firefox/toolkit/content/tests/chrome/test_autocomplete5.xhtml

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>

<window title="Autocomplete Widget Test 5"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        xmlns:html="http://www.w3.org/1999/xhtml">

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"/>

<html:input id="autocomplete"
            is="autocomplete-input"
            autocompletesearch="simple"
            notifylegacyevents="true"/>

<script class="testbody" type="application/javascript">
<![CDATA[

const ACR = Ci.nsIAutoCompleteResult;

// This result can't be constructed in-line, because otherwise we leak memory.
function nsAutoCompleteSimpleResult(aString)
{
  this.searchString = aString;
  this.searchResult = ACR.RESULT_SUCCESS;
  this.matchCount = 1;
  this._param = "SUCCESS";
}

nsAutoCompleteSimpleResult.prototype = {
 _param: "",
 searchString: null,
 searchResult: ACR.RESULT_FAILURE,
 defaultIndex: -1,
 errorDescription: null,
 matchCount: 0,
 getValueAt() { return this._param; },
 getCommentAt() { return null; },
 getStyleAt() { return null; },
 getImageAt() { return null; },
 getFinalCompleteValueAt() { return this.getValueAt(); },
 getLabelAt() { return null; },
 removeValueAt() {}
};

// A basic autocomplete implementation that either returns one result or none
var autoCompleteSimpleID = Components.ID("0a2afbdb-f30e-47d1-9cb1-0cd160240aca");
var autoCompleteSimpleName = "@mozilla.org/autocomplete/search;1?name=simple"
var autoCompleteSimple = {
  QueryInterface: ChromeUtils.generateQI(["nsIFactory", "nsIAutoCompleteSearch"]),

  createInstance(iid) {
    return this.QueryInterface(iid);
  },

  startSearch(aString, aParam, aResult, aListener) {
    var result = new nsAutoCompleteSimpleResult(aString);
    aListener.onSearchResult(this, result);
  },

  stopSearch() {}
};


let element = document.getElementById("autocomplete");

// Create stub to intercept `onSearchBegin` event.
element.onSearchBegin = function(original) {
  return function() {
    original.apply(this, arguments);
    checkSearchBegin();
  };
}(element.onSearchBegin);

// Create stub to intercept `onSearchComplete` event.
element.onSearchComplete = function(original) {
  return function() {
    original.apply(this, arguments);
    checkSearchCompleted();
  };
}(element.onSearchComplete);

element.addEventListener("textEntered", checkTextEntered);
element.addEventListener("textReverted", checkTextReverted);

var componentManager = Components.manager
                                 .QueryInterface(Ci.nsIComponentRegistrar);
componentManager.registerFactory(autoCompleteSimpleID, "Test Simple Autocomplete",
                                 autoCompleteSimpleName, autoCompleteSimple);

SimpleTest.waitForExplicitFinish();
setTimeout(startTest, 0);

function startTest() {
  let autocomplete = $("autocomplete");

  // blur the field to ensure that the popup is closed and that the previous
  // search has stopped, then start a new search.
  autocomplete.blur();
  autocomplete.focus();
  sendString("r");
}

let hasTextEntered = false;
let hasSearchBegun = false;

function checkSearchBegin() {
  hasSearchBegun = true;
}

let test = 0;
function checkSearchCompleted() {
  is(hasSearchBegun, true, "onsearchbegin handler has been correctly called.");

  if (test == 0) {
    hasSearchBegun = false;
    synthesizeKey("KEY_Enter");
  } else if (test == 1) {
    hasSearchBegun = false;
    synthesizeKey("KEY_Escape");
  } else {
    throw new Error("checkSearchCompleted should only be called twice.");
  }
}

function checkTextEntered() {
  is(test, 0, "checkTextEntered should be reached from first test.");
  is(hasSearchBegun, false, "onsearchbegin handler should not be called on text revert.");

  // fire second test
  test++;

  let autocomplete = $("autocomplete");
  autocomplete.textValue = "";
  autocomplete.blur();
  autocomplete.focus();
  sendString("r");
}

function checkTextReverted() {
  is(test, 1, "checkTextReverted should be the second test reached.");
  is(hasSearchBegun, false, "onsearchbegin handler should not be called on text revert.");

  setTimeout(function() {
    // Unregister the factory so that we don't get in the way of other tests
    componentManager.unregisterFactory(autoCompleteSimpleID, autoCompleteSimple);
    SimpleTest.finish();
  }, 0);
}

]]>
</script>

<body xmlns="http://www.w3.org/1999/xhtml">
<p id="display">
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>

</window>