diff --git a/REFERENCE.md b/REFERENCE.md
index 3bb30293..d08c17ac 100644
--- a/REFERENCE.md
+++ b/REFERENCE.md
@@ -28,10 +28,10 @@
 
 ### Data types
 
-* [`Python::Loglevel`](#pythonloglevel): A version type to match all valid versions for python
-* [`Python::Package::Ensure`](#pythonpackageensure): A version type to match all valid versions for python
-* [`Python::Provider`](#pythonprovider): A version type to match all valid versions for python
-* [`Python::Umask`](#pythonumask): A version type to match all valid versions for python
+* [`Python::Loglevel`](#pythonloglevel): A version type to match all valid loglevels for python
+* [`Python::Package::Ensure`](#pythonpackageensure): A version type to match all valid package ensures for python
+* [`Python::Provider`](#pythonprovider): A version type to match all valid provider for python
+* [`Python::Umask`](#pythonumask): A version type to match valid umask for python
 * [`Python::Version`](#pythonversion): A version type to match all valid versions for python
 
 ## Classes
@@ -433,7 +433,7 @@ Default value: `'/etc/gunicorn.d'`
 
 ##### `manage_config_dir`
 
-Data type: `Booloean`
+Data type: `Boolean`
 
 Set if the gunicorn config directory should be created.
 
@@ -872,7 +872,7 @@ Data type: `Array[Stdlib::Absolutepath]`
 
 Specifies the PATH variable.
 
-Default value: `[ '/bin', '/usr/bin', '/usr/sbin', '/usr/local/bin', ]`
+Default value: `['/bin', '/usr/bin', '/usr/sbin', '/usr/local/bin',]`
 
 ##### `environment`
 
@@ -977,7 +977,7 @@ Default value: ``false``
 
 ##### `cwd`
 
-Data type: `Stdlib::Absolutepath`
+Data type: `Optional[Stdlib::Absolutepath]`
 
 The directory from which to run the "pip install" command.
 
@@ -1156,7 +1156,7 @@ Data type: `Array[Stdlib::Absolutepath]`
 
 Specifies the PATH variable
 
-Default value: `[ '/bin', '/usr/bin', '/usr/sbin', '/usr/local/bin', ]`
+Default value: `['/bin', '/usr/bin', '/usr/sbin', '/usr/local/bin',]`
 
 ##### `cwd`
 
@@ -1202,25 +1202,25 @@ Default value: ``undef``
 
 ### `Python::Loglevel`
 
-A version type to match all valid versions for python
+A version type to match all valid loglevels for python
 
 Alias of `Enum['debug', 'info', 'warning', 'error', 'critical']`
 
 ### `Python::Package::Ensure`
 
-A version type to match all valid versions for python
+A version type to match all valid package ensures for python
 
 Alias of `Enum['absent', 'present', 'latest']`
 
 ### `Python::Provider`
 
-A version type to match all valid versions for python
+A version type to match all valid provider for python
 
 Alias of `Enum['pip', 'scl', 'rhscl', 'anaconda', '']`
 
 ### `Python::Umask`
 
-A version type to match all valid versions for python
+A version type to match valid umask for python
 
 Alias of `Pattern[/[0-7]{1,4}/]`
 
diff --git a/manifests/requirements.pp b/manifests/requirements.pp
index 836e9097..9d245be3 100644
--- a/manifests/requirements.pp
+++ b/manifests/requirements.pp
@@ -10,7 +10,7 @@
 # @param src Pip --src parameter to; if the requirements file contains --editable resources, this parameter specifies where they will be installed. See the pip documentation for more.
 # @param environment Additional environment variables required to install the packages.
 # @param forceupdate Run a pip install requirements even if we don't receive an event from the requirements file - Useful for when the requirements file is written as part of a resource other than file (E.g vcsrepo)
-# @param cwd  The directory from which to run the "pip install" command.
+# @param cwd The directory from which to run the "pip install" command.
 # @param extra_pip_args Extra arguments to pass to pip after the requirements file
 # @param manage_requirements Create the requirements file if it doesn't exist.
 # @param fix_requirements_owner Change owner and group of requirements file.
@@ -35,7 +35,7 @@
   Any                                          $src                    = false,
   Array                                        $environment            = [],
   Boolean                                      $forceupdate            = false,
-  Stdlib::Absolutepath                         $cwd                    = undef,
+  Optional[Stdlib::Absolutepath]               $cwd                    = undef,
   String                                       $extra_pip_args         = '',
   Boolean                                      $manage_requirements    = true,
   Boolean                                      $fix_requirements_owner = true,
diff --git a/spec/defines/requirements_spec.rb b/spec/defines/requirements_spec.rb
index 97858b7d..84204a43 100644
--- a/spec/defines/requirements_spec.rb
+++ b/spec/defines/requirements_spec.rb
@@ -2,7 +2,6 @@
 
 describe 'python::requirements', type: :define do
   on_supported_os.each do |os, facts|
-    next if os == 'gentoo-3-x86_64'
     context "on #{os}" do
       let :facts do
         facts
@@ -15,8 +14,7 @@
       context 'with /requirements.txt' do
         let :params do
           {
-            requirements: '/requirements.txt',
-            cwd: '/foo'
+            requirements: '/requirements.txt'
           }
         end
 
@@ -35,8 +33,7 @@
           let :params do
             {
               owner: 'bob',
-              group: 'bob',
-              cwd: '/foo'
+              group: 'bob'
             }
           end
 
@@ -44,17 +41,24 @@
         end
       end
 
-      context 'default' do
-        let :params do
-          {
-            'cwd': '/foo'
-          }
-        end
+      context 'without parameters' do
+        it { is_expected.to compile.with_all_deps }
+        it { is_expected.to contain_class('python::config') }
+        it { is_expected.to contain_class('python::install') }
+        it { is_expected.to contain_class('python::params') }
+        it { is_expected.to contain_class('python') }
+        it { is_expected.to contain_exec('python_requirements/requirements.txt') }
+        it { is_expected.to contain_package('pip') }
+        it { is_expected.to contain_package('python') }
+        it { is_expected.to contain_package('virtualenv') }
+        it { is_expected.to contain_package('gunicorn') }
         it { is_expected.to contain_file('/requirements.txt').with_owner('root').with_group('root') }
-      end
 
-      describe 'without cwd' do
-        it { is_expected.to compile.and_raise_error(%r{parameter 'cwd' expects a Stdlib::Absolutepath}) }
+        if facts[:os]['name'] == 'Gentoo'
+          it { is_expected.not_to contain_package('python-dev') }
+        else
+          it { is_expected.to contain_package('python-dev') }
+        end
       end
     end
   end