title: describe vs context in rspec. Differences?
body: <p>I've read a little bit about how one should organize rspec code. It seems like "context" is used more for states of objects. In your words, how would you describe how to use "describe" in rspec code?</p>
  
  <p>Here is a snippet of my movie_spec.rb code:</p>
  
  <pre><code>require_relative 'movie'
  
  describe Movie do
  
      before do
          @initial_rank = 10
          @movie = Movie.new("goonies", @initial_rank)
      end
  
  
      it "has a capitalied title" do
          expect(@movie.title) == "Goonies"
      end
  
  
      it "has a string representation" do
          expect(@movie.to_s).to eq("Goonies has a rank of 10")
      end
  
      it "decreases rank by 1 when given a thumbs down" do
          @movie.thumbs_down
          expect(@movie.rank).to eq(@initial_rank - 1)
      end
  
      it "increases rank by 1 when given a thumbs up" do
          @movie.thumbs_up
          expect(@movie.rank).to eq(@initial_rank + 1)
      end
  
      context "created with a default rank" do
          before do
              @movie = Movie.new("goonies")
          end
  
          it "has a rank of 0" do
              expect(@movie.rank).to eq(5)
          end
      end
  </code></pre>