About YAML tests

Odoo also supports a second type of tests, described using YAML data files. Originally all tests used YAML, until more recently the unittest based tests were introduced. While both are supported, and many core addons still include YAML tests, the official documentation currently does not mention the YAML tests. The last documentation on it is available at https://doc.odoo.com/v6.0/contribute/15_guidelines/coding_guidelines_testing/ .

Developers with a Python background will probably feel more at home with unittest, since it is a standard Python feature, while YAML tests are designed with Odoo-specific conventions. The trend clearly is to prefer unittest over YAML, and YAML support can be expected to be dropped in future versions.

For these reasons, we will not do an in-depth coverage of YAML tests. It might still be useful to have some basic understanding on how they work.

YAML tests are data files, similar to CSV and XML. In fact the YAML format was intended to be a more...