@guj/rif-js/src/test/sliceIf.js

Simplify filter,map and such when their use should be conditionnal

const test = require("ava");
const Rif = require("../main/rif");

test('Rifs should slice when allowed to', t => {
    const rSut = Rif
        .of([1,2,3])
        .sliceIf(true)(1);

    t.deepEqual(rSut, [2,3], `Since we allow the slicing, we expect the result to be sliced`);
});

test('Rifs should not slice when unallowed to', t => {
    const rSut = Rif
        .of([1,2,3])
        .sliceIf(false)(1);

    t.deepEqual(rSut, [1,2,3], `Since we forbid the slicing, we expect the result to be left as is`);
});