run individual tests to your <3s delight

gistfile1.rb

#!/usr/bin/env ruby

def rake_test_loader_path
  "/usr/local/rvm/gems/ruby-1.9.2-p0@global/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"
end

def test_cmd_pre
  %|ruby -I'lib:test' '#{rake_test_loader_path}' |
end

unless File.directory?("test")
  raise "couldn't find a test directory. sure you're in an app directory?"
end

unless File.exist?(rake_test_loader_path)
  raise "couldn't find rake test loader at #{rake_test_loader_path}. did you define this in the script?"
end

if ARGV.empty?
  puts "usage: rtest [-v] test_file_path test_name [test_name ...]"
  puts "       rtest [-v] test_file_path [test_file_path ...]"
  puts "-v option for verbose test mode: prints the name, execution time and result of each test as it runs."
  puts "file globs will run all matching files, e.g. test/unit/ticket_*.rb"
  exit
end

# verbose mode
test_opts = (ARGV.first == '-v' ? ARGV.shift : '')
cmd = test_cmd_pre + ARGV.first + " #{test_opts}"

if ARGV.length > 1 # given a filename with a list of individual tests or several test files to run.
  if ARGV.all?{|arg| File.exist?(arg)}
    # given a list of test files to run
    # rake doesn't seem to have a convenient way to do this and passing args to rake is a PITA
    puts "Testing several files:\n#{ARGV.join("\n")}"
    cmd = test_cmd_pre + %|"#{ARGV.join('" "')}" #{test_opts}|
  else
    test_file = ARGV.shift
    puts "Running individual test cases"
    test_names = []
    while (test_name = ARGV.shift) do
      test_names << Regexp.escape(test_name)
    end
    puts test_names.join("\n")
    cmd = test_cmd_pre + "'#{test_file}' --name='/#{test_names.join('|')}/' #{test_opts}"
  end
end
puts cmd
exec cmd