public async void CreateTag_Creates_A_Tag_In_Db()
{
// Arrange
var tag = new Tag {
Slug = "tag", Title = "Tag"
};
// Act
await _tagRepo.CreateAsync(tag);
// Assert
Assert.NotNull(_db.Set <Tag>().SingleOrDefault(c => c.Title == "Tag"));
}
public async void UpdatePost_With_Tags_Updated()
{
// Arrange: given 1 post with 2 tags
SeedTestPost();
// and another new tag
var tagRepo = new SqlTagRepository(_db);
var tagJava = await tagRepo.CreateAsync(new Tag { Title = "Java", Slug = "java" });
// prep a list of tags
List <string> tagTitles = new List <string> {
TAG2_TITLE, "Java"
};
// get the post
var post = await _postRepo.GetAsync(1, EPostType.BlogPost);
// Act: when user updated the post by removing AspNet tag and adding Java tag
// this won't work, the PostTag is still being tracked
//post.PostTags.Clear();
//post.PostTags.Add(new PostTag { Post = post, Tag = tagJava });
//post.PostTags.Add(new PostTag { Post = post, Tag = tagCs });
// instead we have to
List <string> tagTitlesCurrent = post.PostTags.Select(pt => pt.Tag.Title).ToList();
var tagsToRemove = tagTitlesCurrent.Except(tagTitles);
foreach (var t in tagsToRemove)
{
post.PostTags.Remove(post.PostTags.Single(pt => pt.Tag.Title == t));
}
post.PostTags.Add(new PostTag {
Post = post, Tag = tagJava
});
await _postRepo.UpdateAsync(post);
// Assert: then the post's tags are updated
var postAgain = await _postRepo.GetAsync(1, EPostType.BlogPost);
Assert.Equal(2, postAgain.PostTags.Count());
Assert.True(post.PostTags.ToList()[0].Tag.Slug == "cs");
Assert.True(post.PostTags.ToList()[1].Tag.Slug == "java");
}
public async void UpdatePost_Can_Add_None_Tracked_Tag()
{
// Given 1 post with 2 tags
Seed_1BlogPost_with_1Category_2Tags();
// and a non-tracked tag
var tagRepo = new SqlTagRepository(_db);
var tag = await tagRepo.CreateAsync(new Tag { Title = "Java", Slug = "java" });
// Act: when user updates post by adding the non-tracked tag
var post = _db.Set <Post>().Include(p => p.PostTags).Single(p => p.Slug == POST_SLUG);
//post.PostTags.Add(new PostTag { Post = post, Tag = tagNonTracked });
post.PostTags.Add(new PostTag {
Post = post, Tag = tag
});
await _postRepo.UpdateAsync(post);
// Assert: now post has 3 tags
var postAgain = _db.Set <Post>().Include(p => p.PostTags).Single(p => p.Id == post.Id);
Assert.Equal(3, postAgain.PostTags.Count());
}
