public async Task GetAuthorIdByIdShouldReturnNullIfNotFound()
{
var options = new DbContextOptionsBuilder <AlexandriaDbContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString())
.Options;
var db = new AlexandriaDbContext(options);
await db.AddRangeAsync(
new Review
{
Description = "description1",
AuthorId = "author1",
BookId = 1,
},
new Review
{
Description = "description2",
AuthorId = "author1",
BookId = 1,
ParentId = 1,
});
await db.SaveChangesAsync();
var reviewsService = new ReviewsService(db);
var result = await reviewsService.GetAuthorIdByIdAsync(5);
Assert.Null(result);
}