require 'testing_env'

require 'extend/ARGV' # needs to be after test/unit to avoid conflict with OptionsParser
ARGV.extend(HomebrewArgvExtension)

require 'test/testball'
require 'formula_installer'
require 'utils'


# Custom formula installer that checks deps but does not
# run the install code. We also override the external dep
# install messages, so for instance the Python check doesnt
# look for the pip formula (which isn't avaialble in test
# mode.)
class DontActuallyInstall < FormulaInstaller
  def install_private f ; end
  
  def pyerr dep
    "Python module install message."
  end
  
  def plerr dep
    "Perl module install message."
  end
  
  def rberr dep
    "Ruby module install message."
  end

  def jrberr dep
    "JRuby module install message."
  end
end



class BadPerlBall <TestBall
  depends_on "notapackage" => :perl

  def initialize name=nil
    super "uses_perl_ball"
  end
end

class GoodPerlBall <TestBall
  depends_on "ENV" => :perl

  def initialize name=nil
    super "uses_perl_ball"
  end
end

class BadPythonBall <TestBall
  depends_on "notapackage" => :python

  def initialize name=nil
    super "uses_python_ball"
  end
end

class GoodPythonBall <TestBall
  depends_on "datetime" => :python

  def initialize name=nil
    super "uses_python_ball"
  end
end

class BadRubyBall <TestBall
  depends_on "notapackage" => :ruby

  def initialize name=nil
    super "uses_ruby_ball"
  end
end

class GoodRubyBall <TestBall
  depends_on "date" => :ruby

  def initialize name=nil
    super "uses_ruby_ball"
  end
end

class BadJRubyBall <TestBall
  depends_on "notapackage" => :jruby

  def initialize name=nil
    super "uses_jruby_ball"
  end
end

class GoodJRubyBall <TestBall
  depends_on "date" => :jruby

  def initialize name=nil
    super "uses_jruby_ball"
  end
end


class ExternalDepsTests < Test::Unit::TestCase
  def check_deps_fail f
    assert_raises(RuntimeError) do
      DontActuallyInstall.new.install f.new
    end
  end

  def check_deps_pass f
    assert_nothing_raised do
      DontActuallyInstall.new.install f.new
    end
  end


  def test_bad_perl_deps
    check_deps_fail BadPerlBall
  end

  def test_good_perl_deps
    check_deps_pass GoodPerlBall
  end

  def test_bad_python_deps
    check_deps_fail BadPythonBall
  end

  def test_good_python_deps
    check_deps_pass GoodPythonBall
  end

  def test_bad_ruby_deps
    check_deps_fail BadRubyBall
  end

  def test_good_ruby_deps
    check_deps_pass GoodRubyBall
  end

  # Only run these next two tests if jruby is installed.
  def test_bad_jruby_deps
    check_deps_fail BadJRubyBall unless `/usr/bin/which jruby`.chomp.empty?
  end

  def test_good_jruby_deps
    check_deps_pass GoodJRubyBall unless `/usr/bin/which jruby`.chomp.empty?
  end
end