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Viewing file:     proto.js (1.75 KB)      -rwxrwxrwx

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

test('proto pollution', function (t) {
    var argv = parse(['--__proto__.x','123']);
    t.equal({}.x, undefined);
    t.equal(argv.__proto__.x, undefined);
    t.equal(argv.x, undefined);
    t.end();
});

test('proto pollution (array)', function (t) {
    var argv = parse(['--x','4','--x','5','--x.__proto__.z','789']);
    t.equal({}.z, undefined);
    t.deepEqual(argv.x, [4,5]);
    t.equal(argv.x.z, undefined);
    t.equal(argv.x.__proto__.z, undefined);
    t.end();
});

test('proto pollution (number)', function (t) {
    var argv = parse(['--x','5','--x.__proto__.z','100']);
    t.equal({}.z, undefined);
    t.equal((4).z, undefined);
    t.equal(argv.x, 5);
    t.equal(argv.x.z, undefined);
    t.end();
});

test('proto pollution (string)', function (t) {
    var argv = parse(['--x','abc','--x.__proto__.z','def']);
    t.equal({}.z, undefined);
    t.equal('...'.z, undefined);
    t.equal(argv.x, 'abc');
    t.equal(argv.x.z, undefined);
    t.end();
});

test('proto pollution (constructor)', function (t) {
    var argv = parse(['--constructor.prototype.y','123']);
    t.equal({}.y, undefined);
    t.equal(argv.y, undefined);
    t.end();
});

test('proto pollution (constructor function)', function (t) {
    var argv = parse(['--_.concat.constructor.prototype.y', '123']);
    function fnToBeTested() {}
    t.equal(fnToBeTested.y, undefined);
    t.equal(argv.y, undefined);
    t.end();
});

// powered by snyk - https://github.com/backstage/backstage/issues/10343
test('proto pollution (constructor function) snyk', function (t) {
    var argv = parse('--_.constructor.constructor.prototype.foo bar'.split(' '));
    t.equal((function(){}).foo, undefined);
    t.equal(argv.y, undefined);
    t.end();
})