mecano/test/promise.actions.coffee

Common functions for system deployment.

mecano = require '../src'
test = require './test'
fs = require 'fs'

describe 'promise actions', ->

  scratch = test.scratch @

  describe 'handler', ->

    it 'register actions in callback', (next) ->
      msgs = []
      m = mecano log: (msg) -> msgs.push msg if /\/file_\d/.test msg
      m
      .write
        destination: "#{scratch}/a_file"
        content: 'abc'
      , (err, written) ->
        return next err if err
        m.write
          destination: "#{scratch}/a_file"
          content: 'def'
          append: true
        , (err, written) ->
          # ok
      .write
        destination: "#{scratch}/a_file"
        content: 'hij'
        append: true
      .then (err, changed) ->
        return next err if err
        fs.readFile "#{scratch}/a_file", 'ascii', (err, content) ->
          return next err if err
          content.should.eql 'abcdefhij'
          next()

    it 'can throw error', (next) ->
      # msgs = []
      # m = mecano log: (msg) -> msgs.push msg if /\/file_\d/.test msg
      mecano()
      .write
        destination: "#{scratch}/a_file"
        content: 'abc'
      , (err, written) ->
        throw Error 'Catchme'
      .write
        invalid: true
      .then (err, changed) ->
        err.message.should.eql 'Catchme'
        next()

  describe 'error', ->

    it 'throw in sync action', (next) ->
      m = mecano()
      m.register 'anaction', (options, callback) ->
        throw Error 'Catchme'
      m
      .anaction
        key: "value"
      , (err, written) ->
        err.message.should.eql 'Catchme'
      .then (err, changed) ->
        err.message.should.eql 'Catchme'
        next()

    it 'throw in async action', (next) ->
      m = mecano()
      m.register 'anaction', (options, callback) ->
        setImmediate -> callback Error 'Catchme'
      m
      .anaction
        key: "value"
      , (err, written) ->
        err.message.should.eql 'Catchme'
      .then (err, changed) ->
        err.message.should.eql 'Catchme'
        next()