wallet-core/node_modules/domain-browser/test.js
2017-05-03 15:35:00 +02:00

101 lines
2.5 KiB
JavaScript

/* eslint handle-callback-err:0, no-magic-numbers:0, no-unused-vars:0 */
'use strict'
// Import
const events = require('events')
const equal = require('assert-helpers').equal
const joe = require('joe')
const domain = require('./')
// =====================================
// Tests
joe.describe('domain-browser', function (describe, it) {
it('should work on throws', function (done) {
const d = domain.create()
d.on('error', function (err) {
equal(err && err.message, 'a thrown error', 'error message')
done()
})
d.run(function () {
throw new Error('a thrown error')
})
})
it('should be able to add emitters', function (done) {
const d = domain.create()
const emitter = new events.EventEmitter()
d.add(emitter)
d.on('error', function (err) {
equal(err && err.message, 'an emitted error', 'error message')
done()
})
emitter.emit('error', new Error('an emitted error'))
})
it('should be able to remove emitters', function (done) {
const emitter = new events.EventEmitter()
const d = domain.create()
let domainGotError = false
d.add(emitter)
d.on('error', function (err) {
domainGotError = true
})
emitter.on('error', function (err) {
equal(err && err.message, 'This error should not go to the domain', 'error message')
// Make sure nothing race condition-y is happening
setTimeout(function () {
equal(domainGotError, false, 'no domain error')
done()
}, 0)
})
d.remove(emitter)
emitter.emit('error', new Error('This error should not go to the domain'))
})
it('bind should work', function (done) {
const d = domain.create()
d.on('error', function (err) {
equal(err && err.message, 'a thrown error', 'error message')
done()
})
d.bind(function (err, a, b) {
equal(err && err.message, 'a passed error', 'error message')
equal(a, 2, 'value of a')
equal(b, 3, 'value of b')
throw new Error('a thrown error')
})(new Error('a passed error'), 2, 3)
})
it('intercept should work', function (done) {
const d = domain.create()
let count = 0
d.on('error', function (err) {
if ( count === 0 ) {
equal(err && err.message, 'a thrown error', 'error message')
}
else if ( count === 1 ) {
equal(err && err.message, 'a passed error', 'error message')
done()
}
count++
})
d.intercept(function (a, b) {
equal(a, 2, 'value of a')
equal(b, 3, 'value of b')
throw new Error('a thrown error')
})(null, 2, 3)
d.intercept(function (a, b) {
throw new Error('should never reach here')
})(new Error('a passed error'), 2, 3)
})
})