public async void DeletePost()
{
int postId = 1;
Post post = fixture.contextMock.Object.Posts.FirstOrDefault(u => u.Id == postId);
var actual = await controller.DeletePost(postId);
Post actualB = fixture.contextMock.Object.Posts.FirstOrDefault(u => u.Id == postId);
Assert.NotNull(post);
Assert.Null(actualB);
}
