diff --git a/CHANGELOG.md b/CHANGELOG.md
index f68e041..a63a4d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 All notable changes to this project will be documented in this file.
 
+## Release 1.0.0
+
+First Major Release
+
+**Features**
+
+- Add unit tests
+
 ## Release 0.1.4
 
 **Bug fixes**
diff --git a/README.md b/README.md
index 8e00ae3..1e378d5 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ storj::storage: '[THE DEDICATED ANOUT OF STORAGE]'
 storj::storage_path: '[THE DEDICATED STORAGE LOCATION]'
 ```
 
-### Examples
+## Examples
 
 #### Default installation
 
diff --git a/REFERENCE.md b/REFERENCE.md
index c033846..ac98f7b 100644
--- a/REFERENCE.md
+++ b/REFERENCE.md
@@ -172,7 +172,7 @@ Group under which storj is running.
 
 Default value: 'storj'
 
-##### `usershell`
+##### `user_shell`
 
 Data type: `Stdlib::Absolutepath`
 
@@ -406,13 +406,13 @@ Group under which storj is running.
 
 Default value: $storj::group
 
-##### `usershell`
+##### `user_shell`
 
 Data type: `Stdlib::Absolutepath`
 
 if requested, we create a user for storj. The default shell is false. It can be overwritten to any valid path.
 
-Default value: $storj::usershell
+Default value: $storj::user_shell
 
 ##### `extra_groups`
 
diff --git a/manifests/init.pp b/manifests/init.pp
index c265e8b..5f2d071 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -40,7 +40,7 @@
 #  User running storj.
 # @param group
 #  Group under which storj is running.
-# @param usershell
+# @param user_shell
 #  if requested, we create a user for storj. The default shell is false. It can be overwritten to any valid path.
 # @param extra_groups
 #  Add other groups to the managed user.
@@ -82,7 +82,7 @@
   Boolean                                          $manage_group       = true,
   String                                           $user               = 'storj',
   String                                           $group              = 'storj',
-  Stdlib::Absolutepath                             $usershell          = '/bin/false',
+  Stdlib::Absolutepath                             $user_shell         = '/bin/false',
   Array[String]                                    $extra_groups       = [],
 
   # Service
diff --git a/manifests/install.pp b/manifests/install.pp
index 7830880..0471e8d 100644
--- a/manifests/install.pp
+++ b/manifests/install.pp
@@ -26,7 +26,7 @@
 #  User running storj.
 # @param group
 #  Group under which storj is running.
-# @param usershell
+# @param user_shell
 #  if requested, we create a user for storj. The default shell is false. It can be overwritten to any valid path.
 # @param extra_groups
 #  Add other groups to the managed user.
@@ -48,7 +48,7 @@
   Boolean                  $manage_group       = $storj::manage_group,
   String                   $user               = $storj::user,
   String                   $group              = $storj::group,
-  Stdlib::Absolutepath     $usershell          = $storj::usershell,
+  Stdlib::Absolutepath     $user_shell         = $storj::user_shell,
   Array[String]            $extra_groups       = $storj::extra_groups,
 ) {
   ensure_packages('unzip', { ensure => 'present' })
@@ -65,7 +65,10 @@
   }
   file {
     "${base_dir}/storj-${version}.${os}-${arch}":
-      ensure => 'directory';
+      ensure => 'directory',
+      owner  => 'root',
+      group  => 0, # 0 instead of root because OS X uses "wheel".
+      mode   => '0755';
     "${base_dir}/storj-${version}.${os}-${arch}/identity":
       owner => 'root',
       group => 0, # 0 instead of root because OS X uses "wheel".
