discourse/spec/components/post_revisor_spec.rb

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require 'rails_helper'
require 'post_revisor'
describe PostRevisor do
let(:topic) { Fabricate(:topic) }
let(:newuser) { Fabricate(:newuser) }
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let(:post_args) { { user: newuser, topic: topic } }
context 'TopicChanges' do
let(:tc) {
topic.reload
PostRevisor::TopicChanges.new(topic, topic.user)
}
it 'provides a guardian' do
expect(tc.guardian).to be_an_instance_of Guardian
end
it 'tracks changes properly' do
expect(tc.diff).to eq({})
# it remembers changes we tell it to
tc.record_change('height', '180cm', '170cm')
expect(tc.diff['height']).to eq(['180cm', '170cm'])
# it works with arrays of values
tc.record_change('colors', nil, ['red', 'blue'])
expect(tc.diff['colors']).to eq([nil, ['red', 'blue']])
# it does not record changes to the same val
tc.record_change('wat', 'js', 'js')
expect(tc.diff['wat']).to be_nil
tc.record_change('tags', ['a', 'b'], ['a', 'b'])
expect(tc.diff['tags']).to be_nil
end
end
context 'editing category' do
it 'does not revise category when no permission to create a topic in category' do
category = Fabricate(:category)
category.set_permissions(staff: :full)
category.save!
post = create_post
old_id = post.topic.category_id
post.revise(post.user, category_id: category.id)
post.reload
expect(post.topic.category_id).to eq(old_id)
category.set_permissions(everyone: :full)
category.save!
post.revise(post.user, category_id: category.id)
post.reload
expect(post.topic.category_id).to eq(category.id)
end
it 'does not revise category when the destination category requires topic approval' do
new_category = Fabricate(:category)
new_category.custom_fields[Category::REQUIRE_TOPIC_APPROVAL] = true
new_category.save!
post = create_post
old_category_id = post.topic.category_id
post.revise(post.user, category_id: new_category.id)
expect(post.reload.topic.category_id).to eq(old_category_id)
new_category.custom_fields[Category::REQUIRE_TOPIC_APPROVAL] = false
new_category.save!
post.revise(post.user, category_id: new_category.id)
expect(post.reload.topic.category_id).to eq(new_category.id)
end
end
context 'revise wiki' do
before do
# There used to be a bug where wiki changes were considered posting "too similar"
# so this is enabled and checked
$redis.delete_prefixed('unique-post')
SiteSetting.unique_posts_mins = 10
end
it 'allows the user to change it to a wiki' do
pc = PostCreator.new(newuser, topic_id: topic.id, raw: 'this is a post that will become a wiki')
post = pc.create
expect(post.revise(post.user, wiki: true)).to be_truthy
post.reload
expect(post.wiki).to be_truthy
end
end
context 'revise' do
let(:post) { Fabricate(:post, post_args) }
let(:first_version_at) { post.last_version_at }
subject { PostRevisor.new(post) }
describe 'with the same body' do
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it "doesn't change version" do
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expect {
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expect(subject.revise!(post.user, raw: post.raw)).to eq(false)
post.reload
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}.not_to change(post, :version)
end
end
describe 'with nil raw contents' do
it "doesn't change version" do
expect {
expect(subject.revise!(post.user, raw: nil)).to eq(false)
post.reload
}.not_to change(post, :version)
end
end
describe 'ninja editing' do
it 'correctly applies edits' do
SiteSetting.editing_grace_period = 1.minute
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subject.revise!(post.user, { raw: 'updated body' }, revised_at: post.updated_at + 10.seconds)
post.reload
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expect(post.version).to eq(1)
expect(post.public_version).to eq(1)
expect(post.revisions.size).to eq(0)
expect(post.last_version_at).to eq(first_version_at)
expect(subject.category_changed).to be_blank
end
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it "does create a new version if a large diff happens" do
SiteSetting.editing_grace_period_max_diff = 10
post = Fabricate(:post, raw: 'hello world')
revisor = PostRevisor.new(post)
revisor.revise!(post.user, { raw: 'hello world123456789' }, revised_at: post.updated_at + 1.second)
post.reload
expect(post.version).to eq(1)
revisor = PostRevisor.new(post)
revisor.revise!(post.user, { raw: 'hello world12345678901' }, revised_at: post.updated_at + 1.second)
