Mumbling.rb

# My Solution
#
def accum(s)
  total_string = ""
  for i in 0...s.length
    total_string += s[i].upcase + s[i].downcase * i + "-"
  end
  total_string[0...total_string.length-1]
end

# Best Solution

# def accum(s)
#   s.chars.each_with_index.map{ |c, i| c.upcase + c.downcase * i }.join('-')
# end

# Test Case

# Test.describe("accum") do
#   Test.it("Basic tests") do
#     Test.assert_equals(accum("ZpglnRxqenU"), "Z-Pp-Ggg-Llll-Nnnnn-Rrrrrr-Xxxxxxx-Qqqqqqqq-Eeeeeeeee-Nnnnnnnnnn-Uuuuuuuuuuu")
#     Test.assert_equals(accum("NyffsGeyylB"), "N-Yy-Fff-Ffff-Sssss-Gggggg-Eeeeeee-Yyyyyyyy-Yyyyyyyyy-Llllllllll-Bbbbbbbbbbb")
#     Test.assert_equals(accum("MjtkuBovqrU"), "M-Jj-Ttt-Kkkk-Uuuuu-Bbbbbb-Ooooooo-Vvvvvvvv-Qqqqqqqqq-Rrrrrrrrrr-Uuuuuuuuuuu")
#     Test.assert_equals(accum("EvidjUnokmM"), "E-Vv-Iii-Dddd-Jjjjj-Uuuuuu-Nnnnnnn-Oooooooo-Kkkkkkkkk-Mmmmmmmmmm-Mmmmmmmmmmm")
#     Test.assert_equals(accum("HbideVbxncC"), "H-Bb-Iii-Dddd-Eeeee-Vvvvvv-Bbbbbbb-Xxxxxxxx-Nnnnnnnnn-Cccccccccc-Ccccccccccc")
#   end
# end