require 'assert'

require 'sanford/manager'

class Sanford::HostData

  class BaseTest < Assert::Context
    desc "Sanford::HostData"
    setup do
      @host_data = Sanford::HostData.new(TestHost)
    end
    subject{ @host_data }

    should have_instance_methods :name, :ip, :port, :pid_dir, :logger, :verbose,
      :error_proc, :handler_class_for

    should "default it's configuration from the service host, but allow overrides" do
      host_data = Sanford::HostData.new(TestHost, :ip => '1.2.3.4', :port => 12345)

      assert_equal 'TestHost',  host_data.name
      assert_equal '1.2.3.4',   host_data.ip
      assert_equal 12345,       host_data.port
    end

    should "constantize a host's handlers" do
      handlers = subject.instance_variable_get("@handlers")

      assert_equal TestHost::Authorized,  handlers['v1']['authorized']
      assert_equal TestHost::Bad,         handlers['v1']['bad']
      assert_equal TestHost::Echo,        handlers['v1']['echo']
      assert_equal TestHost::HaltIt,      handlers['v1']['halt_it']
      assert_equal TestHost::Multiply,    handlers['v1']['multiply']
    end

    should "ignore nil values passed as overrides" do
      host_data = Sanford::HostData.new(TestHost, :ip => nil)

      assert_not_nil host_data.ip
    end

    should "raise a custom exception when passed invalid host" do
      assert_raises(Sanford::InvalidHostError) do
        Sanford::Manager.new(InvalidHost)
      end
    end

    should "look up handler classes with #handler_class_for" do
      assert_equal TestHost::Echo, subject.handler_class_for('v1', 'echo')
    end

    should "raise a custom error when handler_class_for is called with an unknown service" do
      assert_raises(Sanford::NotFoundError) do
        subject.handler_class_for('not', 'defined')
      end
    end

    should "raise a custom error when a service is configured with an undefined class" do
      assert_raises(Sanford::NoHandlerClassError) do
        Sanford::HostData.new(UndefinedHandlersHost)
      end
    end

  end

end