@@ -85,7 +88,7 @@
       ensure => 'present',
       system => true,
       groups => concat([$group, 'docker'], $extra_groups),
-      shell  => $usershell,
+      shell  => $user_shell,
     })
 
     User[$user] -> File[$config_dir]
diff --git a/manifests/service.pp b/manifests/service.pp
index ae50e4c..1b63684 100644
--- a/manifests/service.pp
+++ b/manifests/service.pp
@@ -37,7 +37,7 @@
   String                                           $mail           = $storj::mail,
   Stdlib::Host                                     $host           = $storj::host,
   String                                           $storage        = $storj::storage,
-  Stdlib::Absolutepath                             $config_dir   = $storj::config_dir,
+  Stdlib::Absolutepath                             $config_dir     = $storj::config_dir,
   Stdlib::Absolutepath                             $storage_path   = $storj::storage_path,
   String                                           $docker_tag     = $storj::docker_tag,
 ) {
diff --git a/metadata.json b/metadata.json
index a2cff61..d4a9878 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "maeq-storj",
-  "version": "0.1.4",
+  "version": "1.0.0",
   "author": "maeq",
   "summary": "This module install and configure Storj storagenode",
   "license": "Apache-2.0",
diff --git a/spec/classes/storj_spec.rb b/spec/classes/storj_spec.rb
index deabcba..84bb426 100644
--- a/spec/classes/storj_spec.rb
+++ b/spec/classes/storj_spec.rb
@@ -25,10 +25,189 @@
             parameters
           end
 
+          s_os = os_facts[:kernel].downcase
+
+          s_arch = case os_facts[:architecture]
+                   when 'aarch64'
+                     'arm64'
+                   when 'armv7l'
+                     'arm'
+                   else
+                     'amd64'
+                   end
+
+          authorization_token = parameters[:authorization_token]
+          wallet = parameters[:wallet]
+          mail = parameters[:mail]
+          host = parameters[:host]
+          storage = parameters[:storage]
+          storage_path = parameters[:storage_path]
+          version = parameters[:version]
+          base_dir = parameters[:base_dir] || '/opt'
+          bin_dir = parameters[:bin_dir] || '/usr/local/bin'
+          base_url = parameters[:base_url] || 'https://github.com/storj/storj/releases/download'
+          download_extension = parameters[:download_extension] || 'zip'
+          download_url = parameters[:download_url] || "#{base_url}/v#{version}/identity_#{s_os}_#{s_arch}.#{download_extension}"
+          extract_command = parameters[:extract_command] || nil
+          config_dir = parameters[:config_dir] || '/etc/storj'
+          manage_user = parameters[:manage_user].nil? ? true : parameters[:manage_user]
+          manage_group = parameters[:manage_group].nil? ? true : parameters[:manage_group]
+          user = parameters[:user] || 'storj'
+          group = parameters[:group] || 'storj'
+          user_shell = parameters[:user_shell] || '/bin/false'
+          extra_groups = parameters[:extra_groups] || []
+          service_ensure = parameters[:service_ensure] || 'running'
+          docker_tag = parameters[:docker_tag] || 'beta'
+          port = parameters[:port] || 28_967
+          dashboard_port = parameters[:dashboard_port] || 14_002
+          manage_docker = parameters[:manage_docker].nil? ? true : parameters[:manage_docker]
+
+          case service_ensure
+          when 'running'
+            file_ensure = 'file'
+            service_ensure = 'running'
+          when 'stopped'
+            file_ensure = 'file'
+            service_ensure = 'stopped'
+          else
+            file_ensure = 'absent'
+            service_ensure = 'stopped'
+          end
+
           # Compilation
           it {
             is_expected.to compile
           }
+
+          # Implementation
+          it {
+            is_expected.to contain_class('storj::install')
+            is_expected.to contain_class('storj::config')
+            is_expected.to contain_class('storj::service')
+
+            if manage_docker
+              is_expected.to contain_class('docker')
+            else
+              is_expected.not_to contain_class('docker')
+            end
+          }
+
+          # Install
+          it {
