Commit graph

136 commits

Author SHA1 Message Date
Rusty Russell
89b96e8ac0 pyln-testing: add support to tell bitcoind not to include txs if fee is too low.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-10 17:26:47 +09:30
Rusty Russell
cf80f0520a connectd: dev-report-fds to do file descriptor audit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-10 09:41:56 +09:30
Rusty Russell
a000ee015a lightningd: do RBF again for all the txs.
Now we've set everything up, the replacement code is quite simple.

Some tests now have to deal with RBF though, and our rbf tests need work
since they look for the old onchaind messages.

In particular, when we can't afford the fee we want, we back off to
the next blockcount estimate, rather than spending all on fees
(necessarily).  So test_penalty_rbf_burn no longer applies.

Changelog-Changed: Protocol: spending unilateral close transactions now use dynamic fees based on deadlines (and RBF), instead of fixed fees.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-10 07:31:12 +09:30
Rusty Russell
cdb85d5618 lightningd: handle fees as blockcount + range.
Rather than have specific-purpose levels, have an array of
[blockcount, feerate], and rebuild the specific-purpose levels
for now on top.

We also keep a *separate* smoothed feerate, so you can ask for that
explicitly.

Since all the plugins used the same formula to derive the different
named fee levels, we apply the reverse to return to the underlying
estimates: updating the interface comes next.

This is ugly for now, but various specific-purpose levels will be
going away, as we shift to deadline-driven fees.

This temporarily breaks the floor calculation, so that test is
disabled.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-10 07:31:12 +09:30
Rusty Russell
c5b7dbcd98 pytest: clean up wait_for_onchaind_tx interface, remove wait_for_onchaind_broadcast
Using single tuples in Python is ugly, so:
1. Rename wait_for_onchaind_tx to wait_for_onchaind_txs.
2. Make it take tuples explicitly.
3. Make wait_for_onchaind_tx a simpler wrapper/unwrapper.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-07 11:49:09 +09:30
Rusty Russell
3e83bed460 pyln-testing: adapt wait_for_onchaind_broadcast function for when onchaind uses lightningd for broadcast.
We can no longer grab the tx in one line as we did with
wait_for_onchaind_broadcast, we need to track the broadcast from
lightningd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-07 11:49:09 +09:30
Rusty Russell
13ae1a5168 pyln.testing: remove Throttler.
CI seems to block; Christian suggests the throttler may be to blame somehow?

Since trying to fix it made it worse, let's just remove it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-04-06 09:10:53 +09:30
Michael Schmoock
882cafd3c7 pytest: adds skipped test_create_gossip_mesh
This can be adapted and used to create test gossip stores.
The test is just skipped by design as it would fail on intention.
2023-04-05 06:13:08 +09:30
Michael Schmoock
fb0027e314 pyln-testing: fundbalancedchannel default total_capacity to FUNDAMOUNT 2023-04-05 06:13:08 +09:30
Michael Schmoock
407d4d2922 pyln-testing: remove deprecated fund_channel
This method is no longer used in cln nor in the plugins repo.

Changelog-None
2023-04-05 06:13:08 +09:30
Greg Sanders
cb7caa3139 Re-enable PSBT tests for Liquid except test_sign_and_send_psbt 2023-03-23 16:10:55 +10:30
Michael Schmoock
3dde1ca399 pyln-testing: fix wait_for_htlcs helper
When doing the updates on the plugin repo, I discovered that
this helper function got broken by the `listpeerchannels` upgrade.

Its rarely used in the main repo, just at the end of the pyln-testing
'pay' helper.

If unfixed, this bug may result in test flakes when using the `pay`
helper, because its not correctly waiting for all HTLCs to be resolved
before returning.

