Tests for the Jolie interpreter and standard library are contained in the directory test.

Tests are run automatically every time you run mvn install from the root directory.

You can run just the tests either by issuing the command mvn install -pl test or by going inside of the test subdirectory and running jolie test.ol.

The test program accepts regular expressions as a parameter, in case you want to run only a few selected tests. For example, to run only tests whose names contain the string expressions, you can run the command jolie test.ol ".*expressions.*".

Create a new Jolie program inside of one of the subdirectories of test. To start with, you can simply copy the primitives/test-template.ol file and rename it appropriately. The file contains instructions on how to write the test.

You must place your test program inside of a subdirectory of test. There are already a few subdirectories, for example:

• primitives contains tests for language constructs;
• extensions contains tests for extensions, like http and sodep;
• library contains tests for the Jolie Standard Library (e.g., Java services).

The Jolie test program (test.ol) runs only tests that are placed inside of a first-level subdirectory of the test directory. Nested directories inside of those (for example, directories inside of primitives) are not explored. This is useful in case you need to store auxiliary files needed by a test. It happens often when the test consists of multiple services, for example see the test extensions/http_get.ol.