close: spec is final, it's not experimental.
That was quick! We remove the 50% test, since the default is now to use quickclose. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Changelog-Added: Protocol: We now perform quick-close if the peer supports it.
This commit is contained in:
Rusty Russell
parent
6ee8c40b29
commit
84957be410
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@ -35,9 +35,7 @@ friends to upgrade!
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The \fIfee_negotiation_step\fR parameter controls how closing fee
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negotiation is performed assuming the peer proposes a fee that is
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different than our estimate\. (Note that using this option
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prevents \fBexperimental-quick-close\fR, as the quick-close protocol
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does not allow negotiation)\.
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different than our estimate\. (Note that modern peers use the quick-close protocol which does not allow negotiation: see \fIfeerange\fR instead)\.
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On every negotiation step we must give up
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@ -80,8 +78,9 @@ unless this flag is passed in\. Defaults to false\.
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\fIfeerange\fR is an optional array [ \fImin\fR, \fImax\fR ], indicating the
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minimum and maximum feerates to offer\. \fIslow\fR and \fIunilateral_close\fR
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are the defaults\.
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minimum and maximum feerates to offer: the peer will obey these if it
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supports the quick-close protocol\. \fIslow\fR and \fIunilateral_close\fR are
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the defaults\.
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Rates are one of the strings \fIurgent\fR (aim for next block), \fInormal\fR
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@ -155,4 +154,4 @@ ZmnSCPxj \fI<ZmnSCPxj@protonmail.com\fR> is mainly responsible\.
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Main web site: \fIhttps://github.com/ElementsProject/lightning\fR
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\" SHA256STAMP:94359c9d63107e5558c7f9cec137899a057f2d172df08f4a78de8fe09defb440
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\" SHA256STAMP:1182e596ddf208f37d269e37b06e30199b8d6b6bc1373d92096557c20ad437ac
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@ -33,9 +33,7 @@ friends to upgrade!
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The *fee_negotiation_step* parameter controls how closing fee
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negotiation is performed assuming the peer proposes a fee that is
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different than our estimate. (Note that using this option
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prevents **experimental-quick-close**, as the quick-close protocol
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does not allow negotiation).
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different than our estimate. (Note that modern peers use the quick-close protocol which does not allow negotiation: see *feerange* instead).
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On every negotiation step we must give up
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some amount from our proposal towards the peer's proposal. This parameter
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@ -65,10 +63,10 @@ can rescue openings which have been manually miscreated.
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(option_will_fund), we prevent initiation of a mutual close
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unless this flag is passed in. Defaults to false.
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*feerange* is an optional array [ *min*, *max* ], indicating the
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minimum and maximum feerates to offer. *slow* and *unilateral_close*
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are the defaults.
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minimum and maximum feerates to offer: the peer will obey these if it
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supports the quick-close protocol. *slow* and *unilateral_close* are
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the defaults.
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Rates are one of the strings *urgent* (aim for next block), *normal*
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(next 4 blocks or so) or *slow* (next 100 blocks or so) to use
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@ -90,8 +90,6 @@ On success, an object is returned, containing:
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.IP \[bu]
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\fBexperimental-offers\fR (boolean, optional): \fBexperimental-offers\fR field from config or cmdline, or default
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.IP \[bu]
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\fBexperimental-quick-close\fR (boolean, optional): \fBexperimental-quick-close\fR field from config or cmdline, or default
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.IP \[bu]
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\fBexperimental-shutdown-wrong-funding\fR (boolean, optional): \fBexperimental-shutdown-wrong-funding\fR field from config or cmdline, or default
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.IP \[bu]
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\fBrgb\fR (hex, optional): \fBrgb\fR field from config or cmdline, or default (always 6 characters)
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@ -272,4 +270,4 @@ Vincenzo Palazzo \fI<vincenzo.palazzo@protonmail.com\fR> wrote the initial versi
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Main web site: \fIhttps://github.com/ElementsProject/lightning\fR
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\" SHA256STAMP:fd8f2ae862627712b6baf51741670a6d60db8342f839580871617deed0c75317
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\" SHA256STAMP:b6e48314de5642ec61a3e2c989ac0197630c2a3c0e8e6d86020b597679049400
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@ -55,7 +55,6 @@ On success, an object is returned, containing:
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- **experimental-dual-fund** (boolean, optional): `experimental-dual-fund` field from config or cmdline, or default
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- **experimental-onion-messages** (boolean, optional): `experimental-onion-messages` field from config or cmdline, or default
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- **experimental-offers** (boolean, optional): `experimental-offers` field from config or cmdline, or default
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- **experimental-quick-close** (boolean, optional): `experimental-quick-close` field from config or cmdline, or default
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- **experimental-shutdown-wrong-funding** (boolean, optional): `experimental-shutdown-wrong-funding` field from config or cmdline, or default
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- **rgb** (hex, optional): `rgb` field from config or cmdline, or default (always 6 characters)
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- **alias** (string, optional): `alias` field from config or cmdline, or default
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@ -206,4 +205,4 @@ RESOURCES
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---------
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Main web site: <https://github.com/ElementsProject/lightning>
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[comment]: # ( SHA256STAMP:8b198154e70e1c0acb6c9ccdbe9e41e35ddab55738be9ea9076c5384da965cb8)
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[comment]: # ( SHA256STAMP:7bb40fc8fac201b32d9701b02596d0fa59eb14a3baf606439cbf96dc11548ed4)
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@ -625,16 +625,6 @@ about whether to add funds or not to a proposed channel is handled
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automatically by a plugin that implements the appropriate logic for
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your needs\. The default behavior is to not contribute funds\.
