The Tor Browser: comparison toolkit/components/autocomplete/tests/unit/test_393191.js

comparison: toolkit/components/autocomplete/tests/unit/test_393191.js

toolkit/components/autocomplete/tests/unit/test_393191.js

branch: TOR_BUG_3246
changeset 7: 129ffea94266

equal deleted inserted replaced

--1:000000000000
+:0700b4331da7
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/**
+* Unit test for Bug 393191 - AutoComplete crashes if result is null
+*/
+/**
+* Dummy nsIAutoCompleteInput source that returns
+* the given list of AutoCompleteSearch names.
+*
+* Implements only the methods needed for this test.
+*/
+function AutoCompleteInput(aSearches) {
+this.searches = aSearches;
+}
+AutoCompleteInput.prototype = {
+constructor: AutoCompleteInput,
+// Array of AutoCompleteSearch names
+searches: null,
+minResultsForPopup: 0,
+timeout: 10,
+searchParam: "",
+textValue: "",
+disableAutoComplete: false,
+completeDefaultIndex: false,
+get searchCount() {
+return this.searches.length;
+},
+getSearchAt: function(aIndex) {
+return this.searches[aIndex];
+},
+onSearchBegin: function() {},
+onSearchComplete: function() {},
+popupOpen: false,
+popup: {
+setSelectedIndex: function(aIndex) {},
+invalidate: function() {},
+// nsISupports implementation
+QueryInterface: function(iid) {
+if (iid.equals(Ci.nsISupports) ||
+iid.equals(Ci.nsIAutoCompletePopup))
+return this;
+throw Components.results.NS_ERROR_NO_INTERFACE;
+}
+},
+// nsISupports implementation
+QueryInterface: function(iid) {
+if (iid.equals(Ci.nsISupports) ||
+iid.equals(Ci.nsIAutoCompleteInput))
+return this;
+throw Components.results.NS_ERROR_NO_INTERFACE;
+}
+}
+/**
+* nsIAutoCompleteResult implementation
+*/
+function AutoCompleteResult(aValues, aComments, aStyles) {
+this._values = aValues;
+this._comments = aComments;
+this._styles = aStyles;
+if (this._values.length > 0) {
+this.searchResult = Ci.nsIAutoCompleteResult.RESULT_SUCCESS;
+} else {
+this.searchResult = Ci.nsIAutoCompleteResult.NOMATCH;
+}
+}
+AutoCompleteResult.prototype = {
+constructor: AutoCompleteResult,
+// Arrays
+_values: null,
+_comments: null,
+_styles: null,
+searchString: "",
+searchResult: null,
+defaultIndex: 0,
+get matchCount() {
+return this._values.length;
+},
+getValueAt: function(aIndex) {
+return this._values[aIndex];
+},
+getLabelAt: function(aIndex) {
+return this.getValueAt(aIndex);
+},
+getCommentAt: function(aIndex) {
+return this._comments[aIndex];
+},
+getStyleAt: function(aIndex) {
+return this._styles[aIndex];
+},
+getImageAt: function(aIndex) {
+return "";
+},
+getFinalCompleteValueAt: function(aIndex) {
+return this.getValueAt(aIndex);
+},
+removeValueAt: function (aRowIndex, aRemoveFromDb) {},
+// nsISupports implementation
+QueryInterface: function(iid) {
+if (iid.equals(Ci.nsISupports) ||
+iid.equals(Ci.nsIAutoCompleteResult))
+return this;
+throw Components.results.NS_ERROR_NO_INTERFACE;
+}
+}
+/**
+* nsIAutoCompleteSearch implementation that always returns
+* the same result set.
+*/
+function AutoCompleteSearch(aName, aResult) {
+this.name = aName;
+}
+AutoCompleteSearch.prototype = {
+constructor: AutoCompleteSearch,
+// Search name. Used by AutoCompleteController
+name: null,
+// AutoCompleteResult
+_result:null,
+/**
+* Return the same result set for every search
+*/
+startSearch: function(aSearchString,
+aSearchParam,
+aPreviousResult,
+aListener)
+{
+aListener.onSearchResult(this, this._result);
+},
+stopSearch: function() {},
+// nsISupports implementation
+QueryInterface: function(iid) {
+if (iid.equals(Ci.nsISupports) ||
+iid.equals(Ci.nsIFactory) ||
+iid.equals(Ci.nsIAutoCompleteSearch))
+return this;
+throw Components.results.NS_ERROR_NO_INTERFACE;
+},
+// nsIFactory implementation
+createInstance: function(outer, iid) {
+return this.QueryInterface(iid);
+}
+}
+/**
+* Helper to register an AutoCompleteSearch with the given name.
+* Allows the AutoCompleteController to find the search.
+*/
+function registerAutoCompleteSearch(aSearch) {
+var name = "@mozilla.org/autocomplete/search;1?name=" + aSearch.name;
+var uuidGenerator = Cc["@mozilla.org/uuid-generator;1"].
+getService(Ci.nsIUUIDGenerator);
+var cid = uuidGenerator.generateUUID();
+var desc = "Test AutoCompleteSearch";
+var componentManager = Components.manager
+.QueryInterface(Ci.nsIComponentRegistrar);
+componentManager.registerFactory(cid, desc, name, aSearch);
+// Keep the id on the object so we can unregister later
+aSearch.cid = cid;
+}
+/**
+* Helper to unregister an AutoCompleteSearch.
+*/
+function unregisterAutoCompleteSearch(aSearch) {
+var componentManager = Components.manager
+.QueryInterface(Ci.nsIComponentRegistrar);
+componentManager.unregisterFactory(aSearch.cid, aSearch);
+}
+/**
+* Test AutoComplete with a search that returns a null result
+*/
+function run_test() {
+// Make an AutoCompleteSearch that always returns nothing
+var emptySearch = new AutoCompleteSearch("test-empty-search",
+new AutoCompleteResult([], [], []));
+// Register search so AutoCompleteController can find them
+registerAutoCompleteSearch(emptySearch);
+var controller = Components.classes["@mozilla.org/autocomplete/controller;1"].
+getService(Components.interfaces.nsIAutoCompleteController);
+// Make an AutoCompleteInput that uses our search
+// and confirms results on search complete
+var input = new AutoCompleteInput([emptySearch.name]);
+var numSearchesStarted = 0;
+input.onSearchBegin = function() {
+numSearchesStarted++;
+do_check_eq(numSearchesStarted, 1);
+};
+input.onSearchComplete = function() {
+do_check_eq(numSearchesStarted, 1);
+do_check_eq(controller.searchStatus,
+Ci.nsIAutoCompleteController.STATUS_COMPLETE_NO_MATCH);
+do_check_eq(controller.matchCount, 0);
+// Unregister searches
+unregisterAutoCompleteSearch(emptySearch);
+do_test_finished();
+};
+controller.input = input;
+// Search is asynchronous, so don't let the test finish immediately
+do_test_pending();
+controller.startSearch("test");
+}