discourse/spec/components/post_destroyer_spec.rb
Sam Saffron 4ea21fa2d0 DEV: use #frozen_string_literal: true on all spec
This change both speeds up specs (less strings to allocate) and helps catch
cases where methods in Discourse are mutating inputs.

Overall we will be migrating everything to use #frozen_string_literal: true
it will take a while, but this is the first and safest move in this direction
2019-04-30 10:27:42 +10:00

787 lines
25 KiB
Ruby

# frozen_string_literal: true
require 'rails_helper'
require_dependency 'post_destroyer'
describe PostDestroyer do
before do
UserActionManager.enable
end
let(:moderator) { Fabricate(:moderator) }
let(:admin) { Fabricate(:admin) }
let(:post) { create_post }
describe "destroy_old_hidden_posts" do
it "destroys posts that have been hidden for 30 days" do
Fabricate(:admin)
now = Time.now
freeze_time(now - 60.days)
topic = post.topic
reply1 = create_post(topic: topic)
freeze_time(now - 40.days)
reply2 = create_post(topic: topic)
reply2.hide!(PostActionType.types[:off_topic])
freeze_time(now - 20.days)
reply3 = create_post(topic: topic)
reply3.hide!(PostActionType.types[:off_topic])
freeze_time(now - 10.days)
reply4 = create_post(topic: topic)
freeze_time(now)
PostDestroyer.destroy_old_hidden_posts
reply1.reload
reply2.reload
reply3.reload
reply4.reload
expect(reply1.deleted_at).to eq(nil)
expect(reply2.deleted_at).not_to eq(nil)
expect(reply3.deleted_at).to eq(nil)
expect(reply4.deleted_at).to eq(nil)
end
end
describe 'destroy_old_stubs' do
it 'destroys stubs for deleted by user posts' do
SiteSetting.delete_removed_posts_after = 24
Fabricate(:admin)
topic = post.topic
reply1 = create_post(topic: topic)
reply2 = create_post(topic: topic)
reply3 = create_post(topic: topic)
PostDestroyer.new(reply1.user, reply1).destroy
PostDestroyer.new(reply2.user, reply2).destroy
reply2.update_column(:updated_at, 2.days.ago)
PostDestroyer.destroy_stubs
reply1.reload
reply2.reload
reply3.reload
expect(reply1.deleted_at).to eq(nil)
expect(reply2.deleted_at).not_to eq(nil)
expect(reply3.deleted_at).to eq(nil)
# if topic is deleted we should still be able to destroy stubs
topic.trash!
reply1.update_column(:updated_at, 2.days.ago)
PostDestroyer.destroy_stubs
reply1.reload
expect(reply1.deleted_at).to eq(nil)
# flag the post, it should not nuke the stub anymore
topic.recover!
reviewable = PostActionCreator.spam(Fabricate(:coding_horror), reply1).reviewable
PostDestroyer.destroy_stubs
reply1.reload
expect(reply1.deleted_at).to eq(nil)
# ignore the flag, we should be able to delete the stub
reviewable.perform(Discourse.system_user, :ignore)
PostDestroyer.destroy_stubs
reply1.reload
expect(reply1.deleted_at).to_not eq(nil)
end
it 'uses the delete_removed_posts_after site setting' do
Fabricate(:admin)
topic = post.topic
reply1 = create_post(topic: topic)
reply2 = create_post(topic: topic)
PostDestroyer.new(reply1.user, reply1).destroy
PostDestroyer.new(reply2.user, reply2).destroy
SiteSetting.delete_removed_posts_after = 1
reply2.update_column(:updated_at, 70.minutes.ago)
PostDestroyer.destroy_stubs
reply1.reload
reply2.reload
expect(reply1.deleted_at).to eq(nil)
expect(reply2.deleted_at).not_to eq(nil)
SiteSetting.delete_removed_posts_after = 72
reply1.update_column(:updated_at, 2.days.ago)
PostDestroyer.destroy_stubs
expect(reply1.reload.deleted_at).to eq(nil)
SiteSetting.delete_removed_posts_after = 47
PostDestroyer.destroy_stubs
expect(reply1.reload.deleted_at).not_to eq(nil)
end
