HTL Sightly Unit tests

Hi @jeremylanssiers 

Unit testing HTL (Sightly) templates can be challenging because they are primarily designed for rendering HTML and are tightly coupled with the AEM platform. However, there are a few approaches you can consider to test HTL templates to some extent:

1. Integration Testing: Instead of unit testing individual HTL templates, you can perform integration testing by rendering the entire page or component that includes the HTL template. This can be done using tools like AEM Mocks or AEM Mocks JUnit. These tools provide a simulated AEM environment for testing and allow you to render and test the HTL templates in the context of a complete AEM component.

2. Component Testing: AEM 6.5 introduced a new feature called "Component Testing" that allows you to write tests for AEM components, including HTL templates. Component Testing uses a combination of JUnit and the AEM Mocks framework to simulate the AEM environment and test the behavior of components. With Component Testing, you can write tests that cover the rendering and logic of HTL templates.

3. Static Analysis: Another approach is to use static analysis tools to analyze the HTL templates for potential issues or errors. Tools like SonarQube or the AEM Rules for SonarQube plugin can analyze the HTL code and provide feedback on code quality, security vulnerabilities, and potential bugs. While this approach doesn't directly test the functionality of the HTL templates, it can help identify potential issues and improve code quality.

Using integration testing, component testing, and static analysis, you can still cover a significant portion of the functionality and ensure the quality of your HTL templates.

Thanks.

@jeremylanssiers Did you find the suggestions from users helpful? Please let us know if more information is required. Otherwise, please mark the answer as correct for posterity. If you have found out solution yourself, please share it with the community.