require 'test/unit'

class TestUnitPriority < Test::Unit::TestCase
  class TestCase < Test::Unit::TestCase
    class << self
      def suite
        Test::Unit::TestSuite.new(name)
      end
    end

    priority :must
    def test_must
      assert(true)
    end

    def test_must_inherited
      assert(true)
    end

    priority :important
    def test_important
      assert(true)
    end

    def test_important_inherited
      assert(true)
    end

    priority :high
    def test_high
      assert(true)
    end

    def test_high_inherited
      assert(true)
    end

    priority :normal
    def test_normal
      assert(true)
    end

    def test_normal_inherited
      assert(true)
    end

    priority :low
    def test_low
      assert(true)
    end

    def test_low_inherited
      assert(true)
    end

    priority :never
    def test_never
      assert(true)
    end

    def test_never_inherited
      assert(true)
    end
  end

  def test_priority_must
    assert_priority("must", 1.0, 0.0001)
  end

  def test_priority_important
    assert_priority("important", 0.9, 0.09)
  end

  def test_priority_high
    assert_priority("high", 0.70, 0.1)
  end

  def test_priority_normal
    assert_priority("normal", 0.5, 0.1)
  end

  def test_priority_low
    assert_priority("low", 0.25, 0.1)
  end

  def test_priority_never
    assert_priority("never", 0.0, 0.0001)
  end

  def assert_priority(priority, expected, delta)
    assert_need_to_run("test_#{priority}", expected, delta)
    assert_need_to_run("test_#{priority}_inherited", expected, delta)
  end

  def assert_need_to_run(test_name, expected, delta)
    test = TestCase.new(test_name)
    n = 1000
    n_need_to_run = 0
    n.times do |i|
      n_need_to_run += 1 if Test::Unit::Priority::Checker.need_to_run?(test)
    end
    assert_in_delta(expected, n_need_to_run.to_f / n, delta)
  end

  class TestClassName < self
    def test_colon
      assert_escaped_name("Test_colon__colon_Priority", "Test::Priority")
    end

    def test_space
      assert_escaped_name("test_priority", "test priority")
    end

    def test_slash
      assert_escaped_name("test_priority", "test/priority")
    end

    def test_back_slash
      assert_escaped_name("test_priority", "test\/priority")
    end

    def test_question
      assert_escaped_name("#question.predicate", "#question?")
    end

    def test_exclamation
      assert_escaped_name("#exclamation.destructive", "#exclamation!")
    end

    def test_equal
      assert_escaped_name("#equal.equal", "#equal=")
    end

    def assert_escaped_name(expected, class_name)
      checker = Checker.new(nil)
      escaped_class_name = checker.send(:escape_class_name, class_name)
      assert_equal(expected, escaped_class_name)
    end
  end

  class TestFileName < self
    class SpecialNameTestCase < Test::Unit::TestCase
      class << self
        def suite
          Test::Unit::TestSuite.new(name)
        end
      end

      def test_question?
      end

      def test_exclamation!
      end

      def test_equal=
      end

      test "have space" do
      end
    end

    def test_question
      assert_escaped_name("test_colon__#question.predicate_case",
                          "test: #question? case")
    end

    def test_exclamation
      assert_escaped_name("test_colon__#exclamation.destructive_case",
                          "test: #exclamation! case")
    end

    def test_equal
      assert_escaped_name("test_colon__#equal.equal_case",
                          "test: #equal= case")
    end

    def assert_escaped_name(expected, test_method_name)
      checker = Checker.new(SpecialNameTestCase.new(test_method_name))
      passed_file = checker.send(:passed_file)
      method_name_component = File.basename(File.dirname(passed_file))
      assert_equal(expected, method_name_component)
    end
  end
end