import assert from 'node:assert';
import { oldDash, coverage, document, isModularize, realm, filePath } from './utils';
import noConflict from '../src/noConflict';

describe('noConflict', () => {
    it('should return the `lodash` function', () => {
        assert.strictEqual(noConflict(), oldDash);
        assert.notStrictEqual(root._, oldDash);
        root._ = oldDash;
    });

    it('should restore `_` only if `lodash` is the current `_` value', () => {
        const object = (root._ = {});
        assert.strictEqual(noConflict(), oldDash);
        assert.strictEqual(root._, object);
        root._ = oldDash;
    });

    it('should work with a `root` of `this`', () => {
        if (!coverage && !document && !isModularize && realm.object) {
            const fs = require('fs'),
                vm = require('vm'),
                expected = {},
                context = vm.createContext({ _: expected, console: console }),
                source = fs.readFileSync(filePath, 'utf8');

            vm.runInContext(`${source}\nthis.lodash = this._.noConflict()`, context);

            assert.strictEqual(context._, expected);
            assert.ok(context.lodash);
        }
    });
});