post.reload
expect(post.version).to eq(2)
expect(post.revisions.first.modifications["raw"][0]).to eq("hello world")
expect(post.revisions.first.modifications["cooked"][0]).to eq("<p>hello world</p>")
SiteSetting.editing_grace_period_max_diff_high_trust = 100
post.user.update_columns(trust_level: 2)
revisor = PostRevisor.new(post)
revisor.revise!(post.user, { raw: 'hello world12345678901 123456789012' }, revised_at: post.updated_at + 1.second)
post.reload
expect(post.version).to eq(2)
expect(post.revisions.count).to eq(1)
end
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it "doesn't create a new version" do
SiteSetting.editing_grace_period = 1.minute
SiteSetting.editing_grace_period_max_diff = 100
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# making a revision
subject.revise!(post.user, { raw: 'updated body' }, revised_at: post.updated_at + SiteSetting.editing_grace_period + 1.seconds)
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# "roll back"
subject.revise!(post.user, { raw: 'Hello world' }, revised_at: post.updated_at + SiteSetting.editing_grace_period + 2.seconds)
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post.reload
expect(post.version).to eq(1)
expect(post.public_version).to eq(1)
expect(post.revisions.size).to eq(0)
end
end
describe 'revision much later' do
let!(:revised_at) { post.updated_at + 2.minutes }
before do
SiteSetting.editing_grace_period = 1.minute
subject.revise!(post.user, { raw: 'updated body' }, revised_at: revised_at)
post.reload
end
it "doesn't update a category" do
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expect(subject.category_changed).to be_blank
end
it 'updates the versions' do
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expect(post.version).to eq(2)
expect(post.public_version).to eq(2)
end
it 'creates a new revision' do
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expect(post.revisions.size).to eq(1)
end
it "updates the last_version_at" do
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expect(post.last_version_at.to_i).to eq(revised_at.to_i)
end
describe "new edit window" do
before do
subject.revise!(post.user, { raw: 'yet another updated body' }, revised_at: revised_at)
post.reload
end
it "doesn't create a new version if you do another" do
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expect(post.version).to eq(2)
expect(post.public_version).to eq(2)
end
it "doesn't change last_version_at" do
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expect(post.last_version_at.to_i).to eq(revised_at.to_i)
end
it "doesn't update a category" do
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expect(subject.category_changed).to be_blank
end
context "after second window" do
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let!(:new_revised_at) { revised_at + 2.minutes }
before do
subject.revise!(post.user, { raw: 'yet another, another updated body' }, revised_at: new_revised_at)
post.reload
end
it "does create a new version after the edit window" do
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expect(post.version).to eq(3)
expect(post.public_version).to eq(3)
end
it "does create a new version after the edit window" do
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expect(post.last_version_at.to_i).to eq(new_revised_at.to_i)
end
end
end
end
describe 'category topic' do
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let!(:category) do
category = Fabricate(:category)
category.update_column(:topic_id, topic.id)
category
end
let(:new_description) { "this is my new description." }
it "should have no description by default" do
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expect(category.description).to be_blank
end
context "one paragraph description" do
before do
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subject.revise!(post.user, raw: new_description)
category.reload
end
it "returns the changed category info" do
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expect(subject.category_changed).to eq(category)
end
it "updates the description of the category" do
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expect(category.description).to eq(new_description)
end
end
context "multiple paragraph description" do
before do
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subject.revise!(post.user, raw: "#{new_description}\n\nOther content goes here.")
