A test case that demonstrates #86

First thing's first.

test/integration/cases/cache_path_usage.rb

@@ -0,0 +1,13 @@
+module CachePathUsage
+  def setup
+    super
+    FileUtils.cp_r $base_dir.join('support', 'cache_using_cookbook'), 'cookbooks/cache_using_cookbook'
+  end
+
+  def test_changing_a_cached_directory_between_cooks
+    write_nodefile(run_count: 1, run_list: ["cache_using_cookbook"])
+    assert_subcommand "cook"
+    write_nodefile(run_count: 2, run_list: ["cache_using_cookbook"])
+    assert_subcommand "cook"
+  end
+end

test/integration/ubuntu12_04_test.rb

@@ -12,4 +12,5 @@ def image_id
   include EmptyCook
   include Apache2Cook
   include EncryptedDataBag
+  include CachePathUsage
 end

test/support/cache_using_cookbook/metadata.rb

@@ -0,0 +1,7 @@
+name             'cache_using_cookbook'
+maintainer       'Mat Schaffer'
+maintainer_email '[email protected]'
+license          'MIT'
+description      'Writes some data to the cache path.'
+long_description 'This helps ensure that we can do this multiple times regardless of what user initiates the run.'
+version          '0.1.0'

test/support/cache_using_cookbook/recipes/default.rb

@@ -0,0 +1,33 @@
+#
+# Cookbook Name:: cache_using_cookbook
+# Recipe:: default
+#
+# Copyright 2013, Mat Schaffer
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+container = Chef::Config[:file_cache_path] + "/test_dir"
+
+directory container
+
+file container + "/test_file" do
+  content "This was generated from run #{node['run_count']}"
+end