require File.expand_path(File.dirname(__FILE__) + '/helper')

describe "Dependencies" do
  context 'when we require a dependency that have another dependency' do
    setup do
      @log_level = Padrino::Logger::Config[:test]
      @io = StringIO.new
      Padrino::Logger::Config[:test] = { :log_level => :error, :stream => @io }
      Padrino::Logger.setup!
    end

    teardown do
      Padrino::Logger::Config[:test] = @log_level
      Padrino::Logger.setup!
    end

    should 'raise an error without reloading it twice' do
      capture_io do
        assert_raises(RuntimeError) do
          Padrino.require_dependencies(
            Padrino.root("fixtures/dependencies/a.rb"),
            Padrino.root("fixtures/dependencies/b.rb"),
            Padrino.root("fixtures/dependencies/c.rb"),
            Padrino.root("fixtures/dependencies/d.rb")
          )
        end
      end
      assert_equal 1, D
      assert_match /RuntimeError: SomeThing/, @io.string
    end

    should 'resolve dependency problems' do
      capture_io do
        Padrino.require_dependencies(
          Padrino.root("fixtures/dependencies/a.rb"),
          Padrino.root("fixtures/dependencies/b.rb"),
          Padrino.root("fixtures/dependencies/c.rb")
        )
      end
      assert_equal ["B", "C"], A_result
      assert_equal "C", B_result
      assert_equal "", @io.string
    end

    should 'remove partially loaded constants' do
      capture_io do
        Padrino.require_dependencies(
          Padrino.root("fixtures/dependencies/circular/e.rb"),
          Padrino.root("fixtures/dependencies/circular/f.rb"),
          Padrino.root("fixtures/dependencies/circular/g.rb")
        )
      end
      assert_equal ["name"], F.fields
      assert_equal "", @io.string
    end
  end
end