Why Does DevOps Recommend Shift Left Testing Principles?

When teams operate independently, it creates communication gaps that can lead to disorder. In contrast, when teams collaborate, they tend to be more efficient.

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A research by Capgemini claims that companies that move their testing to the left get a 10-15% decrease in the overall cost of quality. By 2022, 75% of all enterprise DevOps initiatives, according to a different Gartner report, will have adopted Shift Left testing as a routine procedure.

Businesses are actively utilizing DevOps. swiftly react to shifting consumer demands and market realities. Testing is the main obstacle to successfully deploying a DevOps system.


The adoption of DevOps methods has altered the way firms build, deploy, and maintain their applications in the constantly changing world of software development. The DevOps framework has given a lot of attention to one of the core ideas known as “Shift Left Testing.” With this strategy, the testing phase is shifted earlier in the software development lifecycle, proactive testing is emphasized, and quality assurance procedures are integrated at every stage. In this post, we explore Shift Left Testing’s many advantages for software development teams as well as why DevOps supports it.

What Does Shift Left Mean?

Software testing used to traditionally be a phase that came after development was finished, which frequently resulted in a time-consuming and expensive back-and-forth between development and testing teams. By encouraging testing to start as early as possible in the development process, ideally from the very beginning, the Shift Left Testing concept opposes this strategy. This move to an earlier stage guarantees that possible problems and flaws are found and fixed before they worsen, thereby improving the software’s overall quality.

What Are Shift Left Testing Principles?

Application testing is carried out at the end of the development cycle in accordance with conventional frameworks for software development. Applications are sent all the way back to the development teams if they don’t adhere to quality standards, work properly, or in any other way fail to satisfy specifications. This is not ideal since bugs that are found later in the development process are more difficult, expensive, and time-consuming to fix.

In the software development approach known as “Shift Left,” teams concentrate on finding and preventing issues before they arise rather than waiting for them to manifest themselves. A testing procedure is necessary to apply Shift Left testing principles. Throughout the whole life cycle of software development, it is ongoing. Done to improve software quality, minimize drawn-out test cycles, and lessen the likelihood of unpleasant shocks during the development or production phases.

What is Shift Left in DevOps?

A major shift in the software development process known as “Shift Left” in DevOps involves moving tasks that had previously taken place later in the lifecycle to earlier phases. By addressing difficulties and concerns as soon as they arise, this method seeks to improve the development process’s quality, effectiveness, and collaboration.

“Shift left” refers to moving tasks like testing, quality control, and security assessments to earlier stages of the development cycle in the context of software development. This change guarantees that potential issues, flaws, and vulnerabilities are found and fixed at an early stage, lowering the possibility that they will cause significant delays or disruptions later on.

Why does Devops Recommend Shift Left Testing Principles?

Shift Left Testing guidelines are advised by DevOps as a strategic way to improve software quality and project effectiveness. DevOps teams proactively detect and address issues in the early phases of coding by starting testing activities earlier in the software development lifecycle. This procedure reduces the possibility of later, expensive, and time-consuming corrections by ensuring that flaws, bugs, and vulnerabilities are found early on. 

Shift Left devops Testing promotes quick feedback loops and shared ownership of quality, fostering seamless collaboration between developers and testers. Additionally, this strategy is perfectly compatible with CI/CD pipelines, which enable the smooth integration of automated testing into the development process. In the end, DevOps emphasizes Shift Left Testing to optimize resource usage, speed up development cycles, and produce software.

Key Reasons for Embracing Shift Left Testing in DevOps

  • Early Bug Detection and Prevention

By bringing testing to the forefront of the development process, Shift Left Testing helps in the early detection and prevention of bugs, vulnerabilities, and defects. This proactive approach reduces the likelihood of critical issues surfacing in later stages, which can be far more costly and time-consuming to rectify.

  • Faster Feedback Loops

Shifting testing left leads to shorter feedback loops between development and testing teams. Developers receive quicker feedback on their code, allowing them to make necessary adjustments promptly. This iterative process promotes collaboration and a shared sense of ownership among team members, fostering a more efficient development cycle.

  • Cost and Time Savings

Identifying and addressing issues early in the development process translates to significant cost and time savings. The cost of fixing defects in later stages, such as during integration or production, can be exponentially higher than addressing them during the development phase. Moreover, Shift Left Testing reduces the time required for debugging and rework, leading to quicker delivery of software to end-users.

What are the challenges of incorporating it?

Common Obstacles To Using Test Automation

  • Build Time 

A lot of businesses are thinking about creating their own test automation frameworks. Since it takes a long time and money to develop from scratch, this rarely works successfully. 

Enterprises prefer coding-based open-source solutions like Selenium because of the steep learning curve. To keep their test automation framework up to date, they depend on employees with technical training. This is a concern since, as opposed to technical users, non-technical business users are more familiar with their workflows. Test teams often have fewer high-value activities to complete than technical teams.

  • High Maintenance Cost

Static scripts are what most test automation systems employ. This means that they are unable to automatically adapt to changes brought about by new displays, buttons, user flows, or user inputs. It is far more work to manage tools that use static scripts rather than dynamic scripts. Their scripts malfunction more often.

How to Address These Challenges?

The issues are resolved by a no-code test automation platform due to its short ramp-up time, low learning curve, and minimal maintenance requirements. helps businesses speed up their release cycles, enabling swift changes in a cutthroat environment. 


A paradigm shift in how software development is approached is shown by DevOps’ embrace of Shift Left Testing techniques. Organizations can proactively detect and address issues by including testing in the early phases of the development process. This results in higher-quality software, quicker delivery, and increased team communication. Software development teams should adopt Shift Left Testing as a cornerstone of their DevOps practices for the advantages of early problem detection, cost savings, and improved user experiences. The idea of “shifting left” will probably continue to be essential in the quest for effective, dependable, and customer-focused software development as the industry develops.

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