require 'test/unit'
require 'app/helpers/tasks_helper'

include Merb::TasksHelper

class TaskHelperTestCase < Test::Unit::TestCase
  TERMINATORS = ["", "\n"]

  # Convenience assertion to check that get_bucket_tasks_from_text returns the
  # expected result for the given task text, also trying adding newlines at the
  # end
  def assert_correct_tasks(expected, task_text)
    TERMINATORS.each do |term|
      assert_equal expected,
                   get_bucket_tasks_from_text(task_text + term)
    end
  end


  def test_single_simple_task
    assert_correct_tasks [["simple task", []]],
                         "simple task"
  end

  def test_single_tagged_task
    assert_correct_tasks [["simple task", ["some_tag", "test"]]],
                         "simple task [some_tag, test]"
  end

  def test_simple_tasks
    assert_correct_tasks [["first task", []],
                          ["second task after empty line", []]],
                         "first task   \n" +
                              "\n" +
                              "second task after empty line"
  end

  def test_tagged_tasks
    assert_correct_tasks [["simple task", ["some_tag", "test"]],
                          ["another task", ["test", "qa"]]],
                         "simple task [some_tag , test]\n" +
                              "another task [test,qa]"

    # Some task without tags in between
    assert_correct_tasks [["task with extra blanks", ["some_tag", "test"]],
                          ["some task without tags", []],
                          ["another task", ["test", "qa"]]],
                         "  task with extra blanks [some_tag, test]   \n" +
                              "some task without tags\n" +
                              "another task [test,qa]"

    # With explicit empty tags
    assert_correct_tasks [["simple task", ["some_tag", "test"]],
                          ["some task without tags", []],
                          ["another task", ["test"]]],
                         "simple task [some_tag , test]\n" +
                              "some task without tags []\n" +
                              "another task [test ,]"
  end
end