diff --git a/lib/Peace/Model/Release.pm b/lib/Peace/Model/Release.pm
index 85e5710..8f2f6f4 100644
--- a/lib/Peace/Model/Release.pm
+++ b/lib/Peace/Model/Release.pm
@@ -36,6 +36,11 @@ use Types::Standard qw/InstanceOf Str HasMethods/;
     }
 }
 
+sub _dbh {
+    my $self = shift;
+    return $self->{dbh};
+}
+
 {
     my $validator =
       validation_for( params => [ { type => Str, optional => 1 } ] );
diff --git a/t/00009-release-model.t b/t/00009-release-model.t
index 549cf89..0846c6a 100644
--- a/t/00009-release-model.t
+++ b/t/00009-release-model.t
@@ -3,11 +3,14 @@ use v5.30.0;
 use strict;
 use warnings;
 
-use Test::Most tests => 4;
+use Test::Most tests => 5;
+use Test::MockModule;
 
 use Peace::Model::Application;
 use Peace::Model::Developer;
 
+use DBI;
+
 BEGIN {
     use_ok 'Peace::Model::Release';
 }
@@ -52,7 +55,7 @@ BEGIN {
         git_repo             => $app_git_repo,
     );
     my $release_name = '0.0.1';
-    my $release_tag = 'v0.0.1';
+    my $release_tag  = 'v0.0.1';
 
     ## WHEN
     my $release = Peace::Model::Release->new(
@@ -62,7 +65,69 @@ BEGIN {
     );
     ## THEN
     ok $release->isa('Peace::Model::Release'),
-        'Instanced release is made of Peace::Model::Release.';
+      'Instanced release is made of Peace::Model::Release.';
     is $release->name, $release_name, 'Name is correctly setup';
-    is $release->uuid,          undef,          'Uuid is undef.';
+    is $release->uuid, undef,         'Uuid is undef.';
+}
+
+{
+    ## GIVEN
+    ### Developer data.
+    my $developer_secret_bcrypt = 'hola';
+    my $developer_name          = 'Larry';
+    my $developer_surname       = 'Wall';
+    my $developer_email         = 'larry@perl.org';
+    my $developer_country       = 'US';
+    my $developer_verified      = 0;
+
+    ### Application data.
+    my $app_name        = 'Desfronificator';
+    my $app_description = 'Desfronifies the files.';
+    my $app_url         = 'https://desfronificator.example.com';
+    my $app_price       = '4.20';
+    my $app_git_repo =
+      'https://git.desfronificator.example.com/larry/desfronificator.git';
+    my $app_flatpak_builder_file =
+      './resources/com.example.desfronificator.yml';
+    my $app_verified  = 0;
+    my $app_developer = Peace::Model::Developer->new(
+        secret_bcrypt => $developer_secret_bcrypt,
+        name          => $developer_name,
+        surname       => $developer_surname,
+        email         => $developer_email,
+        country       => $developer_country,
+        verified      => $developer_verified,
+    );
+    ### Release data.
+    my $release_application = Peace::Model::Application->new(
+        developer            => $app_developer,
+        name                 => $app_name,
+        description          => $app_description,
+        url                  => $app_url,
+        price                => $app_price,
+        flatpak_builder_file => $app_flatpak_builder_file,
+        verified             => $app_verified,
+        git_repo             => $app_git_repo,
+    );
+    my $release_application_uuid = 'exampleuuid';
+    my $release_name             = '0.0.1';
+    my $release_tag              = 'v0.0.1';
+    my $release_dbh              = DBI->connect('dbi:Mock:');
+    my $application_dao_mock_module =
+      Test::MockModule->new('Peace::DAO::Application');
+    $application_dao_mock_module->mock(
+        recover_by_uuid => sub {
+            return $release_application;
+        }
+    );
+
+    ## WHEN
+    my $release = Peace::Model::Release->new(
+        name             => $release_name,
+        application_uuid => $release_application_uuid,
+        tag              => $release_tag,
+        dbh              => $release_dbh,
+    );
+    ## THEN
+    is $release->application, $release_application, 'Uuid is undef.';
 }