Test migration to jest by hand

Apparently using regular expressions is way easier.
This commit is contained in:
Angelos Chalaris
2018-06-18 15:15:56 +03:00
parent 5df7098fac
commit a78f5db260
894 changed files with 5917 additions and 3607 deletions

View File

@ -0,0 +1,6 @@
const symmetricDifferenceBy = (a, b, fn) => {
const sA = new Set(a.map(v => fn(v))),
sB = new Set(b.map(v => fn(v)));
return [...a.filter(x => !sB.has(fn(x))), ...b.filter(x => !sA.has(fn(x)))];
};
module.exports = symmetricDifferenceBy;

View File

@ -0,0 +1,10 @@
const expect = require('expect');
const symmetricDifferenceBy = require('./symmetricDifferenceBy.js');
test('symmetricDifferenceBy is a Function', () => {
expect(symmetricDifferenceBy).toBeInstanceOf(Function);
});
t.deepEqual(symmetricDifferenceBy([2.1, 1.2], [2.3, 3.4], Math.floor), [ 1.2, 3.4 ], 'Returns the symmetric difference between two arrays, after applying the provided function to each array element of both');