public async Task TestHandle_ShouldSkipAndTakeCorrectNumberOfItems()
{
// Arrange
var user = new UserProfile(Guid.NewGuid().ToString(), "currentUser", "currentUser");
var author = new UserProfile(Guid.NewGuid().ToString(), "author", "author");
var articles = new List <Article>
{
new Article("first title", "first description", "first body", new DateTime(1, 2, 3), author),
new Article("second title", "second description", "second body", new DateTime(2, 2, 3), author),
new Article("third title", "third description", "third body", new DateTime(3, 3, 3), user),
};
Context.Articles.AddRange(articles);
Context.UserFollowers.Add(new UserFollower(author, user));
await Context.SaveChangesAsync();
var expected = new ArticleListDto {
Articles = articles
.Take(2)
.OrderByDescending(a => a.UpdatedAt)
.Skip(1)
.Take(1)
.Select(a => {
var dto = Mapper.Map <ArticleDto>(a);
dto.Author.Following = true;
return(dto);
})
};
var query = new FeedArticlesQuery {
Limit = 1,
Offset = 1
};
var currentUser = Mock.Of <ICurrentUserService>(s => s.UserId == user.Id);
var sut = new FeedArticlesQuery.Handler(Context, Mapper, currentUser);
// Act
var result = await sut.Handle(query, CancellationToken.None);
// Assert
result.Should().BeEquivalentTo(expected);
}
public async Task <ArticleListDto> FeedArticles([FromQuery] FeedArticlesQuery query) => await mediator.Send(query);