1

所以我创建了 dotfiles 目录，然后创建了cddotfiles。但是，黄瓜 aruba 给了我一个错误，说 dotfiles 不是目录。我想不通这是为什么？pry 中的代码会导致正确的行为。

  @creation
  Scenario: Create a dotfiles git repository
    Given the directory dotfiles does not exist in the home directory
    When I successfully run `dotfiles init dotfile_one dotfile_two dotfile_three`
    Then a dotfiles directory should exist in the home directory
    When I change directory to the dotfiles directory ### Fails here ###
    Then a file named ".git" should exist

我的脚步

Given /^the directory dotfiles does not exist in the home directory$/ do
  step %(a directory named "#{ENV['HOME']}/dotfiles" should not exist)
end

Then /^a dotfiles directory should exist in the home directory$/ do
  step %(a directory named "#{ENV['HOME']}/dotfiles" should exist)
end

When /^I change directory to the dotfiles directory$/ do
  step %(I cd to "#{ENV['HOME']}/dotfiles")
end

钩前：

Before('@creation') do
  FileUtils.rm_rf(File.join(ENV['HOME'], 'dotfiles'))
end

来源

module Dotfiles
  class Repository

    def self.init(location, dotfiles)
      # create the dotfiles directory and git init
      FileUtils.chdir(location) do
        FileUtils.mkdir_p(File.join location, 'dotfiles')
      end
      FileUtils.chdir(File.join location, 'dotfiles')
    end

  end
end

错误的简短版本

When I change directory to the dotfiles directory                             # features/step_definitions/aruba_steps.rb:13
      tmp/aruba/Users/Brian/dotfiles is not a directory. (RuntimeError)

这是完整跟踪的错误

@creation
  Scenario: Create a dotfiles git repository                                      # features/dotfiles_repository.feature:6
    Given the directory dotfiles does not exist in the home directory             # features/step_definitions/aruba_steps.rb:5
    When I successfully run `dotfiles init dotfile_one dotfile_two dotfile_three` # aruba-0.5.3/lib/aruba/cucumber.rb:71
    Then a dotfiles directory should exist in the home directory                  # features/step_definitions/aruba_steps.rb:9
    When I change directory to the dotfiles directory                             # features/step_definitions/aruba_steps.rb:13
      tmp/aruba/Users/Brian/dotfiles is not a directory. (RuntimeError)
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/aruba-0.5.3/lib/aruba/api.rb:22:in `cd'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/aruba-0.5.3/lib/aruba/cucumber.rb:52:in `block in <top (required)>'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:48:in `instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:48:in `block in cucumber_instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:69:in `cucumber_run_with_backtrace_filtering'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:36:in `cucumber_instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/rb_support/rb_step_definition.rb:97:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/step_match.rb:25:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:60:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/rb_support/rb_world.rb:52:in `step'
      /Users/Brian/gems/dotfiles/features/step_definitions/aruba_steps.rb:14:in `block in <top (required)>'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:48:in `instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:48:in `block in cucumber_instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:69:in `cucumber_run_with_backtrace_filtering'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/core_ext/instance_exec.rb:36:in `cucumber_instance_exec'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/rb_support/rb_step_definition.rb:97:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/step_match.rb:25:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/step_invocation.rb:60:in `invoke'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/step_invocation.rb:38:in `accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:106:in `block in visit_step'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:105:in `visit_step'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/step_collection.rb:19:in `block in accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/step_collection.rb:18:in `each'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/step_collection.rb:18:in `accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:100:in `block in visit_steps'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:99:in `visit_steps'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:15:in `block in execute'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:82:in `block (2 levels) in with_hooks'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:98:in `before_and_after'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:81:in `block in with_hooks'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:120:in `call'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:120:in `block (3 levels) in around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/language_support/language_methods.rb:9:in `block in around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/language_support/language_methods.rb:97:in `call'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/language_support/language_methods.rb:97:in `execute_around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/language_support/language_methods.rb:8:in `around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:119:in `block (2 levels) in around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:123:in `call'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime/support_code.rb:123:in `around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:93:in `around'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:80:in `with_hooks'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:13:in `execute'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/scenario.rb:32:in `block in accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/scenario.rb:79:in `with_visitor'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/scenario.rb:31:in `accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:58:in `block in visit_feature_element'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:57:in `visit_feature_element'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/feature.rb:38:in `block in accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/feature.rb:37:in `each'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/feature.rb:37:in `accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:27:in `block in visit_feature'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:26:in `visit_feature'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/features.rb:28:in `block in accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/features.rb:17:in `each'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/features.rb:17:in `each'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/features.rb:27:in `accept'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:21:in `block in visit_features'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:170:in `broadcast'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/ast/tree_walker.rb:20:in `visit_features'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/runtime.rb:48:in `run!'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/lib/cucumber/cli/main.rb:47:in `execute!'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/gems/cucumber-1.3.4/bin/cucumber:13:in `<top (required)>'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/bin/cucumber:23:in `load'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/bin/cucumber:23:in `<main>'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/bin/ruby_noexec_wrapper:14:in `eval'
      /Users/Brian/.rvm/gems/ruby-2.0.0-p0/bin/ruby_noexec_wrapper:14:in `<main>'
      features/dotfiles_repository.feature:10:in `When I change directory to the dotfiles directory'
    Then a file named ".git" should exist                                         # aruba-0.5.3/lib/aruba/cucumber.rb:264

