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(); })