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snabbdom/test/attachto.js

99 lines
2.8 KiB
JavaScript

var assert = require('assert');
var snabbdom = require('../snabbdom');
var patch = snabbdom.init([]);
var attachTo = require('../helpers/attachto').default;
var h = require('../h').default;
describe('attachTo', function() {
var elm, vnode0;
beforeEach(function() {
elm = document.createElement('div');
vnode0 = elm;
});
it('adds element to target', function() {
var vnode1 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', 'Test')),
]),
]);
elm = patch(vnode0, vnode1).elm;
assert.equal(elm.children.length, 2);
});
it('updates element at target', function() {
var vnode1 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', 'First text')),
]),
]);
var vnode2 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', 'New text')),
]),
]);
elm = patch(vnode0, vnode1).elm;
assert.equal(elm.children[0].innerHTML, 'First text');
elm = patch(vnode1, vnode2).elm;
assert.equal(elm.children[0].innerHTML, 'New text');
});
it('element can be inserted before modal', function() {
var vnode1 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', 'Text')),
]),
]);
var vnode2 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
h('div', 'A new element'),
attachTo(elm, h('div#attached', 'Text')),
]),
]);
elm = patch(vnode0, vnode1).elm;
assert.equal(elm.children[0].innerHTML, 'Text');
elm = patch(vnode1, vnode2).elm;
assert.equal(elm.children[0].innerHTML, 'Text');
});
it('removes element at target', function() {
var vnode1 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', 'First text')),
]),
]);
var vnode2 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
]),
]);
elm = patch(vnode0, vnode1).elm;
assert.equal(elm.children[0].innerHTML, 'First text');
elm = patch(vnode1, vnode2).elm;
assert.equal(elm.children.length, 1);
});
it('remove hook receives real element', function() {
function rm(vnode, cb) {
assert.equal(vnode.elm.tagName, 'DIV');
assert.equal(vnode.elm.innerHTML, 'First text');
cb();
}
var vnode1 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
attachTo(elm, h('div#attached', {hook: {remove: rm}}, 'First text')),
]),
]);
var vnode2 = h('div', [
h('div#wrapper', [
h('div', 'Some element'),
]),
]);
elm = patch(vnode0, vnode1).elm;
elm = patch(vnode1, vnode2).elm;
});
});