Migration guides

These guides help you migrate away from deprecated approaches to charming.

Harness

Harness is a deprecated framework for writing unit tests. You should migrate to state-transition tests.

• Migrate unit tests from Harness

pytest-operator

pytest-operator and python-libjuju are deprecated. You should migrate integration tests to Jubilant.

• Migrate integration tests from pytest-operator

Hooks-based charms

Hooks-based charms use script files instead of Python code with Ops. You should migrate to Ops.

• Migrate from a hooks-based charm