Code generation in DevOps kick starts the automation. When the code is out to the production, the automation is carried out to the testing solutions in the CI /CD pipeline along with other toolsets. Let’s consider the key factors that make automation testing in CI CD pipeline an absolute necessity.
Gives A Boost To Shift Left Testing
CI CD pipeline comes into existence with a steady stream of changes with minimal delays that ensures the shortening of overall testing duration. It helps to progress on SDLC with shift-left testing which emphasizes the importance of finding bugs as soon as the requirement gathering phase of SDLC.
Shift-left testing methodology conveys that a bug which was discovered in the early stages of SDLC requires less cost & resource bandwidth to be dealt with, as a comparison to a bug that is found in later stages of SDLC. Interesting, isn’t it? Read this blog to understand how shift-left testing can help your product quality
Faster DevOps Means Faster CI CD Pipeline, But What Makes Them Faster?
If you guessed automation testing, then you guessed it right! Integrating automated testing into continuous delivery pipelines covers a crucial component and being without that means things will fall short or an organization may not be able to reap the full benefits of DevOps.
Automated testing is the way by which you can make quality assurance as continuous, reliable, and agile as the rest of the operation in DevOps.
Should the development teams realize the transition to CI/CD, it will expose some challenges which arises off and on in path tracking; and will strengthen testing suites with automation.
Automation Testing In CI CD Pipeline Is An Efficient Move For Releasing Software Updates
Frequent software updates may barely fail to process a staggering number of bugs in a continuous delivery pipeline. The things can get off because consistent and speedy efforts are required by the testing team to address the issues. It increases the risk of a polluted build with problematic code; likely affecting the readability and maintainability of the code.
Skipping Automated Testing may further cause a delay in production and updating the build at regular intervals of time. When DevOps is not standardized with automated testing, a way around to avoid irregular and ad hoc can’t be developed.
The unplanned and random testings without any automated process, or planning eventually fail to streamline the software delivery processes.
Version Control, Roll-back, & Automated Regression Testing
One of the CI/CD pipeline best practice entails code in the central repository where developers can push the code and pull a request for the latest code available for a feature implementation or bug fixes. Using central repository, the code remains up-to-date and all the records of changes to identify differences in versions keep the builds in a maintainable form.
Developers render a kind of experience when they come across an issue which was not accidentally fixed in an earlier version of a software release, or while preparing or fixing the latest build; an unwanted issue pops out.
Latest build turns out to be different from what was actually planned. Now, the option left to save the limited time is roll-back rather than tracking the actual reasons, rather than figuring what actually went wrong? As that could be more deteriorating and time-consuming sometimes.
If bugs keep on popping up, they break the sanity, hinder the continuity. and a challenge to the quality of the application. The roll-back also brings presentations, documents, flow diagrams, etc. under the hood. So the version control system offers you a seamless roll-back feature to save time, effort, and pacify an uncontrolled situation which could arise during the production or release of a build.
To make the most of any CI CD pipeline, prevention of likelihood of rollbacks should be intended, which can be attained by fully automated software testing along with other well-designed components of the pipeline. Because even if you do roll back in a hurry to minimize the damage over customer’s user-experience, brand reputation, you need to evaluate the entire web application is working as it was before you pushed any code changes. For that quick evaluation automation testing in CI CD pipeline works like magic.
Not convinced yet? Let us evaluate an example scenario related to automated cross browser testing.
Cross browser testing is a process of rendering a website over different browser to evaluate any UI anomalies. It can be done manually as well as automatically using open source frameworks such as Selenium.
When we practice cross browser testing manually, we may have to sit and run through our website on over hundreds of browsers, & OS combinations based on our target audience.
Now, if your website goes south due to a recent migrated code change into production & as a result, your website’s content, typography, images, icons, padding, company logo, etc. end up looking abrupt then it can cause havoc for your business. Especially, if that gets noticed by your competitors. They can take a screenshot and post a meme on you which won’t take long to go viral. To come out of such a crisis you haphazardly went for a roll-back. But what next?
Now, you need to make sure that the web application is working as good as it was before you pushed changes. If you start evaluating that by manual cross browser testing then I am afraid it can be very troublesome & time-consuming. But if you were incorporating automation testing in CI CD then all you need to do is run an already configured and tested cross browser test suite.
What makes it even better is a cloud-based cross browser testing platform such as LambdaTest which allows you to test your website on 2000+ browsers and browser versions using an online Selenium Grid.
Going Parallel With Automation Testing In CI CD Pipeline
The ability to run multiple test cases in parallel is powerful indeed. If we consider our previous outage example then roll-back with automation testing can provide you with a sense of relief. However, if the tests are run sequentially then the time taken could be significantly longer when compared with parallel testing. Parallel testing with Selenium can cut short your test cycles ten folds, assuring maximum test coverage with a shorter time period.
Going parallel with automation testing for CI CD pipeline is a key and boon in performing large test scripts at scale. LambdaTest Selenium Grid offers parallel testing for Selenium automation scripts.
Pro-tip: More time-consuming tests should wait for their turn till last, hence use them just before code enters production.
Maintaining Ephemeral Testing Environments Or Staging Environments
Using ephemeral testing environments in containers with the minimal state can forestall the side effects that can slip into subsequent runs of the test suite. Containerized testing environments are portable in which developers can easily replicate the configuration to be used later on in the CI CD pipeline. Also, there is no harm to environmental fidelity as you easily spin up the containers and destroy them.
Unlike ephemeral testing environments, Staging environments are supposed to be a durable, long-lasting replica of production environments. Staging environments are pivotal for testing every change prior pushing it to the live web-application. But how do we go about testing a website locally on different browsers?
LambdaTest provides you with an SSH tunnel for Selenium automation testing which connects your local machine to our cloud servers. Ensure your website is up to the mark on more than 2000+ browsers before you make it live.
CI CD pipeline is crucial for migrating chances from one staging environment to another, also responsible for final migration to production post-sign-off. Performing local automation testing in CI CD pipeline can help you come up with lesser outages, along with a seamless UI & UX, as you know how well your website may look once it goes live.
Development and Testing Goes Hand In Hand
IT Operation when integrated with the development team construct a DevOps. Although, programmers broadcast a message to system admins to deploy the software in production and similarly, the constant communication leads to the faster software delivery with maximum visibility. Nonetheless, it can’t wipe out the role of automation testing.
Automation testing is a prerequisite in DevOps without which a software delivery can’t be optimized through which a development and operation teams become able to work in tandem.
That means that automation testing needs to be introduced to achieve the true essence of CI/CD. It further makes the coordination easy among the development and IT Ops teams.
As all the changes are going to pass through CI/CD systems, it will eliminate or minimize the problematic resources. Complex running tests should be followed after the build gets validated by quick-running tests.
Splitting testing efforts can effectively undermine the effects of size and complexity of larger tests which create a deployment risk in larger products. Hence, smaller versions are recommended for a quick release of the build.
Once you split these tests, putting them in the queue and running them in parallel using automation testing for CI CD pipeline will help you with a robust mechanism, allowing you to find & eliminate tiny roadblocks.
Better Product Visibility & Feedback
Automated tests such as unit or interface testing provide greater visibility on the product’s state at any point of the time. Test automation for CI CD is a way to retrieve the feedback for developers so that a quick fix can take place to always manage a build in a releasable stage.
Easy Reconfiguration With Automation Testing In CI CD Pipeline
Test automation implies most of the reconfiguration can be enabled automatically. A tendency to adjust configurations or framework with the advent of new technology or when the requirement might change, at any given point of time, makes the CI/CD pipeline robust.