# frozen_string_literal: true require 'spec_helper' RSpec.describe 'bin/ldiff' do include CaptureSubprocessIO fixtures = [ { :name => 'output.diff', :left => 'aX', :right => 'bXaX' }, { :name => 'output.diff.chef', :left => 'old-chef', :right => 'new-chef' }, { :name => 'output.diff.chef2', :left => 'old-chef2', :right => 'new-chef2' } ].product([nil, '-e', '-f', '-c', '-u']).map { |(fixture, flag)| fixture = fixture.dup fixture[:flag] = flag fixture } def self.test_ldiff(fixture) desc = [ fixture[:flag], "spec/fixtures/#{fixture[:left]}", "spec/fixtures/#{fixture[:right]}", '#', '=>', "spec/fixtures/ldiff/#{fixture[:name]}#{fixture[:flag]}" ].join(' ') it desc do expect(run_ldiff(fixture)).to eq(read_fixture(fixture)) end end fixtures.each do |fixture| test_ldiff(fixture) end def read_fixture(options) fixture = options.fetch(:name) flag = options.fetch(:flag) name = "spec/fixtures/ldiff/#{fixture}#{flag}" data = IO.__send__(IO.respond_to?(:binread) ? :binread : :read, name) clean_data(data, flag) end def clean_data(data, flag) data = case flag when '-c', '-u' clean_output_timestamp(data) else data end data.gsub(/\r\n?/, "\n") end def clean_output_timestamp(data) data.gsub( %r{ ^ [-+*]{3} \s* spec/fixtures/(\S+) \s* \d{4}-\d\d-\d\d \s* \d\d:\d\d:\d\d(?:\.\d+) \s* (?:[-+]\d{4}|Z) }x, '*** spec/fixtures/\1 0000-00-00 :00 =>:00 =>00.000000000 -0000' ) end def run_ldiff(options) flag = options.fetch(:flag) left = options.fetch(:left) right = options.fetch(:right) stdout, stderr = capture_subprocess_io do system("ruby -Ilib bin/ldiff #{flag} spec/fixtures/#{left} spec/fixtures/#{right}") end expect(stderr).to be_empty if RUBY_VERSION >= '1.9' expect(stdout).not_to be_empty clean_data(stdout, flag) end end