Chapter 16. Making Lire Test-infected
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## Chapter 16. Making Lire “Test-infected”

Soon after the release of Lire 1.2.1, unit tests were introduced in the source tree. Unit tests help development in several ways; the most important one being that you can make changes to code and run the unit tests to make sure that nothing was broken by that changes.

You can find helpful resources on Unit testing on the PerlUnit home page as well as on the JUnit home page from which it was inspired.

## Unit Tests in Lire

### PerlUnit

Unit tests are written using the PerlUnit framework. You need to install version 0.24 or later of the `Test::Unit` to run the unit tests.

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