580 lines
15 KiB
C
580 lines
15 KiB
C
#include "config.h"
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#include "../funder_policy.c"
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#include <ccan/array_size/array_size.h>
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#include <common/setup.h>
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#include <stdio.h>
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/* AUTOGENERATED MOCKS START */
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/* Generated stub for fromwire_bigsize */
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bigsize_t fromwire_bigsize(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_bigsize called!\n"); abort(); }
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/* Generated stub for fromwire_channel_id */
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bool fromwire_channel_id(const u8 **cursor UNNEEDED, size_t *max UNNEEDED,
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struct channel_id *channel_id UNNEEDED)
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{ fprintf(stderr, "fromwire_channel_id called!\n"); abort(); }
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/* Generated stub for fromwire_node_id */
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void fromwire_node_id(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, struct node_id *id UNNEEDED)
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{ fprintf(stderr, "fromwire_node_id called!\n"); abort(); }
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/* Generated stub for towire_bigsize */
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void towire_bigsize(u8 **pptr UNNEEDED, const bigsize_t val UNNEEDED)
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{ fprintf(stderr, "towire_bigsize called!\n"); abort(); }
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/* Generated stub for towire_channel_id */
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void towire_channel_id(u8 **pptr UNNEEDED, const struct channel_id *channel_id UNNEEDED)
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{ fprintf(stderr, "towire_channel_id called!\n"); abort(); }
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/* Generated stub for towire_node_id */
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void towire_node_id(u8 **pptr UNNEEDED, const struct node_id *id UNNEEDED)
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{ fprintf(stderr, "towire_node_id called!\n"); abort(); }
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/* AUTOGENERATED MOCKS END */
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struct test_case {
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struct amount_sat their_funds;
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struct amount_sat available_funds;
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struct amount_sat *our_last_funds;
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struct amount_sat channel_max;
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struct amount_sat lease_request;
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struct funder_policy policy;
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struct amount_sat exp_our_funds;
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bool expect_err;
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};
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struct test_case cases[] = {
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/* Straight fixed */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(100000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 1111,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(1111),
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.expect_err = false,
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},
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/* Match 0 */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(500),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = MATCH,
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.mod = 0,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = false,
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},
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/* Match 100 */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(6000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = MATCH,
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.mod = 100,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(5000),
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.expect_err = false,
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},
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/* Match 200 */
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{
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.their_funds = AMOUNT_SAT(2500),
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.available_funds = AMOUNT_SAT(6000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = MATCH,
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.mod = 200,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(5000),
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.expect_err = false,
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},
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/* Available 0 */
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{
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.their_funds = AMOUNT_SAT(2500),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = AVAILABLE,
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.mod = 0,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = false,
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},
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/* Available 50 */
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{
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.their_funds = AMOUNT_SAT(2500),
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.available_funds = AMOUNT_SAT(3000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = AVAILABLE,
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.mod = 50,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(1500),
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.expect_err = false,
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},
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/* Available 100+ */
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{
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.their_funds = AMOUNT_SAT(2500),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = AVAILABLE,
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.mod = 100,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(1000),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(5000),
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.expect_err = false,
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},
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/* Fixed above per-channel max*/
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.policy = {
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.opt = FIXED,
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/* We give these weird numbering so
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* they're easy to identify when they break */
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.mod = 1011,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(900),
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.per_channel_min = AMOUNT_SAT(100),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(900),
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.expect_err = false,
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},
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/* Fixed less than available space */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(5500),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 1002,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(500),
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.expect_err = false,
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},
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/* Fixed less than available funds */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(500),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(10000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 1001,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(500),
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.expect_err = false,
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},
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/* Peer is under 'min_their_funding' */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(1000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(10000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 999,
