Start transitioning some of the features to cli specs.

spec/functional/chef/cli_spec.rb

@@ -0,0 +1,36 @@
+require "securerandom"
+
+require "support/cli_macro"
+
+require "librarian/chef/cli"
+
+module Librarian
+  module Chef
+    describe Cli do
+      include CliMacro
+
+      describe "init" do
+
+        it "should create a file named Cheffile" do
+          cli! "init"
+
+          Dir.new(pwd).should include "Cheffile"
+        end
+
+      end
+
+      describe "version" do
+
+        it "should print the version" do
+          cli! "version"
+
+          stdout.should == strip_heredoc(<<-STDOUT)
+            librarian-#{VERSION}
+          STDOUT
+        end
+
+      end
+
+    end
+  end
+end

spec/support/cli_macro.rb

@@ -0,0 +1,55 @@
+require "thor"
+
+require "librarian/helpers"
+
+module CliMacro
+
+  class FakeShell < Thor::Shell::Basic
+    def stdout
+      @stdout ||= StringIO.new
+    end
+    def stderr
+      @stderr ||= StringIO.new
+    end
+    def stdin
+      raise "unsupported"
+    end
+  end
+
+  def self.included(base)
+    base.instance_exec do
+      let(:project_path) do
+        project_path = Pathname.new(__FILE__).expand_path
+        project_path = project_path.dirname until project_path.join("Rakefile").exist?
+        project_path
+      end
+      let(:tmp) { project_path.join("tmp/spec/cli") }
+      let(:pwd) { tmp + SecureRandom.hex(8) }
+      let(:shell) { FakeShell.new }
+
+      before { tmp.mkpath }
+      before { pwd.mkpath }
+
+      after  { tmp.rmtree }
+    end
+  end
+
+  def cli!(*args)
+    Dir.chdir(pwd) do
+      described_class.start args, shell: shell
+    end
+  end
+
+  def write_file!(path, content)
+    pwd.join(path).open("wb"){|f| f.write(content)}
+  end
+
+  def strip_heredoc(text)
+    Librarian::Helpers.strip_heredoc(text)
+  end
+
+  def stdout
+    shell.stdout.string
+  end
+
+end