request_validation_test.js

var assert = require('assert')

var validator = require('../index')
var email = validator.email
var presence = validator.presence

function fakeRequest() {
  return {
    params: {},
    query: {},
    body: {}
  }
}

// Used to setup some generic tests
//
// title -> Body, Request or Query validations
// validateFunction -> Function used to validate params: validateBody, validateQuery, validateParams
// property -> which property of the request to use for setting up the params.
//  request.body, request.query, request.params
//
function validation(title, validateFunction, property) {
  describe(title, function() {
    var req

    before(function() {
      req = fakeRequest()
    })

    it('runs validations on the request ' + title, function() {
      req[property] = {
        login: 'nettofarah',
        password: 'secret',
        email: 'nettofarah@gmail.com'
      }

      var validation = validateFunction(req, [
        presence('login'),
        presence('password'),
        email('email')
      ])

      assert(validation.valid)
      assert(validation.errors.length == 0)
    })

    describe('failed validations', function() {
      var validation

      before(function() {
        req[property] = {
          login: 'nettofarah',
          email: 'nettofarahatgmail.com'
        }

        validation = validateFunction(req, [
          presence('login'),
          presence('password'),
          email('email')
        ])
      })

      it('only passes if all validations pass', function() {
        assert(validation.valid == false)
      })

      it('returns all failed validations', function() {
        assert(validation.errors.length == 2)
        assert(validation.errors[0].field == 'password')
        assert(validation.errors[1].field == 'email')
      })

      it('returns all the error messages', function() {
        assert.deepEqual(validation.messages, [
          '"password" required',
          '"email" should look like an email address'
        ])
      })
    })
  })
}

validation('Body Validation', validator.validateBody, 'body')
validation('Params Validation', validator.validateParams, 'params')
validation('Query String Validation', validator.validateQuery, 'query')
validation('Headers Validation', validator.validateHeaders, 'headers')

describe('Validate all', function() {
  it('validates all properties across body, query and params', function() {
    var req = fakeRequest()

    req.body = {
      password: 'secret'
    }

    req.query = {
      email: 'nettofarah@gmail.com'
    }

    req.params = {
      login: 'nettofarah'
    }

    var validation = validator.validateAll(req, [
      presence('password'),
      email('email'),
      presence('login')
    ])

    assert(validation.valid)
  })
})