function dataTest(filePath, expectedJSON, expectedJSONPath) {
  var app = request(targetUrl);

  describe('Comparando ' + path.basename(filePath) + ' con ' + path.basename(expectedJSONPath), function() {

    it('Debe coincidir con la respuesta esperada.', function(done) {


      this.timeout(60000);

      var aux = app
        .post(targetConfig.PATH)
        .set('accept', 'application/json')
        .set('content-type', 'application/json')
        .set('host', targetConfig.HOST)
        .send({
          "requestId": "12",
          "invoiceFileName": path.basename(filePath).replace(//+/g, ''),
          "invoiceFileContents": fs.readFileSync(filePath).toString('base64')
        });

      var aws_headers = signRequest(aux);
      aux.set('authorization', aws_headers.headers.Authorization).set('x-amz-date', aws_headers.headers['X-Amz-Date'])
        .expect(expectedJSON)
        .end(function(err, res) {

          if (err) {
            if(expectedJSON === null) {
              try {
                fs.writeFileSync(expectedJSONPath, JSON.stringify(res.body, null, 2));
                console.log('nnAVISO -> GUARDADO NUEVO JSON SIN TESTEAR EN ' + expectedJSONPath + 'n');
                return done();
              }
              catch(err) {
                return done(err);
              }
            }
            else {
              console.error(err);
              return done(err);
            }
          }
          // Success
          done();
        });
    });
  });
}