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'use strict'
var test = require('tap').test
var util = require('util')
var stream = require('readable-stream')
var TrackerStream = require('../index.js').TrackerStream
var testEvent = require('./lib/test-event.js')
var Sink = function () {
stream.Writable.apply(this, arguments)
}
util.inherits(Sink, stream.Writable)
Sink.prototype._write = function (data, encoding, cb) {
cb()
}
test('TrackerStream', function (t) {
t.plan(9)
var name = 'test'
var track = new TrackerStream(name)
t.is(track.completed(), 0, 'Nothing todo is 0 completion')
var todo = 10
track = new TrackerStream(name, todo)
t.is(track.completed(), 0, 'Nothing done is 0 completion')
track.pipe(new Sink())
testEvent(track, 'change', afterCompleteWork)
track.write('0123456789')
function afterCompleteWork (er, onChangeName) {
t.is(er, null, 'write: on change event fired')
t.is(onChangeName, name, 'write: on change emits the correct name')
t.is(track.completed(), 1, 'write: 100% completed')
testEvent(track, 'change', afterAddWork)
track.addWork(10)
}
function afterAddWork (er, onChangeName) {
t.is(er, null, 'addWork: on change event fired')
t.is(track.completed(), 0.5, 'addWork: 50% completed')
testEvent(track, 'change', afterAllWork)
track.write('ABCDEFGHIJKLMNOPQRST')
}
function afterAllWork (er) {
t.is(er, null, 'allWork: on change event fired')
t.is(track.completed(), 1, 'allWork: 100% completed')
}
})
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