require 'minitest/autorun'
require_relative 'leap'

# Common test data version: 1.1.0 7f4d0d8
class Date
  def leap?
    raise RuntimeError, "Implement this yourself instead of using Ruby's implementation."
  end

  alias gregorian_leap? leap?
  alias julian_leap? leap?
end

class YearTest < Minitest::Test
  def test_year_not_divisible_by_4_common_year
    refute Year.leap?(2015), "Expected 'false', 2015 is not a leap year."
  end

  def test_year_divisible_by_4_not_divisible_by_100_leap_year
    assert Year.leap?(2020), "Expected 'true', 2020 is a leap year."
  end

  def test_year_divisible_by_100_not_divisible_by_400_common_year
    refute Year.leap?(2100), "Expected 'false', 2100 is not a leap year."
  end

  def test_year_divisible_by_400_leap_year
    assert Year.leap?(2000), "Expected 'true', 2000 is a leap year."
  end

  # Problems in exercism evolve over time, as we find better ways to ask
  # questions.
  # The version number refers to the version of the problem you solved,
  # not your solution.
  #
  # Define a constant named VERSION inside of the top level BookKeeping
  # module, which may be placed near the end of your file.
  #
  # In your file, it will look like this:
  #
  # module BookKeeping
  #   VERSION = 1 # Where the version number matches the one in the test.
  # end
  #
  # If you are curious, read more about constants on RubyDoc:
  # http://ruby-doc.org/docs/ruby-doc-bundle/UsersGuide/rg/constants.html

  def test_bookkeeping
    assert_equal 3, BookKeeping::VERSION
  end
end