public async Task DeleteByIdAsync_DeleteWithId1_DeletesItem() { var numberOfItemsInDatabase = await _context.Attempts.AsQueryable().CountAsync(); await _service.DeleteEntityByIdAsync("attempt1"); _context.Attempts.AsQueryable().CountAsync().Result.Should().Be(numberOfItemsInDatabase - 1); _context.Attempts.FindAsync("attempt1").Result.Should().BeNull(); }