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|
# frozen_string_literal: true
require 'rails_helper'
describe LanguageDetector do
describe 'prepared_text' do
it 'returns unmodified string without special cases' do
string = 'just a regular string'
result = described_class.new(string).prepared_text
expect(result).to eq string
end
it 'collapses spacing in strings' do
string = 'The formatting in this is very odd'
result = described_class.new(string).prepared_text
expect(result).to eq 'The formatting in this is very odd'
end
it 'strips usernames from strings before detection' do
string = '@username Yeah, very surreal...! also @friend'
result = described_class.new(string).prepared_text
expect(result).to eq 'Yeah, very surreal...! also'
end
it 'strips URLs from strings before detection' do
string = 'Our website is https://example.com and also http://localhost.dev'
result = described_class.new(string).prepared_text
expect(result).to eq 'Our website is and also'
end
it 'strips #hashtags from strings before detection' do
string = 'Hey look at all the #animals and #fish'
result = described_class.new(string).prepared_text
expect(result).to eq 'Hey look at all the and'
end
end
describe 'to_iso_s' do
it 'detects english language for basic strings' do
strings = [
"Hello and welcome to mastodon how are you today?",
"I'd rather not!",
"a lot of people just want to feel righteous all the time and that's all that matters",
]
strings.each do |string|
result = described_class.new(string).to_iso_s
expect(result).to eq(:en), string
end
end
it 'detects spanish language' do
string = 'Obtener un Hola y bienvenidos a Mastodon'
result = described_class.new(string).to_iso_s
expect(result).to eq :es
end
describe 'when language can\'t be detected' do
it 'uses nil when sent an empty document' do
result = described_class.new('').to_iso_s
expect(result).to eq nil
end
describe 'because of a URL' do
it 'uses nil when sent just a URL' do
string = 'http://example.com/media/2kFTgOJLXhQf0g2nKB4'
cld_result = CLD3::NNetLanguageIdentifier.new(0, 2048).find_language(string)
expect(cld_result).not_to eq :en
result = described_class.new(string).to_iso_s
expect(result).to eq nil
end
end
describe 'with an account' do
it 'uses the account locale when present' do
account = double(user_locale: 'fr')
result = described_class.new('', account).to_iso_s
expect(result).to eq :fr
end
it 'uses nil when account is present but has no locale' do
account = double(user_locale: nil)
result = described_class.new('', account).to_iso_s
expect(result).to eq nil
end
end
describe 'with an `en` default locale' do
it 'uses nil for undetectable string' do
string = ''
result = described_class.new(string).to_iso_s
expect(result).to eq nil
end
end
describe 'with a non-`en` default locale' do
around(:each) do |example|
before = I18n.default_locale
I18n.default_locale = :ja
example.run
I18n.default_locale = before
end
it 'uses nil for undetectable string' do
string = ''
result = described_class.new(string).to_iso_s
expect(result).to eq nil
end
end
end
end
end
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