implemented EncryptedClientService

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

de.srsoftware.oidc.datastore.encrypted/src/test/java/EncryptedClientServiceTest.java

@@ -0,0 +1,55 @@
+/* © SRSoftware 2024 */
+import static de.srsoftware.utils.Optionals.nullable;
+import static de.srsoftware.utils.Strings.uuid;
+
+import de.srsoftware.oidc.api.ClientService;
+import de.srsoftware.oidc.api.ClientServiceTest;
+import de.srsoftware.oidc.api.data.Client;
+import de.srsoftware.oidc.datastore.encrypted.EncryptedClientService;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Optional;
+import org.junit.jupiter.api.BeforeEach;
+
+public class EncryptedClientServiceTest extends ClientServiceTest {
+	private static class InMemoryClientService implements ClientService {
+		private HashMap<String, Client> clients = new HashMap<>();
+
+		@Override
+		public Optional<Client> getClient(String clientId) {
+			return nullable(clients.get(clientId));
+		}
+
+		@Override
+		public List<Client> listClients() {
+			return List.copyOf(clients.values());
+		}
+
+		@Override
+		public ClientService remove(String clientId) {
+			clients.remove(clientId);
+			return this;
+		}
+
+		@Override
+		public ClientService save(Client client) {
+			clients.put(client.id(), client);
+			return this;
+		}
+	}
+	private ClientService clientService;
+
+	@Override
+	protected ClientService clientService() {
+		return clientService;
+	}
+
+	@BeforeEach
+	public void setup() throws SQLException {
+		var secret    = uuid();
+		var salt      = uuid();
+		var backend   = new InMemoryClientService();
+		clientService = new EncryptedClientService(secret, salt, backend);
+	}
+}