Using Fluture with Jest

[kee-oth]

Hi!

I'm just getting into using Fluture and I was wondering if there is a recommended way to use Fluture with Jest? The issue is that Jest's "expect" function needs to be able to throw an error but Fluture consumes them.

Here's my code. Even if expect fails here Jest reports that the test passes.

  const findByRole = param1 => encaseP (param2 => (
    screen.findByRole (param1, param2)
  ))

  findByRole ('button') ({ name: 'Click me!' })
    .pipe (
      fork (handleRejection) (component => {
        expect (component).toBeInTheDocument ()
        fireEvent.click (component)
      }),
    )

Thanks!

[dicearr]

You could use the equivalence function from fluture/test/assertions.js.

import {equivalence} from 'fluture/test/assertions.js';
import {encaseP, map, resolve} from 'fluture';

const findByRole = param1 => encaseP (param2 => screen.findByRole (param1, param2));

findByRole ('button') ({name: 'Click me!'})
.pipe (map (component => expect(component).toBeInTheDocument ()))
.pipe (equivalence (resolve (/* Whatever toBeInTheDocument returns */)));

But I would probably implement an assertResolved function. Similar to the makeEquivalence function exported in fluture/test/assertions.js. So you can ignore the inner value within the Future in your tests.