1. Download `devowelr.rb` 2. Make sure you can run it from the terminal `ruby ./devowelr.rb` 3. Make sure the result on the first run looks something like the first run below 4. Write code and run the tests until you get as many as possible green :)

devowelr.rb

#!/usr/bin/env ruby

#
# Write a method that takes in a string and returns it
# with all the vowels removed
#

def devowel(string)
  # Write code here...
end

# -------------------------------------
# Don't worry about anything below here
# -------------------------------------

class MicroTest

  def self.test
    yield test = new
    test.puts_totals
  end

  def initialize
    @pass_count = 0
    @fail_count = 0
  end

  def puts_totals
    puts "---"
    puts_pass "Passed: #{@pass_count}" if @pass_count > 0
    puts_fail "Failed: #{@fail_count}" if @fail_count > 0
  end

  def assert_returns(method, input, expected)
    call_name = "devowel(#{input.inspect})"
    actual = send method, input rescue (puts_fail "#{call_name} raised exception #{$!}"; return)
    if actual == expected
      @pass_count += 1
      puts_pass "#{call_name} returned #{actual.inspect}"
    else
      @fail_count += 1
      puts_fail "Expected #{call_name} to return #{expected.inspect}"
      puts_fail "\t Returned #{actual.inspect} instead."
    end
  ensure
    puts
  end

private

  def puts_pass(message)
    puts_color message, '32'
  end

  def puts_fail(message)
    puts_color message, '31'
  end

  def puts_color(message, color_code)
    puts "\e[0;#{color_code}m" << message << "\e[0m"
  end

end

MicroTest.test do |test|
  test.assert_returns :devowel, 'flicker',    'flckr'
  test.assert_returns :devowel, 'aaa',        ''
  test.assert_returns :devowel, 'aeiou',      ''
  test.assert_returns :devowel, 'google',     'ggl'
  test.assert_returns :devowel, 'Sage Harris','Sg Hrrs'
  test.assert_returns :devowel, nil,           nil
  test.assert_returns :devowel, 1.2,           1.2
  test.assert_returns :devowel, ['a', 'Dan'], ['a', 'Dan']
  test.assert_returns :devowel, 'Dåñîêl',     'Dñl'
  rand_string = ("a" * rand(10)) + ("b" * rand(5))
  test.assert_returns :devowel, rand_string,     rand_string.delete('a') # hmmm, this could be helpful
end

firstrun

$ ruby ./devowelr.rb 
Expected devowel("flicker") to return "flckr"
   Returned nil instead.

Expected devowel("aaa") to return ""
	 Returned nil instead.

Expected devowel("aeiou") to return ""
	 Returned nil instead.

Expected devowel("google") to return "ggl"
	 Returned nil instead.

Expected devowel("Daniel") to return "Dnl"
	 Returned nil instead.

Expected devowel("Dåñîêl") to return "Dñl"
	 Returned nil instead.

devowel(nil) returned nil

Expected devowel(1.2) to return 1.2
	 Returned nil instead.

Expected devowel(["a", "Dan"]) to return ["a", "Dan"]
	 Returned nil instead.

---
Passed: 1
Failed: 8