c71e8f4fcb
When JSON serializing m.prop, check if wrapped object does define toJSON method and if so, return it's result.
80 lines
1.9 KiB
JavaScript
80 lines
1.9 KiB
JavaScript
describe("m.prop()", function () {
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"use strict"
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it("reads correct value", function () {
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var prop = m.prop("test")
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expect(prop()).to.equal("test")
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})
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it("defaults to `undefined`", function () {
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var prop = m.prop()
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expect(prop()).to.be.undefined
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})
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it("sets the correct value", function () {
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var prop = m.prop("test")
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prop("foo")
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expect(prop()).to.equal("foo")
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})
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it("sets `null`", function () {
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var prop = m.prop(null)
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expect(prop()).to.be.null
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})
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it("sets `undefined`", function () {
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var prop = m.prop(undefined)
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expect(prop()).to.be.undefined
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})
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it("returns the new value when set", function () {
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var prop = m.prop()
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expect(prop("foo")).to.equal("foo")
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})
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it("correctly stringifies to the correct value", function () {
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var prop = m.prop("test")
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expect(JSON.stringify(prop)).to.equal('"test"')
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})
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it("correctly stringifies to the correct value as a child", function () {
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var obj = {prop: m.prop("test")}
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expect(JSON.stringify(obj)).to.equal('{"prop":"test"}')
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})
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it("correctly stringifies Date", function () {
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var prop = m.prop(new Date(999))
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expect(JSON.stringify(prop)).to.equal('"1970-01-01T00:00:00.999Z"')
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})
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it("correctly stringifies object with toJSON method", function () {
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function Thing(name) {
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this.name = name
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}
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Thing.prototype.toJSON = function() {
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return {kind: 'Thing', name: this.name}
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}
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var banana = m.prop(new Thing("bannana"))
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expect(JSON.stringify(banana)).to.equal('{"kind":"Thing","name":"bannana"}')
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})
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it("correctly wraps Mithril promises", function () {
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var defer = m.deferred()
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var prop = m.prop(defer.promise)
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defer.resolve("test")
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expect(prop()).to.equal("test")
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})
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it("returns a thenable when wrapping a Mithril promise", function () {
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var defer = m.deferred()
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var prop = m.prop(defer.promise).then(function () {
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return "test2"
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})
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defer.resolve("test")
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expect(prop()).to.equal("test2")
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})
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})
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