public async Task When_UserAsksForMovieTheMatrix_Then_AttemptsToReadCache_And_ReturnCorrectMovie()
{
movieDatabaseProxy
.GetMovieOrTvSeries("movie", "the matri")
.Returns(new Web.DTO.Media()
{
Id = "123", Name = "The Matrix"
});
// just executes the method
memoryCacheAdapter
.GetOrSetFromCache("movie_thematri", Arg.Any <Func <Task <Web.DTO.Media> > >())
.Returns(callinfo => callinfo.ArgAt <Func <Task <Web.DTO.Media> > >(1).Invoke());
var result = await sut.GetMovieOrTvSeries(Web.DTO.MediaType.movie, "the matri");
result.Should().NotBeNull();
result.Id.Should().Be("123");
result.Name.Should().Be("The Matrix");
}
public async Task <DTO.Media> GetMovieOrTvSeries(DTO.MediaType type, string name)
{
// could have used usual validators, but because this is simple, and in the spirit of no "magic code", I preferred to do manually
if (name == null)
{
throw new BadRequestException("name is empty");
}
name = name.Trim();
if (name.Length < 2)
{
throw new BadRequestException("name has too few characters");
}
string cacheKey = $"{type}_{name.ToLower().Replace(" ", "")}";
var result = await _memoryCache.GetOrSetFromCache(cacheKey, async() =>
{
return(await _movieDatabaseProxy.GetMovieOrTvSeries(type.ToString(), name));
});
return(result);
}