diff --git a/spec/defines/oslo_db_spec.rb b/spec/defines/oslo_db_spec.rb
index e796f63..9e57e22 100644
--- a/spec/defines/oslo_db_spec.rb
+++ b/spec/defines/oslo_db_spec.rb
@@ -100,9 +100,8 @@ describe 'oslo::db' do
 { :connection => 'postgresql://db:db@localhost/db', }
 end
 
- it 'install the proper backend package' do
- is_expected.to contain_package('python-psycopg2').with(:ensure => 'present')
- end
+ it { is_expected.to contain_keystone_config('database/connection').with_value('postgresql://db:db@localhost/db').with_secret(true) }
+ it { is_expected.to contain_class('postgresql::lib::python') }
 
 context 'with backend package management disabled' do
 before do
@@ -112,7 +111,7 @@ describe 'oslo::db' do
 end
 
 it 'does not install backend package' do
- is_expected.not_to contain_package('python-psycopg2')
+ is_expected.not_to contain_class('postgresql::lib::python')
 end
 end
 end
@@ -123,6 +122,7 @@ describe 'oslo::db' do
 end
 
 it { is_expected.to contain_keystone_config('database/connection').with_value('postgresql+psycopg2://db:db@localhost/db').with_secret(true) }
+ it { is_expected.to contain_class('postgresql::lib::python') }
 end
 
 context 'with incorrect database_connection string' do
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