如何解决在ASP.NET Web API控制器中为单元测试设置模拟存储库时返回错误请求
我正在为ASP.NET核心Web API控制器编写单元测试。 对于一个特定的单元测试,我正在尝试发布电影,并检查名称是否已存在的电影以及是否存在返回错误请求的电影。该API可以正常运行,但是在编写单元测试时遇到了问题。
发布请求的我的控制器代码-
[HttpPost()]
public async Task<IActionResult> AddMovie(MovieForDetailedDto movieForDetailedDto)
{
if (await _repo.MovieExists(movieForDetailedDto.ATitle))
return BadRequest("movie already exists");
else if(!ModelState.IsValid || movieForDetailedDto.ATitle == null || movieForDetailedDto.APrice == null || movieForDetailedDto.AMovieDescription ==null)
{
return BadRequest("movie details not valid");
}
var movieToCreate = _mapper.Map<TblMovie>(movieForDetailedDto);
var createdMovie = await _repo.AddMovie(movieToCreate);
return Ok(createdMovie);
}
我正在编写的测试-
[Test]
public async Task GivenAValidMovie_WhenIPostANewMovieWithExistingName_ThenItReturnsbadRequest()
{
getMoviesHelper getMoviesHelper = new getMoviesHelper();
List<TblMovie> movieList = getMoviesHelper.getMovieFromList();
_mockMovieRepository = new Mock<IMovieRepository>();
_mockMovieMapper = new Mock<IMapper>();
_mockMovieMapper.Setup(mapper => mapper.Map<TblMovie>(It.IsAny<MovieForDetailedDto>()))
.Returns(new TblMovie());
_mockMovieRepository.Setup(repo => repo.AddMovie(It.IsAny<TblMovie>()))
.ReturnsAsync(BadRequest());
_moviesController = new MoviesController(_mockMovieRepository.Object,_mockMovieMapper.Object);
var tblMovie = await _moviesController.AddMovie(new MovieForDetailedDto
{
AMovieId = 3,ATitle = "Big Hero 6",AMovieDescription = "An action comedy adventure about brilliant robotics prodigy Hiro Hamada,who finds himself in the grips of a criminal plot that threatens to destroy the fast-paced,high-tech city of San Fransokyo. With the help of his closest companion-a robot named Baymax-Hiro joins forces with a reluctant team of first-time crime fighters on a mission to save their city.",ADuration = "105 min",APrice = "10",APurchasePrice = "25",ARating = 5,AImageLink = "http://upload.wikimedia.org/wikipedia/en/4/4b/Big_Hero_6_%28film%29_poster.jpg",ATrailerLink = "//www.youtube.com/embed/z3biFxZIJOQ",AGenre = "Comedy",AWideImage = "https://github.com/tushar23091998/MovieRentalApp-FrontEnd/blob/master/src/app/images/bighero6.jpg?raw=true"
});
Assert.IsInstanceOf<BadRequestObjectResult>(tblMovie);
}
不确定如何编写_mockMovieRepository设置行,以便它返回错误的请求。?
我用于填充列表以进行测试的功能。
public List<TblMovie> getMovieFromList()
{
var movies = new List<TblMovie>();
movies.Add(new TblMovie()
{
AMovieId = 2,AWideImage = "https://github.com/tushar23091998/MovieRentalApp-FrontEnd/blob/master/src/app/images/bighero6.jpg?raw=true"
});
}
我也应该如何继续编写此功能-
public TblMovie movieByNameExists(TblMovie tMovie)
{
var movies = getMovieFromList();
foreach (TblMovie tblMovie in movies)
{
if (tblMovie.ATitle == tMovie.ATitle)
{
//return "movie already exists";
// How do I return a BAD REQUEST HERE;
}
}
return tMovie;
}
感谢您的宝贵时间。我对单元测试非常陌生,所以如果我问的太明显了,我深表歉意
解决方法
要测试这种情况,您只要将输入的内容设为true
就可以为MovieExists
返回{1>}。
_mockMovieRepository.Setup(r => r.MovieExists(It.IsAny<string>())).ReturnsAsync(true);
因此,它只会模拟给定影片已经在回购中的情况(不重现存在性检查的完全相同的逻辑,用于回购测试),从控制器测试的角度来看,这已经足够。
您的控制器将按预期正确返回BadRequest
,因此您无需产生伪造的结果。
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