test/rubygems/test_gem_commands_which_command.rb


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require 'rubygems/test_case'
require 'rubygems/commands/which_command'

class TestGemCommandsWhichCommand < Gem::TestCase

  def setup
    super
    Gem::Specification.reset
    @cmd = Gem::Commands::WhichCommand.new
  end

  def test_execute
    util_foo_bar

    @cmd.handle_options %w[foo_bar]

    use_ui @ui do
      @cmd.execute
    end

    assert_equal "#{@foo_bar.full_gem_path}/lib/foo_bar.rb\n", @ui.output
    assert_equal '', @ui.error
  end

  def test_execute_directory
    @cmd.handle_options %w[directory]

    use_ui @ui do
      assert_raises Gem::MockGemUi::TermError do
        @cmd.execute
      end
    end

    assert_equal '', @ui.output
    assert_match %r%Can.t find ruby library file or shared library directory\n%,
                 @ui.error
  end

  def test_execute_one_missing
    # TODO: this test fails in isolation

    util_foo_bar

    @cmd.handle_options %w[foo_bar missinglib]

    use_ui @ui do
      assert_raises Gem::MockGemUi::TermError do
        @cmd.execute
      end
    end

    assert_equal "#{@foo_bar.full_gem_path}/lib/foo_bar.rb\n", @ui.output
    assert_match %r%Can.t find ruby library file or shared library missinglib\n%,
                 @ui.error
  end

  def test_execute_missing
    @cmd.handle_options %w[missinglib]

    use_ui @ui do
      assert_raises Gem::MockGemUi::TermError do
        @cmd.execute
      end
    end

    assert_equal '', @ui.output
    assert_match %r%Can.t find ruby library file or shared library missinglib\n%,
                 @ui.error
  end

  def util_foo_bar
    files = %w[lib/foo_bar.rb lib/directory/baz.rb Rakefile]
    @foo_bar = util_spec 'foo_bar' do |gem|
      gem.files = files
    end
    install_specs @foo_bar

    files.each do |file|
      filename = File.join(@foo_bar.full_gem_path, file)
      FileUtils.mkdir_p File.dirname filename
      FileUtils.touch filename
    end
  end

end