431 lines
13 KiB
Ruby
431 lines
13 KiB
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
require 'spec_helper'
|
||
|
|
|
||
|
|
describe WikiPage::Meta do
|
||
|
|
let_it_be(:project) { create(:project) }
|
||
|
|
let_it_be(:other_project) { create(:project) }
|
||
|
|
|
||
|
|
describe 'Associations' do
|
||
|
|
it { is_expected.to belong_to(:project) }
|
||
|
|
it { is_expected.to have_many(:slugs) }
|
||
|
|
it { is_expected.to have_many(:events) }
|
||
|
|
|
||
|
|
it 'can find slugs' do
|
||
|
|
meta = create(:wiki_page_meta)
|
||
|
|
slugs = create_list(:wiki_page_slug, 3, wiki_page_meta: meta)
|
||
|
|
|
||
|
|
expect(meta.slugs).to match_array(slugs)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
describe 'Validations' do
|
||
|
|
subject do
|
||
|
|
described_class.new(title: 'some title', project: project)
|
||
|
|
end
|
||
|
|
|
||
|
|
it { is_expected.to validate_presence_of(:project_id) }
|
||
|
|
it { is_expected.to validate_presence_of(:title) }
|
||
|
|
|
||
|
|
it 'is forbidden to add extremely long titles' do
|
||
|
|
expect do
|
||
|
|
create(:wiki_page_meta, project: project, title: FFaker::Lorem.characters(300))
|
||
|
|
end.to raise_error(ActiveRecord::ValueTooLong)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'is forbidden to have two records for the same project with the same canonical_slug' do
|
||
|
|
the_slug = generate(:sluggified_title)
|
||
|
|
create(:wiki_page_meta, canonical_slug: the_slug, project: project)
|
||
|
|
|
||
|
|
in_violation = build(:wiki_page_meta, canonical_slug: the_slug, project: project)
|
||
|
|
|
||
|
|
expect(in_violation).not_to be_valid
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
describe '#canonical_slug' do
|
||
|
|
subject { described_class.find(meta.id) }
|
||
|
|
|
||
|
|
let_it_be(:meta) do
|
||
|
|
described_class.create(title: generate(:wiki_page_title), project: project)
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'there are no slugs' do
|
||
|
|
it { is_expected.to have_attributes(canonical_slug: be_nil) }
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'can be set on initialization' do
|
||
|
|
meta = create(:wiki_page_meta, canonical_slug: 'foo')
|
||
|
|
|
||
|
|
expect(meta.canonical_slug).to eq('foo')
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we have some non-canonical slugs' do
|
||
|
|
before do
|
||
|
|
create_list(:wiki_page_slug, 2, wiki_page_meta: subject)
|
||
|
|
end
|
||
|
|
|
||
|
|
it { is_expected.to have_attributes(canonical_slug: be_nil) }
|
||
|
|
|
||
|
|
it 'issues at most one query' do
|
||
|
|
expect { subject.canonical_slug }.not_to exceed_query_limit(1)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'issues no queries if we already know the slug' do
|
||
|
|
subject.canonical_slug
|
||
|
|
|
||
|
|
expect { subject.canonical_slug }.not_to exceed_query_limit(0)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we have a canonical slug' do
|
||
|
|
before do
|
||
|
|
create_list(:wiki_page_slug, 2, wiki_page_meta: subject)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'has the correct value' do
|
||
|
|
slug = create(:wiki_page_slug, :canonical, wiki_page_meta: subject)
|
||
|
|
|
||
|
|
is_expected.to have_attributes(canonical_slug: slug.slug)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
describe 'canonical_slug=' do
|
||
|
|
shared_examples 'canonical_slug setting examples' do
|
||
|
|
# Constant overhead of two queries for the transaction
|
||
|
|
let(:upper_query_limit) { query_limit + 2 }
|
||
|
|
let(:lower_query_limit) { [upper_query_limit - 1, 0].max}
|
||
|
|
let(:other_slug) { generate(:sluggified_title) }
|
||
|
|
|
||
|
|
it 'changes it to the correct value' do
|
||
|
|
subject.canonical_slug = slug
|
||
|
|
|
||
|
|
expect(subject).to have_attributes(canonical_slug: slug)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'ensures the slug is in the db' do
|
||
|
|
subject.canonical_slug = slug
|
||
|
|
|
||
|
|
expect(subject.slugs.canonical.where(slug: slug)).to exist
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'issues at most N queries' do
|
||
|
|
expect { subject.canonical_slug = slug }.not_to exceed_query_limit(upper_query_limit)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'issues fewer queries if we already know the current slug' do
