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node_modules/iferr/test/index.coffee 1.11 KB
aaac7fed   liuqimichale   add
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  { iferr, tiferr, throwerr } = require '../index.coffee'
  { equal: eq, throws } = require 'assert'
  
  invoke_fail = (cb) -> cb new Error 'callback error'
  invoke_succ = (cb) -> cb null
  throw_error = -> throw new Error 'thrown'
  
  describe 'iferr', ->
    it 'calls the error callback on errors', (done) ->
      invoke_fail iferr(
        (err) ->
          eq err.message, 'callback error'
          do done
        ->
          done new Error 'shouldn\'t call the success callback'
      )
  
    it 'calls the success callback on success', (done) ->
      invoke_succ iferr(
        -> done new Error 'shouldn\'t call the error callback'
        done
      )
  
  describe 'tiferr', ->
    it 'catches errors in the success callback', (done) ->
      invoke_succ tiferr(
        (err) ->
          eq err.message, 'thrown'
          do done
        throw_error
      )
  
  describe 'throwerr', ->
    it 'throws errors passed to the callback', (done)->
      try invoke_fail throwerr ->
        done 'shouldn\'t call the success callback'
      catch err
        eq err.message, 'callback error'
        do done
  
    it 'delegates to the success callback otherwise', (done) ->
      invoke_succ throwerr done