Files
polymer/test/unit/utils.html
2015-12-08 16:18:54 -08:00

191 lines
4.9 KiB
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<!doctype html>
<!--
@license
Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<html>
<head>
<meta charset="utf-8">
<script src="../../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../../web-component-tester/browser.js"></script>
<link rel="import" href="../../polymer.html">
</head>
<body>
<script>
HTMLImports.whenReady(function() {
Polymer({is: 'my-element'});
});
setup(function() {
window.el1 = document.createElement('my-element');
document.body.appendChild(window.el1);
window.el2 = document.createElement('my-element');
window.el1.appendChild(window.el2);
});
teardown(function() {
document.body.removeChild(window.el1);
delete window.el1;
delete window.el2;
});
suite('CSS utilities', function() {
test('toggleClass', function() {
window.el1.toggleClass('foo-class', true);
assert(window.el1.classList.contains('foo-class'));
window.el1.toggleClass('foo-class', false);
assert(!window.el1.classList.contains('foo-class'));
window.el1.toggleClass('foo-class');
assert(window.el1.classList.contains('foo-class'));
window.el1.toggleClass('foo-class');
assert(!window.el1.classList.contains('foo-class'));
window.el1.toggleClass('foo-class', true, window.el2);
assert(window.el2.classList.contains('foo-class'));
window.el1.toggleClass('foo-class', false, window.el2);
assert(!window.el2.classList.contains('foo-class'));
});
});
suite('debounce', function() {
test('debounce (no-wait)', function(done) {
var called = 0;
var cb = function() {
called++;
};
window.el1.debounce('foo', cb);
window.el1.debounce('foo', cb);
window.el1.debounce('foo', cb);
setTimeout(function() {
assert.equal(called, 1, 'debounce should be called exactly once');
done();
});
});
test('debounce (wait)', function(done) {
var called = 0;
var cb = function() {
called++;
};
window.el1.debounce('foo', cb);
window.el1.debounce('foo', cb, 50);
window.el1.debounce('foo', cb, 100);
setTimeout(function() {
assert.equal(called, 0, 'callback is not called yet');
}, 50);
setTimeout(function() {
assert.equal(called, 1, 'callback was called exactly once');
done();
}, 200);
});
test('debounce flushing', function(done) {
var called = 0;
var cb = function() {
called++;
};
window.el1.debounce('foo', cb);
window.el1.flushDebouncer('foo');
window.el1.debounce('foo', cb);
setTimeout(function() {
assert.equal(called, 2, 'debounce should be called twice');
done();
}, 100);
});
test('debounce state', function(done) {
window.el1.debounce('foo', function() {
assert.equal(window.el1.isDebouncerActive('foo'), false, 'debouncer is inactive after resolution');
done();
});
assert.equal(window.el1.isDebouncerActive('foo'), true, 'debouncer is active immediately after triggering');
});
test('debounce cancelling', function(done) {
var triggered = false;
window.el1.debounce('foo', function() {
triggered = true;
});
window.el1.cancelDebouncer('foo');
assert.equal(window.el1.isDebouncerActive('foo'), false, 'debouncer is inactive after cancelling');
setTimeout(function() {
assert.equal(triggered, false, 'debounce never fired');
done();
}, 100);
});
test('duplicate debouncer assignment (no-wait)', function(done) {
var a, b;
window.el1.debounce('foo', function() {
a = 'foo';
});
window.el1.debounce('foo', function() {
b = 'bar';
});
setTimeout(function() {
assert.equal(a, undefined, 'first debouncer was never fired');
assert.equal(b, 'bar', 'only the second debouncer callback was executed');
done();
});
});
test('duplicate debouncer assignment (wait)', function(done) {
var a, b, delay = 50;
window.el1.debounce('foo', function() {
a = 'foo';
}, delay);
window.el1.debounce('foo', function() {
b = 'bar';
}, delay);
setTimeout(function() {
assert.equal(a, undefined, 'first debouncer was never fired');
assert.equal(b, 'bar', 'only the second debouncer callback was executed');
done();
}, (delay+50));
});
});
</script>
</body>
</html>