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tests.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="https://code.jquery.com/qunit/qunit-1.20.0.css" type="text/css">
</head>
<body>
<div id="qunit"></div>
<div id="qunit-fixture"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/waypoints/4.0.1/noframework.waypoints.min.js"></script>
<script src="./dist/two-step.js" type="text/javascript" charset="utf-8"></script>
<script src="https://code.jquery.com/jquery-latest.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fixto/0.5.0/fixto.min.js"></script>
<script src="https://code.jquery.com/qunit/qunit-1.20.0.js" type="text/javascript"></script>
<style>
body {
padding-bottom: 3000px;
}
#qunit-fixture {
position: static;
}
#qunit-fixture > div {
height: 500px;
}
</style>
<script>
window.scrollTo(0, 0);
var fixture = $('#qunit-fixture');
var twoColTemplate = "\n <div style=\"display: flex;\">\n <div class=\"leftcol\">\n <div class=\"item\"></div>\n <div class=\"item\"></div>\n <div class=\"item\"></div>\n </div>\n <div class=\"rightcol\">\n chart here\n </div>\n </div>\n";
QUnit.test( "onChange", function( assert ) {
var done = assert.async();
assert.expect(4);
var count = 0;
fixture.append('<div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
onChange: function(event) {
assert.ok(true, 'onChange called');
assert.ok(event.index > -1);
count++;
if (count > 1) {
window.scrollTo(0, 0);
ts.disable();
done();
}
}
});
window.scrollTo(0, 1000);
});
QUnit.test( "Offset", function( assert ) {
var done = assert.async();
assert.expect(3);
var count = 0;
fixture.append('<div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
offset:{"up":"50%","down":"-10%"},
onChange: function(event){
assert.ok(true, 'Offset works');
count++;
if (count > 2) {
ts.disable();
done();
}
else if (count > 1) {
window.scrollTo(0, 0);
}
}
});
window.scrollTo(0, 1000);
});
QUnit.test( "Continuous false", function( assert ) {
var done = assert.async();
assert.expect(1);
var count = 0;
fixture.append('<div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
continuous: false,
onChange: function() {
assert.ok(true, 'onChange called');
}
});
window.scrollTo(0, 1000);
setTimeout(function() {
window.scrollTo(0, 0);
ts.disable();
done();
}, 100);
});
QUnit.test( "narrative functions", function( assert ) {
var done = assert.async();
assert.expect(3);
var count = 0;
fixture.append('<div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
narrative: [
function(ev) {
assert.ok(true, 'narr 1 called');
count++;
},
function(ev) {
assert.equal(count, 1, 'narr 2 after narr 1');
assert.ok(true, 'narr 2 called');
count++;
}
]
});
scrollToY(2000).then(function() {
ts.disable();
window.scrollTo(0, 0);
done();
});
});
QUnit.test( "wrong number of narrative functions", function( assert ) {
fixture.append('<div></div><div></div>');
assert.throws(function() {
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
narrative: [
function(ev) {}
]
});
}, /Elements and narrative are different lengths/g);
});
QUnit.test( "no elements", function( assert ) {
assert.throws(function() {
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
narrative: [
function(ev) {}
]
});
}, /Elements array is empty/g);
});
QUnit.test( "keyboard controls", function( assert ) {
window.scrollTo(0, 0);
var done = assert.async();
assert.expect(5);
fixture.append('<div></div><div></div>');
var count = 0;
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
onChange: function(ev) {
count++;
ts.disable();
assert.ok(true, 'onChange called');
if (count === 1) {
setTimeout(function() {
window.scrollTo(0, 0);
done();
}, 600);
}
}
});
assert.equal(ts.index, -1, 'index is -1');
// trigger up key
$('body').trigger({type: 'keydown', which: 38, keyCode: 38, metaKey: false });
assert.equal(ts.index, -1, 'index is -1');
// trigger down key
$('body').trigger({type: 'keydown', which: 40, keyCode: 40, metaKey: false });
assert.equal(ts.index, 0, 'index is 0');
$('body').trigger({type: 'keydown', which: 40, keyCode: 40, metaKey: false });
assert.equal(ts.index, 0, 'index is 0');
});
QUnit.test( "bad goTo calls", function( assert ) {
fixture.append('<div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray()
});
assert.throws(function() {
ts.goTo(-1);
}, /-1 is not a valid index/g);
assert.throws(function() {
ts.goTo(2);
}, /2 is not a valid index/g);
});
QUnit.test( "goTo with scroll", function( assert ) {
var done = assert.async();
var count = 0;
fixture.append('<div></div><div></div><div></div>');
var ts = new TwoStep({
elements: fixture.find('div').toArray(),
onChange: function(ev) {
assert.equal(ev.index, 2, 'onChange only called for div 3');
count++;
}
});
ts.goTo(2, true).then(function() {
ts.disable();
assert.equal(count, 1, 'onChange only called once');
window.scrollTo(0, 0);
done();
});
});
QUnit.test( "sticky element", function( assert ) {
fixture.html(twoColTemplate);
var ts = new TwoStep({
elements: fixture.find('.item').toArray(),
stick: fixture.find('.rightcol')[0]
});
assert.ok(fixture.find('.rightcol .two-step-sticky-wrapper'), 'sticky wrapper applied');
});
function scrollToY(y, onComplete) {
return $('html, body').animate({
scrollTop: y
}, 50)
.promise()
.then(function() {
if (onComplete) {
onComplete();
}
});
}
</script>
</body>
</html>