it "deletes posts immediately if delete_removed_posts_after is 0" do
Fabricate(:admin)
topic = post.topic
reply1 = create_post(topic: topic)
SiteSetting.delete_removed_posts_after = 0
PostDestroyer.new(reply1.user, reply1).destroy
expect(reply1.reload.deleted_at).not_to eq(nil)
end
end
describe "recovery and user actions" do
it "recreates user actions" do
reply = create_post(topic: post.topic)
author = reply.user
post_action = author.user_actions.where(action_type: UserAction::REPLY, target_post_id: reply.id).first
expect(post_action).to be_present
PostDestroyer.new(moderator, reply).destroy
# User Action is removed
post_action = author.user_actions.where(action_type: UserAction::REPLY, target_post_id: reply.id).first
expect(post_action).to be_blank
PostDestroyer.new(moderator, reply).recover
# On recovery, the user action is recreated
post_action = author.user_actions.where(action_type: UserAction::REPLY, target_post_id: reply.id).first
expect(post_action).to be_present
end
describe "post_count recovery" do
before do
post
@user = post.user
@reply = create_post(topic: post.topic, user: @user)
expect(@user.user_stat.post_count).to eq(1)
end
it 'Recovers the post correctly' do
PostDestroyer.new(admin, post).destroy
post.reload
PostDestroyer.new(admin, post).recover
recovered_topic = post.reload.topic
expect(recovered_topic.deleted_at).to be_nil
expect(recovered_topic.deleted_by_id).to be_nil
end
context "recover" do
it "doesn't raise an error when the raw doesn't change" do
PostRevisor.new(@reply).revise!(
@user,
{ edit_reason: 'made a change' },
force_new_version: true
)
PostDestroyer.new(@user, @reply.reload).recover
end
it "won't recover a non user-deleted post" do
PostRevisor.new(@reply).revise!(
admin,
{ raw: 'this is a change to the post' },
force_new_version: true
)
PostDestroyer.new(@user, @reply.reload).recover
expect(@reply.reload.raw).to eq('this is a change to the post')
end
it "should increment the user's post count" do
PostDestroyer.new(@user, @reply).destroy
expect(@user.user_stat.topic_count).to eq(1)
expect(@user.user_stat.post_count).to eq(1)
PostDestroyer.new(@user, @reply.reload).recover
expect(@user.user_stat.topic_count).to eq(1)
expect(@user.reload.user_stat.post_count).to eq(1)
expect(UserAction.where(target_topic_id: post.topic_id, action_type: UserAction::NEW_TOPIC).count).to eq(1)
expect(UserAction.where(target_topic_id: post.topic_id, action_type: UserAction::REPLY).count).to eq(1)
end
end
context "recovered by admin" do
it "should increment the user's post count" do
PostDestroyer.new(moderator, @reply).destroy
expect(@user.reload.user_stat.topic_count).to eq(1)
expect(@user.user_stat.post_count).to eq(0)
PostDestroyer.new(admin, @reply).recover
expect(@user.reload.user_stat.topic_count).to eq(1)
expect(@user.user_stat.post_count).to eq(1)
PostDestroyer.new(moderator, post).destroy
expect(@user.reload.user_stat.topic_count).to eq(0)
expect(@user.user_stat.post_count).to eq(0)
PostDestroyer.new(admin, post).recover
expect(@user.reload.user_stat.topic_count).to eq(1)
expect(@user.user_stat.post_count).to eq(1)
expect(UserAction.where(target_topic_id: post.topic_id, action_type: UserAction::NEW_TOPIC).count).to eq(1)
expect(UserAction.where(target_topic_id: post.topic_id, action_type: UserAction::REPLY).count).to eq(1)
end
end
end
end
describe "recovery and post actions" do
let(:codinghorror) { Fabricate(:coding_horror) }
let!(:like) { PostActionCreator.like(codinghorror, post).post_action }
