120 lines
2.9 KiB
JavaScript
120 lines
2.9 KiB
JavaScript
'use strict'
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const chai = require('chai')
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const dirtyChai = require('dirty-chai')
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const { deprecations, deprecate } = require('electron')
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const { expect } = chai
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chai.use(dirtyChai)
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describe('deprecations', () => {
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beforeEach(() => {
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deprecations.setHandler(null)
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process.throwDeprecation = true
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})
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it('allows a deprecation handler function to be specified', () => {
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const messages = []
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deprecations.setHandler(message => {
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messages.push(message)
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})
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deprecate.log('this is deprecated')
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expect(messages).to.deep.equal(['this is deprecated'])
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})
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it('returns a deprecation handler after one is set', () => {
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const messages = []
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deprecations.setHandler(message => {
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messages.push(message)
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})
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deprecate.log('this is deprecated')
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expect(deprecations.getHandler()).to.be.a('function')
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})
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it('renames a property', () => {
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let msg
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deprecations.setHandler(m => { msg = m })
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const oldProp = 'dingyOldName'
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const newProp = 'shinyNewName'
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let value = 0
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const o = { [newProp]: value }
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expect(o).to.not.have.a.property(oldProp)
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expect(o).to.have.a.property(newProp).that.is.a('number')
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deprecate.renameProperty(o, oldProp, newProp)
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o[oldProp] = ++value
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expect(msg).to.be.a('string')
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expect(msg).to.include(oldProp)
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expect(msg).to.include(newProp)
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expect(o).to.have.a.property(newProp).that.is.equal(value)
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expect(o).to.have.a.property(oldProp).that.is.equal(value)
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})
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it('doesn\'t deprecate a property not on an object', () => {
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const o = {}
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expect(() => {
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deprecate.removeProperty(o, 'iDoNotExist')
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}).to.throw(/iDoNotExist/)
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})
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it('deprecates a property of an object', () => {
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let msg
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deprecations.setHandler(m => { msg = m })
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const prop = 'itMustGo'
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const o = { [prop]: 0 }
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deprecate.removeProperty(o, prop)
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const temp = o[prop]
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expect(temp).to.equal(0)
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expect(msg).to.be.a('string')
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expect(msg).to.include(prop)
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})
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it('warns only once per item', () => {
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const messages = []
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deprecations.setHandler(message => { messages.push(message) })
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const key = 'foo'
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const val = 'bar'
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const o = { [key]: val }
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deprecate.removeProperty(o, key)
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for (let i = 0; i < 3; ++i) {
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expect(o[key]).to.equal(val)
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expect(messages).to.have.length(1)
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}
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})
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it('warns if deprecated property is already set', () => {
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let msg
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deprecations.setHandler(m => { msg = m })
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const oldProp = 'dingyOldName'
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const newProp = 'shinyNewName'
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const o = { [oldProp]: 0 }
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deprecate.renameProperty(o, oldProp, newProp)
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expect(msg).to.be.a('string')
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expect(msg).to.include(oldProp)
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expect(msg).to.include(newProp)
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})
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it('throws an exception if no deprecation handler is specified', () => {
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expect(() => {
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deprecate.log('this is deprecated')
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}).to.throw(/this is deprecated/)
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})
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})
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