101 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			101 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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require 'rails_helper'
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RSpec.describe TranslationService::DeepL do
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  subject(:service) { described_class.new(plan, 'my-api-key') }
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  let(:plan) { 'advanced' }
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  before do
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    stub_request(:get, 'https://api.deepl.com/v2/languages?type=source').to_return(
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      body: '[{"language":"EN","name":"English"},{"language":"UK","name":"Ukrainian"}]'
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    )
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    stub_request(:get, 'https://api.deepl.com/v2/languages?type=target').to_return(
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      body: '[{"language":"EN-GB","name":"English (British)"},{"language":"ZH","name":"Chinese"}]'
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    )
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  end
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  describe '#translate' do
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    it 'returns translation with specified source language' do
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      stub_request(:post, 'https://api.deepl.com/v2/translate')
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        .with(body: 'text=Hasta+la+vista&source_lang=ES&target_lang=en&tag_handling=html')
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        .to_return(body: '{"translations":[{"detected_source_language":"ES","text":"See you soon"}]}')
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      translations = service.translate(['Hasta la vista'], 'es', 'en')
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      expect(translations.size).to eq 1
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      translation = translations.first
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      expect(translation.detected_source_language).to eq 'es'
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      expect(translation.provider).to eq 'DeepL.com'
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      expect(translation.text).to eq 'See you soon'
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    end
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    it 'returns translation with auto-detected source language' do
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      stub_request(:post, 'https://api.deepl.com/v2/translate')
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        .with(body: 'text=Guten+Tag&source_lang&target_lang=en&tag_handling=html')
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        .to_return(body: '{"translations":[{"detected_source_language":"DE","text":"Good morning"}]}')
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      translations = service.translate(['Guten Tag'], nil, 'en')
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      expect(translations.size).to eq 1
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      translation = translations.first
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      expect(translation.detected_source_language).to eq 'de'
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      expect(translation.provider).to eq 'DeepL.com'
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      expect(translation.text).to eq 'Good morning'
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    end
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    it 'returns translation of multiple texts' do
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      stub_request(:post, 'https://api.deepl.com/v2/translate')
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        .with(body: 'text=Guten+Morgen&text=Gute+Nacht&source_lang=DE&target_lang=en&tag_handling=html')
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        .to_return(body: '{"translations":[{"detected_source_language":"DE","text":"Good morning"},{"detected_source_language":"DE","text":"Good night"}]}')
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      translations = service.translate(['Guten Morgen', 'Gute Nacht'], 'de', 'en')
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      expect(translations.size).to eq 2
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      expect(translations.first.text).to eq 'Good morning'
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      expect(translations.last.text).to eq 'Good night'
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    end
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  end
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  describe '#languages' do
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    it 'returns source languages' do
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      expect(service.languages.keys).to eq [nil, 'en', 'uk']
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    end
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    it 'returns target languages for each source language' do
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      expect(service.languages['en']).to eq %w(pt en-GB zh)
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      expect(service.languages['uk']).to eq %w(en pt en-GB zh)
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    end
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    it 'returns target languages for auto-detection' do
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      expect(service.languages[nil]).to eq %w(en pt en-GB zh)
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    end
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  end
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  describe '#request' do
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    before do
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      stub_request(:any, //)
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      # rubocop:disable Lint/EmptyBlock
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      service.send(:request, :get, '/v2/languages') { |res| }
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      # rubocop:enable Lint/EmptyBlock
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    end
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    it 'uses paid plan base URL' do
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      expect(a_request(:get, 'https://api.deepl.com/v2/languages')).to have_been_made.once
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    end
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    context 'with free plan' do
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      let(:plan) { 'free' }
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      it 'uses free plan base URL' do
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        expect(a_request(:get, 'https://api-free.deepl.com/v2/languages')).to have_been_made.once
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      end
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    end
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    it 'sends API key' do
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      expect(a_request(:get, 'https://api.deepl.com/v2/languages').with(headers: { Authorization: 'DeepL-Auth-Key my-api-key' })).to have_been_made.once
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    end
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  end
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end
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