require 'chronic'
require 'test/unit'

class TestRepeaterHour < Test::Unit::TestCase

	def setup
		@now = Time.local(2006, 8, 16, 14, 0, 0, 0)
	end

	def test_next_future
		hours = Chronic::RepeaterHour.new(:hour)
		hours.start = @now

		next_hour = hours.next(:future)
		assert_equal Time.local(2006, 8, 16, 15), next_hour.begin
		assert_equal Time.local(2006, 8, 16, 16), next_hour.end

		next_next_hour = hours.next(:future)
		assert_equal Time.local(2006, 8, 16, 16), next_next_hour.begin
		assert_equal Time.local(2006, 8, 16, 17), next_next_hour.end
	end

	def test_next_past
		hours = Chronic::RepeaterHour.new(:hour)
		hours.start = @now

		past_hour = hours.next(:past)
		assert_equal Time.local(2006, 8, 16, 13), past_hour.begin
		assert_equal Time.local(2006, 8, 16, 14), past_hour.end

		past_past_hour = hours.next(:past)
		assert_equal Time.local(2006, 8, 16, 12), past_past_hour.begin
		assert_equal Time.local(2006, 8, 16, 13), past_past_hour.end
	end

	def test_this
		@now = Time.local(2006, 8, 16, 14, 30)

		hours = Chronic::RepeaterHour.new(:hour)
		hours.start = @now

		this_hour = hours.this(:future)
		assert_equal Time.local(2006, 8, 16, 14, 31), this_hour.begin
		assert_equal Time.local(2006, 8, 16, 15), this_hour.end

		this_hour = hours.this(:past)
		assert_equal Time.local(2006, 8, 16, 14), this_hour.begin
		assert_equal Time.local(2006, 8, 16, 14, 30), this_hour.end
	end

	def test_offset
		span = Chronic::Span.new(@now, @now + 1)

		offset_span = Chronic::RepeaterHour.new(:hour).offset(span, 3, :future)

		assert_equal Time.local(2006, 8, 16, 17), offset_span.begin
		assert_equal Time.local(2006, 8, 16, 17, 0, 1), offset_span.end

		offset_span = Chronic::RepeaterHour.new(:hour).offset(span, 24, :past)

		assert_equal Time.local(2006, 8, 15, 14), offset_span.begin
		assert_equal Time.local(2006, 8, 15, 14, 0, 1), offset_span.end
	end
	def test_sanity
		assert_not_nil Chronic.parse '2 hours ago'
		#    assert_not_nil Chronic.parse '2 hours' # FIXME: this fails
	end
end