ionic-planb-logistic-app-flutter/test/api/grpc_client_test.dart

import 'package:flutter_test/flutter_test.dart';
import 'package:planb_logistic/api/grpc_client.dart';
import 'package:planb_logistic/api/grpc_config.dart';

void main() {
  group('GrpcCqrsApiClient', () {
    test('can be created with development config', () {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.development,
        authService: null,
      );

      expect(client.config, equals(GrpcConfig.development));
      expect(client.isConnected, isFalse);
    });

    test('can be created with production config', () {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.production,
        authService: null,
      );

      expect(client.config, equals(GrpcConfig.production));
      expect(client.isConnected, isFalse);
    });

    test('channel is created lazily', () {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.development,
        authService: null,
      );

      expect(client.isConnected, isFalse);

      // Access the channel to trigger lazy initialization
      final channel = client.channel;

      expect(channel, isNotNull);
      expect(client.isConnected, isTrue);
    });

    test('delivery client is created lazily', () {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.development,
        authService: null,
      );

      // Access delivery client (implicitly creates channel first)
      final deliveryClient = client.deliveryClient;

      expect(deliveryClient, isNotNull);
      expect(client.isConnected, isTrue);
    });

    test('shutdown clears channel and client', () async {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.development,
        authService: null,
      );

      // Initialize the channel
      final _ = client.channel;
      expect(client.isConnected, isTrue);

      // Shutdown
      await client.shutdown();
      expect(client.isConnected, isFalse);
    });

    test('terminate clears channel and client', () async {
      final client = GrpcCqrsApiClient(
        config: GrpcConfig.development,
        authService: null,
      );

      // Initialize the channel
      final _ = client.channel;
      expect(client.isConnected, isTrue);

      // Terminate
      await client.terminate();
      expect(client.isConnected, isFalse);
    });
  });
}