{hostSuffix: 'google.com'}]};"
       "e.addListener(cb1, filters);"
       "e.addListener(cb2, filters);"
       "e.detach_();"
       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, AttachAndRemoveSameFilteredEventListener) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
       "var bindings = requireNative('event_bindings');"
       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
-      "var e = new event.Event('myevent', undefined, eventOpts);"
+      "var e = new Event('myevent', undefined, eventOpts);"
       "var cb = function() {};"
       "var filters = {url: [{hostSuffix: 'google.com'}]};"
       "e.addListener(cb, filters);"
       "e.addListener(cb, filters);"
       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
       "e.removeListener(cb);"
       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
       "e.removeListener(cb);"
       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, AddingFilterWithUrlFieldNotAListThrowsException) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
-      "var e = new event.Event('myevent', undefined, eventOpts);"
+      "var e = new Event('myevent', undefined, eventOpts);"
       "var cb = function() {};"
       "var filters = {url: {hostSuffix: 'google.com'}};"
       "var caught = false;"
       "try {"
       "  e.addListener(cb, filters);"
       "} catch (e) {"
       "  caught = true;"
       "}"
       "assert.AssertTrue(caught);");
   module_system_->Require("test");
 }
 
 TEST_F(EventUnittest, MaxListeners) {
   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
   RegisterModule("test",
-      "var event = require('event');"
+      "require('event');"
+      "var Event = requireNative('chrome').GetChrome().Event;"
       "var assert = requireNative('assert');"
       "var eventOpts = {supportsListeners: true, maxListeners: 1};"
-      "var e = new event.Event('myevent', undefined, eventOpts);"
+      "var e = new Event('myevent', undefined, eventOpts);"
       "var cb = function() {};"
       "var caught = false;"
       "try {"
       "  e.addListener(cb);"
       "} catch (e) {"
       "  caught = true;"
       "}"
       "assert.AssertTrue(!caught);"
       "try {"
       "  e.addListener(cb);"
       "} catch (e) {"
       "  caught = true;"
       "}"
       "assert.AssertTrue(caught);");
   module_system_->Require("test");
 }
 
 }  // namespace
 }  // namespace extensions