gecko/browser/base/content/test/browser_bug321000.js

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 * The Original Code is Firefox Browser Test Code.
 *
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 * Contributor(s):
 *   Ted Mielczarek <ted.mielczarek@gmail.com> (Original Author)
 *   Marco Bonardo <mak77@bonardo.net>
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const Ci = Components.interfaces;
const Cc = Components.classes;

const kTestString = "  hello hello  \n  world\nworld  ";

var gTests = [

  { desc: "Urlbar strips newlines and surrounding whitespace",
    element: gURLBar,
    expected: kTestString.replace(/\s*\n\s*/g,'')
  },

  { desc: "Searchbar replaces newlines with spaces",
    element: document.getElementById('searchbar'),
    expected: kTestString.replace('\n',' ','g')
  },

];

// Test for bug 23485 and bug 321000.
// Urlbar should strip newlines,
// search bar should replace newlines with spaces.
function test() {
  waitForExplicitFinish();

  // Put a multi-line string in the clipboard.
  info("About to put a string in clipboard");
  Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper)
                                             .copyString(kTestString);

  // Setting the clipboard value is an async OS operation, so we need to poll
  // the clipboard for valid data before going on.
  setTimeout(poll_clipboard, 100);
}

var runCount = 0;
function poll_clipboard() {
  // Poll for a maximum of 5s (each run happens after 100ms).
  if (++runCount > 50) {
    // Log the failure.
    ok(false, "Timed out while polling clipboard for pasted data");
    // Cleanup and interrupt the test.
    finish_test();
    return;
  }

  info("Polling clipboard cycle " + runCount);
  var clip = Cc["@mozilla.org/widget/clipboard;1"].
             getService(Ci.nsIClipboard);
  var trans = Cc["@mozilla.org/widget/transferable;1"].
              createInstance(Ci.nsITransferable);
  trans.addDataFlavor("text/unicode");
  var str = new Object();
  try {
    // This code could throw if the clipboard is not set yet.
    clip.getData(trans, clip.kGlobalClipboard);
    trans.getTransferData("text/unicode", str, {});
    str = str.value.QueryInterface(Ci.nsISupportsString);
  }
  catch(ex) {}

  if (kTestString == str) {
    next_test();
  }
  else
    setTimeout(poll_clipboard, 100);
}

function next_test() {
  if (gTests.length) {
    var currentTest = gTests.shift();
    test_paste(currentTest);
  }
  else {
    // No more tests to run.
    // Clear the clipboard, emptyClipboard would not clear the native one, so
    // we are setting it to an empty string.
    Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper)
                                               .copyString("");
    finish();
  }
}

function test_paste(aCurrentTest) {
  var element = aCurrentTest.element;

  // Register input listener.
  var inputListener = {
    test: aCurrentTest,
    handleEvent: function(event) {
      var element = event.target;
      element.removeEventListener("input", this, false);

      is(element.value, this.test.expected, this.test.desc);

      // Clear the field and go to next test.
      element.value = "";
      setTimeout(next_test, 0);
    }
  }
  element.addEventListener("input", inputListener, false);

  // Focus the window.
  window.focus();

  // Focus the element and wait for focus event.
  info("About to focus " + element.id);
  element.addEventListener("focus", function() {
    element.removeEventListener("focus", arguments.callee, false);
    executeSoon(function() {
      // Pasting is async because the Accel+V codepath ends up going through
      // DocumentViewerImpl::FireClipboardEvent.
      info("Pasting into " + element.id);
      EventUtils.synthesizeKey("v", { accelKey: true });
    });
  }, false);
  element.focus();
}