Dockerize your tests - Speaker Deck

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Dockerize your tests

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What are we covering today ● Why Docker? ● How is docker different from normal VMs? ● Docker objects ● Few Docker commands ● Demo on using Selenium in a docker container to run the tests 2

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What is docker all about...?

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VMs Vs Containers 5 Source: https://www.docker.com/what-docker

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Why do we dockerize tests ? Portability across machines Parallelise tests Optimal resource sharing. Cross Browser testing with available resources Component reuse Version control made easy Quickly create environments Consistent Systems 6

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Component Reuse UBUNTU Selenium JAVA Base Image 1GB 10GB 10GB 10GB 10GB Guest OS, Java, Selenium, Browser

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Version Control made easy

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Quickly create environments

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Consistent Systems

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Docker Terminologies https://docs.docker.com/engine/getstarted/step_one/ s.docke Docker Engine Images Containers /step_on e Dockerfile e DockerHub Docker compose 1 1

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Docker Images - An image is a file system and parameters to use at runtime - A file that's essentially a snapshot of a container 1 2

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Docker Containers - a running instance of an image 1 3 Container Image

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Container 1 Container 2 Container n Image You can have many running containers of the same image.

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Few Docker commands 1 5 docker search ubuntu docker pull ubuntu docker images docker ps docker ps -a docker logs docker rmi

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Dockerfile A recipe which describes the files, environment, and commands that make up an image 1 6 Container RUN BUILD Docker File ……… …… …. Image

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Let’s run a test in a Docker container!

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What do we need? 1 8

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Docker File example 1 9

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Selenium Docker 2 0

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Run the Docker Selenium image “docker run -d -p 4444:4444 selenium/standalone-chrome” Pull the image from Docker registry and run the container Use the available image to run the container s.docker.com/engine/getstarted/stp_one 2 1 Is the image available in local?

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Test Scenario - Instantiate a remote webdriver - Open a google search page - Check page title - Search for “Hello World” - Take and save screenshot 2 2

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Advanced - Docker with Selenium Grid https://docs.docker.com/engine/getstarted/step_one/ s.docker.com/engine/getstarted/stp_one 2 3

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Docker Adoption https://docs.docker.com/engine/getstarted/step_one/ s.docker.com/engine/getstarted/stp_one 2 4

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Not just Docker! https://docs.docker.com/engine/getstarted/step_one/ s.docker.com/engine/getstarted/stp_one 2 5

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Thanks for joining us! Agalya & Abinaya 2 6