Fix wgquick template and extend tests

spec/defines/interface_spec.rb

@@ -366,6 +366,33 @@ class {"systemd":
         it { is_expected.to contain_file("/etc/systemd/network/#{title}.network").with_content(%r{Address=fe80::ade1/64}) }
         it { is_expected.not_to contain_ferm__rule("allow_wg_#{title}") }
       end
+
+      context 'wgquick with required params (public_key) and an address entry with dns also without firewall rules' do
+        let :params do
+          {
+            public_key: 'blabla==',
+            endpoint: 'wireguard.example.com:1234',
+            manage_firewall: false,
+            # we need to set destination_addresses to overwrite the default
+            # that would configure IPv4+IPv6, but GHA doesn't provide IPv6 for us
+            destination_addresses: [facts[:networking]['ip'],],
+            provider: 'wgquick',
+            addresses: [{ 'Address' => '192.168.218.87/32', 'DNS' => '192.168.218.1' }],
+          }
+        end
+
+        it { is_expected.to compile.with_all_deps }
+        it { is_expected.to contain_class('wireguard') }
+        it { is_expected.to contain_exec("generate private key #{title}") }
+        it { is_expected.to contain_exec("generate public key #{title}") }
+        it { is_expected.to contain_file("/etc/wireguard/#{title}.pub") }
+        it { is_expected.to contain_file("/etc/wireguard/#{title}") }
+        it { is_expected.to contain_file("/etc/wireguard/#{title}.conf") }
+        it { is_expected.to contain_file("/etc/wireguard/#{title}.conf").with_content(%r{[Interface]}) } # rubocop:disable Lint/DuplicateRegexpCharacterClassElement
+        it { is_expected.to contain_file("/etc/wireguard/#{title}.conf").with_content(%r{Address=192.168.218.87/32}) }
+        it { is_expected.to contain_file("/etc/wireguard/#{title}.conf").with_content(%r{DNS=192.168.218.1}) }
+        it { is_expected.not_to contain_ferm__rule("allow_wg_#{title}") }
+      end
     end
   end
 end

templates/wireguard_conf.epp

@@ -6,7 +6,7 @@
 | -%>
 # THIS FILE IS MANAGED BY PUPPET
 [Interface]
-<% $addresses.each |$address| { -%>
+<% $addresses.each |$key, $value| { -%>
 <%= $key %>=<%= $value %>
 <% } -%>
 ListenPort = <%= $dport %>