require "#{File.dirname(__FILE__)}/../utils"
require 'capistrano/configuration/namespaces'

class ConfigurationNamespacesDSLTest < Test::Unit::TestCase
  class MockConfig
    attr_reader :original_initialize_called

    def initialize
      @original_initialize_called = true
    end

    include Capistrano::Configuration::Namespaces
  end

  def setup
    @config = MockConfig.new
  end

  def test_initialize_should_initialize_collections
    assert @config.original_initialize_called
    assert @config.tasks.empty?
    assert @config.namespaces.empty?
  end

  def test_unqualified_task_should_define_task_at_top_namespace
    assert !@config.tasks.key?(:testing)
    @config.task(:testing) { puts "something" }
    assert @config.tasks.key?(:testing)
  end

  def test_qualification_should_define_task_within_namespace
    @config.namespace(:testing) do
      task(:nested) { puts "nested" }
    end

    assert !@config.tasks.key?(:nested)
    assert @config.namespaces.key?(:testing)
    assert @config.namespaces[:testing].tasks.key?(:nested)
  end

  def test_namespace_within_namespace_should_define_task_within_nested_namespace
    @config.namespace :outer do
      namespace :inner do
        task :nested do
          puts "nested"
        end
      end
    end

    assert !@config.tasks.key?(:nested)
    assert @config.namespaces.key?(:outer)
    assert @config.namespaces[:outer].namespaces.key?(:inner)
    assert @config.namespaces[:outer].namespaces[:inner].tasks.key?(:nested)
  end

  def test_pending_desc_should_disappear_when_enclosing_namespace_terminates
    @config.namespace :outer do
      desc "Something to say"
    end

    @config.namespace :outer do
      task :testing do
        puts "testing"
      end
    end

    assert_nil @config.namespaces[:outer].tasks[:testing].options[:desc]
  end

  def test_pending_desc_should_apply_only_to_immediately_subsequent_task
    @config.desc "A description"
    @config.task(:testing) { puts "foo" }
    @config.task(:another) { puts "bar" }
    assert_equal "A description", @config.tasks[:testing].options[:desc]
    assert_nil @config.tasks[:another].options[:desc]
  end

  def test_defining_task_without_block_should_raise_error
    assert_raises(ArgumentError) do
      @config.task(:testing)
    end
  end

  def test_defining_task_that_shadows_existing_method_should_raise_error
    assert_raises(ArgumentError) do
      @config.task(:sprintf) { puts "foo" }
    end
  end

  def test_defining_task_that_shadows_existing_namespace_should_raise_error
    @config.namespace(:outer) {}
    assert_raises(ArgumentError) do
      @config.task(:outer) { puts "foo" }
    end
  end

  def test_defining_namespace_that_shadows_existing_method_should_raise_error
    assert_raises(ArgumentError) do
      @config.namespace(:sprintf) {}
    end
  end

  def test_defining_namespace_that_shadows_existing_task_should_raise_error
    @config.task(:testing) { puts "foo" }
    assert_raises(ArgumentError) do
      @config.namespace(:testing) {}
    end
  end

  def test_defining_task_that_shadows_existing_task_should_not_raise_error
    @config.task(:original) { puts "foo" }
    assert_nothing_raised do
      @config.task(:original) { puts "bar" }
    end
  end

  def test_role_inside_namespace_should_raise_error
    assert_raises(NotImplementedError) do
      @config.namespace(:outer) do
        role :app, "hello"
      end
    end
  end

  def test_name_for_top_level_should_be_nil
    assert_nil @config.name
  end

  def test_parent_for_top_level_should_be_nil
    assert_nil @config.parent
  end

  def test_fqn_for_top_level_should_be_nil
    assert_nil @config.fully_qualified_name
  end

  def test_fqn_for_namespace_should_be_the_name_of_the_namespace
    @config.namespace(:outer) {}
    assert_equal "outer", @config.namespaces[:outer].fully_qualified_name
  end

  def test_parent_for_namespace_should_be_the_top_level
    @config.namespace(:outer) {}
    assert_equal @config, @config.namespaces[:outer].parent    
  end

  def test_fqn_for_nested_namespace_should_be_color_delimited
    @config.namespace(:outer) { namespace(:inner) {} }
    assert_equal "outer:inner", @config.namespaces[:outer].namespaces[:inner].fully_qualified_name
  end

  def test_parent_for_nested_namespace_should_be_the_nesting_namespace
    @config.namespace(:outer) { namespace(:inner) {} }
    assert_equal @config.namespaces[:outer], @config.namespaces[:outer].namespaces[:inner].parent
  end
end