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.min_their_funding = AMOUNT_SAT(5001),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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/* Peer exceeds 'max_their_funding' */
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{
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.their_funds = AMOUNT_SAT(5001),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(10000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 998,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(500),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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/* Fixed less than available funds less reserve tank */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(1000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(10000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 997,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(100),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(900),
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.expect_err = false,
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},
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/* Fixed no funds available after reserve */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(999),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(10000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 996,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(1000),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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/* Fixed no funds in channel */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(5000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 995,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(1000),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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/* Fixed below per-channel min */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(5000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 988,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(10000),
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.per_channel_min = AMOUNT_SAT(989),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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/* By default, use lease request as ceiling */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(100000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(980),
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.policy = {
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.opt = MATCH,
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.mod = 100,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(100000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = false,
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},
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.exp_our_funds = AMOUNT_SAT(980),
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.expect_err = false,
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},
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/* Only fund lease requests */
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{
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.their_funds = AMOUNT_SAT(5000),
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.available_funds = AMOUNT_SAT(100000),
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.our_last_funds = NULL,
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.channel_max = AMOUNT_SAT(11000),
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.lease_request = AMOUNT_SAT(0),
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.policy = {
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.opt = FIXED,
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.mod = 985,
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.min_their_funding = AMOUNT_SAT(0),
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.max_their_funding = AMOUNT_SAT(10000),
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.per_channel_max = AMOUNT_SAT(100000),
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.per_channel_min = AMOUNT_SAT(0),
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.fuzz_factor = 0,
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.reserve_tank = AMOUNT_SAT(0),
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.fund_probability = 100,
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.leases_only = true,
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},
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.exp_our_funds = AMOUNT_SAT(0),
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.expect_err = true,
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},
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};
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static void check_fuzzing(struct test_case fuzzcase)
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{
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struct node_id id;
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struct amount_sat our_funds;
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struct amount_sat fuzz_max = AMOUNT_SAT(0),
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fuzz_min = AMOUNT_SAT(UINT_MAX);
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u64 fuzz_amt = fuzzcase.policy.mod * fuzzcase.policy.fuzz_factor / 100;
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|
|
|
memset(&id, 2, sizeof(struct node_id));
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|
|
|
for (size_t i = 0; i < 100; i++) {
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|
calculate_our_funding(&fuzzcase.policy, id,
|
|
fuzzcase.their_funds,
|
|
fuzzcase.our_last_funds,
|
|
fuzzcase.available_funds,
|
|
fuzzcase.channel_max,
|
|
fuzzcase.lease_request,
|
|
&our_funds);
|
|
if (amount_sat_greater(our_funds, fuzz_max))
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|
fuzz_max = our_funds;
|
|
if (amount_sat_less(our_funds, fuzz_min))
|
|
fuzz_min = our_funds;
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|
}
|
|
|
|
assert(fuzz_max.satoshis <= fuzzcase.policy.mod + fuzz_amt);
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|
assert(fuzz_min.satoshis >= fuzzcase.policy.mod - fuzz_amt);
|
|
}
|
|
|
|
int main(int argc, const char *argv[])
|
|
{
|
|
struct funder_policy *policy;
|
|
struct node_id id;
|
|
struct amount_sat empty = AMOUNT_SAT(0), our_funds;
|
|
bool ok = true;
|
|
size_t i = 0, flips = 0;
|
|
struct test_case flipcase, fuzzcase;
|
|
size_t flipcount = 0;
|
|
const char *err;
|
|
|
|
common_setup(argv[0]);
|
|
memset(&id, 2, sizeof(struct node_id));
|
|
|
|
/* Check the default funder policy, at fixed (0msat) */
|
|
policy = default_funder_policy(tmpctx, FIXED, 0);
|
|
|
|
err = calculate_our_funding(policy, id,
|
|
AMOUNT_SAT(50000),
|
|
NULL,
|
|
AMOUNT_SAT(50000),
|
|
AMOUNT_SAT(100000),
|
|
AMOUNT_SAT(100000),
|
|
&our_funds);
|
|
assert(amount_sat_eq(empty, our_funds));
|
|
assert(!err);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(cases); i++) {
|
|
err = calculate_our_funding(&cases[i].policy, id,
|
|
cases[i].their_funds,
|
|
cases[i].our_last_funds,
|
|
cases[i].available_funds,
|
|
cases[i].channel_max,
|
|
cases[i].lease_request,
|
|
&our_funds);
|
|
if (!amount_sat_eq(cases[i].exp_our_funds, our_funds)) {
|
|
fprintf(stderr, "FAIL policy: %s. expected %s, got %s\n",
|
|
funder_policy_desc(NULL, &cases[i].policy),
|
|
type_to_string(NULL, struct amount_sat,
|
|
&cases[i].exp_our_funds),
|
|
type_to_string(NULL, struct amount_sat,
|
|
&our_funds));
|
|
ok = false;
|
|
}
|
|
if (cases[i].expect_err != (err != NULL)) {
|
|
fprintf(stderr, "FAIL policy: %s. expected %serr,"
|
|
" got %s\n",
|
|
funder_policy_desc(NULL, &cases[i].policy),
|
|
cases[i].expect_err ? "" : "no ",
|
|
err ? err : "no err");
|
|
ok = false;
|
|
}
|
|
}
|
|
if (!ok)
|
|
exit(1);
|
|
|
|
/* Try a few fund_probabilitys, we should only fund
|
|
* 1/10th of the time */
|
|
flips = 10;
|
|
flipcase = cases[0];
|
|
flipcase.policy.fund_probability = flips;
|
|
|
|
for (i = 0; i < 100 * flips; i++) {
|
|
calculate_our_funding(&flipcase.policy, id,
|
|
flipcase.their_funds,
|
|
flipcase.our_last_funds,
|
|
flipcase.available_funds,
|
|
flipcase.channel_max,
|
|
flipcase.lease_request,
|
|
&our_funds);
|
|
if (!amount_sat_eq(our_funds, AMOUNT_SAT(0)))
|
|
flipcount++;
|
|
}
|
|
/* We should be close to 100, give or take 100 on each side */
|
|
assert(flipcount > 0);
|
|
assert(flipcount < 200);
|
|
|
|
/* Try some value fuzzing with a high fuzz (for roll overs) */
|
|
fuzzcase = cases[0];
|
|
fuzzcase.policy.mod = 1000;
|
|
/* This is higher than our allowed fuzz factor, it'll
|
|
* get shifted down to 100 */
|
|
fuzzcase.policy.fuzz_factor = 100;
|
|
check_fuzzing(fuzzcase);
|
|
|
|
/* Try some fuzzing with a low fuzz */
|
|
fuzzcase.policy.fuzz_factor = 1;
|
|
check_fuzzing(fuzzcase);
|
|
common_shutdown();
|
|
|
|
return 0;
|
|
}
|