require 'minitest/autorun'
require_relative 'difference_of_squares'

# Common test data version: 1.1.0 7a1108b
class DifferenceOfSquaresTest < Minitest::Test
  def test_square_of_sum_1
    assert_equal 1, Squares.new(1).square_of_sum
  end

  def test_square_of_sum_5
    assert_equal 225, Squares.new(5).square_of_sum
  end

  def test_square_of_sum_100
    assert_equal 25_502_500, Squares.new(100).square_of_sum
  end

  def test_sum_of_squares_1
    assert_equal 1, Squares.new(1).sum_of_squares
  end

  def test_sum_of_squares_5
    assert_equal 55, Squares.new(5).sum_of_squares
  end

  def test_sum_of_squares_100
    assert_equal 338_350, Squares.new(100).sum_of_squares
  end

  def test_difference_of_squares_1
    assert_equal 0, Squares.new(1).difference
  end

  def test_difference_of_squares_5
    assert_equal 170, Squares.new(5).difference
  end

  def test_difference_of_squares_100
    assert_equal 25_164_150, Squares.new(100).difference
  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 4, BookKeeping::VERSION
  end
end