Add 'http://' to a url

url_add_protocol.rb

require 'rspec'

# Got REGEX from:
# http://stackoverflow.com/questions/7908598/add-https-to-url-if-its-not-there

def add_url_protocol(url)
  if url[/^https?:\/\//]
    url
  else
    "http://#{url}"
  end
end

RSpec.describe "http_method" do
  it "leaves url the same if it has 'http://'" do
    url = "http://www.espn.com"
    expect(add_url_protocol(url)).to eq(url)
  end
  
  it "leaves url the same if it has 'https://'" do
    url = "https://www.espn.com"
    expect(add_url_protocol(url)).to eq(url)
  end
  
  it "adds 'http://' if not there" do
    url = "www.espn.com"
    new_url = "http://www.espn.com"
    expect(add_url_protocol(url)).to eq(new_url)
  end
end