Given(/^a file located at "(.*?)"$/) do |filepath|
  expect(File).to exist(filepath)
end

Given(/^an empty file located at "(.*?)"$/) do |filepath|
  FileUtils.touch(File.expand_path(filepath))
end

Given(/^a file located at "(.*?)" with the contents:$/) do |filepath, contents|
  File.open(filepath, 'w') { |f| f.write(contents) }
end

Given(/^no file located at "(.*?)"$/) do |filepath|
  step %(the file "#{ filepath }" should not exist)
end

When /^I get help for "([^"]*)"$/ do |app_name|
  step %(I run `#{app_name} --help`)
end