Define #size for Bundler::SpecSet

see also: rubygems/bundler#4368

lib/chef-dk/component_test.rb

@@ -18,6 +18,15 @@
 require 'chef-dk/exceptions'
 require 'chef-dk/helpers'
 
+# https://github.com/bundler/bundler/issues/4368
+module Bundler
+  class SpecSet
+
+    alias_method :size, :length
+
+  end
+end
+
 module ChefDK
   class ComponentTest
 
@@ -148,8 +157,8 @@ def gem_base_dir
       # So we first ask if there is a normal version, and if there is not, we ask if there
       # is a prerelease version.  ">= 0.a" is how we ask for a prerelease version, because a
       # prerelease version is defined as "any version with a letter in it."
-      gem = Gem::Specification::find_by_name(@gem_name_for_base_dir)
-      gem ||= Gem::Specification::find_by_name(@gem_name_for_base_dir, '>= 0.a')
+      gem = Gem::Specification.find_by_name(@gem_name_for_base_dir)
+      gem ||= Gem::Specification.find_by_name(@gem_name_for_base_dir, '>= 0.a')
       gem.gem_dir
     end