public async Task GetPostLikesAsync_WithValidPostId_ShouldReturnTotalCountOfLikes()
{
// Arrange
var context = InMemoryDbContext.Initiliaze();
var likesRepository = new EfRepository <Like>(context);
var usersRepository = new EfRepository <ApplicationUser>(context);
var postsRepository = new EfRepository <Post>(context);
var service = new LikesService(likesRepository, usersRepository, postsRepository);
await this.SeedUserAndPost(context);
await likesRepository.AddAsync(new Like { Id = 1, PostId = 52, UserId = "userId" });
// Act
int expectedCount = context.Likes.Count();
int actualCount = await service.GetPostLikesAsync(52);
// Assert
Assert.Equal(expectedCount, actualCount);
}