discourse/spec/components/user_name_suggester_spec.rb

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# frozen_string_literal: true
require 'rails_helper'
require 'user_name_suggester'
describe UserNameSuggester do
describe '.suggest' do
before do
SiteSetting.min_username_length = 3
SiteSetting.max_username_length = 15
end
it "keeps adding numbers to the username" do
Fabricate(:user, username: 'sam')
Fabricate(:user, username: 'sAm1')
Fabricate(:user, username: 'sam2')
Fabricate(:user, username: 'sam4')
expect(UserNameSuggester.suggest('saM')).to eq('saM3')
end
it "doesn't raise an error on nil username" do
expect(UserNameSuggester.suggest(nil)).to eq(nil)
end
it "doesn't raise an error on integer username" do
expect(UserNameSuggester.suggest(999)).to eq('999')
end
it 'corrects weird characters' do
expect(UserNameSuggester.suggest("Darth%^Vader")).to eq('Darth_Vader')
end
it 'adds 1 to an existing username' do
user = Fabricate(:user)
expect(UserNameSuggester.suggest(user.username)).to eq("#{user.username}1")
end
it "adds numbers if it's too short" do
expect(UserNameSuggester.suggest('a')).to eq('a11')
end
it 'is able to guess a decent username from an email' do
expect(UserNameSuggester.suggest('bob@example.com')).to eq('bob')
end
it "has a special case for me and i emails" do
expect(UserNameSuggester.suggest('me@eviltrout.com')).to eq('eviltrout')
expect(UserNameSuggester.suggest('i@eviltrout.com')).to eq('eviltrout')
end
it "shortens very long suggestions" do
expect(UserNameSuggester.suggest("myreallylongnameisrobinwardesquire")).to eq('myreallylongnam')
end
it "makes room for the digit added if the username is too long" do
User.create(username: 'myreallylongnam', email: 'fake@discourse.org')
expect(UserNameSuggester.suggest("myreallylongnam")).to eq('myreallylongna1')
end
it "doesn't suggest reserved usernames" do
SiteSetting.reserved_usernames = 'myadmin|steve|steve1'
expect(UserNameSuggester.suggest("myadmin@hissite.com")).to eq('myadmin1')
expect(UserNameSuggester.suggest("steve")).to eq('steve2')
end
it "doesn't suggest generic usernames" do
UserNameSuggester::GENERIC_NAMES.each do |name|
expect(UserNameSuggester.suggest("#{name}@apple.org")).to eq('apple')
end
end
it "removes leading character if it is not alphanumeric" do
expect(UserNameSuggester.suggest(".myname")).to eq('myname')
end
it "allows leading _" do
expect(UserNameSuggester.suggest("_myname")).to eq('_myname')
end
it "removes trailing characters if they are invalid" do
expect(UserNameSuggester.suggest("myname!^$=")).to eq('myname')
end
it "allows dots in the middle" do
expect(UserNameSuggester.suggest("my.name")).to eq('my.name')
end
it "remove leading dots" do
expect(UserNameSuggester.suggest(".myname")).to eq('myname')
end
it "remove trailing dots" do
expect(UserNameSuggester.suggest("myname.")).to eq('myname')
end
it 'handles usernames with a sequence of 2 or more special chars' do
expect(UserNameSuggester.suggest('Darth__Vader')).to eq('Darth_Vader')
expect(UserNameSuggester.suggest('Darth_-_Vader')).to eq('Darth_Vader')
end
it 'should handle typical facebook usernames' do
expect(UserNameSuggester.suggest('roger.nelson.3344913')).to eq('roger.nelson.33')
end
it 'removes underscore at the end of long usernames that get truncated' do
expect(UserNameSuggester.suggest('uuuuuuuuuuuuuu_u')).to_not end_with('_')
end
it "adds number if it's too short after removing trailing underscore" do
User.stubs(:username_length).returns(8..8)
expect(UserNameSuggester.suggest('uuuuuuu_u')).to eq('uuuuuuu1')
end
context "with Unicode usernames disabled" do
before { SiteSetting.unicode_usernames = false }
it "transliterates some characters" do
expect(UserNameSuggester.suggest('Jørn')).to eq('Jorn')
end
it "replaces Unicode characters" do
expect(UserNameSuggester.suggest('طائر')).to eq('111')
expect(UserNameSuggester.suggest('πουλί')).to eq('111')
end
end
context "with Unicode usernames enabled" do
before { SiteSetting.unicode_usernames = true }
it "normalizes unicode usernames with Σ to lowercase" do
expect(UserNameSuggester.suggest('ΣΣ\'"ΣΣ')).to eq('σς_σς')
end
it "does not transliterate" do
expect(UserNameSuggester.suggest("Jørn")).to eq('Jørn')
end
it "does not replace Unicode characters" do
expect(UserNameSuggester.suggest('طائر')).to eq('طائر')
expect(UserNameSuggester.suggest('πουλί')).to eq('πουλί')
end
it "shortens usernames by counting grapheme clusters" do
SiteSetting.max_username_length = 10
expect(UserNameSuggester.suggest('बहुत-लंबा-उपयोगकर्ता-नाम')).to eq('बहुत-लंबा-उपयो')
end
it "adds numbers if it's too short" do
expect(UserNameSuggester.suggest('鳥')).to eq('鳥11')
# grapheme cluster consists of 3 code points
expect(UserNameSuggester.suggest('য়া')).to eq('য়া11')
end
it "does not skip ove allowed names" do
Fabricate(:user, username: 'sam')
Fabricate(:user, username: 'saM1')
Fabricate(:user, username: 'sam2')
expect(UserNameSuggester.suggest('SaM', 'Sam1')).to eq('Sam1')
end
it "normalizes usernames" do
actual = 'Löwe' # NFD, "Lo\u0308we"
expected = 'Löwe' # NFC, "L\u00F6we"
expect(UserNameSuggester.suggest(actual)).to eq(expected)
end
it "does not suggest a username longer than max column size" do
SiteSetting.max_username_length = 40
expect(UserNameSuggester.suggest('য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া'))
.to eq('য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া-য়া')
end
it "uses allowlist" do
SiteSetting.allowed_unicode_username_characters = "[äöüßÄÖÜẞ]"
expect(UserNameSuggester.suggest('πουλί')).to eq('111')
expect(UserNameSuggester.suggest('a鳥b')).to eq('a_b')
expect(UserNameSuggester.suggest('Löwe')).to eq('Löwe')
SiteSetting.allowed_unicode_username_characters = "[য়া]"
expect(UserNameSuggester.suggest('aয়াb鳥c')).to eq('aয়াb_c')
end
end
end
end