I’m trying to test a saga using redux-saga-test-plan, but faced a problem of passing an anonymous function as an argument in the “call” effect.

I know that a possible solution could be to name this () => {} function and to import it to my spec.js file, but would it be a good practice of calling it like “emptyFunction”? Is there some way to just mock it instead of naming and exporting?

Here is my saga:

`export function* sagaToTest() {
    yield call(foo, () => {});
}`

And a test in spec.js file

`it('sagaToTest', () => {
    testSaga(Saga.sagaToTest)
      .next()
      .call(foo, () => {})
      .next()
      .isDone();
});`

The error I get:

`SagaTestError:
Assertion 1 failed: call effects do not match

Expected

{ ‘@@redux-saga/IO’: true,
combinator: false,
type: ‘CALL’,
payload: { context: null, fn: [Function: foo], args: [ [Function] ] } }

Actual

{ ‘@@redux-saga/IO’: true,
combinator: false,
type: ‘CALL’,
payload: { context: null, fn: [Function: foo], args: [ [Function] ] } }`