Context (Scenario)

Scenario > Context

In Scenario, the Context object represents the charm code and all of the metadata that is associated with it.

Scenario is about simulating events on charms.

The Context encapsulates:

• what charm type should be instantiated and passed to ops.main when the event emission is simulated
• what is in the charm’s metadata.yaml, actions.yaml, config.yaml metadata files
• what is the charm execution root (a temporary directory and its contents when the charm is executed)

Usage

from scenario import Context, State
from charm import MyCharm

ctx = Context(
  charm_type=MyCharm, 
  meta={'name': 'my-charm'}
)
state_out: State = ctx.run('start', State())

Last updated 22 days ago.