let!(:another_like) { PostActionCreator.like(moderator, post).post_action }
it "restores public post actions" do
PostDestroyer.new(moderator, post).destroy
expect(PostAction.exists?(id: like.id)).to eq(false)
PostDestroyer.new(moderator, post).recover
expect(PostAction.exists?(id: like.id)).to eq(true)
end
it "does not recover previously-deleted actions" do
PostActionDestroyer.destroy(codinghorror, post, :like)
expect(PostAction.exists?(id: like.id)).to eq(false)
PostDestroyer.new(moderator, post).destroy
PostDestroyer.new(moderator, post).recover
expect(PostAction.exists?(id: another_like.id)).to eq(true)
expect(PostAction.exists?(id: like.id)).to eq(false)
end
it "updates post like count" do
PostDestroyer.new(moderator, post).destroy
PostDestroyer.new(moderator, post).recover
post.reload
expect(post.like_count).to eq(2)
expect(post.custom_fields["deleted_public_actions"]).to be_nil
end
end
describe 'basic destroying' do
it "as the creator of the post, doesn't delete the post" do
begin
post2 = create_post
user_stat = post2.user.user_stat
called = 0
topic_destroyed = -> (topic, user) do
expect(topic).to eq(post2.topic)
expect(user).to eq(post2.user)
called += 1
end
DiscourseEvent.on(:topic_destroyed, &topic_destroyed)
@orig = post2.cooked
# Guardian.new(post2.user).can_delete_post?(post2) == false
PostDestroyer.new(post2.user, post2).destroy
post2.reload
expect(post2.deleted_at).to be_blank
expect(post2.deleted_by).to be_blank
expect(post2.user_deleted).to eq(true)
expect(post2.raw).to eq(I18n.t('js.topic.deleted_by_author', count: 24))
expect(post2.version).to eq(2)
expect(called).to eq(1)
expect(user_stat.reload.post_count).to eq(0)
expect(user_stat.reload.topic_count).to eq(1)
called = 0
topic_recovered = -> (topic, user) do
expect(topic).to eq(post2.topic)
expect(user).to eq(post2.user)
called += 1
end
DiscourseEvent.on(:topic_recovered, &topic_recovered)
# lets try to recover
PostDestroyer.new(post2.user, post2).recover
post2.reload
expect(post2.version).to eq(3)
expect(post2.user_deleted).to eq(false)
expect(post2.cooked).to eq(@orig)
expect(called).to eq(1)
expect(user_stat.reload.post_count).to eq(0)
expect(user_stat.reload.topic_count).to eq(1)
ensure
DiscourseEvent.off(:topic_destroyed, &topic_destroyed)
DiscourseEvent.off(:topic_recovered, &topic_recovered)
end
end
it "when topic is destroyed, it updates user_stats correctly" do
SiteSetting.min_topic_title_length = 5
post.topic.update_column(:title, "xyz")
user1 = post.user
user2 = Fabricate(:user)
reply = create_post(topic_id: post.topic_id, user: user2)
reply2 = create_post(topic_id: post.topic_id, user: user1)
expect(user1.user_stat.topic_count).to eq(1)
expect(user1.user_stat.post_count).to eq(1)
expect(user2.user_stat.topic_count).to eq(0)
expect(user2.user_stat.post_count).to eq(1)
PostDestroyer.new(Fabricate(:admin), post).destroy
user1.reload
user2.reload
expect(user1.user_stat.topic_count).to eq(0)
expect(user1.user_stat.post_count).to eq(0)
expect(user2.user_stat.topic_count).to eq(0)
expect(user2.user_stat.post_count).to eq(0)
end
it "accepts a delete_removed_posts_after option" do
SiteSetting.delete_removed_posts_after = 0
post.update!(post_number: 2)
PostDestroyer.new(post.user, post, delete_removed_posts_after: 1).destroy
post.reload
expect(post.deleted_at).to eq(nil)
expect(post.user_deleted).to eq(true)
expect(post.raw).to eq(I18n.t('js.post.deleted_by_author', count: 1))
end
context "as a moderator" do
it "deletes the post" do
