GitHub Actions: CI / CD Tools - Applying for Ruby / Rspec Project

Github released the beta version of "actions" last year for creating a CI/CD pipeline for the projects. This feature enables us to create a pipeline easily with the web interface of Github. I want to run the tests for one of my public project in the Github before merging branches to the master. For testsozluk aka "test dictionary", which contains terms frequently used in the software industry with the meaning and usage of them in Turkish. For the project, tests are critical because JSON files in the Github project are the data source of the application so if any corruption in the data may break the android and the ios application. The tests in the project are written in Ruby by using Rspec to assert them so I used the Github actions to verify before merging code. In this post, I want to explain how this can be done.

Github's actions are very easy to apply. You can add it just go to the Actions tab in your project and then select one of the predefined options on the list. For Ruby projects, there is one for Ruby project and one for Ruby Gems project, or you can skip these predefined workflows and create your own workflow with create yourself option. Ruby Gems project is also including deployment part so you can easily push your gem to RubyGems with the credentials easily no need to push it in your local repository. Let's look at the Ruby projects, see the image below:

When you get the predefined Ruby workflow, you can add some tasks related to your pipeline and customize it. Basically, the workflow that I want to apply is to create a virtual Linux machine and install Ruby with the version of 2.6 and install requirements with the bundle. This workflow will run on push, but you can also set it on pull_request, or on schedule by defining a schedule with Cron syntax. It also has a webhook to trigger the workflow. I selected ubuntu-latest as a virtual machine but there are also other options as following:

runs-on:

ubuntu-latest, ubuntu-18.04, or ubuntu-16.04
windows-latest or windows-2019
macos-latest or macos-10.15

For the project, tests are present in the `src/test` folder since I created the tests with RSpec it has its own structure, so I need to run tests in the test folder. Therefore running tests should have two steps; first I need to go to the test folder and then run the RSpec specs/test_spec.rb command to run them. The run command in the workflow supports multiple commands with adding pipe |. Let's look at the workflow as below:

Basically, I have created three tests to check first if the file is well-formatted JSON, second every term has term and meaning fields, and third there is duplicated term. If one of the tests fails, it doesn't allow us to merge it. See the tests:

To be able to stop merging to master when the tests are failing, you should add a rule in the Setting tab of the project and select the Branch option in the right list and add a rule that you should enable "Require status checks to pass before merging" and check the test which is a given name in your workflow yaml file. With this setup, merging action is now dependent on the result of the tests.

Let's check the failing and the passing scenarios:

Selenium Error "Element is not currently interactable and may not be manipulated"

Selenium webdriver can drive different browsers like as Firefox, Chrome or Internet Explorer. These browsers actually cover the majority of internet users, so testing these browsers possibly covers the 90% of the internet users. However, there is no guaranty that the same automation scripts can work without a failure on these three browsers. For this reason, automation code should be error-prone for the browsers you want to cover. The following error is caught when the test script run for Chrome and Internet Explorer, but surprisingly there is no error for the Firefox. Selenium gives an error like below: Traceback (most recent call last): File "D:\workspace\sample_project\sample_run.py", line 10, in <module> m.login() File "D:\workspace\ sample_project \test_case_imps.py", line 335, in login driver.find_element_by_id("id_username").clear() File "C:\Python27\lib\site-packages\selenium-2.35.0-py2.7.egg\seleni...

Change Default Timeout and Wait Time of Capybara

One of the biggest challenge for automation is handling timeout problem. Most of the time, timeout is 60 seconds but it may sometimes not enough if you have badly designed asynchronous calls or the third party ajax calls. This makes handling timeout more complex. set large enough to tolerate network related problems. For Selenium based automation frameworks, like Capybara, default Webdriver timeout is set to Net::ReadTimeout (Net::ReadTimeout) Changing ReadTimeout If you have timeout problem for Capybara, it gives an error like above. This means that the page is not fully loaded in given timeout period. Even you can see that page is loaded correctly but webdriver wait until the Ajax calls finish. class BufferedIO #:nodoc: internal use only def initialize (io) @io = io @read_timeout = 60 @continue_timeout = nil @debug_output = nil @rbuf = '' end . . . . . def rbuf_fill beg...

Create an Alias for Interactive Console Work: Selenium and Capybara

If you are working on shell most of the time Aliases are very helpfull and time saving. For testing purposes you can use Alias for getting ready your test suites. In this post, I want to explain both running Selenium and Capybara on console and creating aliases for each. This post is for Windows machines, if you are using Unix-like see this post . Creating Scripts for Selenium and Capybara First of all, it is assumed that you have installed Selenium and Capybara correctly and they work on your machines. If you haven't installed, you can see my previous posts. I am using the Selenium with Python and the Capybara with Ruby. You can use several different language for Selenium but Capybara works only with Ruby. Create scripts in a directory called scripts (in your home folder, like as ~/scripts ) for your automation tool as following, save them as capybara.rb, sel.py : Creating Aliases Depends on your favourite shell, you need to add the al...

Page-Object Pattern for Selenium Test Automation with Python

Page-object model is a pattern that you can apply it to develop efficient automation framework. With the page-model, it is possible to minimize maintenance cost. Basically page-object means that your every page is inherited from a base class which includes basic functionalities for every page. If you have some new functionalities that every page should have, you can simple add it to the base class. Base class is like the following: In this part we are creating pages which are inherited from base page. Every page has its own functionalities written as python functions. Some functions return to a new page, it means that these functions leave the current page and produce a new page. You should write as much as functions you need in the assertion part because this is the only part you can use the webdriver functions to interact with web pages . This part can be evaluate as providing data to assertion part. The last part is related to...

Performance Testing on CI: Locust is running on Jenkins

For a successful Continuous Integration pipeline, there should be jobs for testing the performance of the application. It is necessary if the application is still performing well. Generally performance testing is thought as kinds of activities performed one step before going to live. In general approach it is true but don't forget to test your application's performance as soon as there is an testable software, such as an api end point, functions, and etc. For CI it is a good approach to testing performance after functional testing and just before the deployment of next stage. In this post, I want to share some info about Jenkins and Locust. In my previous post you can find some information about Locust and Jenkins. Jenkins operates the CI environment and Locust is a tool for performance testing. To run the Locust on Jenkins you need command line arguments which control the number of clients , hatch rate, running locust without web interface and there s...

TEST THE RISK!

Search This Blog