Files
lodash/test/intersectionBy.spec.js
2023-09-16 22:59:56 -07:00

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JavaScript

import { slice } from './utils';
import intersectionBy from '../src/intersectionBy';
describe('intersectionBy', () => {
it('should accept an `iteratee`', () => {
let actual = intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
expect(actual).toEqual([2.1]);
actual = intersectionBy([{ x: 1 }], [{ x: 2 }, { x: 1 }], 'x');
expect(actual).toEqual([{ x: 1 }]);
});
it('should provide correct `iteratee` arguments', () => {
let args;
intersectionBy([2.1, 1.2], [2.3, 3.4], function () {
args || (args = slice.call(arguments));
});
expect(args).toEqual([2.3]);
});
});