Changelog-None
2023-02-02 18:47:08 +01:00
Rusty Russell
85fc46f76c pyln-testing: don't default openchannel and fundwallet to p2sh-segwit, use bech32.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2023-01-14 21:17:45 +10:30
Vincenzo Palazzo
f08d3516f7 contrib/pyln-testing: use listpeerchannels. 2023-01-13 10:42:42 +10:30
Greg Sanders
3b56e90a13 Turn on logging for key topics in bitcoind for black box tests 2022-12-22 12:05:01 +01:00
Greg Sanders
c79c9c73fc Properly raise ValueError message in wait_for 2022-12-19 13:09:46 +01:00
Rusty Russell
b6134303d4 pyln: add context manager to simpify filter use.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: pyln: LightningRpc has new `reply_filter` context manager for reducing output of RPC commands.
2022-11-09 20:25:58 +10:30
Rusty Russell
1436ad334d pytest: add filter tests.
We suppress schema reply checking when filter is set: we could just
remove all the `required` fields in the JSON schema.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-11-09 20:25:58 +10:30
Christian Decker
437ae11610 pytest: Configure the plugin logging to debug 2022-09-25 15:13:12 +02:00
Rusty Russell
2752e04f8f db: add scid field to channels table.
Normally, we'd use the delete_columns function to remove the old
`short_channel_id` string field, *but* we can't do that for sqlite, as
there are other tables with references to it.  So add a FIXME to do
it once everyone has upgraded to an sqlite3 which has native support
for column deletion.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-09-22 15:19:46 +02:00
Rusty Russell
fdc59dc94a contrib/pyln-testing: pass through id correctly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-09-16 12:31:45 +09:30
niftynei
c143914ebf bkpr: migration to delete any duplicate lease_fee entries
Clean up for #5557.

If you've got duplicate 'lease_fee' entries, we delete them!
2022-09-14 15:59:37 +09:30
Rusty Russell
9543204b79 pytest: don't use bogus scids for first hop of route.
This was a legacy from when it was redundant: with multiple channels, it
no longer is!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-08-09 16:33:24 -05:00
niftynei
3c79a456c0 test-db-provider: if postgres in tests, startup a bookkeeper db
FXIME: Has a edge case where if you disable the bookkeeper, it'll
blowup because you've got an option that isn't present anywhere...
2022-07-28 12:08:18 +09:30
niftynei
5c45939acf test-utils: add the bolt11 invoice
nice to have for making tests that assert on description/bolt data
2022-07-28 12:08:18 +09:30
Rusty Russell
4cada557ba pytest: don't redirect stderr by default.
Some tests need to inspect it, but most don't, and I suspect I'm missing some
error messages due to this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-07-21 15:37:05 -05:00
Christian Decker
b8bcc7d13f pytest: Add a new RPC interface to talk to grpc
This allows us to re-use existing tests (assuming the call and fields
are covered by `cln-rpc` and `cln-grpc`) to test the full roundtrip
from test over the grpc interface to the json-rpc interface and back
again.

You can switch to the grpc interface by setting the `CLN_TEST_GRPC`
environment variable to 1, but for now only very few shims are
implemented (due to the non-generated nature of LightningRpc).
2022-07-21 14:19:06 +09:30
Rusty Russell
68b45c2ae0 pytest: restore prefix to logging.
Since we now log directly, we don't prepend the prefix ourselves, making it really
hard to tell *which* lightningd the log applies to!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-07-09 09:59:52 +09:30
Christian Decker
695a98e5d8 pyln-testing: Add gossip_store parser to testing framework
I had to parse quite a few of these files debugging zeroconf, so I
thought it might be nice to have direct access here.

