cli_test.rb

require 'rbconfig'

module CLITest
 class << self
 BIN_DIR = RbConfig::CONFIG['bindir']

 DASH = "\u2500".dup.force_encoding 'utf-8'

 def chk_cli(cmd, regex)
 cmd_str = cmd[/\A[^ ]+/].ljust(10)
 cmd_path = "#{BIN_DIR}/#{cmd_str}".strip
 if File.exist? cmd_path.strip
 if RUBY_PLATFORM[/mingw|mswin/]
 unless File.exist?("#{cmd_path}.bat") || File.exist?("#{cmd_path}.cmd")
 return "#{cmd_str}❌ missing windows binstub"
 end
 end
 require 'open3'
 ret = ''.dup
 Open3.popen3(cmd) {|stdin, stdout, stderr, wait_thr|
 ret = stdout.read.strip
 ret = stderr.read.strip if ret.empty?
 }
 if ret[regex]
 "#{cmd_str}✅ #{$1}"
 else
 @error += 1
 "#{cmd_str}❌ version?"
 end
 else
 @error += 1
 "#{cmd_str}❌ missing binstub"
 end
 rescue => e
 @error += 1
 "#{cmd_str}❌ #{e.class} #{e.message}"
 end

 def run
 re_version = '(\d{1,2}\.\d{1,2}\.\d{1,2}(\.[a-z0-9.]+)?)'
 @error = 0
 puts "\n#{DASH * 5} CLI Test #{DASH * 17}"
 puts chk_cli("bundle -v", /\A(?:Bundler version )?#{re_version}/)
 puts chk_cli("erb --version", /\A#{re_version}/)
 puts chk_cli("gem --version", /\A#{re_version}/)
 puts chk_cli("irb --version", /\Airb +#{re_version}/)
 puts chk_cli("racc --version", /\Aracc version #{re_version}/)
 puts chk_cli("rake -V", /\Arake, version #{re_version}/)
 puts chk_cli("rbs -v" , /\Arbs #{re_version}/)
 puts chk_cli("rdbg -v", /\Ardbg #{re_version}/)
 puts chk_cli("rdoc -v", /\A#{re_version}/)
 puts chk_cli("test-unit --version", /\A(?:test-unit )?#{re_version}/)
 puts chk_cli("typeprof --version", /#{re_version}\z/)
 puts ''

 cli_desc = %x[ruby -v].strip
 if cli_desc == RUBY_DESCRIPTION
 puts cli_desc, ''
 else
 puts "'ruby -v' doesn't match RUBY_DESCRIPTION\n" \
 "#{cli_desc} (ruby -v)\n" \
 "#{RUBY_DESCRIPTION} (RUBY_DESCRIPTION)", ''
 @error += 1
 end

 unless @error.zero?
 puts "bad exit"
 exit 1
 end
 end
 end
end
CLITest.run