我有一个使用依赖注入的asp.net core应用程序,依赖注入在应用程序的startup.cs类中定义:
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(Configuration["Data:FotballConnection:DefaultConnection"]));
// Repositories
services.AddScoped<IUserRepository, UserRepository>();
services.AddScoped<IUserRoleRepository, UserRoleRepository>();
services.AddScoped<IRoleRepository, RoleRepository>();
services.AddScoped<ILoggingRepository, LoggingRepository>();
// Services
services.AddScoped<IMembershipService, MembershipService>();
services.AddScoped<IEncryptionService, EncryptionService>();
// new repos
services.AddScoped<IMatchService, MatchService>();
services.AddScoped<IMatchRepository, MatchRepository>();
services.AddScoped<IMatchBetRepository, MatchBetRepository>();
services.AddScoped<ITeamRepository, TeamRepository>();
services.AddScoped<IFootballAPI, FootballAPIService>();
这使得像这样的事情成为可能:
[Route("api/[controller]")]
public class MatchController : AuthorizedController
{
private readonly IMatchService _matchService;
private readonly IMatchRepository _matchRepository;
private readonly IMatchBetRepository _matchBetRepository;
private readonly IUserRepository _userRepository;
private readonly ILoggingRepository _loggingRepository;
public MatchController(IMatchService matchService, IMatchRepository matchRepository, IMatchBetRepository matchBetRepository, ILoggingRepository loggingRepository, IUserRepository userRepository)
{
_matchService = matchService;
_matchRepository = matchRepository;
_matchBetRepository = matchBetRepository;
_userRepository = userRepository;
_loggingRepository = loggingRepository;
}
这很好,但在我想进行单元测试时会成为一个问题。因为我的测试库没有startup.cs文件,我无法设置依赖注入。所以具有这些接口作为参数的类将只是null。
namespace TestLibrary
{
public class FootballAPIService
{
private readonly IMatchRepository _matchRepository;
private readonly ITeamRepository _teamRepository;
public FootballAPIService(IMatchRepository matchRepository, ITeamRepository teamRepository)
{
_matchRepository = matchRepository;
_teamRepository = teamRepository;
在上面的代码中,在测试库中,_matchRepository和_teamRepository将会是null。:(我能否像
ConfigureServices
一样在我的测试库项目中定义依赖注入?
new SUT(mockDependency);
来创建 SUT 就足够了。 - Stephen Ross