public async Task DoesAuthorIdExistShouldReturnFalseIfDeleted()
{
var options = new DbContextOptionsBuilder <AlexandriaDbContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString())
.Options;
var db = new AlexandriaDbContext(options);
await db.Authors.AddAsync(
new Author
{
FirstName = "first1",
SecondName = "second1",
LastName = "last1",
IsDeleted = true,
DeletedOn = DateTime.UtcNow,
});
await db.SaveChangesAsync();
var authorsService = new AuthorsService(db);
var result = await authorsService.DoesAuthorIdExistAsync(1);
Assert.False(result);
}