Changelog-Added: pyln-testing: Added utilities to read and parse `gossip_store` file for nodes.
2022-07-04 22:14:06 +02:00
Vincenzo Palazzo
bad943da55 valgrind: ingore plugin build with rust
Ok this should be fixed the following stack trace


```
2022-06-29T14:19:41.183Z DEBUG   lightningd: Command returned result after jcon close
------------------------------- Valgrind errors --------------------------------
Valgrind error file: valgrind-errors.55581
==55581== Syscall param statx(file_name) points to unaddressable byte(s)
==55581==    at 0x4B0188E: statx (statx.c:29)
==55581==    by 0x1133481: std::sys::unix::fs::try_statx (weak.rs:178)
==55581==    by 0x11265E0: std::fs::buffer_capacity_required (fs.rs:851)
==55581==    by 0x112675B: <std::fs::File as std::io::Read>::read_to_string (fs.rs:644)
==55581==    by 0x10DACA8: num_cpus::linux::Cgroup::param (linux.rs:214)
==55581==    by 0x10DAB39: num_cpus::linux::Cgroup::quota_us (linux.rs:203)
==55581==    by 0x10DA9C2: num_cpus::linux::Cgroup::cpu_quota (linux.rs:188)
==55581==    by 0x10DA5A1: num_cpus::linux::load_cgroups (linux.rs:149)
==55581==    by 0x10DA23D: num_cpus::linux::init_cgroups (linux.rs:129)
==55581==    by 0x10DCDC8: core::ops::function::FnOnce::call_once (function.rs:227)
==55581==    by 0x10DC749: std::sync::once::Once::call_once::{{closure}} (once.rs:276)
==55581==    by 0x21EE89: std::sync::once::Once::call_inner (once.rs:434)
==55581==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==55581== 
==55581== Syscall param statx(buf) points to unaddressable byte(s)
==55581==    at 0x4B0188E: statx (statx.c:29)
==55581==    by 0x1133481: std::sys::unix::fs::try_statx (weak.rs:178)
==55581==    by 0x11265E0: std::fs::buffer_capacity_required (fs.rs:851)
==55581==    by 0x112675B: <std::fs::File as std::io::Read>::read_to_string (fs.rs:644)
==55581==    by 0x10DACA8: num_cpus::linux::Cgroup::param (linux.rs:214)
==55581==    by 0x10DAB39: num_cpus::linux::Cgroup::quota_us (linux.rs:203)
==55581==    by 0x10DA9C2: num_cpus::linux::Cgroup::cpu_quota (linux.rs:188)
==55581==    by 0x10DA5A1: num_cpus::linux::load_cgroups (linux.rs:149)
==55581==    by 0x10DA23D: num_cpus::linux::init_cgroups (linux.rs:129)
==55581==    by 0x10DCDC8: core::ops::function::FnOnce::call_once (function.rs:227)
==55581==    by 0x10DC749: std::sync::once::Once::call_once::{{closure}} (once.rs:276)
==55581==    by 0x21EE89: std::sync::once::Once::call_inner (once.rs:434)
==55581==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==55581==
--------------------------------------------------------------------------------
Leaving base_dir /tmp/ltests-hzt9ppqp intact, it still has test sub-directories with failure details: ['test_peers_1']
```

Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
2022-07-03 20:36:20 +09:30
Rusty Russell
4970704d24 pytest: fix gossipwith flake harder.
Even though we generally wait until a node has seen the gossip,
that doesn't mean that connectd has processed it!  This means when
we connect it may still send us "old" gossip.

