88 lines
2 KiB
JavaScript
88 lines
2 KiB
JavaScript
"use strict"
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var o = require("../../ospec/ospec")
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var domMock = require("../../test-utils/domMock")
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var vdom = require("../../render/render")
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o.spec("render", function() {
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var $window, root, render
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o.beforeEach(function() {
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$window = domMock()
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root = $window.document.createElement("div")
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render = vdom($window).render
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})
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o("overwrites existing content", function() {
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var vnodes = []
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root.appendChild($window.document.createElement("div"));
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render(root, vnodes)
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o(root.childNodes.length).equals(0)
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})
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o("throws on invalid root node", function() {
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var threw = false
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try {
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render(null, [])
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} catch (e) {
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threw = true
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}
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o(threw).equals(true)
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})
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o("does not enter infinite loop when oninit triggers render and view throws", function(done) {
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var A = {
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oninit: init,
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view: function() {throw new Error("error")}
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}
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function run() {
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render(root, {tag: A})
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}
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function init() {
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setTimeout(function() {
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var threwInner = false
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try {run()} catch (e) {threwInner = true}
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o(threwInner).equals(false)
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done()
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}, 0)
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}
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var threwOuter = false
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try {run()} catch (e) {threwOuter = true}
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o(threwOuter).equals(true)
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})
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o("lifecycle methods work in children of recycled", function() {
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var createA = o.spy()
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var updateA = o.spy()
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var removeA = o.spy()
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var createB = o.spy()
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var updateB = o.spy()
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var removeB = o.spy()
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var a = function() {
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return {tag: "div", key: 1, children: [
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{tag: "div", key: 11, attrs: {oncreate: createA, onupdate: updateA, onremove: removeA}},
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{tag: "div", key: 12}
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]}
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}
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var b = function() {
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return {tag: "div", key: 2, children: [
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{tag: "div", key: 21, attrs: {oncreate: createB, onupdate: updateB, onremove: removeB}},
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{tag: "div", key: 22}
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]}
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}
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render(root, a())
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render(root, b())
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render(root, a())
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o(createA.callCount).equals(2)
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o(updateA.callCount).equals(0)
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o(removeA.callCount).equals(1)
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o(createB.callCount).equals(1)
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o(updateB.callCount).equals(0)
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o(removeB.callCount).equals(1)
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})
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})
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