hello.rb

class Person
    def initialize(name)
    	@name = name
	end
	def greet
            "Hi there, #{@name}!"
	end
    end
end

hello_spec.rb

require "./hello"

describe Person do
    it "greets a person" do
        person = Person.new("Bob")
    	person.greet.should == "Hi there, Bob!"
    end
    it "greets another person" do
        person = Person.new("Sally")
        person.greet.should == "Hi there, Sally!"
    end
end