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<!DOCTYPE html>
<html>
<!--
Copyright 2010 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.Select</title>
<script src="../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.dom.a11y');
goog.require('goog.dom.a11y.Role');
goog.require('goog.dom.a11y.State');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
goog.require('goog.ui.Component.EventType');
goog.require('goog.ui.MenuItem');
goog.require('goog.ui.Select');
</script>
</head>
<body>
<div id="sandbox"></div>
<script>
var defaultCaption = 'initial caption';
var sandbox = goog.dom.getElement('sandbox');
var select;
function setUp() {
select = new goog.ui.Select(defaultCaption);
}
function tearDown() {
select.dispose();
goog.dom.removeChildren(sandbox);
}
/**
* Checks that the default caption passed in the constructor and in the setter
* is returned by getDefaultCaption, and acts as a default caption, i.e. is
* shown as a caption when no items are selected.
*/
function testDefaultCaption() {
select.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1");
select.addItem(item1);
select.addItem(new goog.ui.MenuItem("item 2"));
assertEquals(defaultCaption, select.getDefaultCaption());
assertEquals(defaultCaption, select.getCaption());
var newCaption = 'new caption';
select.setDefaultCaption(newCaption);
assertEquals(newCaption, select.getDefaultCaption());
assertEquals(newCaption, select.getCaption());
select.setSelectedItem(item1);
assertNotEquals(newCaption, select.getCaption());
select.setSelectedItem(null);
assertEquals(newCaption, select.getCaption());
}
// Confirms that aria roles for select conform to spec:
// http://www.w3.org/TR/wai-aria/roles#listbox
// Basically the select should have a role of LISTBOX and all the items should
// have a role of OPTION.
function testAriaRoles() {
select.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1");
select.addItem(item1);
var item2 = new goog.ui.MenuItem("item 2");
select.addItem(item2);
assertEquals(goog.dom.a11y.Role.LISTBOX,
goog.dom.a11y.getRole(select.getElement()));
assertEquals('false', goog.dom.a11y.getState(select.getElement(),
goog.dom.a11y.State.HASPOPUP));
assertEquals(goog.dom.a11y.Role.OPTION,
goog.dom.a11y.getRole(item1.getElement()));
assertEquals(goog.dom.a11y.Role.OPTION,
goog.dom.a11y.getRole(item2.getElement()));
}
/**
* Checks that the select control handles ACTION events from its items.
*/
function testHandlesItemActions() {
select.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1");
var item2 = new goog.ui.MenuItem("item 2");
select.addItem(item1);
select.addItem(item2);
item1.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals(item1, select.getSelectedItem());
assertEquals(item1.getCaption(), select.getCaption());
item2.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals(item2, select.getSelectedItem());
assertEquals(item2.getCaption(), select.getCaption());
}
/**
* Tests goog.ui.Select.prototype.setValue.
*/
function testSetValue() {
select.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1", 1);
var item2 = new goog.ui.MenuItem("item 2", 2);
select.addItem(item1);
select.addItem(item2);
select.setValue(1);
assertEquals(item1, select.getSelectedItem());
select.setValue(2);
assertEquals(item2, select.getSelectedItem());
select.setValue(3);
assertNull(select.getSelectedItem());
}
/**
* Checks that the current selection is cleared when the selected item is
* removed.
*/
function testSelectionIsClearedWhenSelectedItemIsRemoved() {
select.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1");
select.addItem(item1);
select.addItem(new goog.ui.MenuItem("item 2"));
select.setSelectedItem(item1);
select.removeItem(item1);
assertNull(select.getSelectedItem());
}
/**
* Check that the select control is subscribed to its selection model events
* after being added, removed and added back again into the document.
*/
function testExitAndEnterDocument() {
var component = new goog.ui.Component();
component.render(sandbox);
var item1 = new goog.ui.MenuItem("item 1");
var item2 = new goog.ui.MenuItem("item 2");
var item3 = new goog.ui.MenuItem("item 3");
select.addItem(item1);
select.addItem(item2);
select.addItem(item3);
component.addChild(select, true);
item2.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals(item2.getCaption(), select.getCaption());
component.removeChild(select, true);
item1.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals(item2.getCaption(), select.getCaption());
component.addChild(select, true);
item3.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals(item3.getCaption(), select.getCaption());
}
function testSelectEventFiresForProgrammaticChange() {
select.render();
var item1 = new goog.ui.MenuItem("item 1");
var item2 = new goog.ui.MenuItem("item 2");
select.addItem(item1);
select.addItem(item2);
var recordingHandler = new goog.testing.recordFunction();
goog.events.listen(
select, goog.ui.Component.EventType.CHANGE, recordingHandler);
select.setSelectedItem(item2);
assertEquals('Selecting new item should fire CHANGE event.',
1, recordingHandler.getCallCount());
select.setSelectedItem(item2);
assertEquals('Selecting the same item should not fire CHANGE event.',
1, recordingHandler.getCallCount());
select.setSelectedIndex(0);
assertEquals('Selecting new item should fire CHANGE event.',
2, recordingHandler.getCallCount());
select.setSelectedIndex(0);
assertEquals('Selecting the same item should not fire CHANGE event.',
2, recordingHandler.getCallCount());
}
function testSelectEventFiresForUserInitiatedAction() {
select.render();
var item1 = new goog.ui.MenuItem("item 1");
var item2 = new goog.ui.MenuItem("item 2");
select.addItem(item1);
select.addItem(item2);
var recordingHandler = new goog.testing.recordFunction();
goog.events.listen(
select, goog.ui.Component.EventType.CHANGE, recordingHandler);
select.setOpen(true);
item2.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals('Selecting new item should fire CHANGE event.',
1, recordingHandler.getCallCount());
assertFalse(select.isOpen());
select.setOpen(true);
item2.dispatchEvent(goog.ui.Component.EventType.ACTION);
assertEquals('Selecting the same item should not fire CHANGE event.',
1, recordingHandler.getCallCount());
assertFalse(select.isOpen());
}
</script>
</body>
</html>
|
