This commit removes the panic used in checking the shutdown log.
Instead, the error is returned and asserted in `shutdownAllNodes` so
it's easier to check which node failed in which test. We also catch all
the errors returned from `StopDaemon` call to properly access the
shutdown behavior.
Soemtimes the node may be hanging for a while without being noticed,
causing failures in its following tests, thus making the debugging
extrememly difficult. We now assert the node has been shut down from the
logs to assert the shutdown process behaves as expected.
Starting from this commit, we begin the process of flattening the
multi-hop itests to make them easier to be maintained. The tests are
refactored into their own test cases, with each test focusing on testing
one channel type. This is necessary to save effort for future
development.
These tests are also updated to reflect the new `blockbeat` behavior.
In this commit, we start to print the PID of node's we created within an
itest. This is useful when debugging itests with `dlv` by attaching to a
given node. By printing out the PID, we facilitate such debugging
attempts.
This commit extends our healtcheck with an optional leader check. This
is to ensure that given network partition or other cluster wide failure
we act as soon as possible to avoid a split-brain situation where a new
leader is elected but we still hold onto our etcd client.
In this commit we add the LND node name to the temporary directory's
name. This change makes it easier to identify a particular test node's
temporary directory.
This commit also replaces the depreciated `ioutil.TempDir` function call
with `os.MkdirTemp`.
With this commit we create a new function that returns system wide
unique ports by using a single file to keep track of previously used
ports. We'll want to use this everywhere whenever we need to listen on a
new, random port during unit or integration tests.
Because we now have a unique source, we don't need to apply the port
offset that was used for the different tranches of parallel running
integration tests before.
