chrome/renderer/extensions/event_unittest.cc

   1 // Copyright (c) 2012 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
   7 #include "grit/renderer_resources.h"
   8
   9 namespace extensions {
  10 namespace {
  11
  12 class EventUnittest : public ModuleSystemTest {
  13   virtual void SetUp() OVERRIDE {
  14     ModuleSystemTest::SetUp();
  15     module_system_->RunString("chrome = {};", "setup-chrome");
  16
  17     RegisterModule("event", IDR_EVENT_BINDINGS_JS);
  18     RegisterModule("schemaUtils", IDR_SCHEMA_UTILS_JS);
  19     RegisterModule("utils", IDR_UTILS_JS);
  20     RegisterModule("json_schema", IDR_JSON_SCHEMA_JS);
  21
  22     // Mock out the native handler for event_bindings. These mocks will fail if
  23     // any invariants maintained by the real event_bindings are broken.
  24     OverrideNativeHandler("event_bindings",
  25         "var assert = requireNative('assert');"
  26         "var attachedListeners = exports.attachedListeners = {};"
  27         "var attachedFilteredListeners = "
  28         "    exports.attachedFilteredListeners = {};"
  29         "var nextId = 0;"
  30         "var idToName = {};"
  31
  32         "exports.AttachEvent = function(eventName) {"
  33         "  assert.AssertFalse(!!attachedListeners[eventName]);"
  34         "  attachedListeners[eventName] = 1;"
  35         "};"
  36
  37         "exports.DetachEvent = function(eventName) {"
  38         "  assert.AssertTrue(!!attachedListeners[eventName]);"
  39         "  delete attachedListeners[eventName];"
  40         "};"
  41
  42         "exports.IsEventAttached = function(eventName) {"
  43         "  return !!attachedListeners[eventName];"
  44         "};"
  45
  46         "exports.AttachFilteredEvent = function(name, filters) {"
  47         "  var id = nextId++;"
  48         "  idToName[id] = name;"
  49         "  attachedFilteredListeners[name] ="
  50         "    attachedFilteredListeners[name] || [];"
  51         "  attachedFilteredListeners[name][id] = filters;"
  52         "  return id;"
  53         "};"
  54
  55         "exports.DetachFilteredEvent = function(id, manual) {"
  56         "  var i = attachedFilteredListeners[idToName[id]].indexOf(id);"
  57         "  attachedFilteredListeners[idToName[id]].splice(i, 1);"
  58         "};"
  59
  60         "exports.HasFilteredListener = function(name) {"
  61         "  return attachedFilteredListeners[name].length;"
  62         "};");
  63     OverrideNativeHandler("chrome_hidden",
  64         "var chromeHidden = {};"
  65         "exports.GetChromeHidden = function() { return chromeHidden; };");
  66     OverrideNativeHandler("chrome",
  67         "var chrome = {};"
  68         "exports.GetChrome = function() { return chrome; };");
  69     OverrideNativeHandler("sendRequest",
  70         "exports.sendRequest = function() {};");
  71     OverrideNativeHandler("apiDefinitions",
  72         "exports.GetExtensionAPIDefinition = function() {};");
  73     OverrideNativeHandler("logging",
  74         "exports.DCHECK = function() {};");
  75     OverrideNativeHandler("schema_registry",
  76         "exports.GetSchema = function() {};");
  77   }
  78 };
  79
  80 TEST_F(EventUnittest, TestNothing) {
  81   ExpectNoAssertionsMade();
  82 }
  83
  84 TEST_F(EventUnittest, AddRemoveTwoListeners) {
  85   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
  86   RegisterModule("test",
  87       "var assert = requireNative('assert');"
  88       "require('event');"
  89       "var Event = requireNative('chrome').GetChrome().Event;"
  90       "var eventBindings = requireNative('event_bindings');"
  91       "var myEvent = new Event('named-event');"
  92       "var cb1 = function() {};"
  93       "var cb2 = function() {};"
  94       "myEvent.addListener(cb1);"
  95       "myEvent.addListener(cb2);"
  96       "myEvent.removeListener(cb1);"
  97       "assert.AssertTrue(!!eventBindings.attachedListeners['named-event']);"
  98       "myEvent.removeListener(cb2);"
  99       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
