30b577138d
git-subtree-dir: thirdparty/preact git-subtree-split: b2d90cc116f1d1998f7a7c98dc6986bf4c1841f4
440 lines
12 KiB
JavaScript
440 lines
12 KiB
JavaScript
/* global DISABLE_FLAKEY */
|
|
|
|
import { h, render } from '../../src/preact';
|
|
/** @jsx h */
|
|
|
|
function getAttributes(node) {
|
|
let attrs = {};
|
|
for (let i=node.attributes.length; i--; ) {
|
|
attrs[node.attributes[i].name] = node.attributes[i].value;
|
|
}
|
|
return attrs;
|
|
}
|
|
|
|
// hacky normalization of attribute order across browsers.
|
|
function sortAttributes(html) {
|
|
return html.replace(/<([a-z0-9-]+)((?:\s[a-z0-9:_.-]+=".*?")+)((?:\s*\/)?>)/gi, (s, pre, attrs, after) => {
|
|
let list = attrs.match(/\s[a-z0-9:_.-]+=".*?"/gi).sort( (a, b) => a>b ? 1 : -1 );
|
|
if (~after.indexOf('/')) after = '></'+pre+'>';
|
|
return '<' + pre + list.join('') + after;
|
|
});
|
|
}
|
|
|
|
describe('render()', () => {
|
|
let scratch;
|
|
|
|
before( () => {
|
|
scratch = document.createElement('div');
|
|
(document.body || document.documentElement).appendChild(scratch);
|
|
});
|
|
|
|
beforeEach( () => {
|
|
scratch.innerHTML = '';
|
|
});
|
|
|
|
after( () => {
|
|
scratch.parentNode.removeChild(scratch);
|
|
scratch = null;
|
|
});
|
|
|
|
it('should create empty nodes (<* />)', () => {
|
|
render(<div />, scratch);
|
|
expect(scratch.childNodes)
|
|
.to.have.length(1)
|
|
.and.to.have.deep.property('0.nodeName', 'DIV');
|
|
|
|
scratch.innerHTML = '';
|
|
|
|
render(<span />, scratch);
|
|
expect(scratch.childNodes)
|
|
.to.have.length(1)
|
|
.and.to.have.deep.property('0.nodeName', 'SPAN');
|
|
|
|
scratch.innerHTML = '';
|
|
|
|
render(<foo />, scratch);
|
|
render(<x-bar />, scratch);
|
|
expect(scratch.childNodes).to.have.length(2);
|
|
expect(scratch.childNodes[0]).to.have.property('nodeName', 'FOO');
|
|
expect(scratch.childNodes[1]).to.have.property('nodeName', 'X-BAR');
|
|
});
|
|
|
|
it('should nest empty nodes', () => {
|
|
render((
|
|
<div>
|
|
<span />
|
|
<foo />
|
|
<x-bar />
|
|
</div>
|
|
), scratch);
|
|
|
|
expect(scratch.childNodes)
|
|
.to.have.length(1)
|
|
.and.to.have.deep.property('0.nodeName', 'DIV');
|
|
|
|
let c = scratch.childNodes[0].childNodes;
|
|
expect(c).to.have.length(3);
|
|
expect(c).to.have.deep.property('0.nodeName', 'SPAN');
|
|
expect(c).to.have.deep.property('1.nodeName', 'FOO');
|
|
expect(c).to.have.deep.property('2.nodeName', 'X-BAR');
|
|
});
|
|
|
|
it('should not render falsey values', () => {
|
|
render((
|
|
<div>
|
|
{null},{undefined},{false},{0},{NaN}
|
|
</div>
|
|
), scratch);
|
|
|
|
expect(scratch.firstChild).to.have.property('innerHTML', ',,,0,NaN');
|
|
});
|
|
|
|
it('should clear falsey attributes', () => {
|
|
let root = render((
|
|
<div anull="anull" aundefined="aundefined" afalse="afalse" anan="aNaN" a0="a0" />
|
|
), scratch);
|
|
|
|
root = render((
|
|
<div anull={null} aundefined={undefined} afalse={false} anan={NaN} a0={0} />
|
|
), scratch, root);
|
|
|
|
expect(getAttributes(scratch.firstChild), 'from previous truthy values').to.eql({
|
|
a0: '0',
|
|
anan: 'NaN'
|
|
});
|
|
|
|
scratch.innerHTML = '';
|
|
|
|
root = render((
|
|
<div anull={null} aundefined={undefined} afalse={false} anan={NaN} a0={0} />
|
|
), scratch);
|
|
|
|
expect(getAttributes(scratch.firstChild), 'initial render').to.eql({
|
|
a0: '0',
|
|
anan: 'NaN'
|
|
