#!/usr/bin/env ruby
gem 'minitest', '>= 5.0.0'
require 'minitest/autorun'
require_relative 'luhn'

# Common test data version: c826372
class LuhnTest < Minitest::Test
  def test_single_digit_strings_can_not_be_valid
    # skip
    refute Luhn.valid?("1")
  end

  def test_a_single_zero_is_invalid
    skip
    refute Luhn.valid?("0")
  end

  def test_a_simple_valid_sin_that_remains_valid_if_reversed
    skip
    assert Luhn.valid?("059")
  end

  def test_a_simple_valid_sin_that_becomes_invalid_if_reversed
    skip
    assert Luhn.valid?("59")
  end

  def test_a_valid_canadian_sin
    skip
    assert Luhn.valid?("055 444 285")
  end

  def test_invalid_canadian_sin
    skip
    refute Luhn.valid?("055 444 286")
  end

  def test_invalid_credit_card
    skip
    refute Luhn.valid?("8273 1232 7352 0569")
  end

  def test_valid_strings_with_a_non_digit_included_become_invalid
    skip
    refute Luhn.valid?("055a 444 285")
  end

  def test_valid_strings_with_punctuation_included_become_invalid
    skip
    refute Luhn.valid?("055-444-285")
  end

  def test_valid_strings_with_symbols_included_become_invalid
    skip
    refute Luhn.valid?("055£ 444$ 285")
  end

  def test_single_zero_with_space_is_invalid
    skip
    refute Luhn.valid?(" 0")
  end

  def test_more_than_a_single_zero_is_valid
    skip
    assert Luhn.valid?("0000 0")
  end

  def test_input_digit_9_is_correctly_converted_to_output_digit_9
    skip
    assert Luhn.valid?("091")
  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
    skip
    assert_equal 1, BookKeeping::VERSION
  end
end