require 'test/unit'
require File.join(File.expand_path(File.dirname(__FILE__)), 'gemutilities')
require 'rubygems/commands/unpack_command'

class TestGemCommandsUnpackCommand < RubyGemTestCase

  def setup
    super

    Dir.chdir @tempdir do
      @cmd = Gem::Commands::UnpackCommand.new
    end
  end

  def test_execute
    util_make_gems

    @cmd.options[:args] = %w[a]

      use_ui @ui do
        Dir.chdir @tempdir do
          @cmd.execute
        end
      end

    assert File.exist?(File.join(@tempdir, 'a-2'))
  end

  def test_execute_with_target_option
    util_make_gems

    target = 'with_target'
    @cmd.options[:args] = %w[a]
    @cmd.options[:target] = target

    use_ui @ui do
      Dir.chdir @tempdir do
        @cmd.execute
      end
    end

    assert File.exist?(File.join(@tempdir, target, 'a-2'))
  end

  def test_execute_exact_match
    foo_spec = quick_gem 'foo'
    foo_bar_spec = quick_gem 'foo_bar'

    use_ui @ui do
      Dir.chdir @tempdir do
        Gem::Builder.new(foo_spec).build
        Gem::Builder.new(foo_bar_spec).build
      end
    end

    foo_path = File.join(@tempdir, "#{foo_spec.full_name}.gem")
    foo_bar_path = File.join(@tempdir, "#{foo_bar_spec.full_name}.gem")
    Gem::Installer.new(foo_path).install
    Gem::Installer.new(foo_bar_path).install

    @cmd.options[:args] = %w[foo]

    use_ui @ui do
      Dir.chdir @tempdir do
        @cmd.execute
      end
    end

    assert File.exist?(File.join(@tempdir, foo_spec.full_name))
  end

end