问题
So I create the dotfiles directory and then cd to dotfiles. However, cucumber aruba is giving me an error that says dotfiles is not a directory. I can't figure out why this is? the code in pry results in the correct behavior.
@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
my steps
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
before hook:
Before('@creation') do
FileUtils.rm_rf(File.join(ENV['HOME'], 'dotfiles'))
end
the source
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
Short version of error
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)
Here is the error with full trace
@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
Anyone have any solutions or suggestions? Don't hesitate to ask if you have a question. Thanks in advance
回答1:
I see a couple things that I would do differently. There's no guarantee that this will make a difference, but it might.
dotfiles is never used in your code. 'dotfiles' is, so why do you require it as a parameter?
def self.init(location, dotfiles)
Ruby can interpret these lines two ways:
FileUtils.mkdir_p(File.join location, 'dotfiles')
FileUtils.chdir(File.join location, 'dotfiles')
Notice the difference in parenthesis to force parameter assignment in these lines:
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'))
Instead of writing your code like:
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
I'd write it like this instead:
def self.init(location)
# create the dotfiles directory and git init
FileUtils.chdir(location) do
FileUtils.mkdir('dotfiles')
end
FileUtils.chdir('dotfiles')
end
Although Ruby allows us to not use parenthesis to surround parameters to a method, that is the source of untold many questions asked on Stack Overflow because code won't work. Parenthesis are important to the interpreter, to explicitely tell it what we really mean. When you don't use them, it will follow its normal order of operations and use rules of precendence to try to figure out what section of a line should be processed first, and without the parenthesis to force order of operation, it can make mistakes.
Our choice, at that point, is to either move the operation ahead of where we're going to use its result, or use parenthesis to make it clear what should happen when.
回答2:
I just ran with a similiar problem. After a long time of investigation this line caught my attention:
tmp/aruba/Users/Brian/dotfiles is not a directory. (RuntimeError)
See how it begins with 'tmp/aruba'? Needless to say, my problem also had this 'tmp/aruba/' on it. If you look at the readme at github closely enough you will find out that aruba has a "working directory where it performs its file operations".
When I followed the instructions there I got it working alright!
来源：https://stackoverflow.com/questions/18009241/cucumber-aruba-trying-to-change-directory-results-in-a-strange-error