Add unit test for role with DBVERSION in connect_settings

Author: cruelsmith

spec/acceptance/server/role_spec.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+require 'spec_helper_acceptance'
+
+describe 'postgresql::server::role' do
+  let(:user) { 'foo' }
+  let(:password) { 'bar' }
+
+  it 'with different DBVERSION in connect_settings' do
+    pp_role = <<-MANIFEST
+      $user = '#{user}'
+      $password = '#{password}'
+
+      class { 'postgresql::server': }
+
+      postgresql::server::role { $user:
+        password_hash    => $password,
+        connect_settings => {
+          'DBVERSION' => '13',
+        },
+      }
+    MANIFEST
+
+    if Gem::Version.new(postgresql_version) >= Gem::Version.new('14')
+      idempotent_apply(pp_role)
+
+      # verify that password_encryption selectio is based on 'DBVERSION' and not on postgresql::serverglobals::version
+      psql("--command=\"SELECT 1 FROM pg_shadow WHERE usename = '#{user}' AND passwd = 'md596948aad3fcae80c08a35c9b5958cd89'\"") do |r|
+        expect(r.stdout).to match(%r{\(1 row\)})
+        expect(r.stderr).to eq('')
+      end
+    end
+  end
+end