FizzBuzz.rb

class FizzBuzz

    def initialize
        @fizz = 3
        @buzz = 5
    end

    def convert(num)
        return "FizzBuzz" if isDivisibleBy(@fizz, num) && isDivisibleBy(@buzz, num)
        return "Fizz" if isDivisibleBy(@fizz, num)
        return "Buzz" if isDivisibleBy(@buzz, num)
        num
    end

    def loop()
        for i in 1..100
            puts convert(i)
        end
    end

    def isDivisibleBy(divisor, num)
        num % divisor == 0
    end
end

fb = FizzBuzz.new()
fb.loop()


## TESTS

require "./fizzbuzz"
require "test/unit"

class TestFizzBuzz < Test::Unit::TestCase
    def test_should_return_1_when_1
        assert_equal(1, FizzBuzz.new().convert(1))
    end

    def test_should_return_2_when_2
        assert_equal(2, FizzBuzz.new().convert(2))
    end

    def test_should_return_Fizz_when_3
        assert_equal("Fizz", FizzBuzz.new().convert(3))
    end

    def test_should_return_Buzz_when_5
        assert_equal("Buzz", FizzBuzz.new().convert(5))
    end

    def test_should_return_Fizz_when_6
        assert_equal("Fizz", FizzBuzz.new().convert(6))
    end
    def test_should_return_Fizz_when_9
        assert_equal("Fizz", FizzBuzz.new().convert(9))
    end
    def test_should_return_Buzz_when_10
        assert_equal("Buzz", FizzBuzz.new().convert(10))
    end

def test_should_return_FizzBuzz_when_15
        assert_equal("FizzBuzz", FizzBuzz.new().convert(15))
    end


end