Node.js/Expressで楽々Webアプリ開発（Vol.57掲載）
著者：しょっさん
プログラミング言語「JavaScript」の実行環境「Node.js」と「Express」フレームワークを使って、基本となるWebアプリの開発手法を習得しましょう。第3回は「テストファースト」（最初にテストプログラムを作る）を意識したテストコードの作成方法を解説します。
シェルスクリプトマガジン Vol.57は以下のリンク先でご購入できます。
|
1 2 3 4 5 6 7 8 |
describe('=validate', () => { // 検証された結果 it('should get the result is true', () => { const result = book.validate(req.body); expect(result).toBe(true); expect(req.body.image_url).toBe('http://example.com/'); }); }); |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
beforeEach(() => { req = { body: { book_title: 'title', author: ' しょっさん', publisher: 'USP 研究所', image_uml: '' }, params: { id: 1 } }; res = { redirect: function () { }, render: function () { } }; }); |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
create: function (req, res) { module.exports.register_book(req.body) .then(result => { res.redirect(/books/{result.id}); }).catch(errors => { res.render('error', { message: ' エラーが発生しました.', error: { status: ' 本を登録できませんでした.', stack: errors } }); }); }, |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
describe('=register_book', () => { it('should get the result is book information', (done) => { book.register_book(req.body).then(result => { expect(result.book_title).toBe('title'); expect(result.id).toBeGreaterThanOrEqual(2); expect(result.image_url).toBe('http://example.com/'); done(); }).catch(done.fail); }); it('should catch an error', (done) => { req.body.book_title = ''; book.register_book(req.body).then(done.fail) .catch(result => { expect(result).toEqual([' 本のタイトルが入っていません']); done(); }); }); }); |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 |
'use strict'; module.exports = { up: (queryInterface, Sequelize) => { /* Add altering commands here. Return a promise to correctly handle asynchronicity. Example: return queryInterface.bulkInsert('Person', [{ name: 'John Doe', isBetaMember: false }], {}); */ }, down: (queryInterface, Sequelize) => { /* Add reverting commands here. Return a promise to correctly handle asynchronicity. Example: return queryInterface.bulkDelete('Person', null, {}); */ } }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |
'use strict'; module.exports = { up: (queryInterface, Sequelize) => { const models = require('../models'); return models.Library.bulkCreate([ { id: 1, book_title: ' シェルスクリプトマガジン vol.54', author: ' しょっさん', publisher: 'USP 研究所', image_uml: 'https://uec.usp-lab.com/INFO/IMG/SHELLSCRIPTMAG_VOL54.JPG' }, { id: 2, book_title: ' シェルスクリプトマガジン vol.55', author: ' しょっさん', publisher: 'USP 研究所', image_uml: 'https://uec.usp-lab.com/INFO/IMG/SHELLSCRIPTMAG_VOL55.JPG' } ]); }, down: (queryInterface, Sequelize) => { return queryInterface.bulkDelete('libraries', null, {}); } }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
// routing テスト const request = require('supertest'); const app = require('../app'); // GET の場合 describe('GET /books/', () => { it('respond with http', (done) => { request(app) .get('/books/') .set('Accept', 'text/html') .expect(200, done); }); }); //POST の場合 describe('POST /books/create', () => { it('respond with http', (done) => { request(app) .post('/books/create') .send({book_title: 'test'}) .set('Accept', 'text/html') .expect(302, done); }); }); |
|
1 2 3 4 |
"scripts": { "start": "node ./bin/www", "test": "jasmine" }, |
|
1 2 3 4 5 6 7 8 9 |
"scripts": { "start": "node ./bin/www", "migrate": "sequelize db:migrate", "seed": "sequelize db:seed:all", "build": "npm run migrate && npm run seed", "clean": "sequelize db:seed:undo:all", "retest": "npm run clean && npm run build && npm test", "test": "jasmine" }, |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 |
language: node_js node_js: - "10.11" - "8.12" before_install: before_script: - "npm install" - "npm run build" script: - "npm test" notifications: on_success: always on_failure: always |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
version: 2 jobs: build: docker: - image: circleci/node:10.11 working_directory: ~/repo steps: - checkout - restore_cache: keys: - v1-dependencies-{{ checksum "package.json" }} - v1-dependencies- - run: npm install - run: npm run build - save_cache: paths: - node_modules key: v1-dependencies-{{ checksum "package.json" }} - run: npm test |