author = post.user
reply = create_post(topic_id: post.topic_id, user: author)
post_count = author.post_count
history_count = UserHistory.count
PostDestroyer.new(moderator, reply).destroy
expect(reply.deleted_at).to be_present
expect(reply.deleted_by).to eq(moderator)
author.reload
expect(author.post_count).to eq(post_count - 1)
expect(UserHistory.count).to eq(history_count + 1)
end
end
context "as an admin" do
it "deletes the post" do
PostDestroyer.new(admin, post).destroy
expect(post.deleted_at).to be_present
expect(post.deleted_by).to eq(admin)
end
it "updates the user's topic_count for first post" do
author = post.user
expect {
PostDestroyer.new(admin, post).destroy
author.reload
}.to change { author.topic_count }.by(-1)
expect(author.user_stat.post_count).to eq(0)
end
it "updates the user's post_count for reply" do
author = post.user
reply = create_post(topic: post.topic, user: author)
expect {
PostDestroyer.new(admin, reply).destroy
author.reload
}.to change { author.post_count }.by(-1)
expect(author.user_stat.topic_count).to eq(1)
end
it "doesn't count whispers" do
user_stat = admin.user_stat
whisper = PostCreator.new(
admin,
topic_id: post.topic.id,
reply_to_post_number: 1,
post_type: Post.types[:whisper],
raw: 'this is a whispered reply'
).create
expect(user_stat.reload.post_count).to eq(0)
expect {
PostDestroyer.new(admin, whisper).destroy
}.to_not change { user_stat.reload.post_count }
end
end
end
context 'private message' do
let(:author) { Fabricate(:user) }
let(:private_message) { Fabricate(:private_message_topic, user: author) }
let!(:first_post) { Fabricate(:post, topic: private_message, user: author) }
let!(:second_post) { Fabricate(:post, topic: private_message, user: author, post_number: 2) }
it "doesn't update post_count for a reply" do
expect {
PostDestroyer.new(admin, second_post).destroy
author.reload
}.to_not change { author.post_count }
expect {
PostDestroyer.new(admin, second_post).recover
}.to_not change { author.post_count }
end
it "doesn't update topic_count for first post" do
expect {
PostDestroyer.new(admin, first_post).destroy
author.reload
}.to_not change { author.topic_count }
expect(author.post_count).to eq(0) # also unchanged
end
it 'triggers the extensibility events' do
events = DiscourseEvent.track_events { PostDestroyer.new(admin, first_post).destroy }.last(2)
expect(events[0][:event_name]).to eq(:post_destroyed)
expect(events[0][:params].first).to eq(first_post)
expect(events[1][:event_name]).to eq(:topic_destroyed)
expect(events[1][:params].first).to eq(first_post.topic)
end
end
context 'deleting the second post in a topic' do
let(:user) { Fabricate(:user) }
let!(:post) { create_post(user: user) }
let(:topic) { post.topic }
let(:second_user) { Fabricate(:coding_horror) }
let!(:second_post) { create_post(topic: topic, user: second_user) }
before do
PostDestroyer.new(moderator, second_post).destroy
topic.reload
end
it 'resets the last_poster_id back to the OP' do
expect(topic.last_post_user_id).to eq(user.id)
end
it 'resets the last_posted_at back to the OP' do
expect(topic.last_posted_at.to_i).to eq(post.created_at.to_i)
end
it 'resets the highest_post_number' do
expect(topic.highest_post_number).to eq(post.post_number)
end
context 'topic_user' do
let(:topic_user) { second_user.topic_users.find_by(topic_id: topic.id) }
it 'clears the posted flag for the second user' do
expect(topic_user.posted?).to eq(false)
end
it "sets the second user's last_read_post_number back to 1" do
