source: node_modules/traverse/test/negative.js

'use strict';

var traverse = require('../');
var test = require('tape');

test('negative update test', function (t) {
        var obj = [5, 6, -3, [7, 8, -2, 1], { f: 10, g: -13 }];
        var fixed = traverse.map(obj, function (x) {
                if (x < 0) { this.update(x + 128); }
        });

        t.same(
                fixed,
                [5, 6, 125, [7, 8, 126, 1], { f: 10, g: 115 }],
                'Negative values += 128'
        );

        t.same(
                obj,
                [5, 6, -3, [7, 8, -2, 1], { f: 10, g: -13 }],
                'Original references not modified'
        );

        t.end();
});