Since we start a new instance of postgres for each test we may end up swamped
and the startup can take a bit longer. So let's loop until we get a success.
We had a couple of issues with workers dying and attempting to re-initialize
the database while it was already initialized. This will look for a free
directory and just start the DB in there, allowing workers to be better
isolated.
We'll rewrite the tests to use this infrastructure in the next commit.
Changelog-Added: The new `pyln-testing` package now contains the testing infrastructure so it can be reused to test against c-lighting in external projects
This replaces the hard-coded path to the `postgres` and `initdb` binaries with
a slightly more flexible search. It'll pick the newest version installed.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We will soon have a postgres backend as well, so we need a way to control the
postgres process and to provision DBs to the nodes. The two interfaces are the
dsn that we pass to the node, and the python query interface needed to query
from tests.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Christian Decker