So we set the OPT_GOSSIP_QUERIES bit, which means don't send until we
ask.  But now it sends us WIRE_QUERY_CHANNEL_RANGE, so everyone needs
to filter that out.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
9137ea262b pytest: don't assume that join_nodes needs only check ends.
I saw another "only_one()" fail on alias checking: it's not
entirely clear to me with the more aggressive sending of
own gossip, that we necessarily process in order, so we might
not have actually seen all channels just because we saw
the farthest one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
61d8eb5fa8 pyln-testing: increase default daemon.wait() timeout.
Valgrind in CI is slow:

```
    def test_bitcoin_failure(node_factory, bitcoind):
...
        # Ignore BROKEN log message about blocksonly mode.
        l2 = node_factory.get_node(start=False, expect_fail=True,
                                   allow_broken_log=True)
        l2.daemon.start(wait_for_initialized=False)
        # Will exit with failure code.
>       assert l2.daemon.wait() == 1

tests/test_misc.py:114: 
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
d2952576cd pyln-testing: restore proper streaming behaviour for lightningd.
Get it to log direct to stdout, so we see what's happening *as it
happens* rather than as we read it.  We could restore the thread we
were using before, but that added more problems than it solved.

This means that we need the hsm password prompts in the log though.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
a0e0dbf229 pyln-testing: use files for stdout and stderr, not threads.
Some flakes are caused by weird races in this code.  Plus, if we
get things to write straight to files, we might see things in
there on post-mortem which happen after the python runner exits.

It's a bit less efficient, but much simpler.  Let's see if it helps!

Some tests need a rework now, since we don't get a failure (except
eventual timeout), but they're simpler.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
eb25e08039 pytest: fix port allocation race when nodes restart.
We use ephemeral_port_reserve to grab ports, but this can fail when we
restart a node, since the port can be reallocated at that point.

Attempt to overcome this using a global reserved list (is there a
neater way?).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-06-27 17:21:35 +09:30
Rusty Russell
08d5776ebc lightningd: deprecate msatoshi in sendpay route.
We should be using amount_msat always.  Many tests were not.  Plus,
deprecating it simplifies the code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Deprecated: JSONRPC: `sendpay` `route` elements `msatoshi` (use `amount_msat`)
2022-06-21 06:52:35 +09:30
Rusty Russell
cd7e784d6f lightningd: change msatoshi args to amount_msat.
This is consistent with our output changes, and increases consistency.
It also keeps future sanity checks happy, that we only use JSON msat
helpers with '_msat' fields.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `invoice`, `sendonion`, `sendpay`, `pay`, `keysend`, `fetchinvoice`, `sendinvoice`: `msatoshi` argument is now called `amount_msat` to match other fields.
Changelog-Deprecated: JSON-RPC: `invoice`, `sendonion`, `sendpay`, `pay`, `keysend`, `fetchinvoice`, `sendinvoice` `msatoshi` (use `amount_msat`)
2022-06-21 06:52:35 +09:30
Rusty Russell
836c1b805b doc: update c-lightning to Core Lightning almost everywhere.
Mostly comments and docs: some places are actually paths, which
I have avoided changing.  We may migrate them slowly, particularly
when they're user-visible.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-07 06:53:26 +09:30
Rusty Russell
c1ee32027d pyln-testing: check the request schemas.
This means suppressing schemas in some places too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-02 09:46:01 +10:30
Rusty Russell
b45b731c55 doc/schemas: fixes for request schemas.
Types are fixed, in particular:

* rename "OutputDesc" to more consistent "outputdesc".
* rename "utxo" to more consistent "outpoint".
* it's "boolean" not "bool".
* "number" means int or float, usually it should be u32.

Specific commands:

* close `id` can be by channel id, scid.
* close `feerange` is a feerate type.
* datastore/deldatastore/listdatastore `key` can be singleton.
* delexpiredinvoice: `maxexpirytime` is not required, is a u64.
* invoice/delinvoice/listinvoice `label` can be an integer
* fundpsbt: many fields are u32 not number (JSON for int or float).
* invoice: `msatoshi` can be "any".
* invoice: `expiry` has a type (now must be numeric).
* invoice: `exposeprivatechannels` can be bool or array of scids.
* invoice: `deschashonly` added
* keysend: there's no "float" type, use "number" or "u32" etc.
* keysend: `routehints` is a valid arg, as is `extratlvs` (EXPERIMENTAL_FEATURES)
* listdatastore: `key` is not required.
* newaddr: `addresstype` can be "all"
* pay: `exemptfee` is "msat", new fields `locaofferid` and `exclude`
* sendonion: was mis-formatted, missed `localofferid` and `groupid` fields.
* sendpay: add `localofferid` and `groupid` params.
* signpsbt: add `signonly` param.
* txprepare "outptus" typo.
* waitsendpay: add `groupid` and  fix `partid` type.
* withdraw: `destination` is a bitcoin address, not a pubkey.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-02 09:46:01 +10:30
Rusty Russell
5d8fc84675 pyln-testing: add dev-invoice.
This will override the schema later.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-02 09:46:01 +10:30
Rusty Russell
26bee7a2ab pyln-testing: add dev-pay.
This will override the schema later.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-02 09:46:01 +10:30
Rusty Russell
2424b7dea8 connectd: hold peer until we're interested.
Either because lightningd tells us it wants to talk, or because the peer
says something about a channel.

We also introduce a behavior change: we disconnect after a failed open.
We might want to modify this later, but we it's a side-effect of openingd
not holding onto idle connections.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Simon Vrouwe
ad22535d34 pyln-testing: improve description of wait_for_logs 2022-03-01 09:38:40 +10:30
Simon Vrouwe
84bead9396 pyln-testing: in LightningNode.openchannel, make wait_for_announce more reliable
it now waits for 'alias' in node_announcement, not just block confirms.
more cleanup
2022-03-01 09:38:40 +10:30
Simon Vrouwe
f84e1a0536 pyln-testing: in utils, update method fundbalancedchannel, now it also works with dualfund
and some cleanup, fundchannel has been returning tx, txid and outnum for years
2022-03-01 09:38:40 +10:30
Rusty Russell
d0c7e18995 bitcoind: importmulti fails (bitcoin master), use importdescriptors
But this requires a watch-only wallet, and python-bitcoinlib doesn't support
multiple wallets, so we need to unload the original one, but then we need
to generate a block, so that can't generate a new address, so we need
an address arg to generate_block.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-20 19:29:44 +10:30
Rusty Russell
e8d2176e6b pytest: protect against bad gossip messages from mining confirms too fast.
If we fund a channel between two nodes, then mine all the blocks to
announce it, any other nodes may see the announcement before the
blocks, causing CI to complain about "bad gossip":

