diff --git a/libraries/dir_utils.rb b/libraries/dir_utils.rb
index 9a7517c1..5c2f5853 100644
--- a/libraries/dir_utils.rb
+++ b/libraries/dir_utils.rb
@@ -1,17 +1,15 @@
 module Ark
   module DirUtils
-
     # Delete all files and directories inside the given directory.
     # @param work_dir Path of the directory to be cleaned up.
     def delete_files_and_directories_inside(work_dir)
       # Ensure we only have "/"-like separators in the provided path
       # (windows path separator is not supported by Dir)
-      directory_content_pattern = ::File.join(work_dir, "*").gsub(%r:\\:, "/")
+      directory_content_pattern = ::File.join(work_dir, '*').gsub(/\\/, '/')
 
       ::Dir[directory_content_pattern].each do |path|
         ::FileUtils.rm_rf(path)
       end
     end
-
   end
 end
diff --git a/spec/resources/default_spec.rb b/spec/resources/default_spec.rb
index b9635103..614198c3 100644
--- a/spec/resources/default_spec.rb
+++ b/spec/resources/default_spec.rb
@@ -136,7 +136,7 @@
     end
 
     def node_attributes
-      { platform: 'windows', version: '2008R2', file_cache_path: "/var/chef/cache" }
+      { platform: 'windows', version: '2008R2', file_cache_path: '/var/chef/cache' }
     end
 
     it 'installs' do
@@ -165,17 +165,17 @@ def node_attributes
     end
   end
 
-  describe "install with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::install_with_clean_up_before_unpack" }
+  describe 'install with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::install_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to install_ark("test_install")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to install_ark('test_install')
 
-      resource = chef_run.directory("/usr/local/test_install-2")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_install-2 before unpack]")
+      resource = chef_run.directory('/usr/local/test_install-2')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_install-2 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_install-2.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_install-2 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_install-2.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_install-2 before unpack]')
     end
   end
 
@@ -198,17 +198,17 @@ def node_attributes
     end
   end
 
-  describe "put with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::put_with_clean_up_before_unpack" }
+  describe 'put with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::put_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to put_ark("test_put")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to put_ark('test_put')
 
-      resource = chef_run.directory("/usr/local/test_put")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_put before unpack]")
+      resource = chef_run.directory('/usr/local/test_put')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_put before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_put.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_put before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_put.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_put before unpack]')
     end
   end
 
@@ -231,17 +231,17 @@ def node_attributes
     end
   end
 
-  describe "dump with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::dump_with_clean_up_before_unpack" }
+  describe 'dump with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::dump_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to dump_ark("test_dump")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to dump_ark('test_dump')
 
-      resource = chef_run.directory("/usr/local/foo_dump")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_dump before unpack]")
+      resource = chef_run.directory('/usr/local/foo_dump')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_dump before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_dump.zip")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_dump before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_dump.zip')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_dump before unpack]')
     end
   end
 
@@ -264,17 +264,17 @@ def node_attributes
     end
   end
 
-  describe "unzip with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::unzip_with_clean_up_before_unpack" }
+  describe 'unzip with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::unzip_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to unzip_ark("test_unzip")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to unzip_ark('test_unzip')
 
-      resource = chef_run.directory("/usr/local/foo_dump")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_dump before unpack]")
+      resource = chef_run.directory('/usr/local/foo_dump')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_dump before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_unzip.zip")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_dump before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_unzip.zip')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_dump before unpack]')
     end
   end
 
@@ -300,17 +300,17 @@ def node_attributes
     end
   end
 
-  describe "cherry_pick with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::cherry_pick_with_clean_up_before_unpack" }
+  describe 'cherry_pick with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::cherry_pick_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to cherry_pick_ark("test_cherry_pick")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to cherry_pick_ark('test_cherry_pick')
 
-      resource = chef_run.directory("/usr/local/foo_cherry_pick")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_cherry_pick before unpack]")
+      resource = chef_run.directory('/usr/local/foo_cherry_pick')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_cherry_pick before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_cherry_pick.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/foo_cherry_pick before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_cherry_pick.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/foo_cherry_pick before unpack]')
     end
   end
 