 100   module_system_->Require("test");
 101 }
 102
 103 TEST_F(EventUnittest, OnUnloadDetachesAllListeners) {
 104   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 105   RegisterModule("test",
 106       "var assert = requireNative('assert');"
 107       "require('event');"
 108       "var Event = requireNative('chrome').GetChrome().Event;"
 109       "var eventBindings = requireNative('event_bindings');"
 110       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
 111       "var myEvent = new Event('named-event');"
 112       "var cb1 = function() {};"
 113       "var cb2 = function() {};"
 114       "myEvent.addListener(cb1);"
 115       "myEvent.addListener(cb2);"
 116       "chromeHidden.dispatchOnUnload();"
 117       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
 118   module_system_->Require("test");
 119 }
 120
 121 TEST_F(EventUnittest, OnUnloadDetachesAllListenersEvenDupes) {
 122   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 123   RegisterModule("test",
 124       "var assert = requireNative('assert');"
 125       "require('event');"
 126       "var Event = requireNative('chrome').GetChrome().Event;"
 127       "var eventBindings = requireNative('event_bindings');"
 128       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
 129       "var myEvent = new Event('named-event');"
 130       "var cb1 = function() {};"
 131       "myEvent.addListener(cb1);"
 132       "myEvent.addListener(cb1);"
 133       "chromeHidden.dispatchOnUnload();"
 134       "assert.AssertFalse(!!eventBindings.attachedListeners['named-event']);");
 135   module_system_->Require("test");
 136 }
 137
 138 TEST_F(EventUnittest, EventsThatSupportRulesMustHaveAName) {
 139   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 140   RegisterModule("test",
 141       "require('event');"
 142       "var Event = requireNative('chrome').GetChrome().Event;"
 143       "var eventOpts = {supportsRules: true};"
 144       "var assert = requireNative('assert');"
 145       "var caught = false;"
 146       "try {"
 147       "  var myEvent = new Event(undefined, undefined, eventOpts);"
 148       "} catch (e) {"
 149       "  caught = true;"
 150       "}"
 151       "assert.AssertTrue(caught);");
 152   module_system_->Require("test");
 153 }
 154
 155 TEST_F(EventUnittest, NamedEventDispatch) {
 156   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 157   RegisterModule("test",
 158       "require('event');"
 159       "var Event = requireNative('chrome').GetChrome().Event;"
 160       "var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();"
 161       "var assert = requireNative('assert');"
 162       "var e = new Event('myevent');"
 163       "var called = false;"
 164       "e.addListener(function() { called = true; });"
 165       "chromeHidden.Event.dispatchEvent('myevent', []);"
 166       "assert.AssertTrue(called);");
 167   module_system_->Require("test");
 168 }
 169
 170 TEST_F(EventUnittest, AddListenerWithFiltersThrowsErrorByDefault) {
 171   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 172   RegisterModule("test",
 173       "require('event');"
 174       "var Event = requireNative('chrome').GetChrome().Event;"
 175       "var assert = requireNative('assert');"
 176       "var e = new Event('myevent');"
 177       "var filter = [{"
 178       "  url: {hostSuffix: 'google.com'},"
 179       "}];"
 180       "var caught = false;"
 181       "try {"
 182       "  e.addListener(function() {}, filter);"
 183       "} catch (e) {"
 184       "  caught = true;"
 185       "}"
 186       "assert.AssertTrue(caught);");
 187   module_system_->Require("test");
 188 }
 189
 190 TEST_F(EventUnittest, FilteredEventsAttachment) {
 191   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 192   RegisterModule("test",
 193       "require('event');"
 194       "var Event = requireNative('chrome').GetChrome().Event;"
 195       "var assert = requireNative('assert');"
 196       "var bindings = requireNative('event_bindings');"
 197       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
