brew/Library/Homebrew/test/cask/installer_spec.rb

# frozen_string_literal: true

describe Cask::Installer, :cask do
  describe "install" do
    it "downloads and installs a nice fresh Cask" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))

      described_class.new(caffeine).install

      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version)).to be_a_directory
      expect(caffeine.config.appdir.join("Caffeine.app")).to be_a_directory
    end

    it "works with HFS+ dmg-based Casks" do
      asset = Cask::CaskLoader.load(cask_path("container-dmg"))

      described_class.new(asset).install

      expect(Cask::Caskroom.path.join("container-dmg", asset.version)).to be_a_directory
      expect(asset.config.appdir.join("container")).to be_a_file
    end

    it "works with tar-gz-based Casks" do
      asset = Cask::CaskLoader.load(cask_path("container-tar-gz"))

      described_class.new(asset).install

      expect(Cask::Caskroom.path.join("container-tar-gz", asset.version)).to be_a_directory
      expect(asset.config.appdir.join("container")).to be_a_file
    end

    it "works with xar-based Casks" do
      asset = Cask::CaskLoader.load(cask_path("container-xar"))

      described_class.new(asset).install

      expect(Cask::Caskroom.path.join("container-xar", asset.version)).to be_a_directory
      expect(asset.config.appdir.join("container")).to be_a_file
    end

    it "works with pure bzip2-based Casks" do
      asset = Cask::CaskLoader.load(cask_path("container-bzip2"))

      described_class.new(asset).install

      expect(Cask::Caskroom.path.join("container-bzip2", asset.version)).to be_a_directory
      expect(asset.config.appdir.join("container")).to be_a_file
    end

    it "works with pure gzip-based Casks" do
      asset = Cask::CaskLoader.load(cask_path("container-gzip"))

      described_class.new(asset).install

      expect(Cask::Caskroom.path.join("container-gzip", asset.version)).to be_a_directory
      expect(asset.config.appdir.join("container")).to be_a_file
    end

    it "blows up on a bad checksum" do
      bad_checksum = Cask::CaskLoader.load(cask_path("bad-checksum"))
      expect do
        described_class.new(bad_checksum).install
      end.to raise_error(ChecksumMismatchError)
    end

    it "blows up on a missing checksum" do
      missing_checksum = Cask::CaskLoader.load(cask_path("missing-checksum"))
      expect do
        described_class.new(missing_checksum).install
      end.to output(/Cannot verify integrity/).to_stderr
    end

    it "installs fine if sha256 :no_check is used" do
      no_checksum = Cask::CaskLoader.load(cask_path("no-checksum"))

      described_class.new(no_checksum).install

      expect(no_checksum).to be_installed
    end

    it "fails to install if sha256 :no_check is used with --require-sha" do
      no_checksum = Cask::CaskLoader.load(cask_path("no-checksum"))
      expect do
        described_class.new(no_checksum, require_sha: true).install
      end.to raise_error(/--require-sha/)
    end

    it "installs fine if sha256 :no_check is used with --require-sha and --force" do
      no_checksum = Cask::CaskLoader.load(cask_path("no-checksum"))

      described_class.new(no_checksum, require_sha: true, force: true).install

      expect(no_checksum).to be_installed
    end

    it "prints caveats if they're present" do
      with_caveats = Cask::CaskLoader.load(cask_path("with-caveats"))

      expect do
        described_class.new(with_caveats).install
      end.to output(/Here are some things you might want to know/).to_stdout

      expect(with_caveats).to be_installed
    end

    it "prints installer :manual instructions when present" do
      with_installer_manual = Cask::CaskLoader.load(cask_path("with-installer-manual"))

      expect do
        described_class.new(with_installer_manual).install
      end.to output(
        <<~EOS,
          ==> Downloading file://#{HOMEBREW_LIBRARY_PATH}/test/support/fixtures/cask/caffeine.zip
          ==> Installing Cask with-installer-manual
          To complete the installation of Cask with-installer-manual, you must also
          run the installer at:
            #{with_installer_manual.staged_path.join("Caffeine.app")}
          🍺  with-installer-manual was successfully installed!
        EOS
      ).to_stdout

      expect(with_installer_manual).to be_installed
    end

    it "does not extract __MACOSX directories from zips" do
      with_macosx_dir = Cask::CaskLoader.load(cask_path("with-macosx-dir"))

      described_class.new(with_macosx_dir).install

      expect(with_macosx_dir.staged_path.join("__MACOSX")).not_to be_a_directory
    end

    it "allows already-installed Casks which auto-update to be installed if force is provided" do
      with_auto_updates = Cask::CaskLoader.load(cask_path("auto-updates"))

      expect(with_auto_updates).not_to be_installed

      described_class.new(with_auto_updates).install

      expect do
        described_class.new(with_auto_updates, force: true).install
      end.not_to raise_error
    end