});
|
|
});
|
|
|
|
it('should clear falsey input values', () => {
|
|
let root = render((
|
|
<div>
|
|
<input value={0} />
|
|
<input value={false} />
|
|
<input value={null} />
|
|
<input value={undefined} />
|
|
</div>
|
|
), scratch);
|
|
|
|
expect(root.children[0]).to.have.property('value', '0');
|
|
expect(root.children[1]).to.have.property('value', 'false');
|
|
expect(root.children[2]).to.have.property('value', '');
|
|
expect(root.children[3]).to.have.property('value', '');
|
|
});
|
|
|
|
it('should clear falsey DOM properties', () => {
|
|
let root;
|
|
function test(val) {
|
|
root = render((
|
|
<div>
|
|
<input value={val} />
|
|
<table border={val} />
|
|
</div>
|
|
), scratch, root);
|
|
}
|
|
|
|
test('2');
|
|
test(false);
|
|
expect(scratch).to.have.property('innerHTML', '<div><input><table></table></div>', 'for false');
|
|
|
|
test('3');
|
|
test(null);
|
|
expect(scratch).to.have.property('innerHTML', '<div><input><table></table></div>', 'for null');
|
|
|
|
test('4');
|
|
test(undefined);
|
|
expect(scratch).to.have.property('innerHTML', '<div><input><table></table></div>', 'for undefined');
|
|
});
|
|
|
|
it('should apply string attributes', () => {
|
|
render(<div foo="bar" data-foo="databar" />, scratch);
|
|
|
|
let div = scratch.childNodes[0];
|
|
expect(div).to.have.deep.property('attributes.length', 2);
|
|
|
|
expect(div).to.have.deep.property('attributes[0].name', 'foo');
|
|
expect(div).to.have.deep.property('attributes[0].value', 'bar');
|
|
|
|
expect(div).to.have.deep.property('attributes[1].name', 'data-foo');
|
|
expect(div).to.have.deep.property('attributes[1].value', 'databar');
|
|
});
|
|
|
|
it('should apply class as String', () => {
|
|
render(<div class="foo" />, scratch);
|
|
expect(scratch.childNodes[0]).to.have.property('className', 'foo');
|
|
});
|
|
|
|
it('should alias className to class', () => {
|
|
render(<div className="bar" />, scratch);
|
|
expect(scratch.childNodes[0]).to.have.property('className', 'bar');
|
|
});
|
|
|
|
it('should apply style as String', () => {
|
|
render(<div style="top:5px; position:relative;" />, scratch);
|
|
expect(scratch.childNodes[0]).to.have.deep.property('style.cssText')
|
|
.that.matches(/top\s*:\s*5px\s*/)
|
|
.and.matches(/position\s*:\s*relative\s*/);
|
|
});
|
|
|
|
it('should only register on* functions as handlers', () => {
|
|
let click = () => {},
|
|
onclick = () => {};
|
|
|
|
let proto = document.createElement('div').constructor.prototype;
|
|
|
|
sinon.spy(proto, 'addEventListener');
|
|
|
|
render(<div click={ click } onClick={ onclick } />, scratch);
|
|
|
|
expect(scratch.childNodes[0]).to.have.deep.property('attributes.length', 0);
|
|
|
|
expect(proto.addEventListener).to.have.been.calledOnce
|
|
.and.to.have.been.calledWithExactly('click', sinon.match.func, false);
|
|
|
|
proto.addEventListener.restore();
|
|
});
|
|
|
|
it('should add and remove event handlers', () => {
|
|
let click = sinon.spy(),
|
|
mousedown = sinon.spy();
|
|
|
|
let proto = document.createElement('div').constructor.prototype;
|
|
sinon.spy(proto, 'addEventListener');
|
|
sinon.spy(proto, 'removeEventListener');
|
|
|
|
function fireEvent(on, type) {
|
|
let e = document.createEvent('Event');
|
|
e.initEvent(type, true, true);
|
|
on.dispatchEvent(e);
|
|
}
|
|
|
|
render(<div onClick={ () => click(1) } onMouseDown={ mousedown } />, scratch);
