dockerizedautomated tests: profit and principles · 2019. 4. 26. · agenda what docker is...

Dockerized automated tests: profit and principles

IT Weekend Dnipro: Automation Testing and Business Analysis

Dmytro Serdiuk

Who am I

Dmytro Serdiuk

Test automation architect at SOFTSERVE

2

Agenda

What Docker isDocker and test automationWhy dockerized automated testsPrinciples of dockerization

3

Concept

4

Containers benefits

LIGHTWEIGHT

STANDARD

SECURE

5

6

Test infrastructure: Selenium Grid

7

8

Docker + Selenium Grid

https://github.com

/SeleniumHQ/docker-selenium

/aerokube/selenoid9

Idea

10

Motivation

Environment issues

Parallel execution

Collaboration speed

11

Steps

Make tests configurable

Create Docker image

Document usage

12

Principal Dockerfile

FROMmaven:3.5-jdk-8-slim

13

Dockerfile: Base image selection

Minimal sizeAlways specify tag

maven:3.5-jdk-8-slimUse your own base image

Pre-installed toolsUnder your control

14

Principal Dockerfile

FROM maven:3.5-jdk-8-slimCOPY . .RUN mvn dependency:go-offline

15

Dockerfile: Tests installation

Minimize image sizeOnly needed toolsNo cache

Add metadata LABEL, VOLUME

Keep your files separatelyWORKDIR

16

Principal Dockerfile

FROM maven:3.5-jdk-8-slimCOPY . .RUN mvn dependency:go-offlineENTRYPOINT ["mvn --offline"]CMD ["test"]

17

Dockerfile: Run configuration

Make ready-to-run imagesENTRYPOINT ["mvn --offline"]

Define default run optionsCMD ["mvn –offline test -Dapi=calc-service"]

Use wrapper scriptENTRYPOINT ["./run.sh"]

18

Tests configuration

Files sharing with VOLUMEs

Image’s argument

Environment variables

19

Multi-container apps

Play with custom networks

Use docker-compose or other

orchestrator

20

21

Demo project

https://github.com/extsoft/jcat

22

Summary

SUT

Test infrastructure

Tests execution

23

Q & A

24

Contacts

http://extsoft.pro@DmytroSerdiukdserdiuk@softserveinc.com

25