public async void CanDeletePost()
{
DbContextOptions <PostDbContext> options = new DbContextOptionsBuilder <PostDbContext>().UseInMemoryDatabase("DeletePost").Options;
using (PostDbContext context = new PostDbContext(options))
{
PostManager service = new PostManager(context);
Post p1 = new Post();
p1.ID = 1;
p1.PosterName = "alley";
p1.Description = "ts1";
p1.URL = "ts.jpg";
await service.SaveAsync(p1);
Post p2 = new Post();
p2.ID = 2;
p2.PosterName = "blob";
p2.Description = "ts2";
p2.URL = "ts2.jpg";
await service.SaveAsync(p2);
await service.DeleleAsync(p1.ID);
var result = await context.Posts.FirstOrDefaultAsync(p => p.ID == p1.ID);
Assert.Null(result);
}
}
