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path: root/jni/ruby/test/rubygems/test_gem_commands_uninstall_command.rb
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require 'rubygems/installer_test_case'
require 'rubygems/commands/uninstall_command'

class TestGemCommandsUninstallCommand < Gem::InstallerTestCase

  def setup
    super

    build_rake_in do
      use_ui @ui do
        @installer.install
      end
    end

    @cmd = Gem::Commands::UninstallCommand.new
    @executable = File.join(@gemhome, 'bin', 'executable')
  end

  def test_execute_all_named
    util_make_gems

    default = new_default_spec 'default', '1'
    install_default_gems default

    gemhome2 = "#{@gemhome}2"

    a_4 = util_spec 'a', 4
    install_gem a_4, :install_dir => gemhome2

    Gem::Specification.dirs = [@gemhome, gemhome2]

    assert_includes Gem::Specification.all_names, 'a-1'
    assert_includes Gem::Specification.all_names, 'a-4'
    assert_includes Gem::Specification.all_names, 'b-2'
    assert_includes Gem::Specification.all_names, 'default-1'

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

    use_ui @ui do
      @cmd.execute
    end

    assert_equal %w[a-4 a_evil-9 b-2 c-1.2 default-1 dep_x-1 pl-1-x86-linux x-1],
                 Gem::Specification.all_names.sort
  end

  def test_execute_dependency_order
    c = quick_gem 'c' do |spec|
      spec.add_dependency 'a'
    end

    util_build_gem c
    installer = util_installer c, @gemhome
    use_ui @ui do installer.install end

    ui = Gem::MockGemUi.new

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

    use_ui ui do
      @cmd.execute
    end

    output = ui.output.split "\n"

    assert_equal 'Successfully uninstalled c-2', output.shift
    assert_equal "Removing executable",          output.shift
    assert_equal 'Successfully uninstalled a-2', output.shift
  end

  def test_execute_removes_executable
    ui = Gem::MockGemUi.new

    util_setup_gem ui

    build_rake_in do
      use_ui ui do
        @installer.install
      end
    end

    if win_platform? then
      assert File.exist?(@executable)
    else
      assert File.symlink?(@executable)
    end

    # Evil hack to prevent false removal success
    FileUtils.rm_f @executable

    open @executable, "wb+" do |f| f.puts "binary" end

    @cmd.options[:executables] = true
    @cmd.options[:args] = [@spec.name]
    use_ui @ui do
      @cmd.execute
    end

    output = @ui.output.split "\n"
    assert_match(/Removing executable/, output.shift)
    assert_match(/Successfully uninstalled/, output.shift)
    assert_equal false, File.exist?(@executable)
    assert_nil output.shift, "UI output should have contained only two lines"
  end

  def test_execute_removes_formatted_executable
    FileUtils.rm_f @executable # Wish this didn't happen in #setup

    Gem::Installer.exec_format = 'foo-%s-bar'

    @installer.format_executable = true
    @installer.install

    formatted_executable = File.join @gemhome, 'bin', 'foo-executable-bar'
    assert_equal true, File.exist?(formatted_executable)

    @cmd.options[:executables] = true
    @cmd.options[:format_executable] = true
    @cmd.execute

    assert_equal false, File.exist?(formatted_executable)
  rescue
    Gem::Installer.exec_format = nil
  end

  def test_execute_prerelease
    @spec = util_spec "pre", "2.b"
    @gem = File.join @tempdir, @spec.file_name
    FileUtils.touch @gem

    util_setup_gem

    build_rake_in do
      use_ui @ui do
        @installer.install
      end
    end

    @cmd.options[:executables] = true
    @cmd.options[:args] = ["pre"]

    use_ui @ui do
      @cmd.execute
    end

    output = @ui.output
    assert_match(/Successfully uninstalled/, output)
  end

  def test_execute_with_force_leaves_executable
    ui = Gem::MockGemUi.new

    util_make_gems
    util_setup_gem ui

    @cmd.options[:version] = '1'
    @cmd.options[:force] = true
    @cmd.options[:args] = ['a']

    use_ui ui do
      @cmd.execute
    end

    assert !Gem::Specification.all_names.include?('a')
    assert File.exist? File.join(@gemhome, 'bin', 'executable')
  end

  def test_execute_with_force_uninstalls_all_versions
    ui = Gem::MockGemUi.new "y\n"

    util_make_gems
    util_setup_gem ui

    assert Gem::Specification.find_all_by_name('a').length > 1

    @cmd.options[:force] = true
    @cmd.options[:args] = ['a']

    use_ui ui do
      @cmd.execute
    end

    refute_includes Gem::Specification.all_names, 'a'
  end

  def test_execute_with_force_ignores_dependencies
    ui = Gem::MockGemUi.new

    util_make_gems
    util_setup_gem ui

    assert Gem::Specification.find_all_by_name('dep_x').length > 0
    assert Gem::Specification.find_all_by_name('x').length > 0

    @cmd.options[:force] = true
    @cmd.options[:args] = ['x']

    use_ui ui do
      @cmd.execute
    end

    assert Gem::Specification.find_all_by_name('dep_x').length > 0
    assert Gem::Specification.find_all_by_name('x').length == 0
  end

  def test_execute_all
    util_make_gems

    default = new_default_spec 'default', '1'
    install_default_gems default

    gemhome2 = "#{@gemhome}2"

    a_4 = util_spec 'a', 4
    install_gem a_4, :install_dir => gemhome2

    Gem::Specification.dirs = [@gemhome, gemhome2]

    assert_includes Gem::Specification.all_names, 'a-1'
    assert_includes Gem::Specification.all_names, 'a-4'
    assert_includes Gem::Specification.all_names, 'default-1'

    @cmd.options[:all] = true
    @cmd.options[:args] = []

    use_ui @ui do
      @cmd.execute
    end

    assert_equal %w[a-4 default-1], Gem::Specification.all_names.sort
  end

  def test_handle_options
    @cmd.handle_options %w[]

    assert_equal false,                    @cmd.options[:check_dev]
    assert_equal nil,                      @cmd.options[:install_dir]
    assert_equal true,                     @cmd.options[:user_install]
    assert_equal Gem::Requirement.default, @cmd.options[:version]
    assert_equal false,                    @cmd.options[:vendor]
  end

  def test_handle_options_vendor
    use_ui @ui do
      @cmd.handle_options %w[--vendor]
    end

    assert @cmd.options[:vendor]
    assert_equal Gem.vendor_dir, @cmd.options[:install_dir]

    assert_empty @ui.output

    expected = <<-EXPECTED
WARNING:  Use your OS package manager to uninstall vendor gems
    EXPECTED

    assert_match expected, @ui.error
  end

  def test_handle_options_vendor_missing
    orig_vendordir = RbConfig::CONFIG['vendordir']
    RbConfig::CONFIG.delete 'vendordir'

    e = assert_raises OptionParser::InvalidOption do
      @cmd.handle_options %w[--vendor]
    end

    assert_equal 'invalid option: --vendor your platform is not supported',
                 e.message

    refute @cmd.options[:vendor]
    refute @cmd.options[:install_dir]

  ensure
    RbConfig::CONFIG['vendordir'] = orig_vendordir
  end

end