@@ -338,17 +338,17 @@ def node_attributes
     end
   end
 
-  describe "setup_py_build with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::setup_py_build_with_clean_up_before_unpack" }
+  describe 'setup_py_build with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::setup_py_build_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to setup_py_build_ark("test_setup_py_build")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to setup_py_build_ark('test_setup_py_build')
 
-      resource = chef_run.directory("/usr/local/test_setup_py_build-1")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py_build-1 before unpack]")
+      resource = chef_run.directory('/usr/local/test_setup_py_build-1')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py_build-1 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_setup_py_build-1.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py_build-1 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_setup_py_build-1.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py_build-1 before unpack]')
     end
   end
 
@@ -373,17 +373,17 @@ def node_attributes
     end
   end
 
-  describe "setup_py_install with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::setup_py_install_with_clean_up_before_unpack" }
+  describe 'setup_py_install with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::setup_py_install_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to setup_py_install_ark("test_setup_py_install")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to setup_py_install_ark('test_setup_py_install')
 
-      resource = chef_run.directory("/usr/local/test_setup_py_install-1")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py_install-1 before unpack]")
+      resource = chef_run.directory('/usr/local/test_setup_py_install-1')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py_install-1 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_setup_py_install-1.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py_install-1 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_setup_py_install-1.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py_install-1 before unpack]')
     end
   end
 
@@ -408,17 +408,17 @@ def node_attributes
     end
   end
 
-  describe "setup_py with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::setup_py_with_clean_up_before_unpack" }
+  describe 'setup_py with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::setup_py_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to setup_py_ark("test_setup_py")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to setup_py_ark('test_setup_py')
 
-      resource = chef_run.directory("/usr/local/test_setup_py-1")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py-1 before unpack]")
+      resource = chef_run.directory('/usr/local/test_setup_py-1')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py-1 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_setup_py-1.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_setup_py-1 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_setup_py-1.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_setup_py-1 before unpack]')
     end
   end
 
@@ -452,17 +452,17 @@ def node_attributes
     end
   end
 
-  describe "install_with_make with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::install_with_make_with_clean_up_before_unpack" }
+  describe 'install_with_make with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::install_with_make_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to install_with_make_ark("test_install_with_make")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to install_with_make_ark('test_install_with_make')
 
-      resource = chef_run.directory("/usr/local/test_install_with_make-1.5")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_install_with_make-1.5 before unpack]")
+      resource = chef_run.directory('/usr/local/test_install_with_make-1.5')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_install_with_make-1.5 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_install_with_make-1.5.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_install_with_make-1.5 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_install_with_make-1.5.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_install_with_make-1.5 before unpack]')
     end
   end
 
@@ -492,17 +492,17 @@ def node_attributes
     end
   end
 
-  describe "configure with clean_up_before_unpack == true", wip: true do
-    let(:example_recipe) { "ark_spec::configure_with_clean_up_before_unpack" }
+  describe 'configure with clean_up_before_unpack == true', wip: true do
+    let(:example_recipe) { 'ark_spec::configure_with_clean_up_before_unpack' }
 
-    it "cleans up target directory before to unpack the archive" do
-      expect(chef_run).to configure_ark("test_configure")
+    it 'cleans up target directory before to unpack the archive' do
+      expect(chef_run).to configure_ark('test_configure')
 
-      resource = chef_run.directory("/usr/local/test_configure-1")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_configure-1 before unpack]")
+      resource = chef_run.directory('/usr/local/test_configure-1')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_configure-1 before unpack]')
 
-      resource = chef_run.remote_file("/var/chef/cache/test_configure-1.tar.gz")
-      expect(resource).to notify("ruby_block[clean up /usr/local/test_configure-1 before unpack]")
+      resource = chef_run.remote_file('/var/chef/cache/test_configure-1.tar.gz')
+      expect(resource).to notify('ruby_block[clean up /usr/local/test_configure-1 before unpack]')
     end
   end
 end