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require 'bundler'
require 'appraisal'
module Tests
class CurrentBundle
AppraisalNotSpecified = Class.new(ArgumentError)
include Singleton
def assert_appraisal!
unless appraisal_in_use?
message = <<MSG
Please run tests starting with `appraisal <appraisal_name>`.
Possible appraisals are: #{available_appraisals}
MSG
raise AppraisalNotSpecified, message
end
end
def appraisal_in_use?
path.dirname == root.join('gemfiles')
end
def current_or_latest_appraisal
current_appraisal || latest_appraisal
end
def latest_appraisal
available_appraisals.max
end
private
def available_appraisals
appraisals = []
Appraisal::AppraisalFile.each do |appraisal|
appraisals << appraisal.name
end
appraisals
end
def current_appraisal
if appraisal_in_use?
File.basename(path, '.gemfile')
end
end
def path
Bundler.default_gemfile
end
def root
Pathname.new('../../..').expand_path(__FILE__)
end
end
end
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