Joi-with-Jest

This is a matchers that can be used with Jest testing framework to test any Json/Javascript schema with Joi

Install

$ npm install joi-with-jest

Usage

1const matchers = require("joi-with-jest");
2expect.extend(matchers);

and to validate your JSON or Javascript schema you can do

1
2//Joi schema definition
3
4let customer = Joi.object().keys({
5    ascUser: Joi.object().keys({
6        userName: Joi.string().email().required(),
7        password: Joi.string().required(),
8        firstName: Joi.string().max(40).required(),
9        lastName: Joi.string().max(40).required(),
10        cspKey: Joi.string(),
11        cspUID: Joi.string(),
12        status: Joi.string().valid("A", "B", "IA", "NF", "S").required(),
13        orgID: Joi.string(),
14        roles: Joi.array().items(
15            Joi.object().keys({
16                roleID: Joi.string().required(),
17                status: Joi.string().valid("A", "B", "IA", "NF", "S").required()
18            })
19        ),
20        audit: Joi.object().keys({
21            createdOn: Joi.date().iso(),
22            createdBy: Joi.string(),
23            updatedBy: Joi.string(),
24            updatedOn: Joi.date().iso()
25        })
26
27    }).required()
28});
29
30let options = { abortEarly: false, stripUnknown: false }
31expect(object).toMatchSchema(customer, options);
32

And if any test fails, it will throw errors like

1[{"message":"\"firstName\" is required","path":["ascUser","firstName"],"validationFailed":"required"}]