category.reload
end
it "returns the changed category info" do
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expect(subject.category_changed).to eq(category)
end
it "updates the description of the category" do
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expect(category.description).to eq(new_description)
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end
end
context "invalid description without paragraphs" do
before do
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subject.revise!(post.user, raw: "# This is a title")
category.reload
end
it "returns a error for the user" do
expect(post.errors.present?).to eq(true)
expect(post.errors.messages[:base].first).to be I18n.t("category.errors.description_incomplete")
end
it "doesn't update the description of the category" do
expect(category.description).to eq(nil)
end
end
context 'when updating back to the original paragraph' do
before do
category.update_column(:description, 'this is my description')
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subject.revise!(post.user, raw: Category.post_template)
category.reload
end
it "puts the description back to nothing" do
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expect(category.description).to be_blank
end
it "returns the changed category info" do
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expect(subject.category_changed).to eq(category)
end
end
end
describe 'rate limiter' do
let(:changed_by) { Fabricate(:coding_horror) }
it "triggers a rate limiter" do
EditRateLimiter.any_instance.expects(:performed!)
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subject.revise!(changed_by, raw: 'updated body')
end
end
describe "admin editing a new user's post" do
let(:changed_by) { Fabricate(:admin) }
before do
SiteSetting.newuser_max_images = 0
url = "http://i.imgur.com/wfn7rgU.jpg"
Oneboxer.stubs(:onebox).with(url, anything).returns("<img src='#{url}'>")
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subject.revise!(changed_by, raw: "So, post them here!\n#{url}")
end
it "allows an admin to insert images into a new user's post" do
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expect(post.errors).to be_blank
end
it "marks the admin as the last updater" do
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expect(post.last_editor_id).to eq(changed_by.id)
end
end
describe "new user editing their own post" do
before do
SiteSetting.newuser_max_images = 0
url = "http://i.imgur.com/FGg7Vzu.gif"
Oneboxer.stubs(:cached_onebox).with(url, anything).returns("<img src='#{url}'>")
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subject.revise!(post.user, raw: "So, post them here!\n#{url}")
end
it "doesn't allow images to be inserted" do
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expect(post.errors).to be_present
end
end
describe 'with a new body' do
before do
SiteSetting.editing_grace_period_max_diff = 1000
end
let(:changed_by) { Fabricate(:coding_horror) }
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let!(:result) { subject.revise!(changed_by, raw: "lets update the body. Здравствуйте") }
it 'correctly updates raw' do
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expect(result).to eq(true)
expect(post.raw).to eq("lets update the body. Здравствуйте")
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expect(post.invalidate_oneboxes).to eq(true)
expect(post.version).to eq(2)
expect(post.public_version).to eq(2)
expect(post.revisions.size).to eq(1)
expect(post.revisions.first.user_id).to eq(changed_by.id)
# updates word count
expect(post.word_count).to eq(5)
post.topic.reload
expect(post.topic.word_count).to eq(5)
end
context 'second poster posts again quickly' do
it 'is a ninja edit, because the second poster posted again quickly' do
SiteSetting.editing_grace_period = 1.minute
subject.revise!(changed_by, { raw: 'yet another updated body' }, revised_at: post.updated_at + 10.seconds)
post.reload
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expect(post.version).to eq(2)
expect(post.public_version).to eq(2)
expect(post.revisions.size).to eq(1)
end
end
context 'passing skip_revision as true' do
before do
SiteSetting.editing_grace_period = 1.minute
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subject.revise!(changed_by, { raw: 'yet another updated body' }, revised_at: post.updated_at + 10.hours, skip_revision: true)
post.reload
end
it 'does not create new revision ' do
expect(post.version).to eq(2)
expect(post.public_version).to eq(2)
expect(post.revisions.size).to eq(1)
end
