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Happo.io vs Kahlan: What are the differences?
Developers describe Happo.io as "Cross-platform, cross-browser screenshot testing for modern user interfaces". Happo is a visual regression testing tool. It hooks into your CI environment to compare the visual appearance of UI components before and after a change. Screenshots are taken in different browsers and across different screen sizes to ensure consistent cross-browser and responsive styling of your application. On the other hand, Kahlan is detailed as "A full-featured Unit & BDD test framework". It is a full-featured Unit & BDD test framework a la RSpec/JSpec which uses a describe-it syntax and moves testing in PHP one step forward.
Happo.io and Kahlan can be categorized as "Testing Frameworks" tools.
Some of the features offered by Happo.io are:
- No more manual parsing of CSS
- See the effects of changes directly
- Test individual components in isolation
On the other hand, Kahlan provides the following key features:
- RSpec/JSpec syntax
- Code Coverage metrics (xdebug or phpdbg required)
- Handy stubbing system (mockery or prophecy are no longer needed)
Kahlan is an open source tool with 1K GitHub stars and 54 GitHub forks. Here's a link to Kahlan's open source repository on GitHub.
