axe-core/test/core/utils/find-by.js

Accessibility engine for automated Web UI testing

describe('axe.utils.findBy', function () {
	'use strict';

	it('should find the first matching object', function () {
		var array = [{
			id: 'monkeys',
			foo: 'bar'
		}, {
			id: 'bananas'
		}, {
			id: 'monkeys',
			bar: 'baz'
		}];

		assert.equal(axe.utils.findBy(array, 'id', 'monkeys'), array[0]);
	});

	it('should return undefined with no match', function () {
		var array = [{
			id: 'monkeys',
			foo: 'bar'
		}, {
			id: 'bananas'
		}, {
			id: 'monkeys',
			bar: 'baz'
		}];

		assert.isUndefined(axe.utils.findBy(array, 'id', 'macaque'));

	});

	it('should not throw if passed falsey first parameter', function () {
		assert.isUndefined(axe.utils.findBy(null, 'id', 'macaque'));
	});

});