When 'loop getparams' fails, jq gets no stdin and exits with code 0.
Because -o pipefail is not enabled in the testing shell, the whole test
command succeeds, although it should fail.
Just test "loop getparams" instead and ignore its output.
- Use fping for pinging multiple hosts in parallel.
Significantly improves test runtime:
>13 s -> ~200 ms for the negative ping tests.
- Only test network namespaces that are enabled.
This allows running the netns test with a reduced service set for debugging.
- Remove deprecated services, instead add btcpayserver, spark-wallet
This improves debugging and experimenting by making it easy to compose fine-grained
scenarios that have specific tests and features enabled.
The VM test output now includes the subtest name and duration.
Remove the 'raise Exception()' hack for interactive mode.
Run 'banlist-and-restart' test before 'backups'. This speeds up the test
by avoiding an extra shutdown of all bitcoin-related services.
