discourse/spec/components/post_merger_spec.rb

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# frozen_string_literal: true
require 'rails_helper'
require 'post_merger'
describe PostMerger do
let(:moderator) { Fabricate(:moderator) }
let(:admin) { Fabricate(:admin) }
let(:user) { Fabricate(:user) }
let(:post) { create_post }
let(:topic) { post.topic }
describe ".merge" do
it "should merge posts into the latest post correctly" do
reply1 = create_post(topic: topic, raw: 'The first reply', post_number: 2, user: user)
reply2 = create_post(topic: topic, raw: "The second reply\nSecond line", post_number: 3, user: user)
reply3 = create_post(topic: topic, raw: 'The third reply', post_number: 4, user: user)
replies = [reply3, reply2, reply1]
message = MessageBus.track_publish("/topic/#{topic.id}") { PostMerger.new(admin, replies).merge }.last
expect(message.data[:type]).to eq(:revised)
expect(message.data[:post_number]).to eq(reply3.post_number)
expect(reply1.trashed?).to eq(true)
expect(reply2.trashed?).to eq(true)
expect(reply3.deleted_at).to eq(nil)
expect(reply3.edit_reason).to eq(I18n.t(
"merge_posts.edit_reason",
count: replies.count - 1, username: admin.username
))
expect(reply3.raw).to eq(
"The first reply\n\nThe second reply\nSecond line\n\nThe third reply"
)
end
it "should not allow the first post in a topic to be merged" do
post.update!(user: user)
reply1 = create_post(topic: topic, post_number: post.post_number, user: user)
reply2 = create_post(topic: topic, post_number: post.post_number, user: user)
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expect { PostMerger.new(admin, [reply2, post, reply1]).merge }.to raise_error(Discourse::InvalidAccess)
end
it "should only allow staff user to merge posts" do
reply1 = create_post(topic: topic, post_number: post.post_number, user: user)
reply2 = create_post(topic: topic, post_number: post.post_number, user: user)
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expect { PostMerger.new(user, [reply2, reply1]).merge }.to raise_error(Discourse::InvalidAccess)
end
it "should not allow posts from different topics to be merged" do
another_post = create_post(user: post.user)
expect { PostMerger.new(user, [another_post, post]).merge }.to raise_error(
PostMerger::CannotMergeError, I18n.t("merge_posts.errors.different_topics")
)
end
it "should not allow posts from different users to be merged" do
another_post = create_post(user: user, topic_id: topic.id)
expect { PostMerger.new(user, [another_post, post]).merge }.to raise_error(
PostMerger::CannotMergeError, I18n.t("merge_posts.errors.different_users")
)
end
end
end