require 'test_helper'

# monkeypatch for testing
class Cask::CLI::Create
  def self.exec_editor(*command)
    editor_commands << command
  end

  def self.reset!
    @editor_commands = []
  end

  def self.editor_commands
    @editor_commands ||= []
  end
end

describe Cask::CLI::Create do
  before { Cask::CLI::Create.reset! }

  after {
    %w[ new-cask additional-cask another-cask yet-another-cask feine ].each do |cask|
      path = Cask.path(cask)
      path.delete if path.exist?
    end
  }

  it 'opens the editor for the specified Cask' do
    Cask::CLI::Create.run('new-cask')
    Cask::CLI::Create.editor_commands.must_equal [
      [Cask.path('new-cask')]
    ]
  end

  it 'drops a template down for the specified Cask' do
    Cask::CLI::Create.run('new-cask')
    template = File.read(Cask.path('new-cask'))
    template.must_equal <<-TEMPLATE.undent
      cask :v1 => 'new-cask' do
        version ''
        sha256 ''

        url 'https://'
        name ''
        homepage ''
        license :unknown    # todo: improve this machine-generated value

        app ''
      end
    TEMPLATE
  end

  it 'throws away additional Cask arguments and uses the first' do
    Cask::CLI::Create.run('additional-cask', 'another-cask')
    Cask::CLI::Create.editor_commands.must_equal [
      [Cask.path('additional-cask')]
    ]
  end

  it 'throws away stray options' do
    Cask::CLI::Create.run('--notavalidoption', 'yet-another-cask')
    Cask::CLI::Create.editor_commands.must_equal [
      [Cask.path('yet-another-cask')]
    ]
  end

  it 'raises an exception when the Cask already exists' do
    lambda {
      Cask::CLI::Create.run('caffeine')
    }.must_raise CaskAlreadyCreatedError
  end

  it 'allows creating Casks that are substrings of existing Casks' do
    Cask::CLI::Create.run('feine')
    Cask::CLI::Create.editor_commands.must_equal [
      [Cask.path('feine')]
    ]
  end

  describe "when no Cask is specified" do
    it "raises an exception" do
      lambda {
        Cask::CLI::Create.run()
      }.must_raise CaskUnspecifiedError
    end
  end

  describe "when no Cask is specified, but an invalid option" do
    it "raises an exception" do
      lambda {
        Cask::CLI::Create.run('--notavalidoption')
      }.must_raise CaskUnspecifiedError
    end
  end
end