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bedrock-test

v6.1.0

Published

Bedrock test

Downloads

33

Readme

bedrock-test

Overview

Bedrock back-end testing uses Mocha while front-end testing uses Protractor. To run multiple module tests, the protractor test suite object and the mocha test array can both be initialized and populated from this module; however, it’s also possible to run tests on a single module at a time.

Requirements

  • npm v3+

Protractor Front-End Testing

For more information on front-end testing, see https://github.com/digitalbazaar/bedrock-protractor.

Mocha Back-End Testing

The tests for back-end modules are designed to run independent of a full bedrock development environment. To run tests on a module, only the module needs to be cloned. The test environment can be built, and tests run, locally.

For more information on Mocha, see https://mochajs.org/#getting-started

Setup

This section describes the test environment. A later section will describe the actual tests.

Quick Setup Examples

To run tests for a single module, clone the module:

npm install bedrock-module

Populate required Bedrock modules in the test directory at bedrock-modules/test:

npm install

Run the tests from the same location:

npm test

Doing an npm install inside the module test directory populates Bedrock modules in the test directory based on the dependencies contained in bedrock-module/test/package.json.

How it Works

  • The test environment for a module is set up and executed within that module's test directory. A test script is set up in the package.json file to run the test suite when npm test is entered on the command line.

    "scripts": {
      "test": "node --preserve-symlinks test.js test"
    }

    This will run the test file test.js.

  • test.js will load the required modules, including bedrock-test and start Bedrock.

  • index.js in the module's ./lib direcotry will be run and any required modules are loaded from the test/node_modules directory.

  • The module's configuration file, config.js, is loaded first, but it's important to note that the last config file will override previous configurations. For example, in our case config.test.js will override config.js since the test configuration file is loaded later.

  • bedrock.events.on(bedrock.test.configure) is a listener that will execute on bedrock.test.configure, which is set in the bedrock-test module. This will then load test.config.js.

  • test.config.js sets up the database and creates permission roles. It also loads up all the test files contained in the mocha directory through this line:

    config.mocha.tests.push(path.join(__dirname, 'mocha'));

    An array is created with all of the *.js files in that test/mocha folder, and the files are executed in order. A common practice is to number these files in the order you wish the tests to execute.

  • Helper functions, mock data, and other support code can be included in other files in the test/mocha directory. For example, mock.data.js and helpers.js are common extra files in the bedrock module tests.

Tests

This section describes an actual test. Tests use mocha and chai and are found in the test/mocha directory. Some highlights to point out about the tests follow.

Quick Test Example

The following is an example of a typical test. This one tests a regular user adding a public key through the bedrock-key addPublicKey API.

The test does some data preperation at the very beginning, then clears some of the test data between each test. The general flow for many tests is similar to this one:

  1. Set up data and identites as needed to perform the test.
  2. Execute the test.
  3. Compare actual results to expected results.

Most of the work, and examples below, focuses on step 1: The set-up of the data and identites.

Inside the test, set-up preloads data from mock.data.js into the database using a helper function:

var mockData = require('./mock.data');
before(done => {
  helpers.prepareDatabase(mockData, done);
});

As is often the case, this data is set up to represent different identities with a particular set of system resource roles (permissions). Within mock.data.js, a helper function is used to create the identity:

var mock = {};
module.exports = mock;

var identities = mock.identities = {};
var userName;

userName = 'regularUser';
identities[userName] = {};
identities[userName].identity = helpers.createIdentity(userName);

System resource roles are added as part of the identity set-up. The pair is usually the permission (sysRole) and the resource or resources that the permissions apply to (generateResource):

identities[userName].identity.sysResourceRole.push({
  sysRole: 'bedrock-key.test',
  generateResource: 'id'
});

In this case, 'bedrock-key.test' is a system role that is defined in test.config.js to allow the user to access, remove, create, or edit a public key for each resource:

roles['bedrock-key.test'] = {
  id: 'bedrock-key.test',
  label: 'Key Test Role',
  comment: 'Role for Test User',
  sysPermission: [
    permissions.PUBLIC_KEY_REMOVE.id,
    permissions.PUBLIC_KEY_ACCESS.id,
    permissions.PUBLIC_KEY_CREATE.id,
    permissions.PUBLIC_KEY_EDIT.id
  ]
};

Before each test, or inbetween tests, test-specific data is cleared from the database within the test:

beforeEach(function(done) {
  helpers.removeCollection('publicKey', done);
});

Identites can be set up for a group of tests to avoid repetition. In this case, an identity is set up for a regular user with the associated resource roles. Several tests will be run using this identity:

describe('authenticated as regularUser', () => {
  var mockIdentity = mockData.identities.regularUser;
  var actor;
  before(done => {
    brIdentity.get(null, mockIdentity.identity.id, (err, result) => {
      actor = result;
      done(err);
    });
  });
});

Finally, a test is executed and data checked:

it('should add a valid public key with no private key', done => {
  var samplePublicKey = {};

  samplePublicKey.publicKeyPem = mockData.goodKeyPair.publicKeyPem;
  samplePublicKey.owner = actor.id;

  async.auto({
    insert: function(callback) {
      brKey.addPublicKey(actor, samplePublicKey, callback);
    },
    test: ['insert', function(callback, results) {
      database.collections.publicKey.find({
        'publicKey.owner': actor.id
      }).toArray(function(err, result) {
        should.not.exist(err);
        should.exist(result);
        result[0].publicKey.publicKeyPem.should.equal(
          samplePublicKey.publicKeyPem);
        callback();
      });
    }],
  }, done);
});

This test uses the regular user identity to test the API. The brKey.addPublicKey function call will execute the test. The comparison of expected and actual results is done using the should mocha directives. If successful, the test will continue; If there is a failure, the testing will stop.

License

Bedrock and all Bedrock modules are:

Copyright (c) 2011-2017 Digital Bazaar, Inc.
All Rights Reserved

You can use Bedrock for non-commercial purposes such as self-study, research, personal projects, or for evaluation purposes. See the LICENSE file for details about the included non-commercial license information.