public async Task ExistsAsync_WithValidLikeId_ShouldReturnTrue()
{
// 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 this.SeedLikes(context);
// Act
bool likeExists = await service.ExistsAsync(26); // Valid id.
bool likeExistsTwo = await service.ExistsAsync(59135); // Invalid id.
// Assert
Assert.True(likeExists);
Assert.False(likeExistsTwo);
}