2020-05-26 18:17:24 +02:00

698 lines
16 KiB
JavaScript

"use strict"
var o = require("../../ospec/ospec")
var domMock = require("../../test-utils/domMock")
var vdom = require("../../render/render")
o.spec("component", function() {
var $window, root, render
o.beforeEach(function() {
$window = domMock()
root = $window.document.createElement("div")
render = vdom($window).render
})
o.spec("basics", function() {
o("works", function() {
var component = {
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
var node = {tag: component}
render(root, [node])
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("receives arguments", function() {
var component = {
view: function(vnode) {
return {tag: "div", attrs: vnode.attrs, text: vnode.text}
}
}
var node = {tag: component, attrs: {id: "a"}, text: "b"}
render(root, [node])
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("updates", function() {
var component = {
view: function(vnode) {
return {tag: "div", attrs: vnode.attrs, text: vnode.text}
}
}
render(root, [{tag: component, attrs: {id: "a"}, text: "b"}])
render(root, [{tag: component, attrs: {id: "c"}, text: "d"}])
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("c")
o(root.firstChild.firstChild.nodeValue).equals("d")
})
o("updates root from null", function() {
var visible = false
var component = {
view: function(vnode) {
return visible ? {tag: "div"} : null
}
}
render(root, [{tag: component}])
visible = true
render(root, [{tag: component}])
o(root.firstChild.nodeName).equals("DIV")
})
o("updates root from primitive", function() {
var visible = false
var component = {
view: function(vnode) {
return visible ? {tag: "div"} : false
}
}
render(root, [{tag: component}])
visible = true
render(root, [{tag: component}])
o(root.firstChild.nodeName).equals("DIV")
})
o("updates root to null", function() {
var visible = true
var component = {
view: function(vnode) {
return visible ? {tag: "div"} : null
}
}
render(root, [{tag: component}])
visible = false
render(root, [{tag: component}])
o(root.childNodes.length).equals(0)
})
o("updates root to primitive", function() {
var visible = true
var component = {
view: function(vnode) {
return visible ? {tag: "div"} : false
}
}
render(root, [{tag: component}])
visible = false
render(root, [{tag: component}])
o(root.firstChild.nodeValue).equals("")
})
o("updates root from null to null", function() {
var component = {
view: function(vnode) {
return null
}
}
render(root, [{tag: component}])
render(root, [{tag: component}])
o(root.childNodes.length).equals(0)
})
o("removes", function() {
var component = {
view: function(vnode) {
return {tag: "div"}
}
}
var div = {tag: "div", key: 2}
render(root, [{tag: component, key: 1}, div])
render(root, [{tag: "div", key: 2}])
o(root.childNodes.length).equals(1)
o(root.firstChild).equals(div.dom)
})
o("svg works when creating across component boundary", function() {
var component = {
view: function(vnode) {
return {tag: "g"}
}
}
render(root, [{tag: "svg", children: [{tag: component}]}])
o(root.firstChild.firstChild.namespaceURI).equals("http://www.w3.org/2000/svg")
})
o("svg works when updating across component boundary", function() {
var component = {
view: function(vnode) {
return {tag: "g"}
}
}
render(root, [{tag: "svg", children: [{tag: component}]}])
render(root, [{tag: "svg", children: [{tag: component}]}])
o(root.firstChild.firstChild.namespaceURI).equals("http://www.w3.org/2000/svg")
})
})
o.spec("return value", function() {
o("can return fragments", function() {
var component = {
view: function(vnode) {
return [
{tag: "label"},
{tag: "input"},
]
}
}
render(root, [{tag: component}])
o(root.childNodes.length).equals(2)
o(root.childNodes[0].nodeName).equals("LABEL")
o(root.childNodes[1].nodeName).equals("INPUT")
})
o("can return string", function() {
var component = {
view: function(vnode) {
return "a"
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("a")
})
o("can return falsy string", function() {
var component = {
view: function(vnode) {
return ""
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("")
})
o("can return number", function() {
var component = {
view: function(vnode) {
return 1
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("1")
})
o("can return falsy number", function() {
var component = {
view: function(vnode) {
return 0
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("0")
})
o("can return boolean", function() {
var component = {
view: function(vnode) {
return true
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("true")
})
o("can return falsy boolean", function() {
var component = {
view: function(vnode) {
return false
}
}
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("")
})
o("can return null", function() {
var component = {
view: function(vnode) {
return null
}
}
render(root, [{tag: component}])
o(root.childNodes.length).equals(0)
})
o("can return undefined", function() {
var component = {
view: function(vnode) {
return undefined
}
}
render(root, [{tag: component}])
o(root.childNodes.length).equals(0)
})
o("throws a custom error if it returns itself", function() {
// A view that returns its vnode would otherwise trigger an infinite loop
var component = {
view: function(vnode) {
return vnode
}
}
try {
render(root, [{tag: component}])
}
catch (e) {
o(e instanceof Error).equals(true)
// Call stack exception is a RangeError
o(e instanceof RangeError).equals(false)
}
})
o("can update when returning fragments", function() {
var component = {
view: function(vnode) {
return [
{tag: "label"},
{tag: "input"},
]
}
}
render(root, [{tag: component}])
render(root, [{tag: component}])
o(root.childNodes.length).equals(2)
o(root.childNodes[0].nodeName).equals("LABEL")
o(root.childNodes[1].nodeName).equals("INPUT")
})
o("can update when returning primitive", function() {
var component = {
view: function(vnode) {
