const { TesseractWorker, utils: { loadLang } } = Tesseract; const IMAGE_PATH = 'http://localhost:3000/tests/assets/images'; const loadLangOptions = { langPath: 'http://localhost:3000/tests/assets/traineddata', cachePath: './tests/assets/traineddata', }; const getWorker = options => ( new TesseractWorker({ cacheMethod: 'readOnly', ...loadLangOptions, ...options, }) ); before(function cb(done) { this.timeout(30000); const load = () => ( loadLang({ lang: 'osd', cacheMethod: 'write', ...loadLangOptions, }).then(() => { done(); }) ); if (typeof startServer !== 'undefined') { startServer(load); } else { load(); } }); after((done) => { if (typeof stopServer !== 'undefined') { stopServer(done); } else { done(); } }); describe('detect()', () => { it('should detect OSD', (done) => { [ { name: 'cosmic.png', ans: { id: 12, degree: 0 } }, ].forEach(({ name, ans: { id, degree } }) => { const worker = getWorker(); worker .detect(`${IMAGE_PATH}/${name}`) .then(({ tesseract_script_id, orientation_degrees }) => { expect(tesseract_script_id).to.be(id); expect(orientation_degrees).to.be(degree); done(); }); }); }).timeout(10000); });