# -*- encoding: utf-8 -*-

require 'minitest/autorun'
require 'webgen/extension_manager'

class DummyExtensionManager

  include Webgen::ExtensionManager

  def register(name, value)
    @extensions[name.to_sym] = OpenStruct.new(:object => value)
  end

end

class TestExtensionManager < MiniTest::Unit::TestCase

  def setup
    @dummy = DummyExtensionManager.new
  end

  def test_registered_extensions
    assert_kind_of(Hash, @dummy.registered_extensions)
    assert_empty(@dummy.registered_extensions)
    @dummy.register('key', 'value')
    assert(@dummy.registered_extensions.has_key?(:key))
  end

  def test_registered
    refute(@dummy.registered?('key'))
    @dummy.register('key', 'value')
    assert(@dummy.registered?('key'))
  end

  def test_normalize_class_name
    klass, name = @dummy.send(:normalize_class_name, "Klass", false)
    assert_equal("DummyExtensionManager::Klass", klass)
    assert_equal("Klass", name)
    klass, name = @dummy.send(:normalize_class_name, "MyKlass", false)
    assert_equal("DummyExtensionManager::MyKlass", klass)
    assert_equal("MyKlass", name)
    klass, name = @dummy.send(:normalize_class_name, "My::Klass", false)
    assert_equal("My::Klass", klass)
    assert_equal("Klass", name)
    klass, name = @dummy.send(:normalize_class_name, "klass", false)
    assert_equal("DummyExtensionManager::klass", klass)
    assert_equal("klass", name)
  end

  def test_do_register
    @dummy.send(:do_register, "Klass")
    assert_equal('DummyExtensionManager::Klass', @dummy.send(:ext_data, 'klass').object)
    @dummy.send(:do_register, "Test::Klass", :name => 'test')
    assert_equal('Test::Klass',  @dummy.send(:ext_data, :test).object)
    @dummy.send(:do_register, DummyExtensionManager, :name => 'test')
    assert_equal(DummyExtensionManager,  @dummy.send(:ext_data, :test).object)
  end

  def test_extension
    @dummy.register('key', 'DummyExtensionManager')
    assert_equal(DummyExtensionManager, @dummy.send(:extension, "key"))
    assert_raises(Webgen::Error) { @dummy.send(:extension, "unknown") }
  end

  def test_resolve_class
    assert_equal(DummyExtensionManager, @dummy.send(:resolve_class, DummyExtensionManager))
    assert_equal(DummyExtensionManager, @dummy.send(:resolve_class, 'DummyExtensionManager'))
  end

end