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path: root/Library/Homebrew/test/cask/cli/cleanup_spec.rb
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describe Hbc::CLI::Cleanup, :cask do
  let(:cache_location) { Pathname.new(Dir.mktmpdir).realpath }
  let(:cleanup_outdated) { false }

  subject { described_class.new(cache_location, cleanup_outdated) }

  after do
    cache_location.rmtree
  end

  describe "cleanup" do
    it "removes cached downloads of given casks" do
      cleaned_up_cached_download = "caffeine"

      cached_downloads = [
        cache_location.join("#{cleaned_up_cached_download}--latest.zip"),
        cache_location.join("transmission--2.61.dmg"),
      ]

      cached_downloads.each(&FileUtils.method(:touch))

      cleanup_size = cached_downloads[0].disk_usage

      expect {
        subject.cleanup(cleaned_up_cached_download)
      }.to output(<<-EOS.undent).to_stdout
        ==> Removing cached downloads for #{cleaned_up_cached_download}
        #{cached_downloads[0]}
        ==> This operation has freed approximately #{disk_usage_readable(cleanup_size)} of disk space.
      EOS

      expect(cached_downloads[0].exist?).to eq(false)
      expect(cached_downloads[1].exist?).to eq(true)
    end
  end

  describe "cleanup!" do
    it "removes cached downloads" do
      cached_download = cache_location.join("SomeDownload.dmg")
      FileUtils.touch(cached_download)
      cleanup_size = subject.disk_cleanup_size

      expect {
        subject.cleanup!
      }.to output(<<-EOS.undent).to_stdout
        ==> Removing cached downloads
        #{cached_download}
        ==> This operation has freed approximately #{disk_usage_readable(cleanup_size)} of disk space.
      EOS

      expect(cached_download.exist?).to eq(false)
    end

    # TODO: uncomment when unflaky.
    # it "does not removed locked files" do
    #   cached_download = cache_location.join("SomeDownload.dmg")
    #   FileUtils.touch(cached_download)
    #   cleanup_size = subject.disk_cleanup_size
    #
    #   File.new(cached_download).flock(File::LOCK_EX)
    #
    #   expect(Hbc::Utils).to be_file_locked(cached_download)
    #
    #   expect {
    #     subject.cleanup!
    #   }.to output(<<-EOS.undent).to_stdout
    #     ==> Removing cached downloads
    #     skipping: #{cached_download} is locked
    #     ==> This operation has freed approximately #{disk_usage_readable(cleanup_size)} of disk space.
    #   EOS
    #
    #   expect(cached_download.exist?).to eq(true)
    # end

    context "when cleanup_outdated is specified" do
      let(:cleanup_outdated) { true }

      it "does not remove cache files newer than 10 days old" do
        cached_download = cache_location.join("SomeNewDownload.dmg")
        FileUtils.touch(cached_download)

        expect {
          subject.cleanup!
        }.to output(<<-EOS.undent).to_stdout
          ==> Removing cached downloads older than 10 days old
          Nothing to do
        EOS

        expect(cached_download.exist?).to eq(true)
      end
    end
  end
end