 198       "var e = new Event('myevent', undefined, eventOpts);"
 199       "var cb = function() {};"
 200       "var filters = {url: [{hostSuffix: 'google.com'}]};"
 201       "e.addListener(cb, filters);"
 202       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
 203       "e.removeListener(cb);"
 204       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
 205   module_system_->Require("test");
 206 }
 207
 208 TEST_F(EventUnittest, DetachFilteredEvent) {
 209   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 210   RegisterModule("test",
 211       "require('event');"
 212       "var Event = requireNative('chrome').GetChrome().Event;"
 213       "var assert = requireNative('assert');"
 214       "var bindings = requireNative('event_bindings');"
 215       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
 216       "var e = new Event('myevent', undefined, eventOpts);"
 217       "var cb1 = function() {};"
 218       "var cb2 = function() {};"
 219       "var filters = {url: [{hostSuffix: 'google.com'}]};"
 220       "e.addListener(cb1, filters);"
 221       "e.addListener(cb2, filters);"
 222       "e.detach_();"
 223       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
 224   module_system_->Require("test");
 225 }
 226
 227 TEST_F(EventUnittest, AttachAndRemoveSameFilteredEventListener) {
 228   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 229   RegisterModule("test",
 230       "require('event');"
 231       "var Event = requireNative('chrome').GetChrome().Event;"
 232       "var assert = requireNative('assert');"
 233       "var bindings = requireNative('event_bindings');"
 234       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
 235       "var e = new Event('myevent', undefined, eventOpts);"
 236       "var cb = function() {};"
 237       "var filters = {url: [{hostSuffix: 'google.com'}]};"
 238       "e.addListener(cb, filters);"
 239       "e.addListener(cb, filters);"
 240       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
 241       "e.removeListener(cb);"
 242       "assert.AssertTrue(bindings.HasFilteredListener('myevent'));"
 243       "e.removeListener(cb);"
 244       "assert.AssertFalse(bindings.HasFilteredListener('myevent'));");
 245   module_system_->Require("test");
 246 }
 247
 248 TEST_F(EventUnittest, AddingFilterWithUrlFieldNotAListThrowsException) {
 249   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 250   RegisterModule("test",
 251       "require('event');"
 252       "var Event = requireNative('chrome').GetChrome().Event;"
 253       "var assert = requireNative('assert');"
 254       "var eventOpts = {supportsListeners: true, supportsFilters: true};"
 255       "var e = new Event('myevent', undefined, eventOpts);"
 256       "var cb = function() {};"
 257       "var filters = {url: {hostSuffix: 'google.com'}};"
 258       "var caught = false;"
 259       "try {"
 260       "  e.addListener(cb, filters);"
 261       "} catch (e) {"
 262       "  caught = true;"
 263       "}"
 264       "assert.AssertTrue(caught);");
 265   module_system_->Require("test");
 266 }
 267
 268 TEST_F(EventUnittest, MaxListeners) {
 269   ModuleSystem::NativesEnabledScope natives_enabled_scope(module_system_.get());
 270   RegisterModule("test",
 271       "require('event');"
 272       "var Event = requireNative('chrome').GetChrome().Event;"
 273       "var assert = requireNative('assert');"
 274       "var eventOpts = {supportsListeners: true, maxListeners: 1};"
 275       "var e = new Event('myevent', undefined, eventOpts);"
 276       "var cb = function() {};"
 277       "var caught = false;"
 278       "try {"
 279       "  e.addListener(cb);"
 280       "} catch (e) {"
 281       "  caught = true;"
 282       "}"
 283       "assert.AssertTrue(!caught);"
 284       "try {"
 285       "  e.addListener(cb);"
 286       "} catch (e) {"
 287       "  caught = true;"
 288       "}"
 289       "assert.AssertTrue(caught);");
 290   module_system_->Require("test");
 291 }
 292
 293 }  // namespace
 294 }  // namespace extensions