|
|
|
|
expect(proto.addEventListener).to.have.been.calledTwice
|
|
.and.to.have.been.calledWith('click')
|
|
.and.calledWith('mousedown');
|
|
|
|
fireEvent(scratch.childNodes[0], 'click');
|
|
expect(click).to.have.been.calledOnce
|
|
.and.calledWith(1);
|
|
|
|
proto.addEventListener.reset();
|
|
click.reset();
|
|
|
|
render(<div onClick={ () => click(2) } />, scratch, scratch.firstChild);
|
|
|
|
expect(proto.addEventListener).not.to.have.been.called;
|
|
|
|
expect(proto.removeEventListener)
|
|
.to.have.been.calledOnce
|
|
.and.calledWith('mousedown');
|
|
|
|
fireEvent(scratch.childNodes[0], 'click');
|
|
expect(click).to.have.been.calledOnce
|
|
.and.to.have.been.calledWith(2);
|
|
|
|
fireEvent(scratch.childNodes[0], 'mousedown');
|
|
expect(mousedown).not.to.have.been.called;
|
|
|
|
proto.removeEventListener.reset();
|
|
click.reset();
|
|
mousedown.reset();
|
|
|
|
render(<div />, scratch, scratch.firstChild);
|
|
|
|
expect(proto.removeEventListener)
|
|
.to.have.been.calledOnce
|
|
.and.calledWith('click');
|
|
|
|
fireEvent(scratch.childNodes[0], 'click');
|
|
expect(click).not.to.have.been.called;
|
|
|
|
proto.addEventListener.restore();
|
|
proto.removeEventListener.restore();
|
|
});
|
|
|
|
it('should use capturing for events that do not bubble', () => {
|
|
let click = sinon.spy(),
|
|
focus = sinon.spy();
|
|
|
|
let root = render((
|
|
<div onClick={click} onFocus={focus}>
|
|
<button />
|
|
</div>
|
|
), scratch);
|
|
|
|
root.firstElementChild.click();
|
|
root.firstElementChild.focus();
|
|
|
|
expect(click, 'click').to.have.been.calledOnce;
|
|
|
|
if (DISABLE_FLAKEY!==true) {
|
|
// Focus delegation requires a 50b hack I'm not sure we want to incur
|
|
expect(focus, 'focus').to.have.been.calledOnce;
|
|
|
|
// IE doesn't set it
|
|
expect(click).to.have.been.calledWithMatch({ eventPhase: 0 }); // capturing
|
|
expect(focus).to.have.been.calledWithMatch({ eventPhase: 0 }); // capturing
|
|
}
|
|
});
|
|
|
|
it('should serialize style objects', () => {
|
|
let root = render((
|
|
<div style={{
|
|
color: 'rgb(255, 255, 255)',
|
|
background: 'rgb(255, 100, 0)',
|
|
backgroundPosition: '10px 10px',
|
|
'background-size': 'cover',
|
|
padding: 5,
|
|
top: 100,
|
|
left: '100%'
|
|
}}>
|
|
test
|
|
</div>
|
|
), scratch);
|
|
|
|
let { style } = scratch.childNodes[0];
|
|
expect(style).to.have.property('color').that.equals('rgb(255, 255, 255)');
|
|
expect(style).to.have.property('background').that.contains('rgb(255, 100, 0)');
|
|
expect(style).to.have.property('backgroundPosition').that.equals('10px 10px');
|
|
expect(style).to.have.property('backgroundSize', 'cover');
|
|
expect(style).to.have.property('padding', '5px');
|
|
expect(style).to.have.property('top', '100px');
|
|
expect(style).to.have.property('left', '100%');
|
|
|
|
root = render((
|
|
<div style={{ color: 'rgb(0, 255, 255)' }}>test</div>
|
|
), scratch, root);
|
|
|
|
expect(root).to.have.deep.property('style.cssText').that.equals('color: rgb(0, 255, 255);');
|
|
|
|
root = render((
|
|
<div style="display: inline;">test</div>
|
|
), scratch, root);
|
|
|
|
expect(root).to.have.deep.property('style.cssText').that.equals('display: inline;');
|
|
|
|
root = render((
|
|
<div style={{ backgroundColor: 'rgb(0, 255, 255)' }}>test</div>
|
|
), scratch, root);
|
|
|
|
