discourse-translator/spec/services/yandex_spec.rb

# frozen_string_literal: true

require "rails_helper"

RSpec.describe DiscourseTranslator::Yandex do
  let(:mock_response) { Struct.new(:status, :body) }

  describe ".access_token" do
    describe "when set" do
      api_key = "12345"
      before { SiteSetting.translator_yandex_api_key = api_key }

      it "should return back translator_yandex_api_key" do
        expect(described_class.access_token).to eq(api_key)
      end
    end
  end

  describe ".detect" do
    let(:post) { Fabricate(:post) }

    it "should store the detected language in a custom field" do
      detected_lang = "en"
      described_class.expects(:access_token).returns("12345")
      Excon
        .expects(:post)
        .returns(mock_response.new(200, %{ { "code": 200, "lang": "#{detected_lang}" } }))
        .once
      expect(described_class.detect(post)).to eq(detected_lang)

      2.times do
        expect(post.custom_fields[::DiscourseTranslator::DETECTED_LANG_CUSTOM_FIELD]).to eq(
          detected_lang,
        )
      end
    end
  end

  describe ".translate" do
    let(:post) { Fabricate(:post) }

    it "raises an error on failure" do
      described_class.expects(:access_token).returns("12345")
      described_class.expects(:detect).returns("en")

      Excon.expects(:post).returns(
        mock_response.new(
          400,
          {
            error: "something went wrong",
            error_description: "you passed in a wrong param",
          }.to_json,
        ),
      )

      expect { described_class.translate(post) }.to raise_error DiscourseTranslator::TranslatorError
    end
  end
end