Merge pull request #42 from thoughtbot/mr/introduce-distributors

Introduce Gold Miner distributors

exe/gold_miner

@@ -19,7 +19,8 @@ GoldMiner
   .fmap { |gold_container|
     debug "Found #{gold_container.gold_nuggets.size} messages in #{Time.now - t0} seconds."
 
-    puts GoldMiner.smith_blog_post(gold_container)
+    blog_post = GoldMiner.smith_blog_post(gold_container)
+    GoldMiner.distribute(blog_post)
   }
   .or { |error| abort "[ERROR] #{error}" }
 

lib/gold_miner.rb

@@ -20,6 +20,10 @@ def smith_blog_post(gold_container, ...)
     BlogPostSmith.new(...).smith(gold_container)
   end
 
+  def distribute(blog_post)
+    TerminalDistributor.new.distribute(blog_post)
+  end
+
   private
 
   def prepare(slack_client)

lib/gold_miner/terminal_distributor.rb

@@ -0,0 +1,7 @@
+module GoldMiner
+  class TerminalDistributor
+    def distribute(blog_post)
+      puts blog_post
+    end
+  end
+end

spec/gold_miner/terminal_distributor_spec.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+RSpec.describe GoldMiner::TerminalDistributor do
+  it_behaves_like "distributor"
+
+  describe "#distribute" do
+    it "prints the blog post to STDOUT" do
+      blog_post = double("blog_post", to_s: "A blog post")
+
+      expect { subject.distribute(blog_post) }.to output("A blog post\n").to_stdout
+    end
+  end
+end

spec/support/behaves_like_distributor.rb

@@ -0,0 +1,3 @@
+RSpec.shared_examples "distributor" do
+  it { is_expected.to respond_to(:distribute) }
+end