Повний тестздець spa + rest

Full testzdec

Andrii Shumada

Lazy Sr. Software Developer at

eagleeyeeagleeye_seagleeyes91@gmail.com

Why we should write tests

Why this project cannot start on my computer?

Victor VyshnevskyTrainee at JsSolutions

- Typo/error in your code- Wrong version of global

module (mongo, node)- Not compatible OS/browser- Floating version of package(

2.x, ~3.5.2, >=1.5.0)- Floating version of

subpackage- Npm package was deleted

from npm- 3rd party service changed

their API or died

How the common test looks like?

sync setup

async setup

Actual test

Unit tests run

Unit tests

require function call

Compare actual result with expected

gocardlessFactory.js

gocardlessFactory.spec.js

Integration tests

JSON REST API Integration tests

<- send JSON-> get JSON check json

2 unit tests, 0 integration

End-to-end tests (client tests)

JSON REST API

Client test

Open pageInteracts with pageChecks DOM

<- send JSON-> get JSON

Client (browser) ⇔ webdriver protocol

http://webdriver.io/

How do you feel when you see this

What do you use to lint your code?

How do you run this lint?

Package.json

{ “scripts”: { “test”: “mocha test && jshint lib/** && csslint client/css/**” }}

Linting could also be a test!

https://www.npmjs.com/package/mocha-jshint

https://www.npmjs.com/package/mocha-csslint

https://www.npmjs.com/package/mocha-eslint

https://www.npmjs.com/package/mocha-jscs

eslint.spec.js

Who is guilty?

- Tests should run before merging branch to master

- Tests should work on Continous Integration server

(Travis, Jenkins, TeamCity, CircleCI)

Why this project cannot start on my computer?

- Typo/error in your code- Wrong version of global

module (mongo, node)- Not compatible OS/browser- Floating version of package(

2.x, ~3.5.2, >=1.5.0)- Floating version of

subpackage- Npm package was deleted

from npm- 3rd party service changed

their API/died)

How to check wrong version of node?

+ nodeversioncheck

$ node app.jsRunning correct node V5.8.0. (according to package.json we need V5.8.0)

or$ node app.jsRunning WRONG node V5.8.0. (according to package.json we need V7.8.0)

.travis.yml

Node 0.10Mongo 2.6

Node 0.12Mongo 2.6

Node iojsMongo 2.6

Node 0.10Mongo 2.8

Node 0.12Mongo 2.8

Node iojsMongo 2.8

Node 0.10Mongo 3.0

Node 0.12Mongo 3.0

Node iojsMongo 3.0

Why this project cannot start on my computer?

- Typo/error in your code- Wrong version of global

module (mongo, node)- Not compatible OS/browser- Floating version of package(

2.x, ~3.5.2, >=1.5.0)- Floating version of

subpackage- Npm package was deleted

from npm- 3rd party service changed

their API/died)

Nightly test!Schedule all your tests on master to run during night!

rm -rf node modulesnpm inpm test

Your team will use tests when they will be:

- Stable (minimize radom things)- Valuable (check only what make sense) - They should work on your machine, machines of your colleges and

on CI server (setup contionius integration)- Fast enough to use it (slow tests should go to nightly-test)- Easy to write ( declaritive style of setup )- Easy to maintain

Examples of bad tests

Example of bad test (2)

https://mochajs.org/

http://chaijs.com/

http://webdriver.io

https://www.npmjs.com/package/selenium-standalone

http://eagleeye.github.io

eagleeyeeagleeye_seagleeyes91@gmail.com

Useful links