end
end
describe "topic excerpt" do
it "topic excerpt is updated only if first post is revised" do
revisor = PostRevisor.new(post)
first_post = topic.posts.by_post_number.first
expect {
revisor.revise!(first_post.user, { raw: 'Edit the first post' }, revised_at: first_post.updated_at + 10.seconds)
topic.reload
}.to change { topic.excerpt }
second_post = Fabricate(:post, post_args.merge(post_number: 2, topic_id: topic.id))
expect {
PostRevisor.new(second_post).revise!(second_post.user, raw: 'Edit the 2nd post')
topic.reload
}.to_not change { topic.excerpt }
end
end
it "doesn't strip starting whitespaces" do
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subject.revise!(post.user, raw: " <-- whitespaces --> ")
post.reload
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expect(post.raw).to eq(" <-- whitespaces -->")
end
context "#publish_changes" do
let!(:post) { Fabricate(:post, topic: topic) }
it "should publish topic changes to clients" do
revisor = PostRevisor.new(topic.ordered_posts.first, topic)
message = MessageBus.track_publish("/topic/#{topic.id}") do
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revisor.revise!(newuser, title: 'this is a test topic')
end.first
payload = message.data
expect(payload[:reload_topic]).to eq(true)
end
end
context "logging staff edits" do
let(:moderator) { Fabricate(:moderator) }
it "doesn't log when a regular user revises a post" do
subject.revise!(
post.user,
raw: "lets totally update the body"
)
log = UserHistory.where(
acting_user_id: post.user.id,
action: UserHistory.actions[:post_edit]
)
expect(log).to be_blank
end
it "logs an edit when a staff member revises a post" do
subject.revise!(
moderator,
raw: "lets totally update the body"
)
log = UserHistory.where(
acting_user_id: moderator.id,
action: UserHistory.actions[:post_edit]
).first
expect(log).to be_present
expect(log.details).to eq("Hello world\n\n---\n\nlets totally update the body")
end
it "doesn't log an edit when a staff member edits their own post" do
revisor = PostRevisor.new(
Fabricate(:post, user: moderator)
)
revisor.revise!(
moderator,
raw: "my own edit to my own thing"
)
log = UserHistory.where(
acting_user_id: moderator.id,
action: UserHistory.actions[:post_edit]
)
expect(log).to be_blank
end
end
context "staff_edit_locks_post" do
context "disabled" do
let(:moderator) { Fabricate(:moderator) }
before do
SiteSetting.staff_edit_locks_post = false
end
it "does not lock the post when revised" do
result = subject.revise!(
moderator,
raw: "lets totally update the body"
)
expect(result).to eq(true)
post.reload
expect(post).not_to be_locked
end
end
context "enabled" do
let(:moderator) { Fabricate(:moderator) }
before do
SiteSetting.staff_edit_locks_post = true
end
it "locks the post when revised by staff" do
result = subject.revise!(
moderator,
raw: "lets totally update the body"
)
expect(result).to eq(true)
post.reload
expect(post).to be_locked
end
it "doesn't lock the wiki posts" do
post.wiki = true
result = subject.revise!(
moderator,
raw: "some new raw content"
)
expect(result).to eq(true)
post.reload
expect(post).not_to be_locked
end
it "doesn't lock the post when the raw did not change" do
result = subject.revise!(
moderator,
title: "New topic title, cool!"
)
expect(result).to eq(true)
post.reload
expect(post.topic.title).to eq("New topic title, cool!")
expect(post).not_to be_locked
end
it "doesn't lock the post when revised by a regular user" do
result = subject.revise!(
Fabricate(:user),
raw: "lets totally update the body"
)
expect(result).to eq(true)
post.reload
expect(post).not_to be_locked
end
it "doesn't lock the post when revised by system user" do
result = subject.revise!(
Discourse.system_user,
raw: "I usually replace hotlinked images"
)
expect(result).to eq(true)
post.reload
expect(post).not_to be_locked
end
it "doesn't lock a staff member's post" do
staff_post = Fabricate(:post, user: moderator)
revisor = PostRevisor.new(staff_post)
result = revisor.revise!(
moderator,
raw: "lets totally update the body"
)
expect(result).to eq(true)
staff_post.reload
expect(staff_post).not_to be_locked
end
end
end
context "alerts" do
let(:mentioned_user) { Fabricate(:user) }
before do
SiteSetting.queue_jobs = false
end
it "generates a notification for a mention" do
expect {
subject.revise!(Fabricate(:user), raw: "Random user is mentioning @#{mentioned_user.username_lower}")
}.to change { Notification.where(notification_type: Notification.types[:mentioned]).count }
end
it "never generates a notification for a mention when the System user revise a post" do