expect(root).to.have.deep.property('style.cssText').that.equals('background-color: rgb(0, 255, 255);');
|
|
});
|
|
|
|
it('should serialize class/className', () => {
|
|
render(<div class={{
|
|
no1: false,
|
|
no2: 0,
|
|
no3: null,
|
|
no4: undefined,
|
|
no5: '',
|
|
yes1: true,
|
|
yes2: 1,
|
|
yes3: {},
|
|
yes4: [],
|
|
yes5: ' '
|
|
}} />, scratch);
|
|
|
|
let { className } = scratch.childNodes[0];
|
|
expect(className).to.be.a.string;
|
|
expect(className.split(' '))
|
|
.to.include.members(['yes1', 'yes2', 'yes3', 'yes4', 'yes5'])
|
|
.and.not.include.members(['no1', 'no2', 'no3', 'no4', 'no5']);
|
|
});
|
|
|
|
it('should support dangerouslySetInnerHTML', () => {
|
|
let html = '<b>foo & bar</b>';
|
|
let root = render(<div dangerouslySetInnerHTML={{ __html: html }} />, scratch);
|
|
|
|
expect(scratch.firstChild).to.have.property('innerHTML', html);
|
|
expect(scratch.innerHTML).to.equal('<div>'+html+'</div>');
|
|
|
|
root = render(<div>a<strong>b</strong></div>, scratch, root);
|
|
|
|
expect(scratch).to.have.property('innerHTML', `<div>a<strong>b</strong></div>`);
|
|
|
|
root = render(<div dangerouslySetInnerHTML={{ __html: html }} />, scratch, root);
|
|
|
|
expect(scratch.innerHTML).to.equal('<div>'+html+'</div>');
|
|
});
|
|
|
|
it('should reconcile mutated DOM attributes', () => {
|
|
let check = p => render(<input type="checkbox" checked={p} />, scratch, scratch.lastChild),
|
|
value = () => scratch.lastChild.checked,
|
|
setValue = p => scratch.lastChild.checked = p;
|
|
check(true);
|
|
expect(value()).to.equal(true);
|
|
check(false);
|
|
expect(value()).to.equal(false);
|
|
check(true);
|
|
expect(value()).to.equal(true);
|
|
setValue(true);
|
|
check(false);
|
|
expect(value()).to.equal(false);
|
|
setValue(false);
|
|
check(true);
|
|
expect(value()).to.equal(true);
|
|
});
|
|
|
|
it('should ignore props.children if children are manually specified', () => {
|
|
expect(
|
|
<div a children={['a', 'b']}>c</div>
|
|
).to.eql(
|
|
<div a>c</div>
|
|
);
|
|
});
|
|
|
|
it('should reorder child pairs', () => {
|
|
let root = render((
|
|
<div>
|
|
<a>a</a>
|
|
<b>b</b>
|
|
</div>
|
|
), scratch, root);
|
|
|
|
let a = scratch.firstChild.firstChild;
|
|
let b = scratch.firstChild.lastChild;
|
|
|
|
expect(a).to.have.property('nodeName', 'A');
|
|
expect(b).to.have.property('nodeName', 'B');
|
|
|
|
root = render((
|
|
<div>
|
|
<b>b</b>
|
|
<a>a</a>
|
|
</div>
|
|
), scratch, root);
|
|
|
|
expect(scratch.firstChild.firstChild).to.have.property('nodeName', 'B');
|
|
expect(scratch.firstChild.lastChild).to.have.property('nodeName', 'A');
|
|
expect(scratch.firstChild.firstChild).to.equal(b);
|
|
expect(scratch.firstChild.lastChild).to.equal(a);
|
|
});
|
|
|
|
// Discussion: https://github.com/developit/preact/issues/287
|
|
('HTMLDataListElement' in window ? it : xit)('should allow <input list /> to pass through as an attribute', () => {
|
|
render((
|
|
<div>
|
|
<input type="range" min="0" max="100" list="steplist" />
|
|
<datalist id="steplist">
|
|
<option>0</option>
|
|
<option>50</option>
|
|
<option>100</option>
|
|
</datalist>
|
|
</div>
|
|
), scratch);
|
|
|
|
let html = scratch.firstElementChild.firstElementChild.outerHTML;
|
|
expect(sortAttributes(html)).to.equal(sortAttributes('<input type="range" min="0" max="100" list="steplist">'));
|
|
});
|
|
});
|