extension/test/utils.coffee

   1 ###
   2 # Copyright Simon Lydell 2015, 2016.
   3 #
   4 # This file is part of VimFx.
   5 #
   6 # VimFx is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # VimFx is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with VimFx.  If not, see <http://www.gnu.org/licenses/>.
  18 ###
  19
  20 # This file provides some handy helpers for testing.
  21
  22 Vim = require('../lib/vim')
  23
  24 stub = (obj, method, fn) ->
  25   originalFn = obj[method]
  26   obj[method] = fn
  27   return -> obj[method] = originalFn
  28
  29 throws = (assert, regex, badValue, fn) ->
  30   assert.throws(fn)
  31   try fn() catch error
  32     assert.ok(error.message.startsWith('VimFx:'), 'start with VimFx')
  33     assert.ok(error.message.endsWith(": #{badValue}"), 'show bad value')
  34     assert.ok(regex.test(error.message), 'regex match')
  35
  36 class MockMessageManager
  37   constructor: ->
  38     @sendAsyncMessageCalls      = 0
  39     @addMessageListenerCalls    = 0
  40     @removeMessageListenerCalls = 0
  41
  42   sendAsyncMessage:      -> @sendAsyncMessageCalls++
  43   addMessageListener:    -> @addMessageListenerCalls++
  44   removeMessageListener: -> @removeMessageListenerCalls++
  45
  46 class MockVim extends Vim
  47   constructor: (@_messageManager = null) ->
  48
  49 module.exports = {
  50   stub
  51   throws
  52   MockMessageManager
  53   MockVim
  54 }