gecko-dev/accessible/tests/mochitest/testTextboxes.js

function testValue(aID, aAcc, aValue, aRole)
{
  if (aRole == ROLE_PASSWORD_TEXT) {
    var value;
    try {
      value = aAcc.value;
      do_throw("We do not want a value on " + aID + "!");
    } catch(e) {
      is(e.result, Components.results.NS_ERROR_FAILURE,
         "Wrong return value for getValue on " + aID + "!");
    }
  } else
    is(aAcc.value, aValue, "Wrong value for " + aID + "!");
}

function testAction(aID, aAcc, aNumActions, aActionName, aActionDescription)
{
  var numActions = aAcc.numActions;
  is(numActions, aNumActions, "Wrong number of actions for " + aID + "!");

  if (numActions != 0) {
    // Test first action. Normally only 1 should be present.
    is(aAcc.getActionName(0), aActionName,
       "Wrong name of action for " + aID + "!");
    is(aAcc.getActionDescription(0), aActionDescription,
       "Wrong description of action for " + aID + "!");
  }
}

function testThis(aID, aName, aValue, aDescription, aRole, aState,
                  aExtraState, aAbsentState, aNumActions, aActionName,
                  aActionDescription)
{
  var acc = getAccessible(aID);
  if (!acc)
    return;

  is(acc.name, aName, "Wrong name for " + aID + "!");
  testValue(aID, acc, aValue, aRole);
  is(acc.description, aDescription, "Wrong description for " + aID + "!");
  testRole(aID, aRole);

  testStates(acc, aState, aExtraState, aAbsentState);

  testAction(aID, acc, aNumActions, aActionName, aActionDescription);
}