    # unlike the CLI, the internal interface throws exception on double-install
    it "installer method raises an exception when already-installed Casks are attempted" do
      transmission = Cask::CaskLoader.load(cask_path("local-transmission"))

      expect(transmission).not_to be_installed

      installer = described_class.new(transmission)

      installer.install

      expect do
        installer.install
      end.to raise_error(Cask::CaskAlreadyInstalledError)
    end

    it "allows already-installed Casks to be installed if force is provided" do
      transmission = Cask::CaskLoader.load(cask_path("local-transmission"))

      expect(transmission).not_to be_installed

      described_class.new(transmission).install

      expect do
        described_class.new(transmission, force: true).install
      end.not_to raise_error
    end

    it "works naked-pkg-based Casks" do
      naked_pkg = Cask::CaskLoader.load(cask_path("container-pkg"))

      described_class.new(naked_pkg).install

      expect(Cask::Caskroom.path.join("container-pkg", naked_pkg.version, "container.pkg")).to be_a_file
    end

    it "works properly with an overridden container :type" do
      naked_executable = Cask::CaskLoader.load(cask_path("naked-executable"))

      described_class.new(naked_executable).install

      expect(Cask::Caskroom.path.join("naked-executable", naked_executable.version, "naked_executable")).to be_a_file
    end

    it "works fine with a nested container" do
      nested_app = Cask::CaskLoader.load(cask_path("nested-app"))

      described_class.new(nested_app).install

      expect(nested_app.config.appdir.join("MyNestedApp.app")).to be_a_directory
    end

    it "generates and finds a timestamped metadata directory for an installed Cask" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))

      described_class.new(caffeine).install

      m_path = caffeine.metadata_timestamped_path(timestamp: :now, create: true)
      expect(caffeine.metadata_timestamped_path(timestamp: :latest)).to eq(m_path)
    end

    it "generates and finds a metadata subdirectory for an installed Cask" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))

      described_class.new(caffeine).install

      subdir_name = "Casks"
      m_subdir = caffeine.metadata_subdir(subdir_name, timestamp: :now, create: true)
      expect(caffeine.metadata_subdir(subdir_name, timestamp: :latest)).to eq(m_subdir)
    end

    it "don't print cask installed message with --quiet option" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))
      expect do
        described_class.new(caffeine, quiet: true).install
      end.to output(nil).to_stdout
    end

    it "does NOT generate LATEST_DOWNLOAD_SHA256 file for installed Cask without version :latest" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))

      described_class.new(caffeine).install

      expect(caffeine.download_sha_path).not_to be_a_file
    end

    it "generates and finds LATEST_DOWNLOAD_SHA256 file for installed Cask with version :latest" do
      latest_cask = Cask::CaskLoader.load(cask_path("version-latest"))

      described_class.new(latest_cask).install

      expect(latest_cask.download_sha_path).to be_a_file
    end

    context "when loaded from the api and caskfile is required" do
      let(:path) { cask_path("local-caffeine") }
      let(:content) { File.read(path) }

      it "installs cask" do
        expect(Homebrew::API::Cask).to receive(:fetch_source).once.and_return(content)

        caffeine = Cask::CaskLoader.load(path)
        expect(caffeine).to receive(:loaded_from_api?).once.and_return(true)
        expect(caffeine).to receive(:caskfile_only?).once.and_return(true)

        described_class.new(caffeine).install
        expect(Cask::CaskLoader.load(path)).to be_installed
      end
    end

    it "zap method reinstall cask" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))
      described_class.new(caffeine).install

      expect(caffeine).to be_installed

      described_class.new(caffeine).zap

      expect(caffeine).not_to be_installed
      expect(caffeine.config.appdir.join("Caffeine.app")).not_to be_a_symlink
    end
  end

  describe "uninstall" do
    it "fully uninstalls a Cask" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))
      installer = described_class.new(caffeine)

      installer.install
      installer.uninstall

      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version, "Caffeine.app")).not_to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version)).not_to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine")).not_to be_a_directory
    end

    it "uninstalls all versions if force is set" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))
      mutated_version = "#{caffeine.version}.1"

      described_class.new(caffeine).install

      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version)).to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine", mutated_version)).not_to be_a_directory
      FileUtils.mv(Cask::Caskroom.path.join("local-caffeine", caffeine.version),
                   Cask::Caskroom.path.join("local-caffeine", mutated_version))
      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version)).not_to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine", mutated_version)).to be_a_directory

      described_class.new(caffeine, force: true).uninstall

      expect(Cask::Caskroom.path.join("local-caffeine", caffeine.version)).not_to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine", mutated_version)).not_to be_a_directory
      expect(Cask::Caskroom.path.join("local-caffeine")).not_to be_a_directory
    end

    context "when loaded from the api, caskfile is required and installed caskfile is invalid" do
      let(:path) { cask_path("local-caffeine") }
      let(:content) { File.read(path) }
      let(:invalid_path) { instance_double(Pathname) }

      before do
        allow(invalid_path).to receive(:exist?).and_return(false)
      end

      it "uninstalls cask" do
        expect(Homebrew::API::Cask).to receive(:fetch_source).twice.and_return(content)

        caffeine = Cask::CaskLoader.load(path)
        expect(caffeine).to receive(:loaded_from_api?).twice.and_return(true)
        expect(caffeine).to receive(:caskfile_only?).twice.and_return(true)
        expect(caffeine).to receive(:installed_caskfile).once.and_return(invalid_path)

        described_class.new(caffeine).install
        expect(Cask::CaskLoader.load(path)).to be_installed

        described_class.new(caffeine).uninstall
        expect(Cask::CaskLoader.load(path)).not_to be_installed
      end
    end
  end

  describe "uninstall_existing_cask" do
    it "uninstalls when cask file is outdated" do
      caffeine = Cask::CaskLoader.load(cask_path("local-caffeine"))
      described_class.new(caffeine).install

      expect(Cask::CaskLoader.load(cask_path("local-caffeine"))).to be_installed

      expect(caffeine).to receive(:installed?).once.and_return(true)
      outdate_caskfile = cask_path("invalid/invalid-depends-on-macos-bad-release")
      expect(caffeine).to receive(:installed_caskfile).once.and_return(outdate_caskfile)
      described_class.new(caffeine).uninstall_existing_cask

      expect(Cask::CaskLoader.load(cask_path("local-caffeine"))).not_to be_installed
    end
  end
end