```
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Ignoring future channel_announcment for 113x1x1 (current block 112)
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 113x1x1/0
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 113x1x1/1
lightningd-4: 2022-01-25T22:33:25.468Z DEBUG   032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e-gossipd: Bad gossip order: WIRE_NODE_ANNOUNCEMENT before announcement 032cf15d1ad9c4a08d26eab1918f732d8ef8fdc6abb9640bf3db174372c491304e
```

Add a new helper for this case, and use it where there are more than 2 nodes.

Cleans up test_routing_gossip and a few other places which did this manually.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-08 11:15:52 +10:30
Rusty Russell
96ff874bd1 pytest: fix race when we mine blocks after pay().
This seems to trigger now, especially on PostgresQL (maybe it's faster
to process blocks?).

e.g. test_closing_simple() hangs in close(), because the close is unilateral
because the HTLC timed out, so it's waiting for a block (other lines removed):

```
lightningd-1: 2022-01-12T00:33:46.258Z DEBUG   022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-channeld-chan#1: peer_out WIRE_COMMITMENT_SIGNED
lightningd-1: 2022-01-12T00:33:46.278Z DEBUG   lightningd: close_command: timeout = 172800
2022-01-12T01:03:36.9757201Z lightningd-2: 2022-01-12T00:33:46.384Z DEBUG   lightningd: Adding block 104: 73ffa19d27d048613b2731e1682b4efff0dc226807d8cc99d724523c2ea58204
2022-01-12T01:03:36.9759053Z lightningd-2: 2022-01-12T00:33:46.396Z DEBUG   lightningd: Adding block 105: 44fd06ed053a0d0594abcfefcfa69089351fc89080826799fb4b278a68fe5c20
2022-01-12T01:03:36.9760865Z lightningd-2: 2022-01-12T00:33:46.406Z DEBUG   lightningd: Adding block 106: 0fee2dcbd1376249832642079131275e195bba4fb49cc9968df3a899010bba0f
2022-01-12T01:03:36.9762632Z lightningd-2: 2022-01-12T00:33:46.418Z DEBUG   lightningd: Adding block 107: 7f24f2d7d3e83fe3256298bd661e57cdf92b058440738fd4d7e1c8ef4a4ca073
2022-01-12T01:03:36.9773411Z lightningd-2: 2022-01-12T00:33:46.429Z DEBUG   0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518-channeld-chan#1: peer_in WIRE_REVOKE_AND_ACK
2022-01-12T01:03:36.9794707Z lightningd-2: 2022-01-12T00:33:46.437Z DEBUG   0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518-channeld-chan#1: Commits outstanding after recv revoke_and_ack
2022-01-12T01:03:36.9788197Z lightningd-2: 2022-01-12T00:33:46.433Z DEBUG   lightningd: Adding block 108: 283b371fb5d1ef42980ea10ab9f5965a179af8e91ddf31c8176e79820e1ec54d
2022-01-12T01:03:36.9799347Z lightningd-2: 2022-01-12T00:33:46.439Z DEBUG   0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518-channeld-chan#1: HTLC 0[REMOTE] => RCVD_REMOVE_REVOCATION
2022-01-12T01:03:36.9808057Z lightningd-2: 2022-01-12T00:33:46.447Z UNUSUAL 0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518-chan#1: Peer permanent failure in CHANNELD_NORMAL: Fulfilled HTLC 0 RCVD_REMOVE_REVOCATION cltv 109 hit deadline
```

This is because `pay` returns from l1 when it has the preimage, not
when the HTLC is fully resolved.  Add a helper for this, and call it
at the end of the pay test helper.  We might need this elsewhere
though!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-01-20 15:24:06 +10:30