ts-prime/dist/es/findIndex.test.js

A utility library for JavaScript and Typescript.

import { findIndex } from './findIndex';
import { pipe } from './pipe';
import { createCounter } from './_counter';
describe('data first', function () {
    test('findIndex', function () {
        expect(findIndex([10, 20, 30], function (x) { return x === 20; })).toBe(1);
    });
    test('findIndex.indexed', function () {
        expect(findIndex([10, 20, 30], function (x) { return x === 20; })).toBe(1);
    });
    test('findIndex -1', function () {
        expect(findIndex([2, 3, 4], function (x) { return x === 20; })).toBe(-1);
    });
});
describe('data last', function () {
    test('findIndex', function () {
        var counter = createCounter();
        var actual = pipe([10, 20, 30], counter.fn(), findIndex(function (x) { return x === 20; }));
        expect(counter.count).toHaveBeenCalledTimes(2);
        expect(actual).toEqual(1);
    });
    test('findIndex.indexed', function () {
        var counter = createCounter();
        var actual = pipe([10, 20, 30], counter.fn(), findIndex.indexed(function (x) { return x === 20; }));
        expect(counter.count).toHaveBeenCalledTimes(2);
        expect(actual).toEqual(1);
    });
});