> router.put(   '/:id',
>
>   insertAuthorIdToBody,   validateSchema(calculatorSchema),
> validateBodyIdMatchesParam('id'),    async (req, res, next) => {
>     try{
>       await addTags(req.body.tags);
>       await addCalculator(req.body);
>     }catch(err){next(err)}
>     res.status(201).json(req.body)   } );
>
> describe('PUT /:id', () => {
>     it('should return calculator on success request', async () => {
>
>       addCalculator.resolves(validCalculator);
>       addTags.resolves(validCalculator.tags);
>
>       await request(app)
>       .put('/new-calculator-uuid')
>       .send(validCalculator)
>       .set('Accept', 'application/json')
>       .expect(201);
>
>       await request(app)
>       .put('/new-calculator-uuid')
>       .send(validCalculator)
>       .set('Accept', 'application/json')
>       .expect(201, { ...validCalculator, author: user.id });
>     });
>     it('should return status 500 on server error', async () => {
>       addCalculator.rejects();
>
>       await request(app)
>         .put('/new-calculator-uuid')
>         .send(validCalculator)
>         .set('Accept', 'application/json')
>         .expect(500);
>     }); });