CLI#edit edits a file and returns the contents

lib/springpad.rb

@@ -1,6 +1,7 @@
 require_relative "springpad/version"
 require_relative "springpad/api"
 require_relative "springpad/blocks"
+require_relative "springpad/cli"
 
 module Springpad
 end

lib/springpad/cli.rb

@@ -0,0 +1,15 @@
+require 'tempfile'
+
+module Springpad
+  class CLI
+    # Public: Edits a file with $EDITOR and returns the contents.
+    #
+    # Returns an Array with the first line and an array of the other lines.
+    def edit
+      temp_file = Tempfile.new('block')
+      system("$EDITOR #{temp_file.path}")
+      contents = temp_file.read.chomp.split("\n").reject(&:empty?).map(&:strip)
+      [contents.first, contents[1..-1]]
+    end
+  end
+end

test/springpad/cli_test.rb

@@ -0,0 +1,24 @@
+require 'test_helper'
+
+module Springpad
+  describe CLI do
+    describe "#edit" do
+      it 'edits a file and returns the contents' do
+        cli = CLI.new
+
+        Tempfile.stubs(:new).returns file = stub_everything
+        file.stubs(:path).returns "/tmp/something"
+        file.stubs(:read).returns """Name of the task  \n\n This is a description of the task\nThis is more body for the task\n"
+        cli.expects(:system).with("$EDITOR /tmp/something")
+
+        cli.edit.must_equal [
+          "Name of the task",
+          [
+            "This is a description of the task",
+            "This is more body for the task",
+          ]
+        ]
+      end
+    end
+  end
+end