return "a"
}
}
render(root, [{tag: component}])
render(root, [{tag: component}])
o(root.firstChild.nodeType).equals(3)
o(root.firstChild.nodeValue).equals("a")
})
o("can update when returning null", function() {
var component = {
view: function(vnode) {
return null
}
}
render(root, [{tag: component}])
render(root, [{tag: component}])
o(root.childNodes.length).equals(0)
})
o("can remove when returning fragments", function() {
var component = {
view: function(vnode) {
return [
{tag: "label"},
{tag: "input"},
]
}
}
var div = {tag: "div", key: 2}
render(root, [{tag: component, key: 1}, div])
render(root, [{tag: "div", key: 2}])
o(root.childNodes.length).equals(1)
o(root.firstChild).equals(div.dom)
})
o("can remove when returning primitive", function() {
var component = {
view: function(vnode) {
return "a"
}
}
var div = {tag: "div", key: 2}
render(root, [{tag: component, key: 1}, div])
render(root, [{tag: "div", key: 2}])
o(root.childNodes.length).equals(1)
o(root.firstChild).equals(div.dom)
})
})
o.spec("lifecycle", function() {
o("calls oninit", function() {
var called = 0
var component = {
oninit: function(vnode) {
called++
o(vnode.tag).equals(component)
o(vnode.dom).equals(undefined)
o(root.childNodes.length).equals(0)
},
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
var node = {tag: component}
render(root, [node])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("calls oninit when returning fragment", function() {
var called = 0
var component = {
oninit: function(vnode) {
called++
o(vnode.tag).equals(component)
o(vnode.dom).equals(undefined)
o(root.childNodes.length).equals(0)
},
view: function() {
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
}
}
var node = {tag: component}
render(root, [node])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("calls oninit before view", function() {
var viewCalled = false
render(root, {
tag: {
view: function() {
viewCalled = true
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
},
oninit: function(vnode) {
o(viewCalled).equals(false)
},
}
})
})
o("does not calls oninit on redraw", function() {
var init = o.spy()
var component = {
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
},
oninit: init,
}
function view() {
return {tag: component}
}
render(root, view())
render(root, view())
o(init.callCount).equals(1)
})
o("calls oncreate", function() {
var called = 0
var component = {
oncreate: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
var node = {tag: component}
render(root, [node])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("does not calls oncreate on redraw", function() {
var create = o.spy()
var component = {
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
},
oncreate: create,
}
function view() {
return {tag: component}
}
render(root, view())
render(root, view())
o(create.callCount).equals(1)
})
o("calls oncreate when returning fragment", function() {
var called = 0
var component = {
oncreate: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
}
}
var node = {tag: component}
render(root, [node])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("calls onupdate", function() {
var called = 0
var component = {
onupdate: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [{tag: component}])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("calls onupdate when returning fragment", function() {
var called = 0
var component = {
onupdate: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [{tag: component}])
o(called).equals(1)
o(root.firstChild.nodeName).equals("DIV")
o(root.firstChild.attributes["id"].nodeValue).equals("a")
o(root.firstChild.firstChild.nodeValue).equals("b")
})
o("calls onremove", function() {
var called = 0
var component = {
onremove: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [])
o(called).equals(1)
o(root.childNodes.length).equals(0)
})
o("calls onremove when returning fragment", function() {
var called = 0
var component = {
onremove: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [])
o(called).equals(1)
o(root.childNodes.length).equals(0)
})
o("calls onbeforeremove", function() {
var called = 0
var component = {
onbeforeremove: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return {tag: "div", attrs: {id: "a"}, text: "b"}
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [])
o(called).equals(1)
o(root.childNodes.length).equals(0)
})
o("calls onbeforeremove when returning fragment", function() {
var called = 0
var component = {
onbeforeremove: function(vnode) {
called++
o(vnode.dom).notEquals(undefined)
o(vnode.dom).equals(root.firstChild)
o(root.childNodes.length).equals(1)
},
view: function() {
return [{tag: "div", attrs: {id: "a"}, text: "b"}]
}
}
render(root, [{tag: component}])
o(called).equals(0)
render(root, [])
o(called).equals(1)
o(root.childNodes.length).equals(0)
})
o("does not recycle when there's an onupdate", function() {
var component = {
onupdate: function() {},
view: function() {
return {tag: "div"}
}
}
var update = o.spy()
var vnode = {tag: component, key: 1}
var updated = {tag: component, key: 1}
render(root, [vnode])
render(root, [])
render(root, [updated])
o(vnode.dom).notEquals(updated.dom)
})
})
o.spec("state", function() {
o("copies state", function() {
var called = 0
var data = {a: 1}
var component = {
data: data,
oninit: init,
view: function() {
return ""
}
}
render(root, [{tag: component}])
function init(vnode) {
o(vnode.state.data).deepEquals(data)
o(vnode.state.data).equals(data)
//inherits state via prototype
component.x = 1
o(vnode.state.x).equals(1)
}
})
o("state copy is shallow", function() {
var called = 0
var body = {a: 1}
var data = [body]
var component = {
data: data,
oninit: init,
view: function() {
return ""
}
}
render(root, [{tag: component}])
function init(vnode) {
o(vnode.state.data).equals(data)
o(vnode.state.data[0]).equals(body)
}
})
})
})