html2canvas/tests/mocha/css.js

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var NodeContainer = html2canvas.NodeContainer;
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describe('Borders', function() {
$('#borders div').each(function(i, node) {
it($(this).attr('style'), function() {
["borderTopWidth", "borderRightWidth", "borderBottomWidth", "borderLeftWidth"].forEach(function(prop) {
var result = $(node).css(prop);
// older IE's don't necessarily return px even with jQuery
if (result === "thin") {
result = "1px";
} else if (result === "medium") {
result = "3px";
} else if (result === "thick") {
result = "5px";
}
var container = new NodeContainer(node, null);
expect(container.css(prop)).to.be(result);
});
});
});
});
describe('Padding', function() {
$('#padding div').each(function(i, node) {
it($(this).attr('style'), function() {
["paddingTop", "paddingRight", "paddingBottom", "paddingLeft"].forEach(function(prop) {
var container = new NodeContainer(node, null);
var result = container.css(prop);
expect(result).to.contain("px");
expect(result, $(node).css(prop));
});
});
});
});
describe('Background-position', function() {
$('#backgroundPosition div').each(function(i, node) {
it($(this).attr('style'), function() {
var prop = "backgroundPosition";
var img = new Image();
img.width = 50;
img.height = 50;
var container = new NodeContainer(node, null);
var item = container.css(prop),
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backgroundPosition = container.parseBackgroundPosition(html2canvas.utils.getBounds(node), img),
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split = (window.getComputedStyle) ? $(node).css(prop).split(" ") : [$(node).css(prop+"X"), $(node).css(prop+"Y")];
var testEl = $('<div />').css({
'position': 'absolute',
'left': split[0],
'top': split[1]
});
testEl.appendTo(node);
expect(backgroundPosition.left).to.equal(Math.floor(parseFloat(testEl.css('left'))));
expect(backgroundPosition.top).to.equal(Math.floor(parseFloat(testEl.css('top'))));
testEl.remove();
});
});
});
describe('Text-shadow', function() {
$('#textShadows div').each(function(i, node) {
var index = i + 1;
var container = new NodeContainer(node, null);
var shadows = container.parseTextShadows();
if (i === 0) {
expect(shadows.length).to.equal(0);
} else {
expect(shadows.length).to.equal(i >= 6 ? 2 : 1);
expect(shadows[0].offsetX).to.equal(i);
expect(shadows[0].offsetY).to.equal(i);
if (i < 2) {
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expect(shadows[0].color.toString()).to.equal('rgba(0,0,0,0)');
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} else if (i % 2 === 0) {
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expect(shadows[0].color.toString()).to.equal('rgb(2,2,2)');
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} else {
var opacity = '0.2';
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expect(shadows[0].color.toString()).to.match(/rgba\(2,2,2,(0.2|0\.199219)\)/);
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}
// only testing blur once
if (i === 1) {
expect(shadows[0].blur).to.equal('1');
}
}
});
});
describe('Background-image', function() {
test_parse_background_image(
'url("te)st")',
{
prefix: '',
method: 'url',
value: 'url("te)st")',
args: ['te)st'],
image: null
},
'test quoted'
);
test_parse_background_image(
'url("te,st")',
{
prefix: '',
method: 'url',
value: 'url("te,st")',
args: ['te,st'],
image: null
},
'test quoted'
);
test_parse_background_image(
'url(te,st)',
{
prefix: '',
method: 'url',
value: 'url(te,st)',
args: ['te,st'],
image: null
},
'test quoted'
);
test_parse_background_image(
'url(test)',
{
prefix: '',
method: 'url',
value: 'url(test)',
args: ['test'],
image: null
},
'basic url'
);
test_parse_background_image(
'url("test")',
{
prefix: '',
method: 'url',
value: 'url("test")',
args: ['test'],
image: null
},
'quoted url'
);
test_parse_background_image(
'url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)',
{
prefix: '',
method: 'url',
value: 'url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)',
args: ['data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7'],
image: null
},
'data url'
);
test_parse_background_image(
'linear-gradient(red,black)',
{
prefix: '',
method: 'linear-gradient',
value: 'linear-gradient(red,black)',
args: ['red','black'],
image: null
},
'linear-gradient'
);
test_parse_background_image(
'linear-gradient(top,rgb(255,0,0),rgb(0,0,0))',
{
prefix: '',
method: 'linear-gradient',
value: 'linear-gradient(top,rgb(255,0,0),rgb(0,0,0))',
args: ['top', 'rgb(255,0,0)', 'rgb(0,0,0)'],
image: null
},
'linear-gradient w/ rgb()'
);
test_parse_background_image(
'-webkit-linear-gradient(red,black)',
{
prefix: '-webkit-',
method: 'linear-gradient',
value: '-webkit-linear-gradient(red,black)',
args: ['red','black'],
image: null
},
'prefixed linear-gradient'
);
test_parse_background_image(
'linear-gradient(red,black), url(test), url("test"),\n none, ', [
{ prefix: '', method: 'linear-gradient', value: 'linear-gradient(red,black)', args: ['red','black'], image: null },
{ prefix: '', method: 'url', value: 'url(test)', args: ['test'], image: null },
{ prefix: '', method: 'url', value: 'url("test")', args: ['test'], image: null },
{ prefix: '', method: 'none', value: 'none', args: [], image: null }
],
'multiple backgrounds'
);
function test_parse_background_image(value, expected, name) {
it(name, function() {
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expect(html2canvas.utils.parseBackgrounds(value)).to.eql(Array.isArray(expected) ? expected : [expected]);
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});
}
});