// test/test.js
var assert = require("assert");

describe('Array', function(){
    describe('#indexOf()', function(){
        it('should return -1 when the value is not present', function(){
            assert.equal(-1, [1,2,3].indexOf(0));
            assert.equal(3, [1,2,3].indexOf(5));
        });
    });
});

// test/test.js
var assert = require("assert");

describe('Array', function(){
    describe('#indexOf()', function(){
        it('should return -1 when the value is not present', function(){
            assert.equal(-1, [1,2,3].indexOf(0));
            assert.equal(-1, [1,2,3].indexOf(5));
        });
    });
});

Fix error