Add additional unit-test; configure inheritance of param

Author: vegaaz

spec/classes/init_spec.rb

@@ -30,6 +30,9 @@
     'docker_msft_provider_version'   => '123',
     'nuget_package_provider_version' => '41',
   },
+  'with keyring set to optional path' => {
+    'keyring' => '/root/keyrings/docker.gpg',
+  },
 }
 
 describe 'docker', type: :class do
@@ -180,6 +183,7 @@
             'tmp_dir'                           => defaults['tmp_dir'],
             'use_upstream_package_source'       => defaults['use_upstream_package_source'],
             'version'                           => defaults['version'],
+            'keyring'                           => defaults['keyring']
           }.merge(default_params).merge(local_params)
 
           let(:facts) do

spec/helper/get_defaults.rb

@@ -88,6 +88,7 @@ def get_defaults(_facts)
   tmp_dir                           = '/tmp/'
   tmp_dir_config                    = true
   version                           = :undef
+  keyring                           = '/etc/apt/keyrings/docker.gpg'
 
   if _facts[:os]['family'] == 'windows'
     compose_install_path   = "#{_facts['docker_program_files_path']}/Docker"
@@ -487,5 +488,6 @@ def get_defaults(_facts)
     'tmp_dir_config' => tmp_dir_config,
     'use_upstream_package_source' => use_upstream_package_source,
     'version' => version,
+    'keyring' => keyring,
   }
 end

spec/shared_examples/repos.rb

@@ -11,6 +11,7 @@
   key_source       = values['package_key_source']
   key_check_source = values['package_key_check_source']
   architecture     = facts[:os]['architecture']
+  keyring          = params['keyring']
 
   unless params['prerequired_packages'].empty?
     params['prerequired_packages'].each do |package|
@@ -29,13 +30,21 @@
     if params['use_upstream_package_source']
       # check if debian version is atleast 10 and ubuntu version is atleast 22
       if ( facts[:operatingsystem] == 'Debian' and facts[:operatingsystemrelease] =~ /1[0-9]/ ) or ( facts[:operatingsystem] == 'Ubuntu' and facts[:operatingsystemrelease] =~ /2[2-9]/ )
+        it {
+          is_expected.to contain_file(keyring).with(
+            'ensure'  => 'file',
+            'mode'    => '0644',
+            'owner'   => 'root',
+            'group'   => 'root',
+          )
+        }    
         it {
           is_expected.to contain_apt__source('docker').with(
             'location'     => location,
             'architecture' => architecture,
             'release'      => release,
             'repos'        => package_repos,
-            'keyring'      => '/etc/apt/keyrings/docker.gpg',
+            'keyring'      => keyring,
             'include' => {
               'src' => false,
             },