There are several different testing methods you can use as part of your development process to ensure you build high-quality applications. Shift-left testing is one approach that has become popular with agile teams because it enables them to move the testing phase to earlier stages of the development life cycle, which is a primary goal for agile development. Shift-left testing has a few advantages over traditional methods.

DevOps, DevSecOps and CI/CD are synonymous with one word - automation. Automating their workflows gives developers the ability to deliver consistency, time savings, and useful insights into their software development life cycle (SDLC). But automation is only as efficient as your weakest link or most cumbersome bottleneck, which can sometimes be security testing. Security testing has traditionally been carried out either manually or quite late in the process.

Tests are an integral part of most well-working Rails applications where maintenance isn’t a nightmare and new features are consistently added, or existing ones are improved. Unfortunately, for many applications, a production environment is where they are put under heavy workload or significant traffic for the first time. This is understandable as such tests are costly.

Testing is vital because it helps you discover bugs before you release software, enabling you to deliver a high-quality product to your customers. Sometimes, though, tests are flaky and unreliable. Tests may be unreliable because of newly-written code or external factors. These flaky tests, also known as flappers, fail to produce accurate and consistent results. If your tests are flaky, they cannot help you find (and fix) all your bugs, which negatively impacts user experience.