Testing tools

[ewjoachim]

For Cabbage to be used in a real codebase, we'll need a few tools that will make testability easier:

• A pluggable in-memory list of created tasks
• A way to launch these task synchronously
• A way to launch a single task

I'm thinking something along the lines of:

from cabbage.testing import TestTaskManager
tm = TestTaskManager()

something = []

@tm.task(queue="yay")
def t(task_run, a):
    something.append(a)

t.defer(a=1)

# A pluggable in-memory list of created tasks
assert tm.scheduled == [{"name": "t", "args": {"a": 1}]

# A way to launch these task synchronously
tm.run_scheduled()

assert something == [1]

# A way to launch a single task
t.run(a=2)

assert something == [1, 2]

(For now, no idea how we'd substitute the TaskManager with the TestTaskManager in a real case, but we can think of something)

[ewjoachim]

A way to launch a single task

That's being done in #19 ✔️