Failing Scenarios:
cucumber features/dotfiles_repository.feature:6 # Scenario: Create a dotfiles git repository

1 scenario (1 failed)
5 steps (1 failed, 1 skipped, 3 passed)
0m0.631s

任何人有任何解决方案或建议？如果您有任何问题，请不要犹豫。提前致谢

4

2 回答 2

0

我刚刚遇到了一个类似的问题。经过长时间的调查，这条线引起了我的注意：

tmp/aruba/Users/Brian/dotfiles is not a directory. (RuntimeError)

看看它是如何以 'tmp/aruba' 开头的？不用说，我的问题也有这个'tmp/aruba/'。如果您仔细查看github 上的自述文件，您会发现 aruba 有一个“执行文件操作的工作目录”。

当我按照那里的说明进行操作时，我可以正常工作！

于 2013-11-19T01:27:56.230 回答
0

我看到了一些我会做不同的事情。不能保证这会有所作为，但它可能会有所作为。

dotfiles从未在您的代码中使用。'dotfiles'是，那你为什么需要它作为参数呢？

def self.init(location, dotfiles)

Ruby 可以用两种方式解释这些行：

FileUtils.mkdir_p(File.join location, 'dotfiles')
FileUtils.chdir(File.join location, 'dotfiles')

请注意括号中的差异以强制在这些行中分配参数：

FileUtils.mkdir_p(File.join(location), 'dotfiles')
FileUtils.mkdir_p(File.join(location, 'dotfiles'))

FileUtils.chdir(File.join(location), 'dotfiles')
FileUtils.chdir(File.join(location, 'dotfiles'))

而不是像这样编写代码：

def self.init(location, dotfiles)
  # create the dotfiles directory and git init
  FileUtils.chdir(location) do
    FileUtils.mkdir_p(File.join location, 'dotfiles')
  end
  FileUtils.chdir(File.join location, 'dotfiles')
end

我会这样写：

def self.init(location)

  # create the dotfiles directory and git init
  FileUtils.chdir(location) do
    FileUtils.mkdir('dotfiles')
  end

  FileUtils.chdir('dotfiles')

end

尽管 Ruby 允许我们不使用括号将参数括在方法中，但这是在 Stack Overflow 上提出的无数问题的根源，因为代码无法正常工作。括号对解释器很重要，可以明确地告诉它我们真正的意思。当你不使用它们时，它会按照其正常的操作顺序并使用优先规则来尝试找出应该首先处理一行的哪一段，并且没有括号强制操作顺序，它可能会出错.

在这一点上，我们的选择是将操作移到我们将要使用其结果的位置之前，或者使用括号来明确什么时候应该发生什么。

于 2013-08-04T14:57:58.963 回答