gistfile1.rb

# Example - Let's write a function that prints a name

# This is RSpec, it's a testing framework. It's just like ruby in that it's made to be super readable. As you read the code, read it outloud like instructions

# We start with tests first

# We know that we need a function to print names. That's all we need. We
# use tests to keep us focused on the task. You'll write it piece by piece. Instead of writing the whole
# function, we'll break it up into responsibility chunks

# We know we'll need to print a name given to us, so lets write our test

describe NameSpeak do
  context "with a name" do
    it "should print the name" do
      speaker = NameSpeak.new
      response = speaker.speak('Brandon')
      response.should be 'Hello, Brandon!'
    end
  end
end

# At this point we run our test (and it fails obviously)
# Let's write the function

class NameSpeak
  def speak(name)
    puts 'Hello, #{name}!'
  end
end

# At this point our spec passes, but what if they don't provide a name???
# Let's amend our test

describe NameSpeak do
  context "given a name" do
    it "should print the name" do
      speaker = NameSpeak.new
      response = speaker.speak('Brandon')
      response.should be 'Hello, Brandon!'
    end
  end
  
  context "without a name" do
    it "should say a little quip" do
      speaker = NameSpeak.new
      response = speaker.speak
      response.should be 'Hello, Douchebag!'
    end
  end
end

# Again the test will fail (red), let's make it green

class NameSpeak
  def speak(name)
    puts 'Hello, Douchebag!' and return if name.nil?
    puts 'Hello, #{name}!'
  end
end

# and it passes!!