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\fBexperimental-quick-close\fR
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Specifying this means we send our range of acceptable fees to the peer
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on mutual close\. If they support it too, we'll simply use that for
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closing (unless \fIfee_negotiation_step\fR is set, see \fBlightning-close\fR(7))\.
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We always use this on channels which negotiation \fBoption_anchor_outputs\fR,
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as the spec requires that\.
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.SH BUGS
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You should report bugs on our github issues page, and maybe submit a fix
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@ -660,4 +650,4 @@ Main web site: \fIhttps://github.com/ElementsProject/lightning\fR
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Note: the modules in the ccan/ directory have their own licenses, but
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the rest of the code is covered by the BSD-style MIT license\.
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\" SHA256STAMP:0d2474276b325cb002191211fb1d0da2409ebc859ff3ccc6dd3e688b10d4550c
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\" SHA256STAMP:1c392f3fee66dc6c1fc2c34200204a9be1d79e53fd5fb1720ad169fc671f71c0
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@ -517,14 +517,6 @@ about whether to add funds or not to a proposed channel is handled
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automatically by a plugin that implements the appropriate logic for
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your needs. The default behavior is to not contribute funds.
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**experimental-quick-close**
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Specifying this means we send our range of acceptable fees to the peer
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on mutual close. If they support it too, we'll simply use that for
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closing (unless *fee_negotiation_step* is set, see lightning-close(7)).
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We always use this on channels which negotiation `option_anchor_outputs`,
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as the spec requires that.
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BUGS
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----
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@ -117,10 +117,6 @@
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"type": "boolean",
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"description": "`experimental-offers` field from config or cmdline, or default"
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},
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"experimental-quick-close": {
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"type": "boolean",
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"description": "`experimental-quick-close` field from config or cmdline, or default"
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},
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"experimental-shutdown-wrong-funding": {
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"type": "boolean",
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"description": "`experimental-shutdown-wrong-funding` field from config or cmdline, or default"
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@ -312,9 +312,8 @@ void peer_start_closingd(struct channel *channel,
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channel->shutdown_scriptpubkey[REMOTE],
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channel->closing_fee_negotiation_step,
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channel->closing_fee_negotiation_step_unit,
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(ld->use_quickclose
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/* Don't quickclose if they specified how to negotiate! */
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&& channel->closing_fee_negotiation_step == 50
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(channel->closing_fee_negotiation_step == 50
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&& channel->closing_fee_negotiation_step_unit == CLOSING_FEE_NEGOTIATION_STEP_UNIT_PERCENTAGE)
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/* Always use quickclose with anchors */
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|| channel->option_anchor_outputs,
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@ -295,11 +295,6 @@ static struct lightningd *new_lightningd(const tal_t *ctx)
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* case this is a pointer to an enum feerate-indexed array of values */
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ld->force_feerates = NULL;
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/*~ We don't enable new network features until they've been approved
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* and tested in the spec (i.e. some other implementation has also
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* implemented and tested!). Until then we use a flag: */
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ld->use_quickclose = false;
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return ld;
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}
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@ -283,9 +283,6 @@ struct lightningd {
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/* Should we re-exec ourselves instead of just exiting? */
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bool try_reexec;
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/* --experimental-quick-close */
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bool use_quickclose;
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/* Array of (even) TLV types that we should allow. This is required
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* since we otherwise would outright reject them. */
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u64 *accept_extra_tlv_types;
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@ -1062,10 +1062,6 @@ static void register_opts(struct lightningd *ld)
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"--subdaemon=hsmd:remote_signer "
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"would use a hypothetical remote signing subdaemon.");
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opt_register_noarg("--experimental-quick-close",
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opt_set_bool, &ld->use_quickclose,
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"EXPERIMENTAL: offer range to mutual close");
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opt_register_logging(ld);
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opt_register_version();
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@ -461,21 +461,6 @@ def test_closing_negotiation_step_30pct(node_factory, bitcoind, chainparams):
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closing_negotiation_step(node_factory, bitcoind, chainparams, opts)
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@unittest.skipIf(EXPERIMENTAL_FEATURES, "anchors uses quick-close, not negotiation")
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def test_closing_negotiation_step_50pct(node_factory, bitcoind, chainparams):
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"""Test that the closing fee negotiation step works, 50%, the default"""
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opts = {}
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opts['fee_negotiation_step'] = '50%'
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opts['close_initiated_by'] = 'opener'
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opts['expected_close_fee'] = 20334 if not chainparams['elements'] else 25789
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closing_negotiation_step(node_factory, bitcoind, chainparams, opts)
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opts['close_initiated_by'] = 'peer'
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opts['expected_close_fee'] = 20334 if not chainparams['elements'] else 25789
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closing_negotiation_step(node_factory, bitcoind, chainparams, opts)
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@unittest.skipIf(EXPERIMENTAL_FEATURES, "anchors uses quick-close, not negotiation")
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def test_closing_negotiation_step_100pct(node_factory, bitcoind, chainparams):
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"""Test that the closing fee negotiation step works, 100%"""
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@ -3331,7 +3316,7 @@ def test_anysegwit_close_needs_feature(node_factory, bitcoind):
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def test_close_feerate_range(node_factory, bitcoind, chainparams):
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"""Test the quick-close fee range negotiation"""
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l1, l2 = node_factory.line_graph(2, opts={'experimental-quick-close': None})
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l1, l2 = node_factory.line_graph(2)
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# Lowball the range here.
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l1.rpc.close(l2.info['id'], feerange=['253perkw', 'normal'])
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