Guard::Vagrant + Guard::PhpUnit

Guardfile

guard :vagrant, :cwd => '/custom/cwd'

guard :phpunit, :vagrant => true do
  watch %r{^website/application/(.+)\.php}
  watch %r{^website/tests/unit/(.+)\.php}
  watch 'website/tests/unit/phpunit.xml'
end

php_unit.rb

require 'guard/guard'

module ::Guard
  # Runs the phpunit test suite whenever a .php file in lib/ or test changes
  #
  class PhpUnit < ::Guard::Guard

    def initialize(watchers = [], options = {})
      super

      @vagrant_env = .cwd if options[:vagrant]
      guard_vagrant = ::Guard.guards(:vagrant)

      unless guard_vagrant.nil?
        @vagrant_env = Vagrant::Environment.new(:cwd => guard_vagrant.cwd)
      end
    end

    def vagrant?
      @vagrant_env
    end

    def run_on_change(paths)
      UI.info 'Running phpunit', :reset => true

      return if vagrant? && !vagrant_ready?

      if success = run_tests
        ::Guard::Notifier.notify(success, :title => 'PHPUnit', :image => :success)
      else
        ::Guard::Notifier.notify('Tests failed!', :title => 'PHPUnit', :image => :failed)
      end
    end

    def run_tests
      if vagrant?
        @vagrant_env.primary_vm.ssh.execute do |ssh|
          ssh.exec!(php_unit_command, :error_check => false) do |ch, type, data|
            !(type == :exit_status)
          end
        end
      else
        system(php_unit_command)
      end
    end

    def php_unit_command
      tests_dir = File.dirname(File.expand_path(__FILE__)) + "/website/tests/unit"
      "cd #{tests_dir}; phpunit"
    end

    def vagrant_ready?
      if !@vagrant_env.primary_vm.created?
        ::Guard::Notifier.notify("Must run `vagrant up`", :title => 'PHPUnit')
        false
      elsif !@vagrant_env.primary_vm.vm.running?
        ::Guard::Notifier.notify("Vagrant must be running!", :title => 'PHPUnit')
        false
      else
        true
      end
    end

  end
end

vagrant.rb

require 'guard/guard'
require 'vagrant'

module ::Guard
  # Start, stop and reload Vagrant VMs on file modifications
  #
  class Vagrant < ::Guard::Guard

    attr_accessor :cwd

    def initialize(watchers = [], options = {})
      super

      @cwd = File.expand_path(options[:cwd] || "~/vagrant/my-development")
    end

    def start
      # Start your Vagrant VMs here
    end

    def stop
      # Stop your Vagrant VMs here
    end

    def reload
      # Reload your Vagrant VMs here
    end

  end
end