With PMD being open source, various contributors can support its development and extend its capabilities. For more guidance on building the right ruleset, download our Static Code Analysis for Apex whitepaper, or take a look at the SCA course on our free training platform, DevOps Launchpad. The screenshot below shows how you can do this within Gearset. You and your team won’t necessarily want to use the entire PMD ruleset, so you can configure or disable rules to meet your needs. You can use PMD via other tools and platforms, including Gearset’s static code analysis functionality and Salesforce’s own Code Analyzer which draws on the PMD library along with some other source code analyzers. You can extend those rulesets as needed with your own custom rules. For Salesforce developers writing Apex, PMD has lots of default rules around different areas (best practice, security, performance etc). You can use PMD rulesets to highlight common mistakes/flaws in your source code, allowing quality gates to be applied at various stages. PMD is an open-source static code analyzer focused on specific languages, including Apex. For Apex analysis, we’d encourage you to use PMD. It can make up a big part of your overall testing strategy at the various stages, including unit, integration and regression testing, as you want to ensure consistent guidelines are followed and key areas (like security) are considered at all stages. While it’s different to testing that your code works as intended, testing for code quality with static code analysis is important. Reduce the cost in time and effort of reworking poor-quality code.Minimize the chance of releases being blocked by test failures.Increase the efficiency of your development cycle.Improve the quality of your work with smarter solutions and fewer quick fixes.Identify issues early on and make more informed decisions about how to tackle them.Shift-left testing benefits for your team It’s best practice to introduce tests as early in the workflow as possible. If you mapped out your development workflow, with early development on the left through to the final release on the right, different kinds of testing will probably be used at different points. The ‘shift left’ principle for software testing is all about testing early. In this article we’ll run through how you can shift Apex SCA testing left into your local development environments using PMD for Visual Studio Code (VSCode). When it comes to testing, it’s always good to try taking a ‘shift left’ approach - carrying out tests to find and quash any issues earlier on in the development process. Static code analysis (SCA) can help your team identify trends and issues throughout your codebase and get plans in place to tackle them.
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