+            is_expected.to contain_file("#{base_dir}/storj-#{version}.#{s_os}-#{s_arch}").with(
+              'ensure' => 'directory',
+              'owner'  => 'root',
+              'group'  => '0',
+              'mode'   => '0755',
+            )
+            is_expected.to contain_archive("/tmp/identity_#{version}.#{download_extension}").with(
+              'ensure'          => 'present',
+              'extract'         => true,
+              'extract_path'    => "#{base_dir}/storj-#{version}.#{s_os}-#{s_arch}",
+              'source'          => download_url,
+              'checksum_verify' => false,
+              'creates'         => "#{base_dir}/storj-#{version}.#{s_os}-#{s_arch}/identity",
+              'cleanup'         => true,
+              'extract_command' => extract_command,
+            )
+            is_expected.to contain_file("#{base_dir}/storj-#{version}.#{s_os}-#{s_arch}/identity").with(
+              'owner'  => 'root',
+              'group'  => '0',
+              'mode'   => '0555',
+            )
+            is_expected.to contain_file("#{bin_dir}/identity").with(
+              'ensure' => 'link',
+              'target' => "#{base_dir}/storj-#{version}.#{s_os}-#{s_arch}/identity",
+            )
+
+            # User
+            if manage_user
+              is_expected.to contain_user(user).with(
+                'ensure' => 'present',
+                'system' => true,
+                'groups' => [group, 'docker'] + extra_groups,
+                'shell'  => user_shell,
+              )
+            else
+              is_expected.not_to contain_user(user)
+            end
+            # Group
+            if manage_group
+              is_expected.to contain_group(group).with(
+                'ensure' => 'present',
+                'system' => true,
+              )
+            else
+              is_expected.not_to contain_group(group)
+            end
+
+            is_expected.to contain_file(config_dir).with(
+              'ensure'  => 'directory',
+              'owner'   => user,
+              'group'   => group,
+            )
+          }
+
+          # Config
+          it {
+            is_expected.to contain_exec('Request authorization command').with(
+              'command'   => "#{bin_dir}/identity authorize storagenode #{authorization_token} --identity-dir #{config_dir} --config-dir #{config_dir}",
+              'onlyif'    => "/usr/bin/test `grep -c BEGIN #{config_dir}/storagenode/identity.cert` != 3",
+              'user'      => group,
+              'group'     => user,
+              'logoutput' => true,
+            ).that_notifies('Service[storagenode]')
+
+            is_expected.to contain_exec('Check certs integrity command').with(
+              'command'   => "/usr/bin/test `grep -c BEGIN #{config_dir}/storagenode/ca.cert` == 2 &&
+                  /usr/bin/test `grep -c BEGIN #{config_dir}/storagenode/identity.cert` == 3",
+              'logoutput' => true,
+              'returns'   => 0,
+            )
+          }
+
+          # Service
+          it {
+            is_expected.to contain_file('/lib/systemd/system/storagenode.service').with(
+              'ensure' => file_ensure,
+            ).with_content(
+              "# THIS FILE IS MANAGED BY PUPPET
+[Unit]
+Description=Storj storagenode service
+BindsTo=docker.service
+After=docker.service
+
+[Service]
+User=#{user}
+Group=#{group}
+Environment=NAME=storagenode
+Restart=on-failure
+RestartSec=10
+ExecStartPre=-/usr/bin/docker kill ${NAME}
+ExecStartPre=-/usr/bin/docker rm ${NAME}
+ExecStart=/usr/bin/docker run --name ${NAME} \\
+--stop-timeout 300 \\
+-p #{port}:28967 \\
+-p #{dashboard_port}:14002 \\
+-e WALLET=\"#{wallet}\" \\
+-e EMAIL=\"#{mail}\" \\
+-e ADDRESS=\"#{host}:#{port}\" \\
+-e STORAGE=\"#{storage}\" \\
+--mount type=bind,source=\"#{config_dir}/storagenode\",destination=/app/identity \\
+--mount type=bind,source=\"#{storage_path}\",destination=/app/config \\
+storjlabs/storagenode:#{docker_tag}
+ExecStop=/usr/bin/docker stop ${NAME}
+
+[Install]
+WantedBy=multi-user.target
+",
+            ).that_notifies('Service[storagenode]')
+
+            is_expected.to contain_service('storagenode').with(
+              'ensure' => service_ensure,
+              'enable' => true,
+            )
+          }
         end
       end
     end