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mastodon/spec/services/account_search_service_spec.rb
Eugen Rochko 8fdff2748f
Add more accurate account search (#11537)
* Add more accurate account search

When ElasticSearch is available, a more accurate search is implemented:

- Using edge n-gram index for acct and display name
- Using asciifolding and cjk width normalization on display names
- Using Gaussian decay on account activity for additional scoring (recency)
- Using followers/friends ratio for additional scoring (spamminess)
- Using followers number for additional scoring (size)

The exact match precedence only takes effect when the input conforms
to the username format and the username part of it is complete, i.e.
when the user started typing the domain part.

* Support single-letter usernames

* Fix tests

* Fix not picking up account updates

* Add weights and normalization for scores, skip zero terms queries

* Use local counts for accounts index, adjust search parameters

* Fix mistakes

* Using updated_at of accounts is inadequate for remote accounts
2019-08-16 01:24:03 +02:00

89 lines
2.9 KiB
Ruby

require 'rails_helper'
describe AccountSearchService, type: :service do
describe '#call' do
context 'with a query to ignore' do
it 'returns empty array for missing query' do
results = subject.call('', nil, limit: 10)
expect(results).to eq []
end
it 'returns empty array for limit zero' do
Fabricate(:account, username: 'match')
results = subject.call('match', nil, limit: 0)
expect(results).to eq []
end
end
context 'searching for a simple term that is not an exact match' do
it 'does not return a nil entry in the array for the exact match' do
account = Fabricate(:account, username: 'matchingusername')
results = subject.call('match', nil, limit: 5)
expect(results).to eq [account]
end
end
context 'when there is a local domain' do
around do |example|
before = Rails.configuration.x.local_domain
example.run
Rails.configuration.x.local_domain = before
end
it 'returns exact match first' do
remote = Fabricate(:account, username: 'a', domain: 'remote', display_name: 'e')
remote_too = Fabricate(:account, username: 'b', domain: 'remote', display_name: 'e')
exact = Fabricate(:account, username: 'e')
Rails.configuration.x.local_domain = 'example.com'
results = subject.call('e@example.com', nil, limit: 2)
expect(results.size).to eq 2
expect(results).to eq([exact, remote]).or eq([exact, remote_too])
end
end
context 'when there is a domain but no exact match' do
it 'follows the remote account when resolve is true' do
service = double(call: nil)
allow(ResolveAccountService).to receive(:new).and_return(service)
results = subject.call('newuser@remote.com', nil, limit: 10, resolve: true)
expect(service).to have_received(:call).with('newuser@remote.com')
end
it 'does not follow the remote account when resolve is false' do
service = double(call: nil)
allow(ResolveAccountService).to receive(:new).and_return(service)
results = subject.call('newuser@remote.com', nil, limit: 10, resolve: false)
expect(service).not_to have_received(:call)
end
end
it 'returns the fuzzy match first, and does not return suspended exacts' do
partial = Fabricate(:account, username: 'exactness')
exact = Fabricate(:account, username: 'exact', suspended: true)
results = subject.call('exact', nil, limit: 10)
expect(results.size).to eq 1
expect(results).to eq [partial]
end
it "does not return suspended remote accounts" do
remote = Fabricate(:account, username: 'a', domain: 'remote', display_name: 'e', suspended: true)
results = subject.call('a@example.com', nil, limit: 2)
expect(results.size).to eq 0
expect(results).to eq []
end
end
end