expect(topic_user.last_read_post_number).to eq(1)
end
it "sets the second user's last_read_post_number back to 1" do
expect(topic_user.highest_seen_post_number).to eq(1)
end
end
end
context "deleting a post belonging to a deleted topic" do
let!(:topic) { post.topic }
let(:author) { post.user }
before do
topic.trash!(admin)
post.reload
end
context "as a moderator" do
before do
PostDestroyer.new(moderator, post).destroy
end
it "deletes the post" do
expect(post.deleted_at).to be_present
expect(post.deleted_by).to eq(moderator)
expect(author.user_stat.post_count).to eq(0)
end
end
context "as an admin" do
subject { PostDestroyer.new(admin, post).destroy }
it "deletes the post" do
subject
expect(post.deleted_at).to be_present
expect(post.deleted_by).to eq(admin)
end
it "creates a new user history entry" do
expect { subject }.to change { UserHistory.count }.by(1)
end
it 'triggers a extensibility event' do
events = DiscourseEvent.track_events { subject }
expect(events[0][:event_name]).to eq(:post_destroyed)
expect(events[0][:params].first).to eq(post)
end
end
end
context "deleting a reply belonging to a deleted topic" do
let!(:topic) { post.topic }
let!(:reply) { create_post(topic_id: topic.id, user: post.user) }
let(:author) { reply.user }
before do
topic.trash!(admin)
post.reload
reply.reload
end
context "as a moderator" do
subject { PostDestroyer.new(moderator, reply).destroy }
it "deletes the reply" do
subject
expect(reply.deleted_at).to be_present
expect(reply.deleted_by).to eq(moderator)
end
it "doesn't decrement post_count again" do
expect { subject }.to_not change { author.user_stat.post_count }
end
end
context "as an admin" do
subject { PostDestroyer.new(admin, reply).destroy }
it "deletes the post" do
subject
expect(reply.deleted_at).to be_present
expect(reply.deleted_by).to eq(admin)
end
it "doesn't decrement post_count again" do
expect { subject }.to_not change { author.user_stat.post_count }
end
it "creates a new user history entry" do
expect { subject }.to change { UserHistory.count }.by(1)
end
end
end
it "deletes a post belonging to a non-existent topic" do
DB.exec("DELETE FROM topics WHERE id = ?", post.topic_id)
post.reload
PostDestroyer.new(admin, post).destroy
expect(post.deleted_at).to be_present
expect(post.deleted_by).to eq(admin)
end
describe 'after delete' do
let!(:coding_horror) { Fabricate(:coding_horror) }
let!(:post) { Fabricate(:post, raw: "Hello @CodingHorror") }
it "should feature the users again (in case they've changed)" do
Jobs.expects(:enqueue).with(:feature_topic_users, has_entries(topic_id: post.topic_id))
PostDestroyer.new(moderator, post).destroy
end
describe 'with a reply' do
let!(:reply) { Fabricate(:basic_reply, user: coding_horror, topic: post.topic) }
let!(:post_reply) { PostReply.create(post_id: post.id, reply_id: reply.id) }
it 'changes the post count of the topic' do
post.reload
expect {
PostDestroyer.new(moderator, reply).destroy
post.topic.reload
}.to change(post.topic, :posts_count).by(-1)
end
it 'lowers the reply_count when the reply is deleted' do
expect {
PostDestroyer.new(moderator, reply).destroy
}.to change(post.post_replies, :count).by(-1)
end
it 'should increase the post_number when there are deletion gaps' do
PostDestroyer.new(moderator, reply).destroy
p = Fabricate(:post, user: post.user, topic: post.topic)
expect(p.post_number).to eq(3)
end
end
end
context '@mentions' do
it 'removes notifications when deleted' do
Jobs.run_immediately!
