Files
30-seconds-of-code/test/sortedLastIndexBy.test.js
2018-10-19 20:18:00 +03:00

10 lines
372 B
JavaScript

const expect = require('expect');
const {sortedLastIndexBy} = require('./_30s.js');
test('sortedLastIndexBy is a Function', () => {
expect(sortedLastIndexBy).toBeInstanceOf(Function);
});
test('Returns the highest index to insert the element without messing up the list order', () => {
expect(sortedLastIndexBy([{ x: 4 }, { x: 5 }], { x: 4 }, o => o.x)).toBe(1);
});