ruby--ruby/test/rubygems/test_gem_silent_ui.rb

# frozen_string_literal: true
require_relative "helper"
require "rubygems/user_interaction"
require "timeout"

class TestGemSilentUI < Gem::TestCase
  def setup
    super
    @sui = Gem::SilentUI.new
  end

  def teardown
    @sui.close
    super
  end

  def test_ask
    value = nil
    out, err = capture_output do
      use_ui @sui do
        value = @sui.ask "Problem?"
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    assert_nil value, "No value"
  end

  def test_ask_for_password
    value = nil
    out, err = capture_output do
      use_ui @sui do
        value = @sui.ask_for_password "Problem?"
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    assert_nil value, "No value"
  end

  def test_ask_yes_no
    value = nil
    out, err = capture_output do
      use_ui @sui do
        assert_raise(Gem::OperationNotSupportedError) do
          @sui.ask_yes_no "Problem?"
        end
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    out, err = capture_output do
      use_ui @sui do
        value = @sui.ask_yes_no "Problem?", true
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    assert value, "Value is true"

    out, err = capture_output do
      use_ui @sui do
        value = @sui.ask_yes_no "Problem?", false
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    assert_equal value, false, "Value is false"
  end

  def test_choose_from_list
    value = nil
    out, err = capture_output do
      use_ui @sui do
        value = @sui.choose_from_list "Problem?", %w[yes no]
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"

    assert_equal [nil, nil], value, "Value is nil!"
  end

  def test_progress_reporter
    out, err = capture_output do
      use_ui @sui do
        @sui.progress_reporter 10, "hi"
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"
  end

  def test_download_reporter
    out, err = capture_output do
      use_ui @sui do
        @sui.download_reporter.fetch "a.gem", 1024
      end
    end

    assert_empty out, "No output"
    assert_empty err, "No output"
  end

  def test_new_without_dev_null
    File.stub(:open, ->(path, mode) { raise Errno::ENOTCAPABLE if path == IO::NULL }) do
      Gem::SilentUI.new
    end
  end
end