user = Fabricate(:evil_trout)
post = create_post(raw: 'Hello @eviltrout')
expect {
PostDestroyer.new(Fabricate(:moderator), post).destroy
}.to change(user.notifications, :count).by(-1)
end
end
describe "post actions" do
let(:second_post) { Fabricate(:post, topic_id: post.topic_id) }
let!(:bookmark) { PostActionCreator.create(moderator, second_post, :bookmark).post_action }
let(:flag_result) { PostActionCreator.off_topic(moderator, second_post) }
let!(:flag) { flag_result.post_action }
before do
Jobs::SendSystemMessage.clear
end
it "should delete public post actions and agree with flags" do
url = second_post.url
PostDestroyer.new(moderator, second_post).destroy
expect(PostAction.find_by(id: bookmark.id)).to eq(nil)
off_topic = PostAction.find_by(id: flag.id)
expect(off_topic).not_to eq(nil)
expect(off_topic.agreed_at).not_to eq(nil)
second_post.reload
expect(second_post.bookmark_count).to eq(0)
expect(second_post.off_topic_count).to eq(1)
jobs = Jobs::SendSystemMessage.jobs
expect(jobs.size).to eq(1)
Jobs::SendSystemMessage.new.execute(jobs[0]["args"][0].with_indifferent_access)
expect(Post.last.raw).to eq(I18n.t(
"system_messages.flags_agreed_and_post_deleted.text_body_template",
flagged_post_raw_content: second_post.raw,
url: url,
flag_reason: I18n.t(
"flag_reasons.#{PostActionType.flag_types[off_topic.post_action_type_id]}",
locale: SiteSetting.default_locale,
base_path: Discourse.base_path
),
site_name: SiteSetting.title,
base_url: Discourse.base_url
).strip)
end
it "should not send the flags_agreed_and_post_deleted message if it was deleted by system" do
expect(ReviewableFlaggedPost.pending.count).to eq(1)
PostDestroyer.new(Discourse.system_user, second_post).destroy
expect(Jobs::SendSystemMessage.jobs.size).to eq(0)
expect(ReviewableFlaggedPost.pending.count).to eq(0)
end
it "should not send the flags_agreed_and_post_deleted message if it was deleted by author" do
SiteSetting.delete_removed_posts_after = 0
expect(ReviewableFlaggedPost.pending.count).to eq(1)
PostDestroyer.new(second_post.user, second_post).destroy
expect(Jobs::SendSystemMessage.jobs.size).to eq(0)
expect(ReviewableFlaggedPost.pending.count).to eq(0)
end
it "should not send the flags_agreed_and_post_deleted message if flags were ignored" do
expect(ReviewableFlaggedPost.pending.count).to eq(1)
flag_result.reviewable.perform(moderator, :ignore)
second_post.reload
expect(ReviewableFlaggedPost.pending.count).to eq(0)
PostDestroyer.new(moderator, second_post).destroy
expect(Jobs::SendSystemMessage.jobs.size).to eq(0)
end
it "should not send the flags_agreed_and_post_deleted message if defer_flags is true" do
expect(ReviewableFlaggedPost.pending.count).to eq(1)
PostDestroyer.new(moderator, second_post, defer_flags: true).destroy
expect(Jobs::SendSystemMessage.jobs.size).to eq(0)
expect(ReviewableFlaggedPost.pending.count).to eq(0)
end
it "should set the deleted_public_actions custom field" do
PostDestroyer.new(moderator, second_post).destroy
expect(second_post.custom_fields["deleted_public_actions"]).to eq("#{bookmark.id}")
end
end
describe "user actions" do
let(:codinghorror) { Fabricate(:coding_horror) }
let(:second_post) { Fabricate(:post, topic_id: post.topic_id) }
def create_user_action(action_type)
UserAction.log_action!(action_type: action_type,
user_id: codinghorror.id,
acting_user_id: codinghorror.id,
target_topic_id: second_post.topic_id,
target_post_id: second_post.id)
end
it "should delete the user actions" do
bookmark = create_user_action(UserAction::BOOKMARK)
like = create_user_action(UserAction::LIKE)
PostDestroyer.new(moderator, second_post).destroy
expect(UserAction.find_by(id: bookmark.id)).to be_nil
expect(UserAction.find_by(id: like.id)).to be_nil
end
end
describe 'topic links' do
let!(:first_post) { Fabricate(:post) }
let!(:topic) { first_post.topic }
let!(:second_post) { Fabricate(:post_with_external_links, topic: topic) }
before { TopicLink.extract_from(second_post) }
it 'should destroy the topic links when moderator destroys the post' do
PostDestroyer.new(moderator, second_post.reload).destroy
expect(topic.topic_links.count).to eq(0)
end
it 'should destroy the topic links when the user destroys the post' do
PostDestroyer.new(second_post.user, second_post.reload).destroy
expect(topic.topic_links.count).to eq(0)
end
end
end