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diff --git a/spec/unit/run_list/versioned_recipe_list_spec.rb b/spec/unit/run_list/versioned_recipe_list_spec.rb
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+#
+# Author:: Stephen Delano (<stephen@opscode.com>)
+# Copyright:: Copyright (c) 2010 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+require 'spec_helper'
+
+describe Chef::RunList::VersionedRecipeList do
+
+  describe "initialize" do
+    it "should create an empty array" do
+      l = Chef::RunList::VersionedRecipeList.new
+      l.should == []
+    end
+  end
+
+  describe "add_recipe" do
+    before(:each) do
+      @list = Chef::RunList::VersionedRecipeList.new
+      @list << "apt"
+      @list << "god"
+      @list << "apache2"
+    end
+
+    it "should append the recipe to the end of the list" do
+      @list.add_recipe "rails"
+      @list.should == ["apt", "god", "apache2", "rails"]
+    end
+
+    it "should not duplicate entries" do
+      @list.add_recipe "apt"
+      @list.should == ["apt", "god", "apache2"]
+    end
+
+    it "should allow you to specify a version" do
+      @list.add_recipe "rails", "1.0.0"
+      @list.should == ["apt", "god", "apache2", "rails"]
+      @list.with_versions.should include({:name => "rails", :version => "1.0.0"})
+    end
+
+    it "should allow you to specify a version for a recipe that already exists" do
+      @list.add_recipe "apt", "1.2.3"
+      @list.should == ["apt", "god", "apache2"]
+      @list.with_versions.should include({:name => "apt", :version => "1.2.3"})
+    end
+
+    it "should allow you to specify the same version of a recipe twice" do
+      @list.add_recipe "rails", "1.0.0"
+      @list.add_recipe "rails", "1.0.0"
+      @list.with_versions.should include({:name => "rails", :version => "1.0.0"})
+    end
+
+    it "should allow you to spcify no version, even when a version already exists" do
+      @list.add_recipe "rails", "1.0.0"
+      @list.add_recipe "rails"
+      @list.with_versions.should include({:name => "rails", :version => "1.0.0"})
+    end
+
+    it "should not allow multiple versions of the same recipe" do
+      @list.add_recipe "rails", "1.0.0"
+      lambda {@list.add_recipe "rails", "0.1.0"}.should raise_error Chef::Exceptions::CookbookVersionConflict
+    end
+  end
+
+  describe "with_versions" do
+    before(:each) do
+      @recipes = [
+        {:name => "apt", :version => "1.0.0"},
+        {:name => "god", :version => nil},
+        {:name => "apache2", :version => "0.0.1"}
+      ]
+      @list = Chef::RunList::VersionedRecipeList.new
+      @recipes.each {|i| @list.add_recipe i[:name], i[:version]}
+    end
+
+    it "should return an array of hashes with :name and :version" do
+      @list.with_versions.should == @recipes
+    end
+
+    it "should retain the same order as the version-less list" do
+      with_versions = @list.with_versions
+      @list.each_with_index do |item, index|
+        with_versions[index][:name].should == item
+      end
+    end
+  end
+
+  describe "with_version_constraints" do
+    before(:each) do
+      @recipes = [
+                  {:name => "apt", :version => "~> 1.2.0"},
+                  {:name => "god", :version => nil},
+                  {:name => "apache2", :version => "0.0.1"}
+                 ]
+      @list = Chef::RunList::VersionedRecipeList.new
+      @recipes.each {|i| @list.add_recipe i[:name], i[:version]}
+      @constraints = @recipes.map do |x|
+        { :name => x[:name],
+          :version_constraint => Chef::VersionConstraint.new(x[:version])
+        }
+      end
+    end
+
+    it "should return an array of hashes with :name and :version_constraint" do
+      @list.with_version_constraints.each do |x|
+        x.should have_key :name
+        x[:version_constraint].should_not be nil
+      end
+    end
+  end
+end