expect {
subject.revise!(Discourse.system_user, raw: "System user is mentioning @#{mentioned_user.username_lower}")
}.not_to change { Notification.where(notification_type: Notification.types[:mentioned]).count }
end
end
context "tagging" do
context "tagging disabled" do
before do
SiteSetting.tagging_enabled = false
end
it "doesn't add the tags" do
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['totally', 'update'])
expect(result).to eq(true)
post.reload
expect(post.topic.tags.size).to eq(0)
end
end
context "tagging enabled" do
before do
SiteSetting.tagging_enabled = true
end
context "can create tags" do
before do
SiteSetting.min_trust_to_create_tag = 0
SiteSetting.min_trust_level_to_tag_topics = 0
end
it "can create all tags if none exist" do
expect {
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@result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['totally', 'update'])
}.to change { Tag.count }.by(2)
expect(@result).to eq(true)
post.reload
expect(post.topic.tags.map(&:name).sort).to eq(['totally', 'update'])
end
it "creates missing tags if some exist" do
Fabricate(:tag, name: 'totally')
expect {
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@result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['totally', 'update'])
}.to change { Tag.count }.by(1)
expect(@result).to eq(true)
post.reload
expect(post.topic.tags.map(&:name).sort).to eq(['totally', 'update'])
end
it "can remove all tags" do
topic.tags = [Fabricate(:tag, name: "super"), Fabricate(:tag, name: "stuff")]
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: [])
expect(result).to eq(true)
post.reload
expect(post.topic.tags.size).to eq(0)
end
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it "can remove all tags using tags_empty_array" do
topic.tags = [Fabricate(:tag, name: "stuff")]
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags_empty_array: "true")
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expect(result).to eq(true)
post.reload
expect(post.topic.tags.size).to eq(0)
end
it "can't add staff-only tags" do
create_staff_tags(['important'])
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['important', 'stuff'])
expect(result).to eq(false)
expect(post.topic.errors.present?).to eq(true)
end
it "staff can add staff-only tags" do
create_staff_tags(['important'])
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result = subject.revise!(Fabricate(:admin), raw: "lets totally update the body", tags: ['important', 'stuff'])
expect(result).to eq(true)
post.reload
expect(post.topic.tags.map(&:name).sort).to eq(['important', 'stuff'])
end
context "with staff-only tags" do
before do
create_staff_tags(['important'])
topic = post.topic
topic.tags = [Fabricate(:tag, name: "super"), Tag.where(name: "important").first, Fabricate(:tag, name: "stuff")]
end
it "staff-only tags can't be removed" do
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['stuff'])
expect(result).to eq(false)
expect(post.topic.errors.present?).to eq(true)
post.reload
expect(post.topic.tags.map(&:name).sort).to eq(['important', 'stuff', 'super'])
end
it "can't remove all tags if some are staff-only" do
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result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: [])
expect(result).to eq(false)
expect(post.topic.errors.present?).to eq(true)
post.reload
expect(post.topic.tags.map(&:name).sort).to eq(['important', 'stuff', 'super'])
end
it "staff-only tags can be removed by staff" do
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result = subject.revise!(Fabricate(:admin), raw: "lets totally update the body", tags: ['stuff'])
expect(result).to eq(true)
post.reload
expect(post.topic.tags.map(&:name)).to eq(['stuff'])
end
it "staff can remove all tags" do
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result = subject.revise!(Fabricate(:admin), raw: "lets totally update the body", tags: [])
expect(result).to eq(true)
post.reload
expect(post.topic.tags.size).to eq(0)
end
end
end
context "cannot create tags" do
before do
SiteSetting.min_trust_to_create_tag = 4
SiteSetting.min_trust_level_to_tag_topics = 0
end
it "only uses existing tags" do
Fabricate(:tag, name: 'totally')
expect {
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@result = subject.revise!(Fabricate(:user), raw: "lets totally update the body", tags: ['totally', 'update'])
}.to_not change { Tag.count }
expect(@result).to eq(true)
post.reload
expect(post.topic.tags.map(&:name)).to eq(['totally'])
end
end
end
end
end
end