|
||
|
|
subject.canonical_slug = other_slug
|
||
|
|
|
||
|
|
expect { subject.canonical_slug = slug }.not_to exceed_query_limit(lower_query_limit)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the slug is not known to us' do
|
||
|
|
let(:slug) { generate(:sluggified_title) }
|
||
|
|
let(:query_limit) { 8 }
|
||
|
|
|
||
|
|
include_examples 'canonical_slug setting examples'
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the slug is already in the DB (but not canonical)' do
|
||
|
|
let_it_be(:slug_record) { create(:wiki_page_slug, wiki_page_meta: meta) }
|
||
|
|
let(:slug) { slug_record.slug }
|
||
|
|
let(:query_limit) { 4 }
|
||
|
|
|
||
|
|
include_examples 'canonical_slug setting examples'
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the slug is already in the DB (and canonical)' do
|
||
|
|
let_it_be(:slug_record) { create(:wiki_page_slug, :canonical, wiki_page_meta: meta) }
|
||
|
|
let(:slug) { slug_record.slug }
|
||
|
|
let(:query_limit) { 4 }
|
||
|
|
|
||
|
|
include_examples 'canonical_slug setting examples'
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the slug is up to date and in the DB' do
|
||
|
|
let(:slug) { generate(:sluggified_title) }
|
||
|
|
|
||
|
|
before do
|
||
|
|
subject.canonical_slug = slug
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'canonical_slug setting examples' do
|
||
|
|
let(:other_slug) { slug }
|
||
|
|
let(:upper_query_limit) { 0 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
describe '.find_or_create' do
|
||
|
|
let(:old_title) { generate(:wiki_page_title) }
|
||
|
|
let(:last_known_slug) { generate(:sluggified_title) }
|
||
|
|
let(:current_slug) { wiki_page.slug }
|
||
|
|
let(:title) { wiki_page.title }
|
||
|
|
let(:wiki_page) { create(:wiki_page, project: project) }
|
||
|
|
|
||
|
|
def find_record
|
||
|
|
described_class.find_or_create(last_known_slug, wiki_page)
|
||
|
|
end
|
||
|
|
|
||
|
|
def create_previous_version(title = old_title, slug = last_known_slug)
|
||
|
|
create(:wiki_page_meta, title: title, project: project, canonical_slug: slug)
|
||
|
|
end
|
||
|
|
|
||
|
|
def create_context
|
||
|
|
# Ensure that we behave nicely with respect to other projects
|
||
|
|
# We have:
|
||
|
|
# - page in other project with same canonical_slug
|
||
|
|
create(:wiki_page_meta, project: other_project, canonical_slug: wiki_page.slug)
|
||
|
|
|
||
|
|
# - page in same project with different canonical_slug, but with
|
||
|
|
# an old slug that = canonical_slug
|
||
|
|
different_slug = generate(:sluggified_title)
|
||
|
|
create(:wiki_page_meta, project: project, canonical_slug: different_slug)
|
||
|
|
.slugs.create(slug: wiki_page.slug)
|
||
|
|
end
|
||
|
|
|
||
|
|
shared_examples 'metadata examples' do
|
||
|
|
it 'establishes the correct state', :aggregate_failures do
|
||
|
|
create_context
|
||
|
|
|
||
|
|
meta = find_record
|
||
|
|
|
||
|
|
expect(meta).to have_attributes(
|
||
|
|
valid?: true,
|
||
|
|
canonical_slug: wiki_page.slug,
|
||
|
|
title: wiki_page.title,
|
||
|
|
project: wiki_page.wiki.project
|
||
|
|
)
|
||
|
|
expect(meta.slugs.where(slug: last_known_slug)).to exist
|
||
|
|
expect(meta.slugs.canonical.where(slug: wiki_page.slug)).to exist
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'makes a reasonable number of DB queries' do
|
||
|
|
expect(project).to eq(wiki_page.wiki.project)
|
||
|
|
|
||
|
|
expect { find_record }.not_to exceed_query_limit(query_limit)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the slug is too long' do
|
||
|
|
let(:last_known_slug) { FFaker::Lorem.characters(2050) }
|
||
|
|
|
||
|
|
it 'raises an error' do
|
||
|
|
expect { find_record }.to raise_error ActiveRecord::ValueTooLong
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'a conflicting record exists' do
|
||
|
|
before do
|
||
|
|
create(:wiki_page_meta, project: project, canonical_slug: last_known_slug)
|
||
|
|
create(:wiki_page_meta, project: project, canonical_slug: current_slug)
|
||
|
|
end
|
||
|
|
|
||
|
|
it 'raises an error' do
|
||
|
|
expect { find_record }.to raise_error(ActiveRecord::RecordInvalid)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'no existing record exists' do
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# The base case is 5 queries:
|
||
|
|
# - 2 for the outer transaction
|
||
|
|
# - 1 to find the metadata object if it exists
|
||
|
|
# - 1 to create it if it does not
|
||
|
|
# - 1 to insert last_known_slug and current_slug
|
||
|
|
#
|
||
|
|
# (Log has been edited for clarity)
|
||
|
|
# SAVEPOINT active_record_2
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_meta
|
||
|
|
# INNER JOIN wiki_page_slugs
|
||
|
|
# ON wiki_page_slugs.wiki_page_meta_id = wiki_page_meta.id
|
||
|
|
# WHERE wiki_page_meta.project_id = ?
|
||
|
|
# AND wiki_page_slugs.canonical = TRUE
|
||
|
|
# AND wiki_page_slugs.slug IN (?,?)
|
||
|
|
# LIMIT 2
|
||
|
|
#
|
||
|
|
# INSERT INTO wiki_page_meta (project_id, title) VALUES (?, ?) RETURNING id
|
||
|
|
#
|
||
|
|
# INSERT INTO wiki_page_slugs (wiki_page_meta_id,slug,canonical)
|
||
|
|
# VALUES (?, ?, ?) (?, ?, ?)
|
||
|
|
# ON CONFLICT DO NOTHING RETURNING id
|
||
|
|
#
|
||
|
|
# RELEASE SAVEPOINT active_record_2
|
||
|
|
let(:query_limit) { 5 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'the last_known_slug is the same as the current slug, as on creation' do
|
||
|
|
let(:last_known_slug) { current_slug }
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# Identical to the base case.
|
||
|
|
let(:query_limit) { 5 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'a record exists in the DB in the correct state' do
|
||
|
|
let(:last_known_slug) { current_slug }
|
||
|
|
let(:old_title) { title }
|
||
|
|
|
||
|
|
before do
|
||
|
|
create_previous_version
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# We just need to do the initial query, and the outer transaction
|
||
|
|
# SAVEPOINT active_record_2
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_meta
|
||
|
|
# INNER JOIN wiki_page_slugs
|
||
|
|
# ON wiki_page_slugs.wiki_page_meta_id = wiki_page_meta.id
|
||
|
|
# WHERE wiki_page_meta.project_id = ?
|
||
|
|
# AND wiki_page_slugs.canonical = TRUE
|
||
|
|
# AND wiki_page_slugs.slug = ?
|
||
|
|
# LIMIT 2
|
||
|
|
#
|
||
|
|
# RELEASE SAVEPOINT active_record_2
|
||
|
|
let(:query_limit) { 3 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we need to update the slug, but not the title' do
|
||
|
|
let(:old_title) { title }
|
||
|
|
|
||
|
|
before do
|
||
|
|
create_previous_version
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# Here we need:
|
||
|
|
# - 2 for the outer transaction
|
||
|
|
# - 1 to find the record
|
||
|
|
# - 1 to insert the new slug
|
||
|
|
# - 3 to set canonical state correctly
|
||
|
|
#
|
||
|
|
# SAVEPOINT active_record_2
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_meta
|
||
|
|
# INNER JOIN wiki_page_slugs
|
||
|
|
# ON wiki_page_slugs.wiki_page_meta_id = wiki_page_meta.id
|
||
|
|
# WHERE wiki_page_meta.project_id = ?
|
||
|
|
# AND wiki_page_slugs.canonical = TRUE
|
||
|
|
# AND wiki_page_slugs.slug = ?
|
||
|
|
# LIMIT 1
|
||
|
|
#
|
||
|
|
# INSERT INTO wiki_page_slugs (wiki_page_meta_id,slug,canonical)
|
||
|
|
# VALUES (?, ?, ?) ON CONFLICT DO NOTHING RETURNING id
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_slugs
|
||
|
|
# WHERE wiki_page_slugs.wiki_page_meta_id = ?
|
||
|
|
# AND wiki_page_slugs.slug = ?
|
||
|
|
# LIMIT 1
|
||
|
|
# UPDATE wiki_page_slugs SET canonical = FALSE WHERE wiki_page_meta_id = ?
|
||
|
|
# UPDATE wiki_page_slugs SET canonical = TRUE WHERE id = ?
|
||
|
|
#
|
||
|
|
# RELEASE SAVEPOINT active_record_2
|
||
|
|
let(:query_limit) { 7 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we need to update the title, but not the slug' do
|
||
|
|
let(:last_known_slug) { wiki_page.slug }
|
||
|
|
|
||
|
|
before do
|
||
|
|
create_previous_version
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# Same as minimal case, plus one query to update the title.
|
||
|
|
#
|
||
|
|
# SAVEPOINT active_record_2
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_meta
|
||
|
|
# INNER JOIN wiki_page_slugs
|
||
|
|
# ON wiki_page_slugs.wiki_page_meta_id = wiki_page_meta.id
|
||
|
|
# WHERE wiki_page_meta.project_id = ?
|
||
|
|
# AND wiki_page_slugs.canonical = TRUE
|
||
|
|
# AND wiki_page_slugs.slug = ?
|
||
|
|
# LIMIT 1
|
||
|
|
#
|
||
|
|
# UPDATE wiki_page_meta SET title = ? WHERE id = ?
|
||
|
|
#
|
||
|
|
# RELEASE SAVEPOINT active_record_2
|
||
|
|
let(:query_limit) { 4 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we want to change the slug back to a previous version' do
|
||
|
|
let(:slug_1) { 'foo' }
|
||
|
|
let(:slug_2) { 'bar' }
|
||
|
|
|
||
|
|
let(:wiki_page) { create(:wiki_page, title: slug_1, project: project) }
|
||
|
|
let(:last_known_slug) { slug_2 }
|
||
|
|
|
||
|
|
before do
|
||
|
|
meta = create_previous_version(title, slug_1)
|
||
|
|
meta.canonical_slug = slug_2
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
let(:query_limit) { 7 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we want to change the slug a bunch of times' do
|
||
|
|
let(:slugs) { generate_list(:sluggified_title, 3) }
|
||
|
|
|
||
|
|
before do
|
||
|
|
meta = create_previous_version
|
||
|
|
slugs.each { |slug| meta.canonical_slug = slug }
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
let(:query_limit) { 7 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context 'we need to update the title and the slug' do
|
||
|
|
before do
|
||
|
|
create_previous_version
|
||
|
|
end
|
||
|
|
|
||
|
|
include_examples 'metadata examples' do
|
||
|
|
# -- outer transaction
|
||
|
|
# SAVEPOINT active_record_2
|
||
|
|
#
|
||
|
|
# -- to find the record
|
||
|
|
# SELECT * FROM wiki_page_meta
|
||
|
|
# INNER JOIN wiki_page_slugs
|
||
|
|
# ON wiki_page_slugs.wiki_page_meta_id = wiki_page_meta.id
|
||
|
|
# WHERE wiki_page_meta.project_id = ?
|
||
|
|
# AND wiki_page_slugs.canonical = TRUE
|
||
|
|
# AND wiki_page_slugs.slug IN (?,?)
|
||
|
|
# LIMIT 2
|
||
|
|
#
|
||
|
|
# -- to update the title
|
||
|
|
# UPDATE wiki_page_meta SET title = ? WHERE id = ?
|
||
|
|
#
|
||
|
|
# -- to update slug
|
||
|
|
# INSERT INTO wiki_page_slugs (wiki_page_meta_id,slug,canonical)
|
||
|
|
# VALUES (?, ?, ?) ON CONFLICT DO NOTHING RETURNING id
|
||
|
|
#
|
||
|
|
# UPDATE wiki_page_slugs SET canonical = FALSE WHERE wiki_page_meta_id = ?
|
||
|
|
#
|
||
|
|
# SELECT * FROM wiki_page_slugs
|
||
|
|
# WHERE wiki_page_slugs.wiki_page_meta_id = ?
|
||
|
|
# AND wiki_page_slugs.slug = ?
|
||
|
|
# LIMIT 1
|
||
|
|
#
|
||
|
|
# UPDATE wiki_page_slugs SET canonical = TRUE WHERE id = ?
|
||
|
|
#
|
||
|
|
# RELEASE SAVEPOINT active_record_2
|
||
|
|
let(:query_limit) { 8 }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|