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<html>
<head>
<title>iron-collapse-flex</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
<script src="../../web-component-tester/browser.js"></script>
<script src="../../test-fixture/test-fixture-mocha.js"></script>
<link rel="import" href="../../iron-flex-layout/iron-flex-layout-classes.html">
<link rel="import" href="../../test-fixture/test-fixture.html">
<link rel="import" href="../iron-collapse.html">
<style is="custom-style" include="iron-flex">
</style>
</head>
<body>
<test-fixture id="test">
<template>
<div id="container" class="layout vertical" style="height: 200px">
<iron-collapse id="collapse" opened style="flex: 1 0 auto">
<div style="height:100px;">
Lorem ipsum
</div>
</iron-collapse>
</div>
</template>
</test-fixture>
<script>
suite('flex', function() {
var container;
var collapse;
var collapseHeight;
setup(function() {
container = fixture('test');
collapse = container.querySelector('iron-collapse');
collapseHeight = getComputedStyle(collapse).height;
});
test('default opened height', function() {
assert.equal(collapse.style.height, '');
});
test('set opened to false triggers animation', function(done) {
collapse.opened = false;
// Animation got enabled.
assert.notEqual(collapse.style.transitionDuration, '0s');
collapse.addEventListener('transitionend', function() {
// Animation disabled.
assert.equal(collapse.style.transitionDuration, '0s');
done();
});
});
test('enableTransition(false) disables animations', function() {
collapse.enableTransition(false);
assert.isTrue(collapse.noAnimation, '`noAnimation` is true');
// trying to animate the size update
collapse.updateSize('0px', true);
// Animation immediately disabled.
assert.equal(collapse.style.maxHeight, '0px');
});
test('set opened to false, then to true', function(done) {
// this listener will be triggered twice (every time `opened` changes)
collapse.addEventListener('transitionend', function() {
if (collapse.opened) {
// Check finalSize after animation is done.
assert.equal(collapse.style.maxHeight, '');
done();
} else {
// Check if size is still 0px.
assert.equal(collapse.style.maxHeight, '0px');
// Trigger 2nd toggle.
collapse.opened = true;
// Size should be immediately set.
assert.equal(collapse.style.maxHeight, collapseHeight);
}
});
// Trigger 1st toggle.
collapse.opened = false;
// Size should be immediately set.
assert.equal(collapse.style.maxHeight, '0px');
});
test('opened changes trigger iron-resize', function() {
var spy = sinon.stub();
collapse.addEventListener('iron-resize', spy);
// No animations for faster test.
collapse.noAnimation = true;
collapse.opened = false;
assert.isTrue(spy.calledOnce, 'iron-resize was fired');
});
test('overflow is hidden while animating', function(done) {
collapse.addEventListener('transitionend', function() {
// Should still be hidden.
assert.equal(getComputedStyle(collapse).overflow, 'hidden');
done();
});
assert.equal(getComputedStyle(collapse).overflow, 'visible');
collapse.opened = false;
// Immediately updated style.
assert.equal(getComputedStyle(collapse).overflow, 'hidden');
});
test('toggle horizontal updates size', function() {
collapse.horizontal = false;
assert.equal(collapse.style.width, '');
assert.equal(collapse.style.maxHeight, '');
assert.equal(collapse.style.transitionProperty, 'max-height');
collapse.horizontal = true;
assert.equal(collapse.style.maxWidth, '');
assert.equal(collapse.style.height, '');
assert.equal(collapse.style.transitionProperty, 'max-width');
});
});
</script>
</body>
</html>